QDEL / QuidelOrtho Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

QuidelOrtho Corporation
US ˙ NasdaqGS ˙ US2197981051

Mga Batayang Estadistika
LEI 549300X2FQ6S98OQLQ46
CIK 353569
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to QuidelOrtho Corporation
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
June 6, 2022 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 000-10961 QUIDEL CORPORATION (Exact name of registrant as specified in its

May 26, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporat

SD 1 qdelformsd2021.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 9975 Summers Ridge Road, San Diego CA 92121 (Address of Pri

May 26, 2022 EX-1.01

Conflict Minerals Report as required by Items 1.01 and 1.02 of Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For The Year Ended December 31, 2021 Introduction This Conflict Minerals Report (?Report?) of Quidel Corporation for the year ended December 31, 2021 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (?Rule?). Numerous terms in this Report are defined in Item 1.01 of Form SD promulgated under the Rule, and the reader

May 16, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 16, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numb

May 6, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numbe

May 6, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2022 QUIDEL CORPORATION (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numbe

May 5, 2022 SC 13G

QDEL / Quidel Corporation / Senvest Management, LLC - QUIDEL CORPORATION Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Quidel Corporation (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 74838J101 (CUSIP Number) April 28, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

May 5, 2022 425

Event Type: Q1 2022 Earnings Call Date: 2022-05-04 Company: Quidel Corp. Ticker: QDEL COMPANY PARTICIPANTS Ruben Argueta - Quidel Corp., Director-Investor Relations Douglas C. Bryant - Quidel Corp., President, Chief Executive Officer & Director Randa

Event Type: Q1 2022 Earnings Call Date: 2022-05-04 Company: Quidel Corp. Ticker: QDEL COMPANY PARTICIPANTS Ruben Argueta - Quidel Corp., Director-Investor Relations Douglas C. Bryant - Quidel Corp., President, Chief Executive Officer & Director Randall J. Steward - Quidel Corp., Chief Financial Officer OTHER PARTICIPANTS Jack Meehan - Analyst Andrew Cooper - Analyst MANAGEMENT DISCUSSION SECTION O

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORP

May 4, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 4, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numbe

May 4, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 4, 2022 QUIDEL CORPORATION (E

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

May 4, 2022 EX-99.1

QUIDEL REPORTS FIRST QUARTER 2022 FINANCIAL RESULTS

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL REPORTS FIRST QUARTER 2022 FINANCIAL RESULTS SAN DIEGO, CA ? May 4, 2022 ? Quidel Corporation (NASDAQ: QDEL), a provider of rapid diagnostic testing solutions, cellular-based virology assays and mole

April 11, 2022 DEFM14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFM14A 1 d273090ddefm14a.htm DEFM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as p

April 7, 2022 EX-99

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FIRST QUARTER 2022

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FIRST QUARTER 2022 SAN DIEGO ? (BUSINESS WIRE)?April 7, 2022?Quidel Corporation (NASDAQ: QDEL) (?Quidel?), a provider of rapid diagnostic testing solutions, cellular

April 7, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 7, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Num

March 11, 2022 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from N/A to N/A Commission file number

March 11, 2022 EX-10.40

Employment Offer Letter, dated as of November 12, 2020, between the Registrant and Michelle A. Hodges.

Exhibit 10.40 November 12, 2020 Michelle Hodges 5831 Country View Drive Yorba Linda, CA 92866 Dear Michelle: We are pleased to extend the following offer of employment to you: Title: Senior Vice President, General Counsel Reporting to: Doug Bryant ? President & CEO Compensation: $15,000.00 bi-weekly ($390,000 annualized) Annual Bonus: You will participate in our bonus plan with a target bonus of 7

February 18, 2022 EX-21.1

Subsidiaries of the Registrant.

Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT Company State or Country of Organization Diagnostic Hybrids, Inc. Ohio Quidel Cardiovascular Inc. Delaware Quidel Ireland Limited Ireland Quidel China Ltd. China

February 18, 2022 EX-10.32

between the R

Exhibit 10.32 TRANSITION AGREEMENT AND RELEASE THIS TRANSITION AGREEMENT AND RELEASE (this ?Agreement?) is made and entered as of November 2021 by and between QUIDEL CORPORATION, a Delaware corporation (the ?Company?), and Karen Gibson, an individual (?Gibson?). BACKGROUND A.Karen Gibson currently serves as the SVP, Digital Health and intends to retire from this current role and transition to the

February 18, 2022 EX-10.34

10-K for the year ended December 31, 2021.)

Exhibit 10.34 AGREEMENT RE: CHANGE IN CONTROL This AGREEMENT RE: CHANGE IN CONTROL (this ?Agreement?) is dated as of and is entered into by and between EXECUTIVE NAME (?Executive?) and Quidel Corporation, a Delaware corporation (the ?Company?). Background The Company believes that because of its position in the industry, financial resources and historical operating results there is a possibility t

February 18, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from N/A to N/A Commission file number: 0-10961 QUIDEL C

February 18, 2022 425

Event Type: Q4 2021 Earnings Call Date: 2022-02-17 Company: Quidel Corp. Ticker: QDEL COMPANY PARTICIPANTS Ruben Argueta - Quidel Corp., Director-Investor Relations Douglas C. Bryant - Quidel Corp., President, Chief Executive Officer & Director Randa

425 1 qdelq4earningscalltransc.htm 425 Event Type: Q4 2021 Earnings Call Date: 2022-02-17 Company: Quidel Corp. Ticker: QDEL COMPANY PARTICIPANTS Ruben Argueta - Quidel Corp., Director-Investor Relations Douglas C. Bryant - Quidel Corp., President, Chief Executive Officer & Director Randall J. Steward - Quidel Corp., Chief Financial Officer Unverified Participant OTHER PARTICIPANTS MANAGEMENT DISC

February 18, 2022 EX-10.39

Amendment to Individual Retirement Program for Randall Steward, dated February 1, 2022.

Exhibit 10.39 AMENDMENT TO QUIDEL CORPORATION INDIVIDUAL RETIREMENT PROGRAM FOR RANDY STEWARD This Amendment (this ?Amendment?) to the Quidel Corporation Individual Retirement Program for Randy Steward by and between Randall Steward (?Employee?) and Quidel Corporation (the ?Company?) is made effective as of February 1, 2022 by and between the Company and Employee (collectively, the ?Parties?). REC

February 17, 2022 425

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 17, 2022 QUIDEL CORPORATION (Exact nam

425 1 a425qdel202112318k991.htm 425 Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No. 001-39956) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT

February 17, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 17, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 17, 2022 EX-99.1

QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS SAN DIEGO, CA ? February 17, 2022 ? Quidel Corporation (NASDAQ: QDEL), a provider of rapid diagnostic testing solutions, cellular-based vir

February 14, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 9, 2022 QUIDEL CORPORATI

425 1 d310290d425.htm 425 Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No. 001-39956) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PU

February 14, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 9, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 14, 2022 SC 13G/A

QDEL / Quidel Corporation / BROWN CAPITAL MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 12)* Quidel Corporation (Name of Issuer) Common Stock, Par Value $0.001 (Title of Class of Securities) 74838J101 (CUSIP Number) Eddie C. Brown Brown Capital M

February 14, 2022 SC 13G

QDEL / Quidel Corporation / ALGER ASSOCIATES INC - QUIDEL CORPORATION Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Quidel Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 74838J101 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

February 10, 2022 SC 13G/A

QDEL / Quidel Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Quidel Corp. Title of Class of Securities: Common Stock CUSIP Number: 74838J101 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 1

February 4, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 31, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 4, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 31, 2022 QUIDEL CORPORATI

425 1 a425-8xk02x04x2022.htm 425 Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No. 001-39956) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT RE

February 4, 2022 EX-10.1

2022 Cash Incentive Compensation Plan. (Incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on February 4, 2022.)

Exhibit 10.1 2022 Cash Incentive Compensation Plan Eligible Employees: All executive officers, senior vice presidents and vice presidents of the Company are eligible for participation in the Company?s 2022 Cash Incentive Compensation Plan. Applicable Period: The 2022 Cash Incentive Plan applies to performance during the Company?s fiscal year ending December 31, 2022. In 2022, goals will be establi

February 4, 2022 EX-10.2

2022 Annual Equity Incentive Plan Grants to the Registrant’s Executive Officers. (Incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on February 4, 2022.)

Exhibit 10.2 2022 Annual Equity Incentive Plan The 2022 Annual Equity Incentive Plan provides for the issuance of equity incentive awards in the form of (i) non-qualified stock options; and (ii) time-based restricted stock units. Executive Officer Time-Based Restricted Stock Units (# shares) Non-Qualified Stock Options (# shares) Douglas C. Bryant President & Chief Financial Officer 27,043 27,043

February 4, 2022 EX-10.4

Form of Integration and Retention Bonus Letter. (Incorporated by reference to Exhibit 10.4 to the Registrant’s Form 8-K filed on February 4, 2022.)

[Quidel Letterhead] Exhibit 10.4 [Form of Integration/Retention Cash/Equity Bonus Award Letter] February 1, 2022 To: EMPLOYEE From: Doug Bryant Given the importance of our integration efforts related to our acquisition of Ortho Clinical Diagnostics, we have implemented a bonus program to recognize the extraordinary efforts a transaction of this magnitude will entail. Your bonus target is % of your

February 4, 2022 EX-10.3

Form of Success Fee Letter. (Incorporated by reference to Exhibit 10.3 to the Registrant’s Form 8-K filed on February 4, 2022.)

[Quidel Letterhead] Exhibit 10.3 [Form of Success Fee Letter] February 1, 2022 To: EMPLOYEE From: Doug Bryant Given the importance of our efforts to consummate our acquisition of Ortho Clinical Diagnostics, we have implemented a success fee bonus program to recognize the extraordinary efforts a transaction of this magnitude will entail. Your bonus target is 100% of your base salary that is current

January 27, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 22, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

January 18, 2022 425

(Key Messages)

425 1 d248329d425.htm 425 Filed by Ortho Clinical Diagnostics Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Quidel Corporation (Commission File No.: 000-10961) Date: January 18, 2022 Table of Contents Overview 3 Key Messages 4 Communications Plan 5 Documents 6 Ortho

January 12, 2022 425

Filed by Quidel Corporation

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

January 12, 2022 425

Filed by Quidel Corporation

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

January 6, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 6, 2022 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

January 6, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 6, 2022

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

January 6, 2022 EX-99.1

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2021; QUIDEL TO PRESENT VIRTUALLY AT 40th ANNUAL J.P. MORGAN HEALTHCARE CONFERENCE

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2021; QUIDEL TO PRESENT VIRTUALLY AT 40th ANNUAL J.P. MORGAN HEALTHCARE CONFERENCE SAN DIEGO ? (BUSINESS WIRE)?January 6, 2022?Quidel Corporation (NAS

December 27, 2021 425

Filed by Ortho Clinical Diagnostics Holdings plc

Filed by Ortho Clinical Diagnostics Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Quidel Corporation Commission File No.: 000-10961 Date: December 23, 2021

December 27, 2021 425

Please note that all content is for internal use only, contains confidential information, and is not for further distribution.

Filed by Ortho Clinical Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Quidel Corporation Commission File No.

December 27, 2021 425

Filed by Ortho Clinical Diagnostics Holdings plc

Filed by Ortho Clinical Diagnostics Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Quidel Corporation Commission File No.

December 27, 2021 425

Translations of this message will be available on Inside Ortho shortly

425 1 d248329d425.htm 425 Filed by Ortho Clinical Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Quidel Corporation Commission File No.: 000-10961 Date: December 23, 2021 DECEMBER 23, 2021 Important Message from CEO Chris Smith Translations of this message will be available on In

December 27, 2021 425

Quidel | Ortho Frequently Asked Questions

425 1 d248329d425.htm 425 Filed by Ortho Clinical Diagnostics Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Quidel Corporation Commission File No.: 000-10961 Date: December 23, 2021 Quidel | Ortho Frequently Asked Questions We remain committed to providing you with timely acquis

December 27, 2021 425

Filed by Ortho Clinical Diagnostics Holdings plc

425 1 d248329d425.htm 425 Filed by Ortho Clinical Diagnostics Holdings plc Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Quidel Corporation Commission File No.: 000-10961 Date: December 23, 2021

December 23, 2021 425

The following is a transcript of the conference call held on December 23, 2021 at 8:30 a.m. Eastern Time (5:30 a.m. Pacific Time).

425 1 d262906d425.htm 425 Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No. 001-39956) The following is a transcript of the conference call held on December 23, 2021 at 8:30 a.m. Easter

December 23, 2021 425

Filed by Quidel Corporation

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

December 23, 2021 EX-2.1

Business Combination Agreement, dated as of December 22, 2021, by and among Quidel Corporation, Ortho Clinical Diagnostics Holdings plc, Coronado Topco, Inc., Laguna Merger Sub, Inc., Orca Holdco, Inc. and Orca Holdco 2, Inc.+

Exhibit 2.1 BUSINESS COMBINATION AGREEMENT by and among QUIDEL CORPORATION, CORONADO TOPCO, INC., ORTHO CLINICAL DIAGNOSTICS HOLDINGS PLC, LAGUNA MERGER SUB, INC., ORCA HOLDCO, INC. and ORCA HOLDCO 2, INC. Dated as of December 22, 2021 TABLE OF CONTENTS ARTICLE I THE COMBINATIONS Section 1.1. The Combinations 3 Section 1.2. Closing 4 Section 1.3. Effective Time 5 Section 1.4. Effect of the Orca Sc

December 23, 2021 EX-10.1

Principal Stockholders Agreement, dated as of December 22, 2021, by and among Coronado Topco, Inc., Quidel Corporation, Ortho Clinical Diagnostics Holdings plc and the Initial Carlyle Stockholder (as defined therein).

Exhibit 10.1 PRINCIPAL STOCKHOLDERS AGREEMENT BY AND AMONG CORONADO TOPCO, INC., QUIDEL CORPORATION, ORTHO CLINICAL DIAGNOSTICS HOLDINGS PLC AND THE INITIAL CARLYLE STOCKHOLDER DECEMBER 22, 2021 TABLE OF CONTENTS Page SECTION I. DEFINITIONS 1 1.1 DraftingConventions; No Construction Against Drafter 1 1.2 Defined Terms 2 SECTION II. REPRESENTATIONS AND WARRANTIES AND COVENANTS 4 2.1 Representations

December 23, 2021 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 22, 2021 QUIDEL CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 22, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

December 23, 2021 425

Filed by Quidel Corporation

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

December 23, 2021 425

Filed by Quidel Corporation

Filed by Quidel Corporation Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Ortho Clinical Diagnostics Holdings plc (Commission File No.

December 23, 2021 EX-99.1

Quidel Corporation Signs Definitive Agreement to Acquire Ortho Clinical Diagnostics Strategic, transformational acquisition advances Quidel’s global leadership in diagnostics

Exhibit 99.1 Quidel Contacts: Ortho Clinical Diagnostics: Randy Steward Chief Financial Officer (858) 552-7931 Investors: Bryan Brokmeier, CFA [email protected] Media and Investors: Ruben Argueta (858) 646-8023 [email protected] Media: Lisa Hayes [email protected] Quidel Corporation Signs Definitive Agreement to Acquire Ortho Clinical Diagnostics Strategic, transfo

December 23, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 22, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

November 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL

November 4, 2021 EX-99.1

QUIDEL REPORTS THIRD QUARTER 2021 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

November 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 4, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

October 7, 2021 EX-99.1

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FISCAL THIRD QUARTER 2021

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FISCAL THIRD QUARTER 2021 SAN DIEGO, Ca ? (BUSINESS WIRE)?October 7, 2021?Quidel Corporation (NASDAQ: QDEL) (?Quidel?), a provider of rapid diagnostic testing soluti

October 7, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 7, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

August 6, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORPO

August 5, 2021 EX-99.1

QUIDEL REPORTS SECOND QUARTER 2021 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

August 5, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 5, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Nu

July 26, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 24, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Num

July 26, 2021 EX-99.1

QUIDEL ANNOUNCES AGREEMENT WITH BECKMAN COULTER THAT TERMINATES ONGOING LITIGATION AND TRANSITIONS BNP BUSINESS TO BECKMAN COULTER

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer (858) 646-8023 (858) 552-7931 [email protected] QUIDEL ANNOUNCES AGREEMENT WITH BECKMAN COULTER THAT TERMINATES ONGOING LITIGATION AND TRANSITIONS BNP BUSINESS TO BECKMAN COULTER ? Settlement Agreement ends litigation that began in November 2017, fol

July 26, 2021 EX-10.1

Master Agreement, dated as of July 24, 2021, by and among Quidel Corporation, Quidel Cardiovascular, Inc., and Beckman Coulter, Inc. (incorporated by reference to Exhibit 10.1 to the Form 8-K filed by Quidel Corporation on July 26, 2021)

Exhibit 10.1 CERTAIN INFORMATION OF THIS EXHIBIT (IDENTIFIED BY ?[***]?) HAS BEEN EXCLUDED FROM THIS EXHIBIT BECAUSE IT IS NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE AND CONFIDENTIAL. EXECUTION VERSION MASTER AGREEMENT This MASTER AGREEMENT (this ?Agreement?), dated as of July 24, 2021 (?Effective Date?), is entered into by and among Quidel Corporation, a Delaware corporati

June 1, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 9975 Summers Ridge Road, San Diego CA 92121 (Address of Principal Executive Offices) (

June 1, 2021 EX-1.01

Conflict Minerals Report as required by Items 1.01 and 1.02 of Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For The Year Ended December 31, 2020 Introduction This Conflict Minerals Report (?Report?) of Quidel Corporation for the year ended December 31, 2020 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (?Rule?). Numerous terms in this Report are defined in Item 1.01 of Form SD promulgated under the Rule, and the reader

May 19, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 18, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numb

May 12, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 7, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numbe

May 12, 2021 EX-10.1

Amendment No. 2 to Amended and Restated Credit Agreement

Exhibit 10.1 AMENDMENT NO. 2 TO AMENDED AND RESTATED CREDIT AGREEMENT This AMENDMENT NO. 2 TO AMENDED AND RESTATED CREDIT AGREEMENT dated as of May 7, 2021 (this ?Amendment?), is entered into by and among QUIDEL CORPORATION, a Delaware corporation (the ?Borrower?), the Guarantors (as identified on the signature pages hereto, and together with the Borrower, the ?Loan Parties?), the Lenders party he

May 7, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORP

May 6, 2021 EX-99.1

QUIDEL REPORTS FIRST QUARTER 2021 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

May 6, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numbe

April 22, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 22, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Nu

April 22, 2021 EX-99

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FIRST QUARTER 2021 Establishes distribution partnership agreement with McKesson to increase access to At-Home COVID-19 testing

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FIRST QUARTER 2021 Establishes distribution partnership agreement with McKesson to increase access to At-Home COVID-19 testing SAN DIEGO-(BUSINESS WIRE)?Apr 22, 2021

April 15, 2021 DEF 14A

- DEF 14A

DEF 14A 1 a2020def14-a.htm DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as per

March 2, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 26, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 19, 2021 EX-10.43

(Incorporated by reference to Exhibit 10.43 to the Registrant's Annual Report on Form 10-K for the year ended December 31, 2020.)

Exhibit 10.43 LEASE AGREEMENT by and between ARE-SD REGION NO. 71, LLC, a Delaware limited liability company, as Landlord and QUIDEL CORPORATION, a Delaware corporation, as Tenant Dated as of January 14, 2021 739237752.8 LEASE AGREEMENT THIS LEASE AGREEMENT (this ?Lease?) is made as of January 14, 2021 (the ?Effective Date?), by and between ARE-SD REGION NO. 71, LLC, a Delaware limited liability c

February 19, 2021 EX-21.1

Subsidiaries of the Registrant.

Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT Company State or Country of Organization Diagnostic Hybrids, Inc. Ohio Quidel Cardiovascular Inc. Delaware Quidel Ireland Limited Ireland Quidel China Ltd. China

February 19, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from N/A to N/A Commission file number: 0-10961 QUIDEL C

February 18, 2021 EX-99.1

QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

February 18, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 18, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 16, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 18* (EXIT FILING) Under the Securities Exchange Act of 1934 Quidel Corp (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 18* (EXIT FILING) Under the Securities Exchange Act of 1934 Quidel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 74838J101 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 11)* Qui

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 11)* Quidel Corporation (Name of Issuer) Common Stock, Par Value $0.001 (Title of Class of Securities) 74838J101 (CUSIP Number) Eddie C. Brown Brown Capital M

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Quidel Corp. Title of Class of Securities: Common Stock CUSIP Number: 74838J101 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1

February 5, 2021 EX-10.2

2021 Annual Equity Incentive Plan Grants to the Company's Executive Officers.

Exhibit 10.2 2021 Annual Equity Incentive Plan The 2021 Annual Equity Incentive Plan provides for the issuance of equity incentive awards in the form of (i) non-qualified stock options; (ii) time-based restricted stock units; and (iii) performance-based restricted stock units for the CEO and (i) non-qualified stock options and (ii) time-based restricted stock units for other executives. CEO: Execu

February 5, 2021 EX-10.1

2021 Cash Incentive Compensation Plan.

Exhibit 10.1 2021 Cash Incentive Compensation Plan Eligible Employees: All executive officers, senior vice presidents and vice presidents of the Company are eligible for participation in the Company’s 2021 Cash Incentive Compensation Plan. Applicable Period: The 2021 Cash Incentive Plan applies to performance during the Company’s fiscal year ending December 31, 2021. Components of the Plan and Cri

February 5, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 1, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

January 7, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 7, 2021 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

January 7, 2021 EX-99

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2020; WILL PRESENT VIRTUALLY AT 39th ANNUAL J.P. MORGAN HEALTHCARE CONFERENCE

EX-99 2 qdel-20210107exhibit991.htm EX-99 Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2020; WILL PRESENT VIRTUALLY AT 39th ANNUAL J.P. MORGAN HEALTHCARE CONFERENCE SAN DIEGO-(BUSINESS WIRE)—Jan

November 13, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 9, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

November 13, 2020 EX-10.1

Form of Indemnification Agreement – Corporate Officer and/or Director

Exhibit 10.1 INDEMNIFICATION AGREEMENT This Indemnification Agreement (this “Agreement”) is made as of this day of , 20 , by and between Quidel Corporation, a Delaware corporation (the “Company”) and (“Indemnitee”). RECITALS WHEREAS, the Board of Directors of the Company (the “Board of Directors”) has determined that in order to attract and retain qualified persons as directors and officers of the

November 13, 2020 EX-3.1

Amended and Restated Bylaws of Quidel Corporation, as of November 9, 2020. (Incorporated by reference to Exhibit 3.1 to the Registrant’s Form 8-K filed on November 13, 2020.)

Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF QUIDEL CORPORATION (As amended by the Board of Directors on November 9, 2020) ARTICLE I CORPORATE OFFICES SECTION 1.1 REGISTERED OFFICE The address of the registered office of Quidel Corporation (the “Corporation”) shall be 160 Greentree Drive, Suite 101, Dover, County of Kent, Delaware 19904. The name of the registered agent of the Corporation at such ad

October 30, 2020 EX-10.2

Agreement Re: Change in Control, entered into on October 22, 2020 between the Registrant and Tammi Ranalli.

Exhibit 10.2 AGREEMENT RE: CHANGE IN CONTROL This AGREEMENT RE: CHANGE IN CONTROL (this “Agreement”) is dated as of October 22, 2020 and is entered into by and between Tammi Ranalli (“Officer”) and Quidel Corporation, a Delaware corporation (the “Company”). Background The Company believes that because of its position in the industry, financial resources and historical operating results there is a

October 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL

October 30, 2020 EX-10.1

1 to Amended and Restated Credit Agreement dated September 11, 2020. (Incorporated by reference to Exhibit 10.1 of the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2020.)

Execution Version Exhibit 10.1 AMENDMENT NO. 1 TO AMENDED AND RESTATED CREDIT AGREEMENT This AMENDMENT NO. 1 TO AMENDED AND RESTATED CREDIT AGREEMENT dated as of September 11, 2020 (this “Amendment”), is entered into by and among QUIDEL CORPORATION, a Delaware corporation (the “Borrower”), the Guarantors (as identified on the signature pages hereto, and together with the Borrower, the “Loan Partie

October 30, 2020 EX-10.3

Agreement Re: Change in Control, entered into on October 22, 2020 between the Registrant and William Ferenczy.

Exhibit 10.3 AGREEMENT RE: CHANGE IN CONTROL This AGREEMENT RE: CHANGE IN CONTROL (this “Agreement”) is dated as of October 22, 2020 and is entered into by and between William Ferenczy (“Officer”) and Quidel Corporation, a Delaware corporation (the “Company”). Background The Company believes that because of its position in the industry, financial resources and historical operating results there is

October 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 29, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

October 29, 2020 EX-99.1

QUIDEL REPORTS THIRD QUARTER 2020 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

October 1, 2020 EX-99

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR THIRD QUARTER 2020 VIRTUAL INVESTOR DAY TO BE HELD ON NOVEMBER 12TH

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR THIRD QUARTER 2020 VIRTUAL INVESTOR DAY TO BE HELD ON NOVEMBER 12TH SAN DIEGO-(BUSINESS WIRE)—Oct 1, 2020- Quidel Corporation (NASDAQ: QDEL) (“Quidel”), a provider o

October 1, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 1, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

September 17, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 11, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission Fil

September 1, 2020 8-K

Regulation FD Disclosure - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 28, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

August 26, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 24, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

August 7, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 3, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Nu

July 31, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORPO

July 31, 2020 EX-10.1

Fourth Amendment to Single Tenant Absolute Net Lease.

Exhibit 10.1 FOURTH AMENDMENT TO SINGLE TENANT ABSOLUTE NET LEASE THIS FOURTH AMENDMENT TO SINGLE TENANT ABSOLUTE NET LEASE (this Amendment”) is entered into as of this 27th day of July, 2020, by and between 10165 MCKELLAR COURT, L.P., a California limited partnership (“Landlord”), and QUIDEL CORPORATION, a Delaware corporation (“Tenant”). RECITALS A.WHEREAS, Landlord and Tenant are parties to tha

July 30, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 30, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Num

July 30, 2020 EX-99.1

QUIDEL REPORTS SECOND QUARTER 2020 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

July 6, 2020 EX-99.1

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR SECOND QUARTER 2020

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR SECOND QUARTER 2020 SAN DIEGO-(BUSINESS WIRE)-July 6, 2020- Quidel Corporation (NASDAQ: QDEL) (“Quidel”), a provider of rapid diagnostic testing solutions, cellular-

July 6, 2020 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 1, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numb

June 11, 2020 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 10, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Num

June 11, 2020 EX-99.1

QUIDEL ANNOUNCES JACK SCHULER WILL RETIRE FROM QUIDEL’S BOARD OF DIRECTORS Forward-Looking Statements

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES JACK SCHULER WILL RETIRE FROM QUIDEL’S BOARD OF DIRECTORS Forward-Looking Statements SAN DIEGO-(BUSINESS WIRE)-JUNE 11, 2020-Quidel Corporation (NASDAQ: QDEL) ("Quidel"), a provider of rapi

June 10, 2020 SC 13G/A

QDEL / QUIDEL Corp. / BROWN CAPITAL MANAGEMENT LLC Passive Investment

SC 13G/A 1 fp0054474sc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 10)* Quidel Corporation (Name of Issuer) Common Stock, Par Value $0.001 (Title of Class of Securities) 74838J101 (CUSIP Number)

May 29, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 9975 Summers Ridge Road, San Diego CA 92121 (Address of Principal Executive Offices) (

May 29, 2020 EX-1.01

Conflict Minerals Report as required by Items 1.01 and 1.02 of Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For The Year Ended December 31, 2019 Introduction This Conflict Minerals Report (“Report”) of Quidel Corporation for the year ended December 31, 2019 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule”). Numerous terms in this Report are defined in Item 1.01 of Form SD promulgated under the Rule, and the reader

May 13, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 12, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numb

May 7, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORP

May 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Numbe

May 6, 2020 EX-99.1

QUIDEL REPORTS FIRST QUARTER 2020 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

April 9, 2020 DEF 14A

QDEL / QUIDEL Corp. DEF 14A - - DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ý Defin

February 14, 2020 SC 13G/A

QDEL / QUIDEL Corp. / BROWN CAPITAL MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 9)* Quidel Corporation (Name of Issuer) Common Stock, Par Value $0.001 (Title of Class of Securities) 74838J101 (CUSIP Number) Eddie C. Brown Brown Capital Ma

February 14, 2020 SC 13G/A

PACB / Pacific Biosciences of California, Inc. / FEINBERG LARRY N - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 17* Under the Securities Exchange Act of 1934 Quidel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 69404D108 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

February 13, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from N/A to N/A Commission file number: 0-10961 QUIDEL C

February 13, 2020 EX-21.1

Subsidiaries of the Registrant.

Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT Company State or Country of Organization Diagnostic Hybrids, Inc. Ohio Quidel Cardiovascular Inc. Delaware Quidel Ireland Limited Ireland Quidel China Ltd. China

February 13, 2020 EX-4.5

Description of Quidel Corporation’s Securities Registered Pursuant to Section 12 of the Exchange Act of 1934

EX-4.5 2 ex45.htm EXHIBIT 4.5 Description of Quidel Corporation’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 The following description of the material terms of the shares of Quidel Corporation registered under the Section 12 of the Securities Exchange Act of 1934, as amended, is only a summary and is subject to, and qualified in its entirety by reference to

February 12, 2020 SC 13G/A

QDEL / QUIDEL Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Quidel Corp Title of Class of Securities: Common Stock CUSIP Number: 74838J101 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

February 12, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 12, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 12, 2020 EX-99.1

QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS

Exhibit Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

February 5, 2020 EX-10.3

Individual Retirement Program for Werner Kroll.

Exhibit 10.3 February 4, 2020 Quidel Corporation Individual Retirement Program for Werner Kroll (“Employee”) Effective February 4, 2020 (“Effective Date”) This Individual Retirement Program (the “Program”) is awarded to Employee by the Board of Directors (the “Board”) of Quidel Corporation (the “Company”), on behalf of the Company, as an incentive for Employee to continue his employment with the C

February 5, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 03, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

February 5, 2020 EX-10.1

2020 Cash Incentive Compensation Plan. (Incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on February 5, 2020.)

Exhibit 10.1 2020 Cash Incentive Compensation Plan Eligible Employees: All non-Section 16 officers (“Vice Presidents”) and senior executives (Section 16) officers (“Executive Officers”) of the Company are eligible for participation in the Company’s 2020 Cash Incentive Compensation Plan. Applicable Period: The 2020 Cash Incentive Plan applies to performance during the Company’s fiscal year ending D

February 5, 2020 EX-10.2

2020 Annual Equity Incentive Plan Grants to the Registrant’s Executive Officers. (Incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on February 5, 2020.)

Exhibit 10.2 2020 Annual Equity Incentive Plan The 2020 Annual Equity Incentive Plan provides for the issuance of equity incentive awards in the form of (i) non-qualified stock options; (ii) time-based restricted stock units; and (iii) performance-based restricted stock units for the CEO and (i) non-qualified stock options and (ii) time-based restricted stock units for other executives. CEO: Execu

January 10, 2020 EX-99.1

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2019

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

January 10, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 9, 2020 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

November 22, 2019 EX-10.1

Individual Retirement Program for Randall Steward. (Incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on November 22, 2019.)

Exhibit 10.1 Quidel Corporation Individual Retirement Program for Randy Steward (“Employee”) Effective November 22, 2019 (“Effective Date”) This Individual Retirement Program (the “Program”) is awarded to Employee by the Board of Directors (the “Board”) of Quidel Corporation (the “Company”), on behalf of the Company, as an incentive for Employee to continue his employment with the Company as Chief

November 22, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 18, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

October 31, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL

October 30, 2019 EX-99.1

QUIDEL REPORTS THIRD QUARTER 2019 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

October 30, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 30, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File

August 29, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 29, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File N

August 9, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORPO

August 8, 2019 EX-99.1

QUIDEL REPORTS SECOND QUARTER 2019 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

August 8, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 8, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorporation) (Commission File Nu

June 24, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 a8-k2019x06x20.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 20, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (C

June 4, 2019 EX-10.1

Form of Exchange Agreement

Exhibit 10.1 Exchange Agreement June 4, 2019 Quidel Corporation 12544 High Bluff Drive, Suite 200 San Diego, California 92130 Attn: Randall J. Steward Re: Exchange of 3.25% Convertible Senior Notes due 2020 for Common Stock Ladies and Gentlemen: The undersigned investor (the “Investor”), for itself and on behalf of the beneficial owners listed on Exhibit B.1 hereto (“Accounts”) for whom the Invest

June 4, 2019 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 4, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-2573

May 31, 2019 SD

QDEL / QUIDEL Corp. SD - - SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 12544 High Bluff Drive, Suite 200, San Diego CA 92130 (Address of Principal Executive

May 31, 2019 EX-1.01

Conflict Minerals Report as required by Items 1.01 and 1.02 of Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For The Year Ended December 31, 2018 Introduction This Conflict Minerals Report (“Report”) of Quidel Corporation for the year ended December 31, 2018 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule”). Numerous terms in this Report are defined in Item 1.01 of Form SD promulgated under the Rule, and the reader

May 21, 2019 SC 13D/A

QDEL / QUIDEL Corp. / SCHULER JACK W Activist Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* QUIDEL CORPORATION (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 74838J101 (CUSIP Number) May 20, 2019 (Date of Event Which Requires Filing of This Statement) If the filing person has previously filed a statement on Schedule 13G to rep

May 16, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 14, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-2573

May 9, 2019 EX-10.1

Agreement Re: Change in Control, entered into on February 11, 2019 between the Registrant and Karen Gibson.

Exhibit 10.1 AGREEMENT RE: CHANGE IN CONTROL This AGREEMENT RE: CHANGE IN CONTROL (this “Agreement”) is dated as of February 11, 2019 and is entered into by and between Karen Gibson (“Officer”) and Quidel Corporation, a Delaware corporation (the “Company”). Background The Company believes that because of its position in the industry, financial resources and historical operating results there is a

May 9, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORP

May 8, 2019 EX-99.1

QUIDEL REPORTS FIRST QUARTER 2019 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

May 8, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 8, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-25738

April 11, 2019 DEF 14A

QDEL / QUIDEL Corp. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ý Defin

February 15, 2019 EX-10.36

Form of Restricted Stock Unit Award Grant Notice. (Incorporated by reference to Exhibit 10.36 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018.).

Exhibit 10.36 QUIDEL CORPORATION RESTRICTED STOCK UNIT AWARD GRANT NOTICE (2018 Equity Incentive Plan) Pursuant to Section 6.10 of the Quidel Corporation 2018 Equity Incentive Plan (the “Plan”), Quidel Corporation (the “Company”) hereby awards to you a Restricted Stock Unit Award covering the number of shares of the Company’s Common Stock set forth below (the “Award”). This Award will be evidenced

February 15, 2019 EX-10.39

Form of Notice of Grant of Nonqualified Stock Options and Option Agreement. (Incorporated by reference to Exhibit 10.39 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018.).

Exhibit 10.39 QUIDEL CORPORATION ID: 94-2573850 12544 High Bluff Drive, Suite 200 San Diego, CA 92130 Notice of Grant of Nonqualified Stock Options and Option Agreement Name Option Number: Address Plan: 2018 Effective , you have been granted a Nonqualified Stock Option to buy shares of Common Stock of Quidel Corporation (the “Company”) at $ per share, pursuant to Section 6.1 of the Quidel Corporat

February 15, 2019 EX-10.38

Form of Restricted Stock Unit Award Grant Notice. (Time Based) (Incorporated by reference to Exhibit 10.38 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018.).

Exhibit 10.38 QUIDEL CORPORATION RESTRICTED STOCK UNIT AWARD GRANT NOTICE (2018 Equity Incentive Plan) Pursuant to Section 6.10 of the Quidel Corporation 2018 Equity Incentive Plan (the “Plan”), Quidel Corporation (the “Company”) hereby awards to you a time-vested Restricted Stock Unit Award covering the number of shares of the Company’s Common Stock set forth below (the “Award”). This Award will

February 15, 2019 EX-21.1

Subsidiaries of the Registrant.

Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT Company State or Country of Organization Diagnostic Hybrids, Inc. Ohio Quidel Cardiovascular Inc. Delaware Quidel Ireland Limited Ireland

February 15, 2019 10-K

QDEL / QUIDEL Corp. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from N/A to N/A Commission file number: 0-10961 QUIDEL C

February 15, 2019 EX-10.37

Form of Restricted Stock Unit Award Grant Notice. (Performance Based) (Incorporated by reference to Exhibit 10.37 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018.).

Exhibit 10.37 QUIDEL CORPORATION RESTRICTED STOCK UNIT AWARD GRANT NOTICE (2018 Equity Incentive Plan) Pursuant to Section 6.10 of the Quidel Corporation 2018 Equity Incentive Plan (the “Plan”), Quidel Corporation (the “Company”) hereby awards to you a performance-based Restricted Stock Unit Award covering the number of shares of the Company’s Common Stock set forth below (the “Award”). This Award

February 15, 2019 EX-10.40

Form of Restricted Stock Unit Award Grant Notice. (Deferred) (Incorporated by reference to Exhibit 10.40 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018.).

Exhibit 10.40 QUIDEL CORPORATION RESTRICTED STOCK UNIT AWARD GRANT NOTICE (2018 Equity Incentive Plan) Pursuant to Section 6.10 of the Quidel Corporation 2018 Equity Incentive Plan (the “Plan”) and Quidel Corporation’s (the “Company”) deferred compensation programs (including the employee bonus election form and the director fee payment election form), the Company hereby awards to you a Restricted

February 14, 2019 SC 13G/A

QDEL / QUIDEL Corp. / BROWN CAPITAL MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 8)* Quidel Corporation (Name of Issuer) Common Stock, Par Value $0.001 (Title of Class of Securities) 74838J101 (CUSIP Number) Eddie C. Brown Brown Capital Ma

February 13, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 13, 2019 QUIDEL CORPORATION (Exact name of registrant as specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-10961 (Commission File Number) 94

February 13, 2019 EX-99.1

QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS SAN DIEGO, CA – (BusinessWire) - February 13, 2019 — Quidel Corporation (NASDAQ: QDEL), a provider of rapid diagnostic testing solutio

February 12, 2019 SC 13G/A

QDEL / QUIDEL Corp. / VANGUARD GROUP INC Passive Investment

quidelcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5 )* Name of issuer: Quidel Corp Title of Class of Securities: Common Stock CUSIP Number: 74838J101 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate

February 7, 2019 SC 13G/A

PACB / Pacific Biosciences of California, Inc. / FEINBERG LARRY N - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv512656sc13ga.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 16 Under the Securities Exchange Act of 1934 Quidel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 69404D108 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

February 6, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 4, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-

February 6, 2019 EX-10.2

2019 Annual Equity Incentive Plan Grants to the Registrant’s Executive Officers. (Incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on February 6, 2019.)

Exhibit 10.2 2019 Annual Equity Incentive Plan The 2019 Annual Equity Incentive Plan provides for the issuance of equity incentive awards in the form of (i) non-qualified stock options; (ii) time-based restricted stock units; and (iii) performance-based restricted stock units. Executive Officer Time-Based Restricted Stock Units (# shares) Performance-Based Restricted Stock Units (# shares) Non-Qua

February 6, 2019 EX-10.1

2019 Cash Incentive Compensation Plan.

Exhibit 10.1 2019 Cash Incentive Compensation Plan Eligible Employees: All non-Section 16 officers (“Vice Presidents”) and senior executives (Section 16) officers (“Executive Officers”) of the Company are eligible for participation in the Company’s 2019 Cash Incentive Compensation Plan. Applicable Period: The 2019 Cash Incentive Plan applies to performance during the Company’s fiscal year ending D

January 7, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 7, 2019 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-10961 (Commission File Number) 94-2

January 7, 2019 EX-99.1

QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2018

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL ANNOUNCES PRELIMINARY REVENUE FOR FOURTH QUARTER 2018 SAN DIEGO-(BUSINESS WIRE)-Jan 7, 2019- Quidel Corporation (NASDAQ: QDEL) (“Quidel”), a provider of rapid diagnostic testing solutions, cellu

December 20, 2018 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 18, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-10961 (Commission File Number) 94

December 18, 2018 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 12, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-10961 (Commission File Number) 94

December 7, 2018 8-K

Regulation FD Disclosure

8-K 1 qdel8-kbeckmanmotionruling.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 7, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporat

December 7, 2018 EX-99.1

QUIDEL COMMENTS ON CALIFORNIA COURT RULING

Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer (858) 646-8023 (858) 552-7931 [email protected] QUIDEL COMMENTS ON CALIFORNIA COURT RULING SAN DIEGO-(BUSINESS WIRE)-Dec 7, 2018- Quidel Corporation (NASDAQ: QDEL) (“Quidel”), a provider of rapid diagnostic testing solutions, cellular-based virology

November 7, 2018 EX-10.1

Amended and Restated Credit Agreement, by and among Company, as Borrower, Bank of America, N.A.as Administrative Agent, Swing Line Lender and L/C Issuer, JPMorgan Chase Bank, N.A., as Syndication Agent, Bank Of America Merrill Lynch and JP Morgan Chase Bank, N.A., as Joint Lead Arrangers and Joint Lead Bookrunners, dated as of August 31, 2018. (Incorporated by reference to Exhibit 10.1 of the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2018.)

Exhibit 10.1 Publish CUSIP Number: 74839TAF5 AMENDED AND RESTATED CREDIT AGREEMENT Dated as of August 31, 2018 among QUIDEL CORPORATION as the Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and The Other Lenders Party Hereto JPMORGAN CHASE BANK, N.A., as Syndication Agent BANK OF AMERICA MERRILL LYNCH and JPMORGAN CHASE BANK, N.A., as Joint Lead Arrange

November 7, 2018 10-Q

QDEL / QUIDEL Corp. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL

November 6, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 6, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-

November 6, 2018 EX-99.1

QUIDEL REPORTS THIRD QUARTER 2018 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

September 4, 2018 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 31, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-2

August 8, 2018 10-Q

QDEL / QUIDEL Corp. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORPO

August 7, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 7, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-25

August 7, 2018 EX-99.1

QUIDEL REPORTS SECOND QUARTER 2018 FINANCIAL RESULTS

Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.

June 1, 2018 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits

8-K 1 d586528d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 31, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 0-10961 94-2573850 (State or other jurisdiction of incorp

June 1, 2018 EX-10.1

Exchange Agreement, dated May 31, 2018. (Incorporated by reference to Exhibit 10.1 to of the Registrant’s Form 8-K filed on June 1, 2018.)

EX-10.1 Exhibit 10.1 Exchange Agreement May 31, 2018 Quidel Corporation 12544 High Bluff Drive, Suite 200 San Diego, California 92130 Attn: Randall J. Steward Re: Exchange of 3.25% Convertible Senior Notes due 2020 for Common Stock Ladies and Gentlemen: The undersigned investor (the “Investor”), for itself and on behalf of the beneficial owners listed on Exhibit B.1 hereto (“Accounts”) for whom th

May 30, 2018 EX-1.01

Conflict Minerals Report as required by Items 1.01 and 1.02 of Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For The Year Ended December 31, 2017 Introduction This Conflict Minerals Report (“Report”) of Quidel Corporation for the year ended December 31, 2017 is presented to comply with Rule 13p-1 under the Securities ExchanCMRge Act of 1934, as amended (“Rule”). Numerous terms in this Report are defined in Item 1.01 of Form SD promulgated under the Rule, and the read

May 30, 2018 SD

QDEL / QUIDEL Corp. SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 12544 High Bluff Drive, Suite 200, San Diego CA 92130 (Address of Principal Executive

May 16, 2018 S-8

QDEL / QUIDEL Corp. S-8

As filed with Securities and Exchange Commission on May 16, 2018 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 QUIDEL CORPORATION (Exact name of registrant as specified in its charter) Delaware 94-2573850 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Id

May 16, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 15, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-2573

May 9, 2018 10-Q

QDEL / QUIDEL Corp. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-10961 QUIDEL CORP

May 8, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 8, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-25738

May 8, 2018 EX-99.1

QUIDEL REPORTS FIRST QUARTER 2018 FINANCIAL RESULTS

Exhibit Exhibit 99.1

April 11, 2018 DEF 14A

Registrant’s Amended and Restated 2018 Equity Incentive Plan. (Incorporated by reference to Appendix A to the Registrant’s Proxy Statement filed on April 12, 2018.)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ý Defin

April 4, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 29, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-25

March 9, 2018 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 8, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-257

March 9, 2018 EX-10.1

Exchange Agreement, dated March 8, 2018. (Incorporated by reference to Exhibit 10.1 to of the Registrant’s Form 8-K filed on March 9, 2018.)

Exhibit 10.1 Exchange Agreement March 8, 2018 Quidel Corporation 12544 High Bluff Drive, Suite 200 San Diego, California 92130 Attn: Randall J. Steward Re: Exchange of 3.25% Convertible Senior Notes due 2020 for Common Stock Ladies and Gentlemen: The undersigned investor (the “Investor”), for itself and on behalf of the beneficial owners listed on Exhibit B.1 hereto (“Accounts”) for whom the Inves

February 27, 2018 EX-21.1

Subsidiaries of the Registrant.

Exhibit 21.1* SUBSIDIARIES OF THE REGISTRANT Company State or Country of Organization Diagnostic Hybrids, Inc. Ohio Quidel Cardiovascular Inc. Delaware

February 27, 2018 EX-10.33(1)

Employment Offer Letter, dated October 16, 2017, between the Registrant and Ratan S. Borkar.

Exhibit 10.33 [Quidel Letterhead] October 16, 2017 Ratan Borkar [Address] [Address] Dear Ratan: We are pleased to extend the following offer of employment to you: Title: Senior Vice President, International Commercial Operations Reporting to: Doug Bryant, President & CEO Compensation: $12,500.00 bi-weekly ($325,000 annualized) Annual Bonus: You will participate in the SVP bonus plan with a target

February 27, 2018 10-K

QDEL / QUIDEL Corp. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from N/A to N/A Commission file number: 0-10961 QUIDEL C

February 27, 2018 EX-10.34(1)

Agreement Re: Change in Control, entered into on October 16, 2017, between the Registrant and Ratan S. Borkar.

Exhibit 10.34 AGREEMENT RE: CHANGE IN CONTROL This AGREEMENT RE: CHANGE IN CONTROL (this “Agreement”) is dated as of October 16, 2017 and is entered into by and between Ratan S. Borkar (“Executive”) and Quidel Corporation, a Delaware corporation (the “Company”). Background The Company believes that because of its position in the industry, financial resources and historical operating results there

February 27, 2018 EX-10.29

Credit Agreement, by and among the Company, as Borrower, Bank of America, N.A. as Administrative Agent, Swing Line Lender and L/C Issuer, JPMorgan Chase Bank, N.A. as Syndication Agent, Bank of the West, Citibank, N.A., Compass Bank, Fifth Third Bank, MUFG Union Bank, Silicon Valley Bank, Wells Fargo Bank, National Association and ZB, N.A., DBA California Bank & Trust, as Co-Documentation Agents, Bank of America Merrill Lynch and JP Morgan Chase Bank, N.A. as Joint Lead Arrangers and Joint Lead Bookrunners, dated as of October 6, 2017.

Exhibit 10.29 - Publish CUSIP Number: 74839TAC2 Revolving Credit CUSIP Number: 74839TAD0 Term Loan CUSIP Number: 74839TAE8 CREDIT AGREEMENT Dated as of October 6, 2017 among QUIDEL CORPORATION as the Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and The Other Lenders Party Hereto JPMORGAN CHASE BANK, N.A., as Syndication Agent BANK OF THE WEST, CITIBAN

February 26, 2018 8-K

Other Events

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 26, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File N

February 21, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 21, 2018 QUIDEL CORPORATION (Exact name of registrant as specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-10961 (Commission File N

February 21, 2018 EX-99.1

QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS

Exhibit Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL REPORTS FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS SAN DIEGO, CA ? (Marketwired) - February 21, 2018 ? Quidel Corporation (NASDAQ: QDEL), a provider of rapid diagnostic testing

February 14, 2018 SC 13G/A

PACB / Pacific Biosciences of California, Inc. / FEINBERG LARRY N - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 15 Under the Securities Exchange Act of 1934 Quidel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 69404D108 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

February 14, 2018 SC 13G/A

QDEL / QUIDEL Corp. / BROWN CAPITAL MANAGEMENT LLC Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 7)* Quidel Corporation (Name of Issuer) Common Stock, Par Value $0.001 (Title of Class of Securities) 74838J101 (CUSIP Number) December 31, 2017 (Date of Eve

February 12, 2018 SC 13G/A

QDEL / QUIDEL Corp. / VANGUARD GROUP INC Passive Investment

quidelcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Quidel Corp Title of Class of Securities: Common Stock CUSIP Number: 74838J101 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to designate

February 9, 2018 SC 13D/A

QDEL / QUIDEL Corp. / SCHULER JACK W - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* QUIDEL CORPORATION (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 74838J101 (CUSIP Number) February 9, 2018 (Date of Event Which Requires Filing of This Statement) If the filing person has previously filed a statement on Schedule 13G to

February 2, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 29, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-

January 22, 2018 EX-10.1

2018 Cash Incentive Compensation Plan.

Exhibit Exhibit 10.1 2018 Cash Incentive Compensation Plan Eligible Employees : All non-Section 16 officers (?Vice Presidents?) and senior executives (Section 16) officers (?Executive Officers?) of the Company are eligible for participation in the Company?s 2018 Cash Incentive Compensation Plan. Applicable Period : The 2018 Cash Incentive Plan applies to performance during the Company?s fiscal yea

January 22, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 16, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Nu

January 22, 2018 EX-10.2

2018 Annual Equity Incentive Plan Grants to the Registrant's Executive Officers. (Incorporated by reference to Exhibit 10.2 to the Registrant's Form 8-K filed on January 22, 2018.)

Exhibit Exhibit 10.2 2018 Annual Equity Incentive Plan The 2018 Annual Equity Incentive Plan provides for the issuance of equity incentive awards in the form of (i) non-qualified stock options; (ii) time-based restricted stock units; and (iii) performance-based restricted stock units. Executive Officer Time-Based Restricted Stock Units (# shares) Performance-Based Restricted Stock Units (# shares)

January 9, 2018 8-K

QDEL / QUIDEL Corp. 8-K (Current Report)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 5, 2018 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Num

January 9, 2018 EX-10.1

Summers Ridge Lease. (Incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on January 9, 2018.)

Exhibit Exhibit 10.1 BUILDINGS C, D AND AMENITY CENTER LEASE AGREEMENT by and between ARE-SD REGION NO. 48 LLC , a Delaware limited liability company, as Landlord and QUIDEL CORPORATION , a Delaware corporation, as Tenant Dated as of January 5, 2018 TABLE OF CONTENTS 1. Premises, Parking Areas 1 2. Term 2 3. Renewal Options 2 4. Rent 3 5. Alterations 7 6. Use of Premises and Land; Compliance with

January 9, 2018 EX-99.1

Quidel Corporation

Exhibit Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer (858) 646-8023 (858) 552-7931 [email protected] QUIDEL COMPLETES SALE LEASEBACK OF SUMMERS RIDGE PROPERTY FOR $148.65 MILLION Generates more than $142 million in immediately available net cash proceeds SAN DIEGO, January 5, 2018 (Business Wir

December 19, 2017 EX-99.2

Triage MeterPro System and Triage BNP Test for Beckman Coulter Immunoassay System (Triage and BNP Product Lines or collectively the Product Lines of Alere, Inc.) Index to Special Purpose Combined Financial Statements Report of Independent Auditors 3

Exhibit Exhibit 99.2 Triage MeterPro System and Triage BNP Test for Beckman Coulter Immunoassay System (Triage and BNP Product Lines or collectively the Product Lines of Alere, Inc.) Special Purpose Combined Statements of Assets Acquired and Liabilities Assumed as of September 30, 2017 (unaudited), December 31, 2016 and 2015. Special Purpose Combined Statements of Revenues and Direct Expenses for

December 19, 2017 EX-99.1

Quidel Files Form 8-K/A, Reports Historical and Pro Forma Financial Information for Acquired Triage Assets and Combined Quidel and Triage Businesses

Exhibit Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] Quidel Files Form 8-K/A, Reports Historical and Pro Forma Financial Information for Acquired Triage Assets and Combined Quidel and Triage Businesses SAN DIEGO, CA ? December 19, 2017 ? Quidel C

December 19, 2017 8-K/A

QDEL / QUIDEL Corp. 8-K/A (Current Report)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 6, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File N

December 19, 2017 EX-99.3

QUIDEL CORPORATION UNAUDITED PRO FORMA COMBINED ABBREVIATED FINANCIAL INFORMATION

Exhibit Exhibit 99.3 QUIDEL CORPORATION UNAUDITED PRO FORMA COMBINED ABBREVIATED FINANCIAL INFORMATION On October 6, 2017, Quidel Corporation and its subsidiaries (the "Company" or "Quidel") acquired the cardiovascular and toxicology Triage? MeterPro business (?Triage Business?) and Beckman Coulter Access Family of Immunoassay Systems (the ?BNP Business?) from Alere Inc. (collectively, the ?Triage

November 2, 2017 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe

November 1, 2017 8-K

QUIDEL 8-K (Current Report/Significant Event)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 1, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Nu

November 1, 2017 EX-99.1

QUIDEL REPORTS THIRD QUARTER 2017 FINANCIAL RESULTS

Exhibit Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Angie Mazza Chief Financial Officer 312.690.6006 858.552.7931 [email protected] QUIDEL REPORTS THIRD QUARTER 2017 FINANCIAL RESULTS SAN DIEGO, CA ? November 1, 2017 ? Quidel Corporation (NASDAQ: QDEL), a provider of rapid diagnostic testing solutions, cellular-based virol

October 19, 2017 EX-24

EX-24

POWER OF ATTORNEY The undersigned hereby constitutes and appoints each of Douglas Bryant, Robert Bujarski, and Randall Steward, signing singly and not jointly, the undersigned's true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned, any and all Forms 3, 4, and 5 (including any amendments thereto) required to be filed under Section 16(a) of the Securities Exchange Ac

October 10, 2017 SC 13G/A

QUIDEL QDEL AS OF 09/30/2017 (Passive Acquisition of More Than 5% of Shares)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 15) QUIDEL CORP (Name of Issuer) COMMON STOCK (Title of Class of Securities) 74838J101 (CUSIP Number) September 30, 2017 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedule is fil

October 6, 2017 EX-99.1

Quidel Announces Closing of Acquisition of Alere Triage® Assets Creating an Expanded Portfolio of Rapid Diagnostic Capabilities in Critical Care Settings

Exhibit Exhibit 99.1 News Release Quidel Announces Closing of Acquisition of Alere Triage® Assets Creating an Expanded Portfolio of Rapid Diagnostic Capabilities in Critical Care Settings SAN DIEGO, CALIFORNIA – October 6, 2017 – Quidel Corporation (NASDAQ: QDEL) (“Quidel”), a provider of rapid diagnostic testing solutions, cellular-based virology assays and molecular diagnostic systems, announced

October 6, 2017 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 6, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 94-2

September 18, 2017 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 15, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (Commission File Number) 9

September 18, 2017 EX-10.1

Amended and Restated Triage Purchase Agreement, dated September 15, 2017. (Incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on October 6, 2017.)

Exhibit 10.1 AMENDED AND RESTATED TRIAGE PURCHASE AGREEMENT by and among ALERE INC., QUIDEL CARDIOVASCULAR INC., for purposes of Sections 6.13 and 12.15, QUIDEL CORPORATION and for the limited purposes herein set forth, ABBOTT LABORATORIES Dated as of September 15, 2017 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 SECTION 1.01. Certain Defined Terms. 2 SECTION 1.02. Definitions. 11 SECTION 1.03. Inte

September 18, 2017 EX-99.1

Quidel Announces Revised Agreement for Its Pending Acquisition of Alere’s B-type Naturietic Peptide (BNP) Assay Business Run on Beckman Coulter Analyzers Revised agreement reflects Quidel’s direct commercial responsibility for all Beckman Coulter BNP

News Release Exhibit 99.1 Quidel Announces Revised Agreement for Its Pending Acquisition of Alere?s B-type Naturietic Peptide (BNP) Assay Business Run on Beckman Coulter Analyzers Revised agreement reflects Quidel?s direct commercial responsibility for all Beckman Coulter BNP sales globally, while the business arrangement for the pending acquisition of Alere?s Triage? MeterPro assets is substantia

September 18, 2017 EX-10.2

Amended and Restated BNP Purchase Agreement, dated September 15, 2017. (Incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on October 6, 2017.)

Exhibit 10.2 AMENDED AND RESTATED PURCHASE AGREEMENT by and among ALERE INC., QUIDEL CARDIOVASCULAR, INC., for purposes of Section 11.15, QUIDEL CORPORATION and for the limited purposes herein set forth, ABBOTT LABORATORIES Dated as of September 15, 2017 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 SECTION 1.01. Certain Defined Terms. 1 SECTION 1.02. Definitions. 12 SECTION 1.03. Interpretation. 13 A

July 27, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2017 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-

July 26, 2017 EX-99.1

QUIDEL REPORTS SECOND QUARTER 2017 FINANCIAL RESULTS

Exhibit Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL REPORTS SECOND QUARTER 2017 FINANCIAL RESULTS SAN DIEGO, CA ? (Marketwired) - July 26, 2017 ? Quidel Corporation (NASDAQ: QDEL), a provider of rapid diagnostic testing solutions, cellula

July 26, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 qdel-201706308xk.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 26, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961

July 17, 2017 EX-10

TRIAGE PURCHASE AGREEMENT by and among ALERE INC., QTB ACQUISITION CORP., for purposes of Sections 6.13 and 12.15, QUIDEL CORPORATION for the limited purposes herein set forth, ABBOTT LABORATORIES Dated as of July 15, 2017 TABLE OF CONTENTS ARTICLE I

Exhibit 10.1 TRIAGE PURCHASE AGREEMENT by and among ALERE INC., QTB ACQUISITION CORP., for purposes of Sections 6.13 and 12.15, QUIDEL CORPORATION and for the limited purposes herein set forth, ABBOTT LABORATORIES Dated as of July 15, 2017 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 SECTION 1.01. Certain Defined Terms. 1 SECTION 1.02. Definitions. 11 SECTION 1.03. Interpretation. 13 ARTICLE II PURCH

July 17, 2017 EX-10

Commitment Letter dated July 15, 2017 by and among the Company, Bank of America, N.A. and JPMorgan Chase Bank, N.A., as the Initial Lenders, and Merrill Lynch, Pierce, Fenner & Smith Incorporated (or any of its designated affiliates) and JPMorgan, as the Lead Arrangers. (Incorporated by reference to Exhibit 10.3 to the Registrant's Form 8-K filed on July 17, 2017.)

Exhibit 10.3 Merrill Lynch, Pierce, Fenner & Smith Incorporated Bank of America, N.A. JPMorgan Chase Bank, N.A. July 15, 2017 Quidel Corporation 12544 High Bluff Drive Suite 200 San Diego, California 92130 Attention: Randall J. Steward, Chief Financial Officer Project Temple Commitment Letter for $270 Million Senior Secured Credit Facilities Ladies and Gentlemen: Quidel Corporation (?you? or the ?

July 17, 2017 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K 1 qdel71720178-k.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 15, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 0-10961 (C

July 17, 2017 EX-10

PURCHASE AGREEMENT by and among ALERE INC., QTB ACQUISITION CORP., for purposes of Section 11.15, QUIDEL CORPORATION for the limited purposes herein set forth, ABBOTT LABORATORIES Dated as of July 15, 2017 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 SE

Exhibit 10.2 PURCHASE AGREEMENT by and among ALERE INC., QTB ACQUISITION CORP., for purposes of Section 11.15, QUIDEL CORPORATION and for the limited purposes herein set forth, ABBOTT LABORATORIES Dated as of July 15, 2017 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 SECTION 1.01. Certain Defined Terms. 1 SECTION 1.02. Definitions. 11 SECTION 1.03. Interpretation. 12 ARTICLE II PURCHASE AND SALE 13 S

July 17, 2017 EX-99

Quidel Announces Definitive Agreement to Acquire Alere Triage® Assets Combination creates an expanded, less seasonal portfolio of rapid diagnostic capabilities in critical care settings

Exhibit News Release Exhibit 99.1 Quidel Announces Definitive Agreement to Acquire Alere Triage ? Assets Combination creates an expanded, less seasonal portfolio of rapid diagnostic capabilities in critical care settings Transaction Highlights: ? Acquiring the assets of the Triage ? MeterPro cardiovascular and toxicology business, and the Triage BNP business from Alere Inc. ? Diversifies Quidel?s

May 31, 2017 EX-1.01

CONFLICT MINERALS REPORT For The Year Ended December 31, 2016

Exhibit Exhibit 1.01 CONFLICT MINERALS REPORT For The Year Ended December 31, 2016 Introduction This Conflict Minerals Report (?Report?) of Quidel Corporation for the year ended December 31, 2016 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (?Rule?). Numerous terms in this Report are defined in Item 1.01 of Form SD promulgated under the Rule, and the

May 31, 2017 SD

QUIDEL SD

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD Specialized Disclosure Report QUIDEL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 0-10961 94-2573850 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 12544 High Bluff Drive, Suite 200, San Diego CA 92130 (Address of Principal E

May 17, 2017 8-K

QUIDEL 8-K (Current Report/Significant Event)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 16, 2017 QUIDEL CORPORATION (Exact name of Registrant as specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-10961 (Commission File Number

May 17, 2017 EX-99.1

QUIDEL COMPLETES ACQUISITION OF INFLAMMADRY® AND ADENOPLUS® EYE-HEALTH BUSINESSES

Exhibit Exhibit 99.1 Quidel Contact: Media and Investors Contact: Quidel Corporation Quidel Corporation Randy Steward Ruben Argueta Chief Financial Officer 858.646.8023 858.552.7931 [email protected] QUIDEL COMPLETES ACQUISITION OF INFLAMMADRY? AND ADENOPLUS? EYE-HEALTH BUSINESSES SAN DIEGO, May 16, 2017 (MarketWired) - Quidel Corporation (NASDAQ: QDEL) , a provider of rapid diagnostic test

April 27, 2017 10-Q

QUIDEL 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2017 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0

Other Listings
MX:QDEL1
GB:0A55
DE:QL1A € 23.80
Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista