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Disclosery

MGTX MEIRAGTX HLDGS PLC

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COMMON STOCK (common), issuer CIK 1735438

151 managers (157 13F filers) reported a position in MGTX shares at 2026-06-30, 79,189,277 shares in all. 38 filers opened a position and 12 filers sold out during the quarter.

Managers
151
13F filers
157
New
38
Added
81
Reduced
22
Sold out
12
Shares held by filers
79,189,277

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

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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$165M30.86%013F-HRTimeline
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC10,786,658$146M2.26%+460,55513F-HRTimelineGroup
Rubric Capital Management LP9,100,000$123M1.13%+2,100,00013F-HRTimeline
JOHNSON & JOHNSONin group JOHNSON & JOHNSON6,641,064$89.7M11.23%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.4,757,178$64.3M<0.01%+1,589,03013F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…4,400,000$59.4M0.08%+400,00013F-HRTimelineGroup
Opaleye Management Inc.3,550,000$48M4.34%+1,426,74113F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,971,752$40.1M0.03%-493,94713F-HRTimelineGroup
683 Capital Management, LLCin group 683 Capital Management, LLC2,300,000$31.1M2.86%-150,00013F-HRTimelineGroup
Woodline Partners LP1,500,135$20.3M0.06%+1,199,81213F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,393,222$18.8M<0.01%+639,84413F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,312,703$17.7M<0.01%-277,23713F-HRTimelineGroup
Knoll Capital Management, LLC1,250,000$16.9M9.42%013F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC1,105,421$14.9M0.26%+247,04213F-HRTimeline
Long Focus Capital Management, LLC1,080,300$14.6M0.6%+555,55513F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC1,015,106$13.7M0.05%+1,001,43313F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.852,902$11.5M0.01%+427,62113F-HRTimelineGroup
HEIGHTS CAPITAL MANAGEMENT, INCin group HEIGHTS CAPITAL MANAGEMENT, I…850,000$11.5M2.65%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC849,082$11.5M<0.01%+264,18313F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding829,600$11.2M+398,654Timeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC650,489$8.79M0.01%+534,49413F-HRTimelineGroup
Erste Asset Management GmbHin group Erste Asset Management GmbH691,200$8.67M0.07%-28,50213F-HRTimelineGroup
Nuveen, LLCin group TIAA639,459$8.64M<0.01%+507,00513F-HRTimelineGroup
J. Goldman & Co LP601,972$8.13M0.29%+395,76213F-HRTimeline
Jupiter Topco LLCin group Janus Henderson475,757$6.43M<0.01%13F-HRTimelineGroup
PFM Health Sciences, LP455,286$6.15M0.53%new13F-HRTimeline
Hennion & Walsh Asset Management, Inc.421,979$5.7M0.16%+67,22413F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP409,855$5.54M<0.01%+137,97613F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC350,174$4.73M0.01%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC327,416$4.42M<0.01%-113,99813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/289,720$3.91M<0.01%+44,77613F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.202,393$2.73M<0.01%+131,44013F-HRTimelineGroup
Ghisallo Capital Management LLC200,000$2.7M0.05%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC196,583$2.66M<0.01%+85,59013F-HRTimelineGroup
Privium Fund Management B.V.196,112$2.65M0.49%-16,00013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO205,212$2.57M<0.01%+180,87413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding186,038$2.51M-118,624Timeline
Squarepoint Ops LLCin group Squarepoint Ops LLC162,412$2.19M<0.01%+143,82813F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd148,065$2M0.04%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…147,329$1.99M<0.01%+50,16113F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…142,923$1.93M<0.01%+16,59213F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co142,434$1.92M<0.01%+42,24013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp138,352$1.87M<0.01%+38,25513F-HRTimelineGroup
BLAIR WILLIAM & CO/IL125,478$1.7M<0.01%+5613F-HRTimeline
Voleon Capital Management LP117,790$1.59M0.03%+95,43113F-HRTimeline
Swiss National Bank111,400$1.51M<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC98,955$1.34M<0.01%+60,81713F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.94,540$1.28M<0.01%+10513F-HRTimelineGroup
ALPS ADVISORS INC93,186$1.26M0.01%new13F-HRTimeline
Prosight Management, LP90,000$1.22M0.21%-2,539,97113F-HRTimeline
Aquatic Capital Management LLC87,064$1.18M0.04%+86,11813F-HRTimeline
RHUMBLINE ADVISERS86,848$1.17M<0.01%+31,08713F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …77,700$1.05M0.01%+9,50013F-HRTimelineGroup
DAVENPORT & Co LLC72,370$978K<0.01%+3,17013F-HRTimeline
Engineers Gate Manager LP69,092$933K0.01%+42,29213F-HRTimeline
Fort Sheridan Advisors LLC66,441$898K0.1%-41913F-HRTimeline
Quantinno Capital Management LP66,134$893K<0.01%+9,73213F-HRTimeline
Trexquant Investment LP65,393$883K0.01%-32,22713F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC64,368$870K<0.01%new13F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources61,071$825K<0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…60,550$818K<0.01%+58,10313F-HR/ATimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC60,490$817K<0.01%+6,63413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\59,573$805K<0.01%+29,35713F-HRTimelineGroup
AlphaCentric Advisors LLC54,469$736K0.62%+77513F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN53,909$728K<0.01%+37,31513F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC50,000$676K<0.01%013F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/49,380$668K<0.01%+17,95013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD49,200$665K<0.01%+38,85513F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…48,474$655K<0.01%+11,56013F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P47,854$647K0.02%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO47,600$643K<0.01%-52,02713F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…40,193$543K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…35,278$477K<0.01%+12,57713F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.54,690$474K<0.01%+10013F-HRTimeline
EntryPoint Capital, LLC34,510$466K0.11%+2,57813F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…34,119$461K0.11%+3,54913F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc32,780$443K<0.01%+28,96913F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC32,733$442K<0.01%+27,36113F-HRTimelineGroup
LETKO, BROSSEAU & ASSOCIATES INC32,000$432K0.01%013F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding31,826$430K+6,112Timeline
AXQ CAPITAL, LP31,189$421K0.05%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…30,700$415K<0.01%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP28,769$389K<0.01%new13F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC28,898$379K<0.01%-10,88913F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd28,007$378K<0.01%-15,34913F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC27,995$378K<0.01%new13F-HRTimelineGroup
Beacon Pointe Advisors, LLC26,763$362K<0.01%013F-HRTimeline
CreativeOne Wealth, LLCin group CreativeOne Wealth, LLC26,424$357K0.01%013F-HRTimelineGroup
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…24,528$331K<0.01%+2,49513F-HRTimelineGroup
DIVERSIFIED TRUST CO23,922$323K0.01%new13F-HRTimeline
IEQ CAPITAL, LLC22,330$302K<0.01%new13F-HRTimeline
STRS OHIO22,200$300K<0.01%+19,40013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND21,063$285K<0.01%+13,80013F-HRTimeline
Creative Planningin group Creative Planning20,459$276K<0.01%+5,00013F-HRTimelineGroup
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.18,319$247K<0.01%+1,04213F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…17,957$243K<0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…17,732$240K<0.01%+6,07113F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …17,030$230K<0.01%+3,84013F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM15,324$207K<0.01%new13F-HRTimeline
Entropy Technologies, LP15,136$204K0.01%new13F-HRTimeline
Perigon Wealth Management, LLC15,029$203K<0.01%-11113F-HRTimeline
China Universal Asset Management Co., L…14,739$199K0.01%+45513F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV14,501$196K<0.01%new13F-HR/ATimeline
nVerses Capital, LLC14,062$190K0.29%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA12,820$173K<0.01%+3,17713F-HRTimelineGroup
Schonfeld Strategic Advisors LLC12,634$171K<0.01%new13F-HRTimeline
KLP KAPITALFORVALTNING AS12,600$170K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC12,497$169K<0.01%+2,08413F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…12,237$165K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC12,205$165K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS12,074$163K<0.01%-99,64513F-HRTimelineGroup
ALGERT GLOBAL LLC11,700$158K<0.01%+1,43013F-HRTimeline
ProShare Advisors LLC10,906$147K<0.01%+75013F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.10,680$144K0.02%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…10,190$138K<0.01%013F-HRTimelineGroup
DIADEMA PARTNERS LP8,368$113K0.04%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…6,807$92K<0.01%+15713F-HRTimelineGroup
FMR LLCin group FMR LLC5,949$80.4K<0.01%+12813F-HRTimelineGroup
Ameritas Investment Partners, Inc.group of 2 filers holding5,473$73.9K+1,992Timeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,342$72.2K<0.01%+3,17813F-HRTimelineGroup
Arax Advisory Partners4,267$57.6K<0.01%+4,22413F-HRTimeline
State of Alaska, Department of Revenue4,030$54K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC2,913$39.4K<0.01%+1,88313F-HRTimeline
Versant Capital Management, Inc2,354$31.8K<0.01%+8213F-HRTimeline
Persistent Asset Partners Ltd2,133$28.8K0.01%new13F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,704$23K<0.01%-9113F-HRTimeline
Integrated Wealth Concepts LLC808$10.9K<0.01%new13F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp800$10.8K<0.01%013F-HRTimelineGroup
GAMMA Investing LLC516$6.97K<0.01%+13013F-HRTimeline
Sterling Capital Management LLC419$5.66K<0.01%-18513F-HRTimeline
Farther Finance Advisors, LLC324$4.33K<0.01%-10413F-HRTimeline
Essential Partners LLC311$4.2K<0.01%+10113F-HRTimeline
Allworth Financial LP307$4.15K<0.01%+27213F-HRTimeline
ROTHSCHILD INVESTMENT LLC240$3.24K<0.01%+6013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.165$2.23K<0.01%+313F-HRTimelineGroup
IFP Advisors, Inc149$2.01K<0.01%+13313F-HRTimeline
Fortitude Family Office, LLC139$1.88K<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.134$1.81K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…78$1.05K<0.01%+2613F-HRTimelineGroup
SBI Securities Co., Ltd.78$1.05K<0.01%-2413F-HRTimeline
Parallel Advisors, LLC77$1.04K<0.01%-20313F-HRTimeline
Torren Management, LLC70$946<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…68$920<0.01%+3513F-HRTimelineGroup
Quarry LP45$608<0.01%new13F-HRTimeline
True Wealth Design, LLC25$338<0.01%-113F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\17$230<0.01%013F-HRTimelineGroup
Caitong International Asset Management …12$162<0.01%+1113F-HRTimeline
Larson Financial Group LLC10$135<0.01%013F-HRTimeline
Clearstead Advisors, LLC9$122<0.01%new13F-HRTimeline
Silver Grove Financial Group, Inc.3$41<0.01%new13F-HRTimeline
Covestor Ltd36$00%new13F-HRTimelineValue filed as zero, left out of ratios.