Investor Onex Corp
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Onex Corp . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2025-03-31 13D/A EEX / Emerald Holding, Inc. 184,520,200
2024-10-22 13D/A 1,936,854
2024-10-10 13G/A PWSC / PowerSchool Holdings, Inc. 71,118,123 0
2024-03-14 13D/A RYAN / Ryan Specialty Holdings, Inc. 4,145,621 4,145,621
2024-02-15 13D/A EEX / Emerald Holding, Inc. 228,572,000
2024-02-13 13G/A PWSC / PowerSchool Holdings, Inc. 75,413,862 71,118,123
2024-01-25 13D 696,830
2024-01-12 13G/A CLS / Celestica Inc. 18,997,238 0
2024-01-02 13D/A EEX / Emerald Holding, Inc. 157,974,794 228,572,000
2023-06-26 13D ATIP / ATI Physical Therapy, Inc. 758,040
2023-05-24 13D/A RYAN / Ryan Specialty Holdings, Inc. 12,455,712 4,145,621
2022-02-10 13G/A CLVT / Clarivate Plc 71,418,266 42,855,384
2022-02-08 13G PWSC / PowerSchool Holdings, Inc. 75,413,862
2022-01-27 13G/A JELD / JELD-WEN Holding, Inc. 32,883,094 0
2022-01-26 13G/A XAG3643LAB99 / FLY FUNDING II SARL 2020 TERM LOAN B 0
2021-08-02 13D RYAN / Ryan Specialty Holdings, Inc. 12,455,712
2021-02-02 13G/A CLVT / Clarivate Plc 92,240,031 71,418,266
2020-08-17 13D/A EEX / Emerald Holding, Inc. 121,923,860 157,974,794
2020-07-09 13D EEX / Emerald Holding, Inc. 121,923,860
2020-02-14 13G/A EEX / Emerald Holding, Inc. 47,058,332 47,058,332
2020-02-13 13G/A US34407D1090 / Fly Leasing Ltd. 3,110,143 3,110,143
2020-02-13 13G JELD / JELD-WEN Holding, Inc. 32,883,094 32,883,094
2020-02-10 13G CLVT / Clarivate Plc 92,240,031
2019-02-15 13G/A US34407D1090 / Fly Leasing Ltd. 3,110,143 3,110,143
2019-02-14 13G/A US34407D1090 / Fly Leasing Ltd. 3,110,143
2019-02-14 13G/A EEX / Emerald Holding, Inc. 53,808,332 47,058,332
2018-02-28 13G/A CLS / Celestica Inc. 18,998,012 18,997,238
2018-02-14 13G JELD / JELD-WEN Holding, Inc. 32,883,094
2018-02-13 13G/A CLS / Celestica Inc. 19,372,540 18,998,012
2018-02-13 13G EEX / Emerald Holding, Inc. 53,808,332
2018-02-13 13G/A US34407D1090 / Fly Leasing Ltd. 2,443,476
2017-08-25 13D/A GENN / Genesis Healthcare, Inc. 11,757,791 0
2017-07-27 13D/A GENN / Genesis Healthcare, Inc. 12,811,791 11,757,791
2017-07-13 13D/A GENN / Genesis Healthcare, Inc. 14,457,136 12,811,791
2017-05-25 13D/A GENN / Genesis Healthcare, Inc. 14,457,136
2017-04-03 13G/A US34407D1090 / Fly Leasing Ltd. 2,443,476
2017-01-27 13G/A CLS / Celestica Inc. 19,372,540 19,372,540
2016-02-16 13G/A CLS / Celestica Inc. 19,476,775 19,372,540
2015-07-23 13G/A CLS / Celestica Inc. 19,476,775
2015-02-13 13G/A SPR / Spirit AeroSystems Holdings, Inc. 0
2015-02-12 13G/A ALSN / Allison Transmission Holdings, Inc. 0
2015-02-11 13D/A GENN / Genesis Healthcare, Inc. 14,750,623
2014-02-14 13G/A ALSN / Allison Transmission Holdings, Inc. 49,696,249
2013-02-14 13G ALSN / Allison Transmission Holdings, Inc. 75,348,749
2013-01-09 13G US34407D1090 / Fly Leasing Ltd. 1,752,848
2012-09-24 13D GENN / Genesis Healthcare, Inc. 14,750,623
2012-02-13 13G TMS / Tms International Corp. 23,446,929
2012-02-13 13G/A SPR / Spirit AeroSystems Holdings, Inc. 22,411,638