MeiraGTx Holdings MGTX Institutional Ownership

NASDAQ MGTX

$13.82 -0.15 (-1.04%)

As of: Sep 4, 2026 · 3:17 PM EDT

Institutions by Trading Activity

157 Institutions

Increased 120 76.4%

Unchanged 15 9.6%

Reduced 22 14.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

86.73%

▲+6.21 pp QoQ

Shares Held by Institutions

79.28Mn

of 91.42Mn outstanding

▲+24.79% QoQ

Shares Outstanding

91.42Mn

12.13Mn held outside 13F filers

Institutional Investors

157

filed 13F for Jun 2026

▲+25 vs prior quarter

Net Shares Added (QoQ)

+15.75Mn

accumulated since last quarter

Value of Holdings

$1.11Bn

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) has 157 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 86.7% of outstanding stock in June 2026, up from 80.5% the prior quarter.
Their total shares held in MGTX increased 24.79% quarter over quarter, and separately, investors owning MeiraGTx Holdings increased 44.04% from a year ago.
Activity in MGTX broke down as 120 buyers, 22 sellers, and 15 unchanged among 157 total holders.
The aggregate institutional position in MeiraGTx Holdings amounted to 79.28Mn shares as of June 2026, up by 15.75Mn shares quarter on quarter, and up 15.17Mn shares year over year.
Sanofi holds the largest position in MGTX at 12.2Mn shares as of June 30, 2026, or 13.34% of shares outstanding.
The biggest buyers of MeiraGTx Holdings for the quarter ending June 2026 included 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 sales of MGTX for the quarter ending June 2026 came from 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).
Business Quant data shows the 10 biggest positions in MeiraGTx Holdings as of June 2026 are held by 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).

Form 13F Holdings

157 Institutional Holders

Report period 30 Jun, 2026

Total shares held 79.28Mn

Of outstanding 86.73%

#	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 157 holders