SCHEDULE 13G/A 0001193125-23-143718 0001617201 XXXXXXXX LIVE 3 Ordinary Shares, $0.00003881 par value per share 12/31/2025 0001735438 MeiraGTx Holdings plc G59665102 655 Third Avenue Suite 1115 New York NY 10017 Rule 13d-1(c) Prosight Management, LP b DE 0.00 3209788.00 0.00 3209788.00 3209788.00 N 4.0 IA The figure in Item 11 is based upon 80,490,889 Ordinary Shares, $0.00003881 par value per share ("Ordinary Shares") of MeiraGTx Holdings plc (the "Issuer") outstanding as of October 28, 2025, as disclosed in the Issuer's quarterly report on Form 10-Q for the quarterly period ended September 30, 2025, filed with the U.S. Securities and Exchange Commission (the "SEC") on November 13, 2025. Prosight Fund, LP b DE 0.00 152317.00 0.00 152317.00 152317.00 N 0.2 PN The figure in Item 11 is based upon 80,490,889 Ordinary Shares of the Issuer outstanding as of October 28, 2025, as disclosed in the Issuer's quarterly report on Form 10-Q for the quarterly period ended September 30, 2025, filed with the SEC on November 13, 2025. Prosight Plus Fund, LP b DE 0.00 700205.00 0.00 700205.00 700205.00 N 0.9 PN The figure in Item 11 is based upon 80,490,889 Ordinary Shares of the Issuer outstanding as of October 28, 2025, as disclosed in the Issuer's quarterly report on Form 10-Q for the quarterly period ended September 30, 2025, filed with the SEC on November 13, 2025. Prosight Partners, LLC b DE 0.00 3209788.00 0.00 3209788.00 3209788.00 N 4.0 OO The figure in Item 11 is based upon 80,490,889 Ordinary Shares of the Issuer outstanding as of October 28, 2025, as disclosed in the Issuer's quarterly report on Form 10-Q for the quarterly period ended September 30, 2025, filed with the SEC on November 13, 2025. W. Lawrence Hawkins b X1 2000.00 3209788.00 2000.00 3209788.00 3211788.00 N 4.0 HC IN The figure in Item 11 is based upon 80,490,889 Ordinary Shares of the Issuer outstanding as of October 28, 2025, as disclosed in the Issuer's quarterly report on Form 10-Q for the quarterly period ended September 30, 2025, filed with the SEC on November 13, 2025. MeiraGTx Holdings plc 655 Third Avenue Suite 1115 New York, NY, 10017 This statement is jointly filed by and on behalf of each of Prosight Management, LP, a Delaware limited partnership ("Prosight Management"), Prosight Fund, LP, a Delaware limited partnership ("Prosight Fund"), Prosight Plus Fund, LP, a Delaware limited partnership ("Prosight Plus Fund"), Prosight Partners, LLC, a Delaware limited liability company ("Prosight Partners"), and W. Lawrence Hawkins (collectively referred herein as the "Reporting Persons"). Prosight Management is the general partner and investment manager of, and may be deemed to indirectly beneficially own securities owned by, Prosight Fund and Prosight Plus Fund. Prosight Management is a sub-advisor for certain separate managed accounts (collectively, the "Managed Accounts") and may be deemed to indirectly beneficially own securities owned by the Managed Accounts. Prosight Partners is the general partner of, and may be deemed to beneficially own, securities beneficially owned by Prosight Management. Mr. Hawkins is the sole manager of, and may be deemed to beneficially own securities beneficially owned by, Prosight Partners. Prosight Fund, Prosight Plus Fund, the Managed Accounts, and Mr. Hawkins are the record and direct beneficial owner of the securities of the Issuer covered by this statement. Prosight Fund disclaims beneficial ownership of the securities of the Issuer held by each of the Managed Accounts, Prosight Plus Fund, and Mr. Hawkins. Prosight Plus Fund disclaims beneficial ownership of the securities of the Issuer held by each of the Managed Accounts, Prosight Fund, and Mr. Hawkins. Mr. Hawkins disclaims beneficial ownership of the securities of the Issuer held by each of the Managed Accounts, Prosight Fund, and Prosight Plus Fund. Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) or 13(g) of the Act or any other purpose, the beneficial owner of any securities covered by this statement. Each Reporting Person may be deemed to be a member of a group with respect to the Issuer or securities of the Issuer for the purpose of Section 13(d) or 13(g) of the Act. Each of the Reporting Persons declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purpose of Section 13(d) or 13(g) of the Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate, or other group for the purpose of acquiring, holding, or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group with respect to the Issuer or any securities of the Issuer. The address of the principal business office of each of the Reporting Persons is c/o Prosight Management, LP, 5956 Sherry Lane, Suite 1365, Dallas, Texas 75225. See Item 4 on the cover page(s) hereto. Y See Item 9 on the cover pages hereto. See Item 11 on the cover pages hereto. See Item 5 on the cover pages hereto. See Item 6 on the cover pages hereto. See Item 7 on the cover pages hereto. See Item 8 on the cover pages hereto. N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Joint Filing Agreement (incorporated herein by reference to Exhibit 99.1 to the Schedule 13G filed on May 15, 2023, by the Reporting Persons with the SEC). Prosight Management, LP Prosight Partners, LLC 02/13/2026 /s/ W. Lawrence Hawkins 02/13/2026 Prosight Fund, LP Prosight Management, LP 02/13/2026 Prosight Partners, LLC 02/13/2026 /s/ W. Lawrence Hawkins 02/13/2026 Prosight Plus Fund, LP Prosight Management, LP 02/13/2026 Prosight Partners, LLC 02/13/2026 /s/ W. Lawrence Hawkins 02/13/2026 Prosight Partners, LLC /s/ W. Lawrence Hawkins 02/13/2026 W. Lawrence Hawkins /s/ W. Lawrence Hawkins 02/13/2026