MeiraGTx Ownership | Who Owns MeiraGTx?

Overview Forecast RevenueFinancials Chart

MeiraGTx Ownership Summary

MeiraGTx is owned by 97.47% institutional investors, 16.45% insiders. Sanofi is the largest institutional shareholder, holding 15.00% of MGTX shares. iShares Russell 2000 ETF is the top mutual fund, with 1.64% of its assets in MeiraGTx shares.

MGTX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	MeiraGTx	97.47%	16.45%	-13.92%
Sector	Healthcare Stocks	244.59%	12.11%	-156.70%
Industry	Biotech Stocks	379.61%	11.70%	-291.31%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Sanofi	12.20M	15.00%	$164.79M
Perceptive advisors	10.79M	13.27%	$145.73M
Rubric capital management lp	9.10M	11.19%	$122.94M
Johnson & johnson	6.64M	8.17%	$89.72M
Blackrock funding, inc. /de	4.76M	5.85%	$64.27M
Adage capital partners gp	4.40M	5.41%	$59.44M
Opaleye management	3.55M	4.37%	$47.96M
Blackrock	2.52M	3.94%	$10.62M
Millennium management	2.97M	3.66%	$40.15M
683 capital management	2.30M	2.83%	$31.07M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Sanofi	12.20M	30.86%	$164.79M
Johnson & johnson	6.64M	11.23%	$89.72M
Knoll capital management	1.25M	9.42%	$16.89M
Opaleye management	3.55M	4.34%	$47.96M
Heights capital management	850.00K	2.65%	$11.48M
Perceptive advisors	10.79M	2.19%	$145.73M
683 capital management	2.30M	1.53%	$31.07M
Rubric capital management lp	9.10M	1.13%	$122.94M
Amh equity	80.00K	0.82%	$658.40K
Alphacentric advisors	54.47K	0.62%	$735.88K

Top Buyers

Holder	Shares	% Assets	Change
Rubric capital management lp	9.10M	1.13%	2.10M
Blackrock funding, inc. /de	4.76M	0.00%	1.59M
Opaleye management	3.55M	4.34%	1.43M
Woodline partners lp	1.50M	0.06%	1.20M
Jacobs levy equity management	1.02M	0.05%	1.00M

Top Sellers

Holder	Shares	% Assets	Change
Prosight management, lp	90.00K	0.21%	-2.54M
Logos global management lp	-	-	-700.00K
22nw, lp	-	-	-586.52K
Millennium management	2.97M	0.01%	-493.95K
Monashee investment management	-	-	-450.49K

New Positions

Holder	Shares	% Assets	Change	Value
Heights capital management	850.00K	2.65%	850.00K	$11.48M
Pfm health sciences, lp	455.29K	0.53%	455.29K	$6.15M
Panagora asset management	350.17K	0.01%	350.17K	$4.73M
Ghisallo capital management	200.00K	0.05%	200.00K	$2.70M
Sixth street partners management company	142.43K	0.00%	142.43K	$1.92M

Sold Out

Holder	Change
Mai capital management	-3.00
Nelson, van denburg & campbell wealth management group	-5.00
Root financial partners	-33.00
Founders capital management	-50.00
Financial consulate	-70.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	158	17.04%	79,244,362	17.59%	97	1.42%	118	71.01%	23	-41.03%
Mar 31, 2026	132	1.54%	67,141,158	3.01%	82	1.28%	68	4.62%	37	12.12%
Dec 31, 2025	30	-76.19%	1,493,700	-97.67%	1	0.03%	13	-75.47%	9	-77.50%
Sep 30, 2025	36	-68.42%	13,541,090	-78.93%	16	0.25%	15	-70.00%	10	-75.00%
Jun 30, 2025	113	-6.61%	64,259,162	7.12%	81	1.41%	49	-23.44%	40	14.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Russell 2000 ETF	1.52M	1.64%	-27.07K
iShares Biotechnology ETF	517.14K	0.56%	-1.57K
Fidelity Small Cap Index	453.08K	0.49%	6.94K
Kennedy Micro Cap	436.84K	0.47%	-61.27K
iShares Russell 2000 Growth ETF	436.26K	0.47%	-4.00K
Janus Henderson Small Cap Gr Alpha ETF	434.67K	0.47%	-
Russell 2000 Equity Index Fund B	397.87K	0.43%	119.85K
Russell 2000 Index Non-Lendable Fund	397.87K	0.43%	119.85K
State St Russell Sm/Mid Cp® Indx SL Cl I	352.79K	0.37%	-
Invesco Dorsey Wright SmallCap Momt ETF	298.82K	0.37%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 18, 2026	Forbes Alexandria	PRESIDENT & CEO	Sell	$859.32K
Jul 21, 2026	Giroux Richard	CFO & COO	Sell	$700.56K
Jul 07, 2026	Naylor Stuart	CHIEF SCI OFCR, OPHTHALMOLOGY	Sell	$35.30K
Jul 07, 2026	Naylor Stuart	CHIEF SCI OFCR, OPHTHALMOLOGY	Sell	$374.17K
May 19, 2026	Forbes Alexandria	PRESIDENT & CEO	Sell	$568.54K

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	-	4
2026 Q2	-	3
2026 Q1	-	1
2025 Q4	-	2
2025 Q3	-	2

MGTX Ownership FAQ

Who Owns MeiraGTx?

MeiraGTx shareholders are primarily institutional investors at 97.47%, followed by 16.45% insiders and -13.92% retail investors. The average institutional ownership in MeiraGTx's industry, Biotech Stocks , is 379.61%, which MeiraGTx falls below.

Who owns the most shares of MeiraGTx?

MeiraGTx’s largest shareholders are Sanofi (12.2M shares, 15.00%), Perceptive advisors (10.79M shares, 13.27%), and Rubric capital management lp (9.1M shares, 11.19%). Together, they hold 39.46% of MeiraGTx’s total shares outstanding.

Does Blackrock own MeiraGTx?

Yes, BlackRock owns 3.94% of MeiraGTx, totaling 2.52M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 10.62M$. In the last quarter, BlackRock increased its holdings by 335.24K shares, a 15.32% change.

Who is MeiraGTx’s biggest shareholder by percentage of total assets invested?

Sanofi is MeiraGTx’s biggest shareholder by percentage of total assets invested, with 30.86% of its assets in 12.2M MeiraGTx shares, valued at 164.79M$.

Who is the top mutual fund holder of MeiraGTx shares?

iShares Russell 2000 ETF is the top mutual fund holder of MeiraGTx shares, with 1.64% of its total shares outstanding invested in 1.52M MeiraGTx shares.

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