MeiraGTx Holdings MGTX Institutional Ownership

NASDAQ MGTX

$10.66 -0.34 (-3.09%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

159 Institutions

Increased 120 75.5%

Unchanged 17 10.7%

Reduced 22 13.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

86.75%

▲+6.24 pp QoQ

Shares Held by Institutions

79.31Mn

of 91.42Mn outstanding

▲+24.78% QoQ

Shares Outstanding

91.42Mn

12.11Mn held outside 13F filers

Institutional Investors

159

filed 13F for Jun 2026

▲+27 vs prior quarter

Net Shares Added (QoQ)

+15.75Mn

accumulated since last quarter

Value of Holdings

$872.39Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

MeiraGTx Holdings plc (NASDAQ:MGTX) is held by 159 institutional investors per 13F filings through June 2026.

Collectively, these holders controlled 86.8% of MeiraGTx Holdings's outstanding shares in June 2026, up from 80.5% in March 2026.
They increased total shares held in MeiraGTx Holdings by 24.78% from last quarter, and the number of investors in MGTX increased 45.87% annually.
Of these 159 funds, 120 grew their exposure to MeiraGTx Holdings, 22 cut back, and 17 maintained positions.
Institutional investors collectively held 79.31Mn shares in MeiraGTx Holdings as of June 2026, up by 15.75Mn shares quarter on quarter, and up 15.75Mn shares year over year.
As of June 30, 2026, Sanofi held the largest stake in MeiraGTx Holdings with 12.2Mn shares, accounting for 13.34% of total shares outstanding.
The largest buyers of MeiraGTx Holdings for the quarter ending June 2026 were Rubric Capital Management LP (2.1Mn), BlackRock, Inc. (1.59Mn), Opaleye Management Inc. (1.43Mn), Woodline Partners LP (1.2Mn), JACOBS LEVY EQUITY MANAGEMENT, INC (1.0Mn).
The largest sellers of MeiraGTx Holdings for the quarter ending June 2026 were MILLENNIUM MANAGEMENT LLC (493.95K), Morgan Stanley (277.24K), 683 Capital Management, LLC (150.0K), UBS Group AG (118.62K), Goldman Sachs Group Inc (114.0K).
MeiraGTx Holdings's 10 largest shareholders as of June 2026 include Sanofi (12.2Mn), PERCEPTIVE ADVISORS LLC (10.79Mn), Rubric Capital Management LP (9.1Mn), Johnson & Johnson (6.64Mn), BlackRock, Inc. (4.76Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (4.4Mn), Opaleye Management Inc. (3.55Mn), MILLENNIUM MANAGEMENT LLC (2.97Mn), 683 Capital Management, LLC (2.3Mn), Woodline Partners LP (1.5Mn) per Business Quant data.

Form 13F Holdings

158 Institutional Holders

Report period 30 Jun, 2026

Total shares held 79.31Mn

Of outstanding 86.75%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Sanofi	0001121404	12,197,737	13.34%	0	0.00%	$164.79Mn
2	PERCEPTIVE ADVISORS LLC	0001224962	10,786,658	11.80%	▲460,555	+4.46%	$145.73Mn
3	Rubric Capital Management LP	0001687509	9,100,000	9.95%	▲2,100,000	+30.00%	$122.94Mn
4	Johnson & Johnson	0000200406	6,641,064	7.26%	0	0.00%	$89.72Mn
5	BlackRock, Inc.	0002012383	4,757,178	5.20%	▲1,589,030	+50.16%	$64.27Mn
6	ADAGE CAPITAL PARTNERS GP, L.L.C.	0001165408	4,400,000	4.81%	▲400,000	+10.00%	$59.44Mn
7	Opaleye Management Inc.	0001595855	3,550,000	3.88%	▲1,426,741	+67.20%	$47.96Mn
8	MILLENNIUM MANAGEMENT LLC	0001273087	2,971,752	3.25%	▼493,947	-14.25%	$40.15Mn
9	683 Capital Management, LLC	0001404574	2,300,000	2.52%	▼150,000	-6.12%	$31.07Mn
10	Woodline Partners LP	0001784547	1,500,135	1.64%	▲1,199,812	+399.51%	$20.27Mn
11	State Street Corp	0000093751	1,393,222	1.52%	▲639,844	+84.93%	$18.82Mn
12	Morgan Stanley	0000895421	1,312,703	1.44%	▼277,237	-17.44%	$17.73Mn
13	Knoll Capital Management, LLC	0001325083	1,250,000	1.37%	0	0.00%	$16.89Mn
14	KENNEDY CAPITAL MANAGEMENT LLC	0000884589	1,105,421	1.21%	▲247,042	+28.78%	$14.93Mn
15	Long Focus Capital Management, LLC	0001602716	1,080,300	1.18%	▲555,555	+105.87%	$14.59Mn
16	JACOBS LEVY EQUITY MANAGEMENT, INC	0000884414	1,015,106	1.11%	▲1,001,433	+7,324.16%	$13.71Mn
17	D. E. Shaw & Co., Inc.	0001009207	852,902	0.93%	▲427,621	+100.55%	$11.52Mn
18	HEIGHTS CAPITAL MANAGEMENT, INC	0001081698	850,000	0.93%	▲850,000	0.00%	$11.48Mn
19	GEODE CAPITAL MANAGEMENT, LLC	0001214717	849,082	0.93%	▲264,183	+45.17%	$11.47Mn
20	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	723,563	0.79%	▲326,282	+82.13%	$9.78Mn

Showing 1 to 20 of 158 holders