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MeiraGTx Holdings

US · MGTX #3220 by market cap Listed 2018
10.56 -0.26 -2.40%
Live - 5344 symbols - heartbeat 496s ago · 2026-10-08 10:00
Pre-market 10.70 -1.11%
After-hours 10.82 0.00%
Market cap
1.01B
P/B
4.70
EPS
-1.42
Reader sentiment Are you bullish or bearish on MGTX?

Anonymous reader poll. Unscientific, not investment advice.

✦ Quant Ownership Signal how this is computed

Distributing
  • The number of reporting institutions increased by 3 in the most recent period (2026/Q3).
  • Total institutional ownership fell 2.1 percentage points.

Institutional ownership

Held by institutions
83.93% -2.09pp
Institutions
194 +3
As of
2026/Q3 vs. prior period

Ownership vs. money flow

Aligned

Institutions trimmed shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two line up.

Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.

Holder types

Hedge Fund29.94%
VC/PE Fund20.37%
Mutual Fund17.12%
Public Company15.03%
Individual/Insider3.55%
Insurance Company0.80%
Private Company0.41%
Government Pension Fund0.26%
Other12.52%

Top holders as of 2026-06-30

Sanofi 12.70% · 12.20M sh
Perceptive Advisors LLC 11.23% · 10.79M sh
Rubric Capital Management LP 9.47% · 9.10M sh
Johnson & Johnson Innovation - JJDC, Inc. 6.91% · 6.64M sh
BlackRock 4.95% · 4.76M sh
Adage Capital Management, L.P. 4.58% · 4.40M sh
Opaleye Management Inc. 3.70% · 3.55M sh
Millennium Management LLC 3.09% · 2.97M sh
683 Capital Management, LLC 2.39% · 2.30M sh
Woodline Partners LP 1.56% · 1.50M sh

Bar length is relative to the largest holder shown here, not to 100% of the company.

Insiders

50 filings tracked · 28 buys · 21 sells

NameRoleStake
Perceptive Advisors LLC -- 11.23%
Alexandria Forbes Chief Executive Officer 1.38%
Richard Giroux Chief Financial Officer 1.04%
Stuart Naylor Chief Development Officer 0.67%
Keith Harris Independent Chairperson 0.21%
Robert Zeldin Chief Medical Officer 0.18%
Robert Wollin General Counsel 0.06%
Neil Mendoza Independent Director 0.01%
Nicole Seligman Independent Director 0.01%
Jiuyun Yu Independent Director --

Insider transactions most recent Form 4 filings

DateNameRoleTypeSharesPrice
2026-10-05 Stuart Naylor Chief Development Officer Intent to Sell (Form 144) -27,659 $10.64
2026-09-22 Alan Sebulsky Director Other Derivative Acquisition +100,000 --
2026-09-22 Apothecary Capital LLC -- Initial Statement of Beneficial 0 --
2026-08-17 Alexandria Forbes Chief Executive Officer Automatic Disposition -62,000 $13.86
2026-07-20 Richard Giroux Chief Financial Officer Automatic Disposition -56,000 $12.51
2026-07-06 Stuart Naylor Chief Development Officer Automatic Disposition -27,659 $13.86–14.90
2026-06-24 Alexandria Forbes Chief Executive Officer Other Derivative Acquisition +980,000 --
2026-06-24 Richard Giroux Chief Financial Officer Other Derivative Acquisition +980,000 --
2026-06-24 Stuart Naylor Chief Development Officer Other Derivative Acquisition +70,000 --
2026-06-24 Robert Zeldin Chief Medical Officer Other Derivative Acquisition +100,000 --
2026-06-24 Robert Wollin General Counsel Other Derivative Acquisition +100,000 --
2026-06-10 Jiuyun Yu Independent Director Other Derivative Acquisition +60,000 --
2026-06-10 Thomas Shenk Independent Director & Member of Scientific Advisory Board Other Derivative Acquisition +69,662 --
2026-06-10 Keith Harris Independent Chairperson Other Derivative Acquisition +106,441 --
2026-06-10 Perceptive Advisors LLC -- Other Derivative Acquisition +60,000 --
2026-06-10 Nicole Seligman Independent Director Other Derivative Acquisition +60,000 --
2026-06-10 Neil Mendoza Independent Director Other Derivative Acquisition +66,641 --
2026-06-10 Ellen Hukkelhoven Independent Director Other Derivative Acquisition +60,000 --
2026-06-09 Keith Harris Independent Chairperson Derivative Exercise and Retained +75,000 --
2026-05-18 Alexandria Forbes Chief Executive Officer Automatic Disposition -62,000 $9.17

Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.

Quote time 2026-10-08 10:00:02 · For reference only, not investment advice and not tailored to your situation.