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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.

New
Increased
Maintained
Reduced
Closed

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

Holders
123
Holders Change
+11
Holders Change %
+9.82%
% of All Funds
1.61%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
24
Increased
29
Reduced
39
Closed
13
Calls
$751K
Puts
$622K
Net Calls
+$129K
Net Calls Change
-$1K

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$14M
2
Morgan Stanley
Morgan Stanley
New York
+$6.23M
3
WP
Woodline Partners
California
+$1.58M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$1.37M
5
Goldman Sachs
Goldman Sachs
New York
+$899K

Top Sellers

Rank Fund Capital Flow
1
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$14.6M
2
PM
Prosight Management
Texas
-$3.94M
3
JGC
J. Goldman & Co
New York
-$1.93M
4
RA
Royce & Associates
New York
-$1.42M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$977K
Name Holding Trade Value Shares
Change 		Change in
Stake
PA
1
Perceptive Advisors
New York
$104M – – –
S
2
Sanofi
France
$100M – – –
JJ
3
Johnson & Johnson
New Jersey
$54.7M – – –
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$34.4M -$14.6M -1,850,000 -31%
PM
5
Prosight Management
Texas
$33.7M -$3.94M -497,914 -11%
RCMNY
6
Rubric Capital Management (New York)
New York
$30.7M – – –
BlackRock
7
BlackRock
New York
$22.8M -$697K -88,136 -3%
6CM
8
683 Capital Management
New York
$21.6M -$514K -65,000 -2%
Millennium Management
9
Millennium Management
New York
$21.1M +$14M +1,775,788 +226%
JGC
10
J. Goldman & Co
New York
$14.8M -$1.93M -243,643 -12%
KCM
11
Knoll Capital Management
Florida
$10.3M – – –
Morgan Stanley
12
Morgan Stanley
New York
$10.2M +$6.23M +787,640 +173%
EAM
13
Erste Asset Management
Austria
$5.86M -$633K -80,000 -10%
State Street
14
State Street
Massachusetts
$5.6M -$9.26K -1,171 -0.2%
2L
15
22NW LP
Washington
$4.83M – – –
Geode Capital Management
16
Geode Capital Management
Massachusetts
$4.57M -$17.8K -2,256 -0.4%
LFCM
17
Long Focus Capital Management
Puerto Rico
$4.32M – – –
Vanguard Group
18
Vanguard Group
Pennsylvania
$3.82M +$342K +43,261 +10%
Royal Bank of Canada
19
Royal Bank of Canada
Ontario, Canada
$2.47M -$27.9K -3,532 -1%
Northern Trust
20
Northern Trust
Illinois
$2.23M -$24.1K -3,042 -1%
Goldman Sachs
21
Goldman Sachs
New York
$2.14M +$899K +113,706 +78%
Citadel Advisors
22
Citadel Advisors
Florida
$1.69M +$25.7K +3,255 +2%
WP
23
Woodline Partners
California
$1.65M +$1.58M +200,323 New
Bank of America
24
Bank of America
North Carolina
$1.63M -$541K -68,460 -26%
D.E. Shaw & Co
25
D.E. Shaw & Co
New York
$1.43M +$1.37M +173,202 New
1
2 3 4 5

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.