As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of MeiraGTx Holdings plc. The largest reported stake is Perceptive Advisors LLC's, at 12.6%. 7 filings are on record since November 13, 2025 (Schedule 13D/A, April 24, 2026).
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Key facts
- · Reporting person: Rubric Capital Management LP · Sole voting: 0 · Shared voting: 9,100,000 · Sole dispositive: 0 · Shared dispositive: 9,100,000 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: Adage Capital Management, L.P. · Sole voting: 0 · Shared voting: 4,000,000 · Sole dispositive: 0 · Shared dispositive: 4,000,000 · SCHEDULE 13G/A, 2026-05-13
- · Reporting person: Perceptive Advisors LLC · Sole voting: 0 · Shared voting: 11,742,117 · Sole dispositive: 0 · Shared dispositive: 11,742,117 · SCHEDULE 13D/A, 2026-04-24
- · Holder: Rubric Capital Management LP · Percent: 7.9% · SCHEDULE 13G
- · Holder: Prosight Management, LP · Percent: 4% · SCHEDULE 13G/A
MeiraGTx Holdings plc has 7 Schedule 13D or 13G filings on record since 2025-11-13. 2 holders' latest filing reports 5% or more of ordinary shares, $0.00003881 par value per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Perceptive Advisors LLC | 12.6% | 11,742,117 | SCHEDULE 13D/A, 2026-04-24 | 2026-04-17 |
| Rubric Capital Management LP | 9.83% | 9,100,000 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Adage Capital Management, L.P. | 4.91% | 4,000,000 | SCHEDULE 13G/A, 2026-05-13 | 2026-03-31 |
| Prosight Management, LP | 4% | 3,209,788 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
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More on MeiraGTx Holdings plc and the records around it.
MeiraGTx Holdings plc elsewhere on the record
- Leadership changes Sep 2026
- Who owns it
Companies that share a holder
- Prosight Management, LP also filed stake reports on 5 other companies: OnKure Therapeutics, Inc. (Aug 2026), ADC Therapeutics SA (Feb 2026), Janux Therapeutics, Inc. (Feb 2026)
- Rubric Capital Management LP also filed stake reports on 32 other companies: ARDELYX, INC. (Aug 2026), Enovis Corporation (Aug 2026), Mission Produce, Inc. (Aug 2026)
- Perceptive Advisors LLC also filed stake reports on 57 other companies: Nautilus Biotechnology, Inc. (Nov 2026), Athira Pharma, Inc. (Oct 2026), IRulya Therapeutics Inc. (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Perceptive Advisors LLC | 0 | 11,742,117 | 0 | 11,742,117 | SCHEDULE 13D/A, 2026-04-24 |
| Joseph Edelman | 0 | 11,742,117 | 0 | 11,742,117 | SCHEDULE 13D/A, 2026-04-24 |
| Perceptive Life Sciences Master Fund, Ltd. | 0 | 11,742,117 | 0 | 11,742,117 | SCHEDULE 13D/A, 2026-04-24 |
| Rubric Capital Management LP | 0 | 9,100,000 | 0 | 9,100,000 | SCHEDULE 13G/A, 2026-08-14 |
| David Rosen | 0 | 9,100,000 | 0 | 9,100,000 | SCHEDULE 13G/A, 2026-08-14 |
| Adage Capital Management, L.P. | 0 | 4,000,000 | 0 | 4,000,000 | SCHEDULE 13G/A, 2026-05-13 |
| Robert Atchinson | 0 | 4,000,000 | 0 | 4,000,000 | SCHEDULE 13G/A, 2026-05-13 |
| Phillip Gross | 0 | 4,000,000 | 0 | 4,000,000 | SCHEDULE 13G/A, 2026-05-13 |
The latest filing identifies MeiraGTx Holdings plc by CUSIP G59665102 and gives its principal executive office as 655 Third Avenue, Suite 1115, New York, NY 10017 (SCHEDULE 13G/A, 2026-08-14).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-13 | Adage Capital Management, L.P. | 5.2% | SCHEDULE 13G/A |
| 2026-01-02 | Perceptive Advisors LLC | 12.9% | SCHEDULE 13D/A |
| 2026-02-13 | Rubric Capital Management LP | 7.9% | SCHEDULE 13G |
| 2026-02-13 | Prosight Management, LP | 4% | SCHEDULE 13G/A |
| 2026-04-24 | Perceptive Advisors LLC | 12.6% | SCHEDULE 13D/A |
| 2026-05-13 | Adage Capital Management, L.P. | 4.91% | SCHEDULE 13G/A |
| 2026-08-14 | Rubric Capital Management LP | 9.83% | SCHEDULE 13G/A |
Questions about who owns MeiraGTx Holdings plc
Who owns MeiraGTx Holdings plc?
On this page, 2 holders' latest ownership filings report 5% or more of MeiraGTx Holdings plc: Perceptive Advisors LLC (12.6%, Schedule 13D/A, filed 2026-04-24) and Rubric Capital Management LP (9.83%, Schedule 13G/A, filed 2026-08-14).
Who are the largest shareholders of MeiraGTx Holdings plc?
By the share each holder's latest filing reports, the largest holders of MeiraGTx Holdings plc on this page are Perceptive Advisors LLC (12.6%) and Rubric Capital Management LP (9.83%).
When did Perceptive Advisors LLC buy into MeiraGTx Holdings plc?
The filings give report dates, not purchase dates. The earliest filing from Perceptive Advisors LLC on this page is the Schedule 13D/A, filed 2026-01-02, reporting 12.9%; its latest, Schedule 13D/A filed 2026-04-24, reports 12.6%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for MeiraGTx Holdings plc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 23, 2026 | Leadership change: Alan M. Sebulsky appointed | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.