MeiraGTx Holdings plc (MGTX) Institutional Ownership Changes & 13F Activity

MeiraGTx Holdings plc (MGTX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Prosight Management, Lp, Rubric Capital Management Lp, Opaleye Management Inc., Woodline Partners Lp, and Jacobs Levy Equity Management, Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+3,840+29.1%17,030$230.07KQ2 2026Sep 09, 2026
Citadel Advisors LlcBuy+534,494+460.8%650,489$8.79MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemBuy+58,103+2374.5%60,550$818.03KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+14,50114,501$195.91KQ2 2026Aug 19, 2026
Public Employees Retirement System Of OhioBuy+30,70030,700$414.76KQ2 2026Aug 17, 2026
Prosight Management, LpSell-2,539,971-96.6%90,000$1.22MQ2 2026Aug 14, 2026
Rubric Capital Management LpBuy+2,100,000+30.0%9,100,000$122.94MQ2 2026Aug 14, 2026
Opaleye Management Inc.Buy+1,426,741+67.2%3,550,000$47.96MQ2 2026Aug 14, 2026
Woodline Partners LpBuy+1,199,812+399.5%1,500,135$20.27MQ2 2026Aug 14, 2026
Jacobs Levy Equity Management, IncBuy+1,001,433+7324.2%1,015,106$13.71MQ2 2026Aug 14, 2026
Heights Capital Management, IncBuy+850,000850,000$11.48MQ2 2026Aug 14, 2026
Long Focus Capital Management, LlcBuy+555,555+105.9%1,080,300$14.59MQ2 2026Aug 14, 2026
Millennium Management LlcSell-493,947-14.3%2,971,752$40.15MQ2 2026Aug 14, 2026
Perceptive Advisors LlcBuy+460,555+4.5%10,786,658$145.73MQ2 2026Aug 14, 2026
Pfm Health Sciences, LpBuy+455,286455,286$6.15MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+427,621+100.6%852,902$11.52MQ2 2026Aug 14, 2026
Adage Capital Partners Gp, L.L.C.Buy+400,000+10.0%4,400,000$59.44MQ2 2026Aug 14, 2026
J. Goldman & Co LpBuy+395,762+191.9%601,972$8.13MQ2 2026Aug 14, 2026
Kennedy Capital Management LlcBuy+247,042+28.8%1,105,421$14.93MQ2 2026Aug 14, 2026
Ghisallo Capital Management LlcBuy+200,000200,000$2.70MQ2 2026Aug 14, 2026
683 Capital Management, LlcSell-150,000-6.1%2,300,000$31.07MQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+143,828+773.9%162,412$2.19MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+131,440+185.2%202,393$2.73MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-113,998-25.8%327,416$4.42MQ2 2026Aug 14, 2026
Voleon Capital Management LpBuy+95,431+426.8%117,790$1.59MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+94,54094,540$1.28MQ2 2026Aug 14, 2026
Aquatic Capital Management LlcBuy+86,118+9103.4%87,064$1.18MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+85,590+77.1%196,583$2.66MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+64,36864,368$869.61KQ2 2026Aug 14, 2026
Barclays PlcBuy+60,817+159.5%98,955$1.34MQ2 2026Aug 14, 2026
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Frequently asked questions about MGTX activity

  • Which institutional owners are buying MGTX?

    Institutional owners buying MGTX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MGTX activity?

    "Buy" means an investor increased their reported position in MGTX compared to the prior reporting period. This reflects growing exposure to MeiraGTx Holdings plc (MGTX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MGTX increasing?

    Institutional interest in MGTX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.