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Disclosery

MGTX MEIRAGTX HLDGS PLC

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COMMON STOCK (common), issuer CIK 1735438

130 managers (133 13F filers) reported a position in MGTX shares at 2026-03-31, 67,387,836 shares in all. 17 filers opened a position and 15 filers sold out during the quarter.

Managers
130
13F filers
133
New
17
Added
49
Reduced
39
Sold out
15
Shares held by filers
67,387,836

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Naylor Stuartofficer (CHIEF SCI OFCR, OPHTHALMOLOGY)2026-10-06-27,659 S$10.64Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Sanofi12,197,737$106M31.44%013F-HRTimeline
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC10,326,103$89.3M1.76%013F-HR/ATimelineGroup
Rubric Capital Management LP7,000,000$60.6M0.74%+824,66913F-HRTimeline
JOHNSON & JOHNSONin group JOHNSON & JOHNSON6,641,064$57.5M8.82%013F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…4,000,000$34.6M0.05%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC3,465,699$30M0.02%+289,30913F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.3,168,148$27.4M<0.01%+98,30413F-HRTimelineGroup
Prosight Management, LP2,629,971$22.8M3.73%-579,81713F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC2,450,000$21.2M1.97%-109,08213F-HRTimelineGroup
Opaleye Management Inc.2,123,259$18.4M2.42%+1,732,41513F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,589,940$13.8M<0.01%-239,31213F-HRTimelineGroup
Knoll Capital Management, LLC1,250,000$10.8M6.01%013F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC858,379$7.43M0.16%+787,64113F-HRTimeline
STATE STREET CORPin group STATE STREET CORP753,378$6.52M<0.01%+23,93313F-HRTimelineGroup
Logos Global Management LP700,000$6.06M0.31%new13F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH719,702$5.82M0.05%-70,00013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC584,899$5.07M<0.01%+11,11613F-HRTimelineGroup
Long Focus Capital Management, LLC524,745$4.54M0.2%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC441,414$3.82M<0.01%-15,33013F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding430,946$3.73MnewTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.425,281$3.68M<0.01%+43,51813F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.354,755$3.07M0.1%+46,24613F-HRTimeline
UBS Group AGgroup of 2 filers holding304,662$2.64M+82,040Timeline
Woodline Partners LP300,323$2.6M0.01%013F-HR/ATimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP271,879$2.35M<0.01%+13,66913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/244,944$2.12M<0.01%+36,49013F-HRTimelineGroup
Privium Fund Management B.V.212,112$1.84M0.38%+12,11213F-HRTimeline
J. Goldman & Co LP206,210$1.79M0.08%-113,47713F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.167,452$1.45M0.02%-130,79013F-HRTimelineGroup
Nuveen, LLCin group TIAA132,454$1.15M<0.01%+1,31213F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…126,331$1.09M<0.01%-4,27913F-HRTimelineGroup
BLAIR WILLIAM & CO/IL125,422$1.09M<0.01%+2213F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC115,995$1M<0.01%-27,45013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS111,719$967K<0.01%-16,28013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC110,993$961K<0.01%+2,97913F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC105,944$917K<0.01%+7,70213F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co100,194$868K<0.01%-11,22813F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp100,097$867K<0.01%-99313F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO99,627$863K<0.01%new13F-HRTimelineGroup
Trexquant Investment LP97,620$845K0.01%+30,08313F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…97,168$841K<0.01%+1,44913F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.94,435$818K<0.01%+3,55413F-HRTimelineGroup
PLATINUM INVESTMENT MANAGEMENT LTD93,922$813K0.21%013F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.70,953$614K<0.01%new13F-HRTimelineGroup
DAVENPORT & Co LLC69,200$599K<0.01%013F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …68,200$591K0.01%+1,80013F-HRTimelineGroup
Fort Sheridan Advisors LLC66,860$579K0.07%+1,29113F-HRTimeline
Quantinno Capital Management LP56,402$488K<0.01%-4,35413F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC56,253$487K0.01%+19,25313F-HRTimelineGroup
RHUMBLINE ADVISERS55,761$483K<0.01%-44613F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC53,856$466K<0.01%-3,37613F-HRTimelineGroup
AlphaCentric Advisors LLC53,694$465K0.46%+25,19813F-HRTimeline
ALLIANCEBERNSTEIN L.P.54,590$434K<0.01%013F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC50,000$433K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd43,356$375K0.01%+5,32613F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC39,787$338K<0.01%+15,99513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC38,138$330K<0.01%-57,59213F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…36,914$320K<0.01%-39,98813F-HRTimelineGroup
LETKO, BROSSEAU & ASSOCIATES INC32,000$277K<0.01%013F-HRTimeline
EntryPoint Capital, LLC31,932$277K0.08%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/31,430$273K<0.01%+8,65413F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…30,570$265K0.07%+74613F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\30,216$262K<0.01%-10,49513F-HRTimelineGroup
Engineers Gate Manager LP26,800$232K<0.01%-3913F-HRTimeline
Beacon Pointe Advisors, LLC26,763$232K<0.01%+6,00013F-HRTimeline
CreativeOne Wealth, LLCin group CreativeOne Wealth, LLC26,424$229K0.01%013F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding25,714$223K+797Timeline
HRT FINANCIAL LP24,444$211K<0.01%new13F-HRTimeline
SkyView Investment Advisors, LLC24,000$208K0.03%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO24,338$197K<0.01%+39213F-HR/ATimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…22,701$197K<0.01%+2,66813F-HRTimelineGroup
Voleon Capital Management LP22,359$194K<0.01%+5,77213F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…22,033$191K<0.01%-54513F-HRTimelineGroup
ExodusPoint Capital Management, LP21,847$189K<0.01%-65,07913F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC18,584$161K<0.01%new13F-HRTimelineGroup
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.17,277$150K<0.01%13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN16,594$144K<0.01%-33,19413F-HR/ATimelineGroup
Creative Planningin group Creative Planning15,459$134K<0.01%+1313F-HRTimelineGroup
Perigon Wealth Management, LLC15,140$131K<0.01%+14013F-HRTimeline
China Universal Asset Management Co., L…14,284$124K0.01%+1,16813F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC13,673$118K<0.01%-42,56213F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …13,190$114K<0.01%-1,70813F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP12,526$108K0.01%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…12,237$106K<0.01%013F-HRTimeline
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA12,106$105K<0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…11,661$101K<0.01%013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC10,413$90.2K<0.01%-5,60313F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD10,345$89.6K<0.01%-32,30013F-HRTimeline
ALGERT GLOBAL LLC10,270$88.9K<0.01%new13F-HR/ATimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…10,190$88.2K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC10,156$88K<0.01%-1,62413F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA9,643$84K<0.01%-1,24113F-HRTimelineGroup
CWM, LLCin group CWM, LLC7,768$67.3K<0.01%-1513F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND7,263$62.9K<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…6,650$57.6K<0.01%+52013F-HRTimelineGroup
FMR LLCin group FMR LLC5,821$50.4K<0.01%-8,00413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC5,372$46.5K<0.01%-10,18013F-HRTimelineGroup
State of Alaska, Department of Revenue4,030$34K<0.01%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc3,811$33K<0.01%-46513F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,481$30.1K<0.01%013F-HRTimelineGroup
STRS OHIO2,800$24.2K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…2,447$21.2K<0.01%-33813F-HRTimeline
Versant Capital Management, Inc2,272$19.7K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,164$18.7K<0.01%+65013F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.1,795$15.5K<0.01%+21513F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,030$8.92K<0.01%+90013F-HRTimeline
Aquatic Capital Management LLC946$8.19K<0.01%new13F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp800$6.93K<0.01%013F-HRTimelineGroup
Sterling Capital Management LLC604$5.23K<0.01%-33613F-HRTimeline
Farther Finance Advisors, LLC428$3.89K<0.01%+21713F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.414$3.58K<0.01%+26413F-HR/ATimelineGroup
GAMMA Investing LLC386$3.34K<0.01%+1113F-HRTimeline
Parallel Advisors, LLC280$2.42K<0.01%new13F-HR/ATimeline
Essential Partners LLC210$1.82K<0.01%+313F-HRTimeline
ROTHSCHILD INVESTMENT LLC180$1.56K<0.01%-513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.162$1.4K<0.01%-3813F-HRTimelineGroup
SBI Securities Co., Ltd.102$883<0.01%-613F-HRTimeline
Parkside Financial Bank & Trust75$650<0.01%013F-HRTimeline
Torren Management, LLC70$606<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…52$450<0.01%-2813F-HRTimelineGroup
Arax Advisory Partners43$372<0.01%new13F-HRTimeline
Allworth Financial LP35$304<0.01%+2013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…33$287<0.01%-3913F-HR/ATimelineGroup
Root Financial Partners, LLC33$286<0.01%new13F-HRTimeline
True Wealth Design, LLC26$226<0.01%+113F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\17$147<0.01%new13F-HRTimelineGroup
IFP Advisors, Inc16$139<0.01%013F-HRTimeline
Larson Financial Group LLC10$87<0.01%+713F-HRTimeline
MAI Capital Management3$26<0.01%new13F-HRTimeline
Caitong International Asset Management …1$9<0.01%new13F-HRTimeline

Events

  • Naylor Stuart sold 27,659 MGTX shares on 2026-10-06, Form 4 filed 2026-10-06. 0001742771-26-000014

    Accepted , ingested