Security key
G59665102
MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share (MGTX)
CUSIP: G59665102
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Ordinary Shares, $0.00003881 par value per share
- Total 13F shares
- 65,182,421
- Total 13F value
- $518,195,876
- Share change
- +966,247
- SEC-reported price per share
- $7.95
- Number of holders
- 130
- Value change
- +$7,589,640
- Number of buys
- 60
- Number of sells
- 46
- Shares outstanding
- 92,573,754
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
130
Top holders
10
MGTX full security history
Ownership snapshot
Full 13F holder table
MeiraGTx Holdings plc SEC filings
MeiraGTx Holdings plc company facts
Broader feeds
Ownership snapshot
Top reported holders of MGTX - MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Prosight Management, LP
Disclosed value leader
PERCEPTIVE ADVISORS LLC
Comparable rows
15/15
Latest evidence
30 Sep 2025
13F
13D/G
3/4/5
Lead comparable stake: 4%
13D/G row: Prosight Management, LP
Showing 1-6 of 15 holder rows.
Quick read
Prosight Management, LP leads the comparable SEC ownership view at 4%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Prosight Management, LP's linked filing trail.
Comparable ownership
Top 5
Prosight Management, LP
4%
PERCEPTIVE ADVISORS LLC
14%
Sanofi
13%
JOHNSON & JOHNSON
7.2%
ADAGE CAPITAL PARTNERS GP, L.L.C.
4.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Prosight Management, LP |
13F
13D/G
Company · W. Lawrence Hawkins
|
4%
from 13D/G
|
$33,656,659
4,089,509 shares
|
— | 30 Sep 2025 |
| PERCEPTIVE ADVISORS LLC |
13F
Company
|
14%
|
$103,792,540
12,626,103 shares
|
— | 30 Sep 2025 |
| Sanofi |
13F
3/4/5
Company · 10%+ Owner
|
13%
|
$100,387,376
12,197,737 shares
|
— | 30 Sep 2025 |
| JOHNSON & JOHNSON |
13F
3/4/5
Company · 10%+ Owner
|
7.2%
|
$54,655,957
6,641,064 shares
|
— | 30 Sep 2025 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
Company
|
4.5%
|
$34,439,077
4,184,578 shares
|
— | 30 Sep 2025 |
| Rubric Capital Management LP |
13F
Company
|
4%
|
$30,668,692
3,726,451 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
130
Shares
65,182,421
Rows available
130
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
122
Q4 2025 holders
130
Holder diff
8
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|