MeiraGTx Holdings MGTX Institutional Ownership

NASDAQ MGTX

$9.77 -0.09 (-0.91%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

158 Institutions

Increased 119 75.3%

Unchanged 17 10.8%

Reduced 22 13.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

84.05%

▲+4.54 pp QoQ

Shares Held by Institutions

79.17Mn

of 94.19Mn outstanding

▲+22.25% QoQ

Shares Outstanding

94.19Mn

15.02Mn held outside 13F filers

Institutional Investors

158

filed 13F for Jun 2026

▲+26 vs prior quarter

Net Shares Added (QoQ)

+14.41Mn

accumulated since last quarter

Value of Holdings

$773.45Mn

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

Updated Oct 11, 2026

MeiraGTx Holdings plc (NASDAQ:MGTX) counted 158 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

These investors held 84.05% of MeiraGTx Holdings' outstanding shares at the end of Q2 2026, up from 79.51% in Q1 2026.
Total shares held in MeiraGTx Holdings rose 22.25% from Q1 2026, while the number of holders rose 46.30% from Q2 2025.
Of the 158 holders of MGTX in Q2 2026, 119 added to their positions, 22 reduced their stakes and 17 left their positions unchanged.
Altogether, institutional holders owned 79.17Mn MGTX shares at the end of Q2 2026, up 14.41Mn from the prior quarter and up 15.61Mn from a year earlier.
Sanofi was the top holder of MeiraGTx Holdings as of June 30, 2026, with 12.2Mn shares, or 12.95% of shares outstanding.
Among holders that already owned MeiraGTx Holdings, the biggest buyers in Q2 2026 were Rubric Capital Management LP (+2.1Mn shares), BlackRock, Inc. (+1.59Mn shares), Opaleye Management Inc. (+1.43Mn shares), Woodline Partners LP (+1.2Mn shares) and Jacobs Levy Equity Management, Inc (+1Mn shares).
Among holders that kept a stake in MeiraGTx Holdings, the biggest sellers in Q2 2026 were Millennium Management LLC (-493.95K shares), Morgan Stanley (-277.24K shares), 683 Capital Management, LLC (-150K shares), UBS Group AG (-118.62K shares) and Goldman Sachs Group Inc (-114K shares).
According to Business Quant data, the leading holders of MGTX for Q2 2026 were Sanofi (12.2Mn shares), Perceptive Advisors LLC (10.79Mn shares), Rubric Capital Management LP (9.1Mn shares), Johnson & Johnson (6.64Mn shares), BlackRock, Inc. (4.76Mn shares), Adage Capital Partners GP, L.L.C. (4.4Mn shares), Opaleye Management Inc. (3.55Mn shares), Millennium Management LLC (2.97Mn shares), 683 Capital Management, LLC (2.3Mn shares) and Woodline Partners LP (1.5Mn shares).

Form 13F Holdings

158 Institutional Holders

Report period 30 Jun, 2026

Total shares held 79.17Mn

Of outstanding 84.05%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Sanofi	0001121404	12,197,737	12.95%	0	0.00%	$164.79Mn
2	PERCEPTIVE ADVISORS LLC	0001224962	10,786,658	11.45%	▲460,555	+4.46%	$145.73Mn
3	Rubric Capital Management LP	0001687509	9,100,000	9.66%	▲2,100,000	+30.00%	$122.94Mn
4	Johnson & Johnson	0000200406	6,641,064	7.05%	0	0.00%	$89.72Mn
5	BlackRock, Inc.	0002012383	4,757,178	5.05%	▲1,589,030	+50.16%	$64.27Mn
6	ADAGE CAPITAL PARTNERS GP, L.L.C.	0001165408	4,400,000	4.67%	▲400,000	+10.00%	$59.44Mn
7	Opaleye Management Inc.	0001595855	3,550,000	3.77%	▲1,426,741	+67.20%	$47.96Mn
8	MILLENNIUM MANAGEMENT LLC	0001273087	2,971,752	3.16%	▼493,947	-14.25%	$40.15Mn
9	683 Capital Management, LLC	0001404574	2,300,000	2.44%	▼150,000	-6.12%	$31.07Mn
10	Woodline Partners LP	0001784547	1,500,135	1.59%	▲1,199,812	+399.51%	$20.27Mn
11	State Street Corp	0000093751	1,393,222	1.48%	▲639,844	+84.93%	$18.82Mn
12	Morgan Stanley	0000895421	1,312,703	1.39%	▼277,237	-17.44%	$17.73Mn
13	Knoll Capital Management, LLC	0001325083	1,250,000	1.33%	0	0.00%	$16.89Mn
14	KENNEDY CAPITAL MANAGEMENT LLC	0000884589	1,105,421	1.17%	▲247,042	+28.78%	$14.93Mn
15	Long Focus Capital Management, LLC	0001602716	1,080,300	1.15%	▲555,555	+105.87%	$14.59Mn
16	JACOBS LEVY EQUITY MANAGEMENT, INC	0000884414	1,015,106	1.08%	▲1,001,433	+7,324.16%	$13.71Mn
17	D. E. Shaw & Co., Inc.	0001009207	852,902	0.91%	▲427,621	+100.55%	$11.52Mn
18	HEIGHTS CAPITAL MANAGEMENT, INC	0001081698	850,000	0.90%	▲850,000	0.00%	$11.48Mn
19	GEODE CAPITAL MANAGEMENT, LLC	0001214717	849,082	0.90%	▲264,183	+45.17%	$11.47Mn
20	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	723,563	0.77%	▲326,282	+82.13%	$9.78Mn

Showing 1 to 20 of 158 holders