RDGA / Ridgefield Acquisition Corp. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 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 000

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 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 00

Insider Trading Policy

Exhibit 19.1 Ridgefield Acquisition Corp Insider Trading Policy 1. Purpose The purpose of this Insider Trading Policy (the “Policy”) is to ensure that directors, officers, employees, and certain consultants of Ridgefield Acquisition Corp (the “Company”) comply with U.S. securities laws prohibiting insider trading. This Policy is designed to prevent even the appearance of improper conduct related t

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

Table of Contents 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, 2024 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 000-163

Description of the Registrant’s Securities

Exhibit 4.1 Description of the Registrant’s Securities The following description of the common stock of Ridgefield Acquisition Corp (the “Company”) is a summary and does not purport to be complete. This summary is subject to, and qualified in its entirety by reference to, the Company’s Certificate of Incorporation and Bylaws, as amended, and applicable provisions of the Nevada Revised Statutes (th

Compensation Recovery Policy

Exhibit 97.1 Ridgefield Acquisition Corp Compensation Recovery Policy 1. Purpose The purpose of this Compensation Recovery Policy (the “Policy”) is to comply with Rule 10D-1 of the Securities Exchange Act of 1934, Item 601(b)(97) of Regulation S-K, and other applicable listing requirements by establishing a framework for the recovery of certain incentive-based compensation in the event of an accou

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 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

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 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 000

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 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 00

RDGA / Ridgefield Acquisition Corp. / BRONSON STEVEN N - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 24)* Ridgefield acquisition corp. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 765816 10 3 (CUSIP Number) Steven N. Bronson Chief Executive Officer Ridgefield Acquisition Corp. 3827 S. Carson St., Unit 505-25, PMB

Joint Filing Agreement by and among SB4 Investments LLC and Steven N. Bronson, dated July 1, 2022.

EX-99.1 2 tm2412895d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D dated July 1, 2022 (including amendments thereto) with respect to the shares of Common Stock, par value $0.001 per s

Unregistered Sales of Equity Securities

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 23, 2024 RIDGEFIELD ACQUISITION CORP. (Exact Name of Registrant as Specified in Charter) Nevada 000-16335 84-0922701 (State or Other Jurisdiction (Commission (IRS Employer of In

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant Legal Name Owned By State or Other Jurisdiction of Incorporation or Organization Bio-Medical Automation, Inc. Ridgefield Acquisition Corp Nevada

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

Table of Contents 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, 2023 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 000-163

Letter from MaloneBailey, LLC to the Securities and Exchange Commission dated December 4, 2023.

Exhibit 16.1 December 4, 2023 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read Item 4.01 of Form 8-K of Ridgefield Acquisition Corporation dated December 4, 2023, and agree with the statements concerning our firm contained therein. We have no basis to agree or disagree with other statements of the registrant contained therein. Very truly yours,

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

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 4, 2023 RIDGEFIELD ACQUISITION CORP. (Exact name of registrant as specified in its charter) Nevada 000-36335 84-0922701 (State or other jurisdiction (Commission (IRS Employer

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 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

RDGA / Ridgefield Acquisition Corp. / BRONSON STEVEN N - SC 13D/A Activist Investment

SC 13D/A 1 tm2328615d1sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 23)* Ridgefield acquisition corp. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 765816 10 3 (CUSIP Number) Steven N. Bronson Chief Executive Officer Ridgefield Acquisition C

Joint Filing Agreement by and among SB4 Investments LLC and Steven N. Bronson, dated July 1, 2022.

EX-99.1 2 tm2328615d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D dated July 1, 2022 (including amendments thereto) with respect to the shares of Common Stock, par value $0.001 per s

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 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 000

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 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 00

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant Legal Name Owned By State or Other Jurisdiction of Incorporation or Organization Bio-Medical Automation, Inc. Ridgefield Acquisition Corp Nevada

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

Table of Contents 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, 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 000-163

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 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 numbe

Revolving Promissory Note, dated as of September 27, 2022, between the Company and Qualstar Corporation, incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10 Q for the period ended September 30, 2022.

EX-10.1 2 rdga-20220930xex10d1.htm EX-10.1 Exhibit 10.1 $200,000.00 September 27, 2022 Irvine, California RIDGEFIELD ACQUISITION CORP. REVOLVING PROMISSORY NOTE FOR VALUE RECEIVED, the undersigned, Ridgefield Acquisition Corp., a Nevada corporation (“Borrower”), promises to pay to the order of Qualstar Corporation, a California corporation (hereafter, together with any holder hereof, called “Lende

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): September 27, 2022 RIDGEFIELD ACQUISITION CORP. (Exact Name of Registrant as Specified in Charter) Nevada 000-16335 84-0922701 (State or Other Jurisdiction (Commission (IRS Employer o

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) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 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 000

RDGA / Ridgefield Acquisition Corp. / BRONSON STEVEN N - SC 13D/A Activist Investment

SC 13D/A 1 tm2220210d1sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 22)* Ridgefield acquisition corp. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 765816 10 3 (CUSIP Number) Steven N. Bronson Chief Executive Officer Ridgefield Acquisition C

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D dated July 1, 2022 (including amendments thereto) with respect to the shares of Common Stock, par value $0.001 per share, of Ridgefield Acquisition Corp. This Jo

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) ☒ 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 00

Revolving Promissory Note, dated as of March 23, 2022, between the Company and Steven N. Bronson, incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10 Q for the period ended March 31, 2022.

Exhibit 10.1 REVOLVING PROMISSORY NOTE Carson City, Nevada $200,000.00 March 23, 2022 This Revolving Promissory Note (this 'NOTE') is made and delivered as of March 23, 2022 between Borrower and Lender (as such terms are defined below) 1. OBLIGATION. The undersigned, Ridgefield Acquisition Corp., a Nevada corporation ('BORROWER') hereby promises to pay to the order of Steven N. Bronson, an individ

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): March 23, 2022 RIDGEFIELD ACQUISITION CORP. (Exact Name of Registrant as Specified in Charter) Nevada 000-16335 84-0922701 (State or Other Jurisdiction (Commission (IRS Employer of In

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

Table of Contents 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 to Commission file number 000-163

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant ? ? ? ? Legal Name Owned By State or Other Jurisdiction of Incorporation or Organization Bio-Medical Automation, Inc. Ridgefield Acquisition Corp Nevada ?

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

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

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) ☒ 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 000

Quarterly Report - FORM 10-Q

10-Q 1 tm2111756d110q.htm FORM 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, 2021 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commiss

Unregistered Sales of Equity Securities

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 26, 2021 RIDGEFIELD ACQUISITION CORP. (Exact Name of Registrant as Specified in Charter) Nevada 000-16335 84-0922701 (State or Other Jurisdiction (Commission (IRS Employer of In

Amended and Restated Revolving Promissory Note, dated as of November 1, 2020, between the Company and Steven N. Bronson.

EX-10.3 2 tm211162d1ex10-3.htm EXHIBIT 10.3 Exhibit 10.3 RIDGEFIELD ACQUISITION CORP. FIRST AMENDMENT TO REVOLVING PROMISSORY NOTE THIS FIRST AMENDMENT TO REVOLVING PROMISSORY NOTE (the “Amendment”), dated as of November 1, 2020, is entered into by Ridgefield Acquisition Corp., a Delaware corporation (the “Borrower”) and Steven N. Bronson, an individual residing in California (the “Holder”). WHERE

Subsidiaries of the Registrant

EX-21.1 3 tm211162d1ex21-1.htm EXHIBIT 21.1 Exhibit 21.1 Subsidiaries of the Registrant Legal Name Owned By State or Other Jurisdiction of Incorporation or Organization Bio-Medical Automation, Inc. Ridgefield Acquisition Corp Nevada

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) x 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 to Commission file number 000-16335 RIDGEFIELD ACQU

Quarterly Report - FORM 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 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 000-16335 RIDGEF

Quarterly Report - FORM 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 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 000-16335 RIDGEFIELD

Quarterly Report - FORM 10-Q

10-Q 1 tm2014576d110q.htm FORM 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, 2020 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commiss

RDGA / Ridgefield Acquisition Corp. 10-K - Annual Report - FORM 10-K

10-K 1 tm205402d110k.htm FORM 10-K 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, 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 fi

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant Legal Name Owned By State or Other Jurisdiction of Incorporation or Organization Ridgefield Acquisition Corp Nevada Bio-Medical Automation, Inc. Ridgefield Acquisition Corp Nevada 1

RDGA / Ridgefield Acquisition Corp. 10-Q - Quarterly Report - FORM 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 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 000-16335 RIDGEF

RDGA / Ridgefield Acquisition Corp. 10-Q - Quarterly Report - FORM 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 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 000-16335 RIDGEFIELD

RDGA / Ridgefield Acquisition Corp. 10-Q Quarterly Report 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 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 00

RDGA / Ridgefield Acquisition Corp. FORM 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 to Commission file number 000-16335 RIDGEFIELD ACQU

RDGA / Ridgefield Acquisition Corp. FORM 10-Q (Quarterly Report)

10-Q 1 tv50520410q.htm 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 September 30, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition per

RDGA / Ridgefield Acquisition Corp. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ý 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 000-16335 RIDGEFIELD

RDGA / Ridgefield Acquisition Corp. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ý 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 000-16335 RIDGEFIELD

RDGA / Ridgefield Acquisition Corp. FORM 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 to . Commission file number 000-16335 RIDGEFIELD AC

Revolving Promissory Note, dated as of December 31, 2016, between the Company and Steven N. Bronson.

EX-10.21 2 tv489106ex10-21.htm EXHIBIT 10.21 Exhibit 10.21 RIDGEFIELD ACQUISITION CORP. REVOLVING PROMISSORY NOTE Principal Amount US$250,000.00 Westlake Village, California December 31, 2016 For value received, pursuant to this Revolving Promissory Note (the "Note"). the undersigned Ridgefield Acquisition Corp. ("Borrower") promises to pay to Steven N. Bronson ("Holder"), or to his order, the agg

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

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 27, 2018 Ridgefield Acquisition Corp. (Exact Name of Registrant as Specified in Charter) Nevada 000-16335 84-0922701 (State or Other Jurisdiction (Commission (IRS Employer of

Letter to the Securities and Exchange Commission from Anton & Chia, LLP dated March 6, 2018, incorporated by reference to Form 8-K reporting an event of February 27, 2018 as Exhibit 16.1.

EX-16.1 2 tv487954ex16-1.htm EXHIBIT 16.1 Exhibit 16.1 March 6, 2018 U.S. Securities and Exchange Commission Office of the Chief Accountant 100 F Street, NE Washington, DC 20549 Re: Ridgefield Acquisition Corp. (File No. 000-16335) Dear Sir or Madam: We have read Item 4.01 of Form 8-K dated March 6, 2018 of Ridgefield Acquisition Corp. (“the Registrant”) and are in agreement with the statements co

RDGA / Ridgefield Acquisition Corp. 15-12G/A

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: 000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of registrant as specifi

RDGA / Ridgefield Acquisition Corp. 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 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of registrant as specifi

RDGA / Ridgefield Acquisition Corp. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2017. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No.000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of regis

RDGA / Ridgefield Acquisition Corp. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2017. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No.000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of registrant

Ridgefield Acquisition FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2017. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No.000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of registran

Ridgefield Acquisition FORM 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-16335 RIDGEFIELD ACQUISITION CORP. (Na

Ridgefield Acquisition 10-Q/A (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q/A (Amendment No. 1) x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2016. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp.

Ridgefield Acquisition FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2016. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of regi

Ridgefield Acquisition FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2016. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

Ridgefield Acquisition FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2016. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

Ridgefield Acquisition NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): ? Form 10-K ? Form 20-F ? Form 11-K x Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: June 30, 2016 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report on Fo

Ridgefield Acquisition 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2016. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registra

Ridgefield Acquisition FORM 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015 ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-16335 RIDGEFIELD ACQUISITION CORP. (Na

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2015. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. — 0-16335 Ridgefield Acquisition Corp. (Exact name of regi

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2015. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

Letter to the Securities and Exchange Commission from Excelsis Accounting Group dated July 1, 2015, incorporated by reference to Form 8-K reporting an event of July 1, 2015 as Exhibit 16.1.

Exhibit 16.1 Letter from Excelsis Accounting Group July 1, 2015 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Dear Sirs: We have received a copy of, and are in agreement with, the statements being made by Ridgefield Acquisition Corp. in Item 4.01 of its Form 8-K dated July 1, 2015, captioned "Changes in Registrant's Certifying Accountant." We hereby consent to the fili

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

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, 2015 Ridgefield Acquisition Corp. (Exact Name of Registrant as Specified in Charter) Nevada 0-16335 84-0922701 (State or other Jurisdiction of Incorporation) (Commission File No.) (I.R.S. E

Letter from Anton & Chia, LLP

Exhibit 16.2 Letter from Anton & Chia, LLP July 1, 2015 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioner: We have read the statements made by Ridgefield Acquisition Corp. in Item 4.01 of its Current Report on Form 8-K dated July 1, 2015. We agree with the statements concerning our firm in such Current Report on Form 8-K. Furthermore, we understand this letter

Dr. Kenneth S. Schwartz 26 Navajo Road Manalapan, NJ 07726

Exhibit 17 Dr. Kenneth S. Schwartz 26 Navajo Road Manalapan, NJ 07726 To: Ridgefield Acquisition Corporation Please accept my resignation from the Board of Directors as of June 18, 2015, for personal reasons. Sincerely, /S/ Dr. Kenneth S. Schwartz

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

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 18, 2015 Ridgefield Acquisition Corp. (Exact Name of Registrant as Specified in Charter) Nevada 0-16335 84-0922701 (State or other Jurisdiction of Incorporation) (Commission File No.) (I.R.S.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2015. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. — 0-16335 Ridgefield Acquisition Corp. (Exact name of registra

Loan Agreement, dated as of March 10, 2015, between the Company and Steven N. Bronson, incorporated by reference to the Annual Report on Form 10-K for the year ended December 31, 2014 as Exhibit 10.20.

Exhibit 10.20 LOAN AGREEMENT This Loan Agreement (the "Agreement"), dated March 10, 2015, is entered into by and between Ridgefield Acquisition Corp., a Nevada corporation, with offices located at 31248 Oak Crest Drive, Suite 110, Westlake Village, CA 91361 ("Borrower") and Steven N. Bronson, having a business address at 31248 Oak Crest Drive, Suite 110, Westlake Village, CA 91361 (the "Lender").

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) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-16335 RIDGEFIELD ACQUISITION CORP. (Na

Ridgefield Acquisition NT 10-K

NT 10-K 1 v406057nt10k.htm NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): x Form 10-K ¨ Form 20-F ¨ Form 11-K ¨ Form 10-Q ¨ Form 10-D ¨ Form N-SAR ¨ Form N-CSR For Period Ended: December 31, 2014 ¨ Transition Report on Form 10-K ¨ Transition Report on Form 20-F ¨ Transition Report on Form 11-K ¨ Transition Report

Other Events

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 1, 2015 Ridgefield Acquisition Corp. (Exact Name of Registrant as Specified in Charter) Nevada 0-16335 84-0922701 (State or other (Commission File No.) (I.R.S. Employer Jurisdiction of Identi

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2014. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of regi

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2014. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2014. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. — 0-16335 Ridgefield Acquisition Corp. (Exact name of registra

Other Events - FORM 8-K

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 1, 2014 Ridgefield Acquisition Corp. (Exact Name of Registrant as Specified in Charter) Nevada 0-16335 84-0922701 (State or other (Commission File No.) (I.R.S. Employer Jurisdiction of Identifi

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) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-16335 RIDGEFIELD ACQUISITION CORP. (Na

Loan Agreement between Steven N. Bronson and Ridgefield Acquisition Corp., dated November 12, 2013, incorporated by reference to the Quarterly Report on Form 10-Q for the quarter ended September 30, 2013 as Exhibit 10.19.

Exhibit 10.19 LOAN AGREEMENT This Loan Agreement (the “Agreement”), dated November 12, 2013, is entered into by and between Ridgefield Acquisition Corp., a Nevada corporation, with offices located at 225 N.E. Mizner Boulevard, Suite 400 Boca Raton, Florida 33432 (“Borrower”) and Steven N. Bronson, having a business address at 225 N.E. Mizner Boulevard, Suite 400 Boca Raton, Florida 33432 (the “Len

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2013. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of regi

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2013. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. — 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2013. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. - 0-16335 Ridgefield Acquisition Corp. (Exact name of registra

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) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-16335 RIDGEFIELD ACQUISITION CORP. (Na

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2012. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of regi

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2012. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2012. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. - 0-16335 Ridgefield Acquisition Corp. (Exact name of registra

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) S ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2011 ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-16335 RIDGEFIELD ACQUISITION CORP. (Na

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2011. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of regi

Ridgefield Acquisition Corp. 225 NE Mizner Boulevard, Suite 400 Boca Raton, Florida 33432 Tel. No. (561) 362-5385

Ridgefield Acquisition Corp. 225 NE Mizner Boulevard, Suite 400 Boca Raton, Florida 33432 Tel. No. (561) 362-5385 September 13, 2011 Tia L. Jenkins Senior Assistant Chief Accountant Office of Beverages, Apparel and Health Care Services U.S. Securities and Exchange Commission Washington, D.C. 20549 Re: Ridgefield Acquisition Corp. - File No. 000-16335 Form 10-Q for Fiscal Quarter Ended June 30, 201

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q Amendment No. 1 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2011. or ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. — 0-16335 Ridgefield Acquisition Corp. (Exact n

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 x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2011. or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT. For the transition period from to Commission File No. ? 0-16335 Ridgefield Acquisition Corp. (Exact name of registran

EX-99

Exhibit 99 Form 3 Joint Filer Information Name: Eugene Oshinsky Address: 5700 White Hickory Circle Tamarac, FL 33319 Designated Filer: RAM Capital Management Trust #01 Issuer & Ticker Symbol: Ridgefield Acquisition Corp.

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* RIDGEFIELD ACQUISITION CORP. - (Name of Issuer) COMMON STOCK (PAR VALUE $.10 PER SHARE) - (Title of Class of Securities) 765816103 - (CUSIP Number) DECEMBER 22, 2005 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de