MeiraGTx Holdings
MGTX
123 hedge funds and large institutions have $528M invested in MeiraGTx Holdings in 2025 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 29 increasing their positions, 39 reducing their positions, and 13 closing their positions.
85% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 13
26% more capital invested
Capital invested by funds: $420M → $528M (+$108M)
21% more call options, than puts
Call options by funds: $751K | Put options by funds: $622K
10% more funds holding
Funds holding: 112 → 123 (+11)
0% more funds holding in top 10
Funds holding in top 10: 5 → 5 (0)
0.28% less ownership
Funds ownership: 79.98% → 79.7% (-0.28%)
26% less repeat investments, than reductions
Existing positions increased: 29 | Existing positions reduced: 39
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$14M |
| 2 |
Morgan Stanley
New York
|
+$6.23M |
| 3 |
WP
Woodline Partners
San Francisco,
California
|
+$1.58M |
| 4 |
D.E. Shaw & Co
New York
|
+$1.37M |
| 5 |
Goldman Sachs
New York
|
+$899K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Adage Capital Partners
Boston,
Massachusetts
|
-$14.6M |
| 2 |
PM
Prosight Management
Dallas,
Texas
|
-$3.94M |
| 3 |
JGC
J. Goldman & Co
New York
|
-$1.93M |
| 4 |
RA
Royce & Associates
New York
|
-$1.42M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
-$977K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
126
Balyasny Asset Management
Chicago,
Illinois
| – | -$919K | -140,903 | Closed |
|
|
RAM
127
Readystate Asset Management
Chicago,
Illinois
| – | -$870K | -133,401 | Closed |
|
|
HF
128
HRT Financial
New York
| – | -$668K | -102,575 | Closed |
|
129
Squarepoint
New York
| – | -$165K | -25,280 | Closed |
|
|
IC
130
IEQ Capital
Foster City,
California
| – | -$140K | -21,418 | Closed |
|
|
PW
131
PUREfi Wealth
Boston,
Massachusetts
| – | -$130K | -20,000 | Closed |
|
132
VOYA Investment Management
Atlanta,
Georgia
| – | -$82.2K | -12,609 | Closed |
|
133
ProShare Advisors
Bethesda,
Maryland
| – | -$75.3K | -11,546 | Closed |
|
134
Simplex Trading
Chicago,
Illinois
| – | -$23.8K | -3,005 | Closed |
|
135
Raymond James Financial
St Petersburg,
Florida
| – | -$11.4K | -1,750 | Closed |
|
136
US Bancorp
Minneapolis,
Minnesota
| – | -$248 | -38 | Closed |
|
MGTX Hedge Fund Activity: Q3 2025 in Review
123 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in MeiraGTx Holdings (MGTX) for Q3 2025, worth a combined $528M — up 26% from $420M a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new MGTX positions and 13 closed out — a net gain of 11 holders — while 29 added to existing stakes and 39 trimmed.
The largest buyer was Millennium Management, adding an estimated $14M. The largest seller was Adage Capital Partners, cutting an estimated $14.6M.
- 123 institutional investors held MeiraGTx Holdings (MGTX) as of Q3 2025, up from 112 in Q2 2025.
- Funds reported $528M of MeiraGTx Holdings stock for Q3 2025, up 26% quarter-over-quarter.
- 24 funds opened new MeiraGTx Holdings positions in Q3 2025 and 13 closed out, a net change of +11 holders.
- The largest MeiraGTx Holdings buyer in Q3 2025 was Millennium Management, an estimated $14M added.
- The largest MeiraGTx Holdings seller in Q3 2025 was Adage Capital Partners, an estimated $14.6M sold.
Based on aggregated 13F filings for Q3 2025.