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Disclosery

MGTX MEIRAGTX HLDGS PLC

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COMMON STOCK (common), issuer CIK 1735438

118 managers (119 13F filers) reported a position in MGTX shares at 2025-03-31, 59,986,502 shares in all. 21 filers opened a position and 5 filers sold out during the quarter.

Managers
118
13F filers
119
New
21
Added
43
Reduced
34
Sold out
5
Shares held by filers
59,986,502

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 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC12,581,103$85.3M3.02%013F-HR/ATimelineGroup
Sanofi12,197,737$82.7M49.84%013F-HRTimeline
JOHNSON & JOHNSONin group JOHNSON & JOHNSON6,641,064$45M13.17%013F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…5,634,578$38.2M0.07%+600,00013F-HRTimelineGroup
Prosight Management, LP3,691,546$25M8.22%-699,29113F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.3,128,405$21.2M<0.01%+156,88113F-HRTimelineGroup
683 Capital Management, LLCin group 683 Capital Management, LLC2,575,000$17.5M1.77%+160,00013F-HRTimelineGroup
Rubric Capital Management LP1,776,321$12M0.22%new13F-HRTimeline
Knoll Capital Management, LLC1,250,000$8.47M5.51%013F-HRTimeline
J. Goldman & Co LP1,158,761$7.86M0.28%+608,24113F-HRTimeline
Woodline Partners LP803,546$5.45M0.04%-731,57813F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH789,702$5.37M0.07%+120,00013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP644,086$4.37M<0.01%+41,79613F-HRTimelineGroup
ROYCE & ASSOCIATES LP607,839$4.12M0.04%-2,43613F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC597,903$4.05M<0.01%+27,25713F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC449,549$3.05M<0.01%-9,36713F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP392,398$2.66M<0.01%-6,41513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.350,401$2.38M<0.01%+330,13113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY339,598$2.3M<0.01%+125,96313F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP313,407$2.12M<0.01%-2,25813F-HRTimelineGroup
Long Focus Capital Management, LLC249,745$1.69M0.12%+60,00013F-HRTimeline
PLATINUM INVESTMENT MANAGEMENT LTD208,308$1.41M0.08%-41,69213F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…206,980$1.4M<0.01%+55,85413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC203,086$1.38M<0.01%-65,26713F-HR/ATimelineGroup
READYSTATE ASSET MANAGEMENT LP189,598$1.29M0.06%+70,76813F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…155,152$1.05M<0.01%-127,15413F-HRTimelineGroup
Affinity Asset Advisors, LLC150,000$1.02M0.16%new13F-HRTimeline
Nuveen, LLCin group TIAA149,231$1.01M<0.01%13F-HRTimelineGroup
BLAIR WILLIAM & CO/IL132,533$899K<0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…125,657$852K<0.01%+34,13613F-HRTimelineGroup
Knott David M Jr125,010$848K0.4%+29,93013F-HRTimeline
Janney Montgomery Scott LLC122,220$829K<0.01%+46,90213F-HRTimeline
Privium Fund Management B.V.117,000$793K0.21%-108,07813F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co116,027$787K<0.01%+4,00613F-HR/ATimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp110,567$750K<0.01%+3,98513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC83,765$568K<0.01%-63,99013F-HR/ATimelineGroup
Informed Momentum Co LLC83,049$563K0.1%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC82,118$557K<0.01%new13F-HRTimelineGroup
Fort Sheridan Advisors LLC69,716$473K0.07%-23913F-HRTimeline
UBS Group AGin group UBS Group AG62,791$426K<0.01%-56,69313F-HRTimelineGroup
RHUMBLINE ADVISERS58,227$395K<0.01%+3,33613F-HR/ATimeline
DAVENPORT & Co LLC56,200$381K<0.01%-21,00013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\51,220$347K<0.01%+9,02213F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.50,390$342K<0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC47,491$322K<0.01%-173,84913F-HRTimelineGroup
LETKO, BROSSEAU & ASSOCIATES INC45,300$307K0.01%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/44,911$304K<0.01%-18,98113F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.44,811$304K<0.01%-78,83213F-HRTimelineGroup
Trexquant Investment LP44,318$300K<0.01%+4,97013F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …42,500$288K<0.01%013F-HRTimelineGroup
Acuitas Investments, LLC42,115$286K0.24%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD39,527$268K<0.01%+6,17313F-HRTimeline
Creative Planningin group Creative Planning38,232$259K<0.01%new13F-HRTimelineGroup
CreativeOne Wealth, LLCin group CreativeOne Wealth, LLC36,600$248K0.01%-7,39913F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC36,594$248K<0.01%-3,78813F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC33,962$230K<0.01%new13F-HR/ATimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC33,902$230K0.01%+43313F-HRTimeline
Polymer Capital Management (US) LLC32,987$224K0.07%+18,52013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources32,546$221K<0.01%new13F-HRTimelineGroup
Worth Venture Partners, LLC31,986$217K0.41%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…30,837$209K<0.01%-12713F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding30,060$205K+1,181Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO28,561$194K<0.01%-277,41613F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC24,436$166K<0.01%+11,94913F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN24,424$166K<0.01%+83513F-HRTimelineGroup
SkyView Investment Advisors, LLC24,000$163K0.02%-6,00013F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.23,095$157K<0.01%-5213F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/20,941$142K<0.01%+2,96513F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC18,410$125K<0.01%-8,30513F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …16,869$114K<0.01%+59213F-HRTimelineGroup
China Universal Asset Management Co., L…15,676$106K0.01%-89513F-HRTimeline
GSA CAPITAL PARTNERS LLP15,237$103K0.01%new13F-HRTimeline
SG Americas Securities, LLC14,895$101K<0.01%-7,34513F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd14,334$97.1K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC13,730$93.1K<0.01%-3,08413F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC12,609$85.5K<0.01%-26513F-HR/ATimelineGroup
IEQ CAPITAL, LLC12,267$83.2K<0.01%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…12,237$83K<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…11,661$79.1K<0.01%013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.15,000$78.6K<0.01%013F-HRTimelineGroup
CIBC WORLD MARKETS CORP10,461$70.9K<0.01%new13F-HRTimeline
Family Manage LLC10,000$67.8K0.01%new13F-HRTimeline
PUREfi Wealth, LLC10,000$67.8K0.07%-10,00013F-HRTimeline
CWM, LLCin group CWM, LLC8,674$59K<0.01%+8,20213F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA8,683$58K<0.01%+74213F-HR/ATimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND7,263$49.2K<0.01%013F-HR/ATimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,871$33K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc4,763$32.3K<0.01%+42413F-HRTimelineGroup
GROUP ONE TRADING LLC4,517$30.6K<0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC4,031$27K<0.01%+1,78313F-HRTimeline
FMR LLCin group FMR LLC3,462$23.5K<0.01%+1,13713F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…3,446$23.4K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,344$22.7K<0.01%-2,65313F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC2,109$14K<0.01%+2,01313F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…2,045$13.9K<0.01%+10413F-HRTimeline
GF FUND MANAGEMENT CO. LTD.2,001$13.6K<0.01%+36013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,792$12.2K<0.01%-3,18313F-HRTimelineGroup
AMALGAMATED BANK1,607$11K<0.01%+57013F-HRTimeline
Sandy Spring Bank800$5.42K<0.01%-70013F-HRTimeline
GAMMA Investing LLC656$4.45K<0.01%+53613F-HR/ATimeline
WASHINGTON TRUST Co479$3.25K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC435$2.95K<0.01%+23713F-HRTimeline
Versant Capital Management, Inc425$2.88K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.316$2.14K<0.01%+9213F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.330$2K<0.01%+20013F-HRTimelineGroup
Sterling Capital Management LLC295$2K<0.01%-16513F-HRTimeline
Covestor Ltd288$2K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…203$1.38K<0.01%new13F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC170$1.15K<0.01%+7513F-HRTimeline
Arax Advisory Partners113$767<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.100$678<0.01%-2,20013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…67$454<0.01%new13F-HRTimelineGroup
Founders Capital Management50$339<0.01%new13F-HRTimeline
Larson Financial Group LLC43$292<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\38$258<0.01%013F-HRTimelineGroup
True Wealth Design, LLC18$123<0.01%new13F-HRTimeline
IFP Advisors, Inc12$81<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

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

    Accepted , ingested