MeiraGTx Holdings plc

MGTX

Exchange: Nasdaq
Industry: Biological Products, (No Diagnostic Substances)
SEC CIK: 0001735438

SEC filings (opens in a new tab)

In the last 90 days, MeiraGTx Holdings plc insiders filed 0 open-market purchases and 3 sales; 158 institutions reported holding it in 13F filings for Q2 2026, worth $1.07B in total; no superinvestor holds it.

Key figures

Market capClose on Nov 11, 2026: $929.7M
Insider buysOpen market, last 90 days: 0
Insider sellsLast 90 days, $1.71M in total: 3
13F holdersQ2 2026, +26 vs. previous quarter: 158
13F valueReported value at the end of Q2 2026: $1.07B
Superinvestors holdingAt the end of Q2 2026: 0

Price chart

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Financials

See financial statements

From SEC filings, in USD.

Revenue, FY2025: $81.4M; +144.6% year over year
Net income, FY2025: -$114.2M; No comparable prior period
Free cash flow, FY2025: -$50.2M; No comparable prior period
Revenue, Q2 FY2026: $321.4M; +8,608.6% year over year

Revenue flow, FY2025

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Net loss for FY2025: $114.2M (140.3% of revenue).

Short interest

See short data

From FINRA, settlement date Oct 30, 2026.

Short interest: 6.64M; Shares sold short
Change: +202.5K; +3.2% vs. previous
Days to cover: 10.80; At average daily volume

Superinvestors holding MGTX, Q2 2026

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No superinvestor reported holding MGTX at the end of Q2 2026.

Latest insider trades

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Open-market purchases and sales by MeiraGTx Holdings plc insiders from Form 4, newest first.

Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change	Flags
Oct 20, 2026 (view filing)8:57 PM ET	Oct 20	Same day	Giroux RichardCFO & COO	SSale	−56.0K	$9.95	−$557.2K	−6.2%852.5K after	10b5-1
Oct 6, 2026 (view filing)8:53 PM ET	Oct 6	Same day	Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY	SSale	−27.7K	$10.64	−$294.3K	−4.3%613.2K after	10b5-1
Aug 18, 2026 (view filing)9:03 PM ET	Aug 18	Same day	Forbes AlexandriaPRESIDENT & CEO	SSale	−62.0K	$13.86	−$859.3K	−4.5%1.33M after	10b5-1
Jul 21, 2026 (view filing)9:12 PM ET	Jul 21	Same day	Giroux RichardCFO & COO	SSale	−56.0K	$12.51	−$700.6K	−5.8%908.5K after	10b5-1
Jul 7, 2026 (view filing)9:05 PM ET	Jul 7	Same day	Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY	SSale	−27.7K	$14.80	−$409.5K	−4.1%640.8K after	2 lots10b5-1
May 19, 2026 (view filing)	May 19	Same day	Forbes AlexandriaPRESIDENT & CEO	SSale	−62.0K	$9.17	−$568.5K	−4.3%1.39M after	10b5-1
Apr 21, 2026 (view filing)	Apr 21	Same day	Giroux RichardCFO & COO	SSale	−56.0K	$10.22	−$572.3K	−5.4%971.5K after	10b5-1
Apr 7, 2026 (view filing)	Apr 7	Same day	Naylor StuartCHIEF DEV. OFFICER	SSale	−27.7K	$9.36	−$258.9K	−4.0%668.5K after	10b5-1
Mar 24, 2026 (view filing)	Mar 24	Same day	Forbes AlexandriaPRESIDENT & CEO	SSale	−62.0K	$7.41	−$459.4K	−4.1%1.45M after	10b5-1
Oct 21, 2025 (view filing)	Oct 21	Same day	Giroux RichardCFO & COO	SSale	−24.0K	$8.87	−$212.9K	−2.8%829.5K after	10b5-1

Top 10 13F holders, Q2 2026

See all 158 holders

The largest institutional positions in MeiraGTx Holdings plc at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding MGTX in Q2 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Sanofi	12,197,737	$164.8M	30.86%	00.0%	Unchanged
Perceptive Advisors LLC	10,786,658	$145.7M	2.26%	+460,555+4.5%	Added
Rubric Capital Management LP	9,100,000	$122.9M	1.13%	+2,100,000+30.0%	Added
Johnson & Johnson	6,641,064	$89.7M	11.23%	00.0%	Unchanged
BlackRock, Inc.	4,757,178	$64.3M	0.00%	+1,589,030+50.2%	Added
Adage Capital Partners GP, L.L.C.	4,400,000	$59.4M	0.08%	+400,000+10.0%	Added
Opaleye Management Inc.	3,550,000	$48.0M	4.34%	+1,426,741+67.2%	Added
Millennium Management LLC	2,971,752	$40.1M	0.03%	−493,947−14.3%	Reduced
683 Capital Management, LLC	2,300,000	$31.1M	2.86%	−150,000−6.1%	Reduced
Woodline Partners LP	1,500,135	$20.3M	0.06%	+1,199,812+399.5%	Added

Holders of 5% or more of MGTX

See all 3 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of MeiraGTx Holdings plc.

Largest holders of MGTX from 13D and 13G filings
Holder	Latest form	Stake	Change	First filed	Latest filing	Filing
Perceptive Advisors LLC	13D/A	12.60%11.7M shares	−0.30 ppfrom 12.90%	May 16, 20235 filings	Apr 24, 2026	SEC
Rubric Capital Management LP	13G/A	9.83%9.10M shares	+1.93 ppfrom 7.90%	Feb 13, 20262 filings	Aug 14, 2026	SEC
Adena Estate Inc.	13G	5.10%3.27M shares	New	Feb 9, 20241 filing	Feb 9, 2024	SEC