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Disclosery

LRMR LARIMAR THERAPEUTICS INC

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COM (common), issuer CIK 1374690

157 managers (162 13F filers) reported a position in LRMR shares at 2026-03-31, 87,757,046 shares in all. 39 filers opened a position and 15 filers sold out during the quarter.

Managers
157
13F filers
162
New
39
Added
59
Reduced
41
Sold out
15
Shares held by filers
87,757,046

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, 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
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…35,606,974$160M1.89%+5,000,00013F-HRTimelineGroup
Blue Owl Capital Holdings LP7,120,007$32M8.61%+296,31713F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.3,752,200$16.9M<0.01%+70,59713F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC3,625,278$16.3M0.01%-1,581,08613F-HRTimelineGroup
VANGUARD GROUP INCgroup of 5 filers holding3,624,726$16.3MnewTimeline
AIGH Capital Management LLC3,000,000$13.5M2.76%+1,000,00013F-HRTimeline
Driehaus Capital Management LLC2,934,399$13.2M0.1%+2,398,93513F-HRTimeline
DAFNA Capital Management LLC2,029,164$9.13M2.08%+1,090,00013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,561,585$7.03M<0.01%+214,37013F-HRTimelineGroup
RTW INVESTMENTS, LP1,500,000$6.75M0.07%-1,625,00013F-HRTimeline
Deep Track Capital, LP1,500,000$6.75M0.14%new13F-HRTimeline
Woodline Partners LP1,400,850$6.3M0.02%+600,00013F-HR/ATimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,108,761$4.99M<0.01%+15,43813F-HRTimelineGroup
Soleus Capital Management, L.P.1,066,960$4.8M0.19%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,047,385$4.71M0.01%-413,64313F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP933,464$4.2M<0.01%new13F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP911,326$4.1M<0.01%-59913F-HRTimelineGroup
Gem Investment Advisors, LLC854,230$3.84M3.78%+573,37013F-HRTimeline
Qube Research & Technologies Ltd847,644$3.81M0.01%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC817,517$3.68M<0.01%+315,26613F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP798,462$3.59M<0.01%+470,96813F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC739,942$3.33M0.01%+442,67613F-HRTimeline
Nuveen, LLCin group TIAA674,915$3.04M<0.01%+569,73313F-HRTimelineGroup
Caption Management, LLC635,024$2.86M0.14%+219,73013F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.617,211$2.78M0.01%-310,61013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.575,624$2.59M<0.01%+138,22513F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC554,007$2.49M<0.01%-124,93513F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC519,132$2.34M<0.01%-847,61813F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP475,612$2.14M<0.01%+180,42913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY420,813$1.89M<0.01%+284,83013F-HRTimelineGroup
SummitTX Capital, L.P.379,765$1.71M0.05%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP376,503$1.69M<0.01%+19,72813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO331,818$1.43M<0.01%+306,95413F-HR/ATimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…300,000$1.35M<0.01%new13F-HRTimelineGroup
Burkehill Global Management, LP300,000$1.35M0.07%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC299,700$1.35M0.02%+203,62613F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…292,250$1.32M0.01%new13F-HRTimelineGroup
Seven Fleet Capital Management LP256,585$1.15M0.36%new13F-HR/ATimeline
Cerity Partners LLCin group Cerity Partners LLC247,912$1.12M<0.01%+13,17513F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC169,144$761K<0.01%new13F-HRTimeline
DIADEMA PARTNERS LP166,637$750K0.31%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co145,342$654K<0.01%-16,77113F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…140,060$630K<0.01%-112,72313F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…136,530$614K<0.01%new13F-HRTimelineGroup
SEVEN GRAND MANAGERS, LLC125,000$562K0.04%new13F-HRTimeline
HRT FINANCIAL LP121,885$548K<0.01%new13F-HRTimeline
IEQ CAPITAL, LLC114,038$513K<0.01%+64,88813F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp107,331$483K<0.01%-8,59713F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\93,132$419K<0.01%+58,74213F-HRTimelineGroup
Marex Group Ltdin group Marex Group Ltd82,000$369K<0.01%-230,00013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC77,636$349K<0.01%+2,09513F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…69,087$311K<0.01%+48,01713F-HRTimeline
Creative Planningin group Creative Planning65,037$293K<0.01%+29,41913F-HRTimelineGroup
CWM, LLCin group CWM, LLC64,126$289K<0.01%+31,49513F-HRTimelineGroup
FMR LLCin group FMR LLC63,570$286K<0.01%+50,69013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.74,530$284K<0.01%013F-HRTimeline
RHUMBLINE ADVISERS62,685$282K<0.01%-88013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.61,350$276K<0.01%-297,55713F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD59,700$269K<0.01%-34,30013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC59,481$265K<0.01%-5,18913F-HRTimelineGroup
CIBC WORLD MARKET INC.53,000$238K<0.01%new13F-HRTimeline
AXQ CAPITAL, LP52,973$238K0.03%+35,31813F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC52,745$237K0.01%-132,94413F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC51,791$233K0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/47,359$213K<0.01%+6,88613F-HRTimelineGroup
EntryPoint Capital, LLC44,479$200K0.06%-8,84213F-HRTimeline
INCEPTIONR LLC44,006$198K0.05%new13F-HRTimeline
Persistent Asset Partners Ltd42,124$190K0.07%new13F-HRTimeline
Next Level Private LLC41,700$188K0.04%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC41,216$185K<0.01%-70,00013F-HRTimeline
HighTower Advisors, LLC38,465$173K<0.01%new13F-HRTimeline
Schonfeld Strategic Advisors LLC38,090$171K<0.01%-23,66913F-HRTimeline
CITIGROUP INCin group CITIGROUP INC36,107$162K<0.01%+29,61913F-HRTimelineGroup
JOURNEY STRATEGIC WEALTH LLC35,883$161K<0.01%+4713F-HRTimeline
Ethic Inc.35,451$160K<0.01%-32,65113F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…32,799$157K<0.01%+17,18513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/34,768$157K<0.01%+5,76013F-HRTimeline
Graham Capital Management, L.P.34,438$155K0.01%-7,81713F-HRTimeline
J. Goldman & Co LP33,756$152K0.01%-6,74413F-HRTimeline
Velan Capital Investment Management LP33,000$148K0.09%013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC32,793$148K<0.01%new13F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC31,645$142K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …31,347$141K0.03%+30,15913F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd30,884$139K<0.01%-88,05413F-HRTimelineGroup
UBS Group AGin group UBS Group AG29,699$134K<0.01%-84,88113F-HRTimelineGroup
Fi3 FINANCIAL ADVISORS, LLC29,493$133K0.04%+17113F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD28,796$130K<0.01%new13F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding28,755$129K+2,049Timeline
MetLife Investment Management, LLCin group MetLife Investment Management…26,668$120K<0.01%+13,07113F-HRTimelineGroup
ExodusPoint Capital Management, LP26,445$119K<0.01%-317,80113F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC24,782$112K<0.01%+1,93413F-HRTimeline
MIRABELLA FINANCIAL SERVICES LLP24,565$111K0.01%new13F-HRTimeline
Dynamic Technology Lab Private Ltd24,009$108K0.02%new13F-HRTimeline
Headlands Technologies LLC22,925$103K0.01%new13F-HRTimeline
STRS OHIO21,700$97.7K<0.01%+13,80013F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC21,267$95.7K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN20,228$91K<0.01%-36,66913F-HR/ATimelineGroup
Walleye Trading LLCin group Walleye Capital LLC20,000$90K<0.01%-5,00013F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.19,647$88.4K<0.01%+1,24613F-HRTimelineGroup
China Universal Asset Management Co., L…19,270$86.7K0.01%+5,32313F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC18,022$81.1K<0.01%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV17,084$76.9K<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC16,373$73.7K<0.01%-62,09713F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO16,336$73.5K<0.01%+5,76313F-HRTimelineGroup
Cherry Tree Wealth Management, LLC15,264$68.7K0.01%013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC14,529$65.4K<0.01%-6,43913F-HRTimeline
Police & Firemen's Retirement System of…13,726$61.8K<0.01%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …13,445$60.5K<0.01%-2,50713F-HRTimelineGroup
Grantham, Mayo, Van Otterloo & Co. LLC13,065$58.8K<0.01%new13F-HRTimeline
nVerses Capital, LLC13,004$58.5K0.05%new13F-HRTimeline
Keystone Financial Group13,000$58.5K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS12,226$55K<0.01%-32713F-HRTimelineGroup
B.O.S.S. Retirement Advisors, LLC12,154$54.7K0.02%-2,28513F-HRTimeline
ProShare Advisors LLC11,700$52.7K<0.01%-92313F-HRTimeline
Pallas Capital Advisors LLC11,162$50.2K<0.01%+99413F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC10,867$48.9K<0.01%013F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.11,119$47.9K0.01%new13F-HRTimeline
TWO SIGMA SECURITIES, LLC10,400$46.8K0.01%-1,99213F-HRTimeline
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …10,000$45K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC6,903$31.1K<0.01%+5,26513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND6,619$29.8K<0.01%013F-HRTimeline
Essential Partners LLC5,230$23.5K0.01%+3,71913F-HRTimeline
Solstein Capital, LLC4,477$20.1K0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,121$18.5K<0.01%013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,745$16.9K<0.01%-2,78713F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc3,691$16.6K<0.01%-1,16313F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…3,589$16.2K<0.01%-2,32813F-HRTimelineGroup
Farther Finance Advisors, LLC3,106$14.5K<0.01%+10613F-HRTimeline
GAMMA Investing LLC2,722$12.2K<0.01%+1,50713F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…2,631$11.8K<0.01%-36113F-HRTimeline
QUADRANT CAPITAL GROUP LLC1,976$8.89K<0.01%+22313F-HR/ATimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…1,959$8.82K<0.01%+1,81113F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.1,910$8.6K<0.01%+23013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,706$7.68K<0.01%+87413F-HR/ATimelineGroup
Root Financial Partners, LLC1,631$7.34K<0.01%new13F-HRTimeline
Sterling Capital Management LLC1,563$7.03K<0.01%-1,23913F-HRTimeline
Allworth Financial LP1,522$6.85K<0.01%+1,52113F-HRTimeline
Clearstead Advisors, LLC1,500$6.75K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,211$5.45K<0.01%013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\1,175$5.29K<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.1,038$4.67K<0.01%+99313F-HRTimeline
SUMMIT SECURITIES GROUP LLC794$3.57K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA757$3K<0.01%-74413F-HRTimelineGroup
True Wealth Design, LLC544$2.45K<0.01%013F-HRTimeline
MAI Capital Management512$2.3K<0.01%+51113F-HRTimeline
Quantbot Technologies LP331$1.49K<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC287$1.29K<0.01%+16313F-HRTimeline
Rialto Wealth Management, LLC260$1.17K<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.233$1.05K<0.01%013F-HRTimeline
Parallel Advisors, LLC193$869<0.01%013F-HR/ATimeline
Arax Advisory Partners157$707<0.01%+14713F-HRTimeline
IFP Advisors, Inc155$698<0.01%-6013F-HRTimeline
Fortitude Family Office, LLC148$666<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.31$140<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…17$77<0.01%013F-HRTimelineGroup
Wealth Preservation Advisors, LLC10$45<0.01%new13F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC2$9<0.01%new13F-HRTimeline