Larimar Therapeutics, Inc. - LRMR

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 10 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
DEERFIELD MANAGEMENT COMPANY, L.P. History No change 30,606,974 116,612 1.49% 1.51% 1 0 0.0% Q4 2025 Feb 17, 2026
Blue Owl Capital Holdings LP History Added to 6,823,690 25,998 8.02% 5.87% 2 +970,650 16.58% Q4 2025 Feb 20, 2026
MILLENNIUM MANAGEMENT LLC History Added to 5,206,364 19,836 0.01% 0.01% 3 +129,533 2.55% Q4 2025 Feb 17, 2026
BlackRock, Inc. History Added to 3,681,603 14,026 0.0% 0.0% 4 +342,411 10.25% Q4 2025 Feb 12, 2026
RTW INVESTMENTS, LP History New 3,125,000 11,906 0.12% 5 +3,125,000 New Q4 2025 Feb 17, 2026
VANGUARD GROUP INC History Reduced 3,046,216 11,606 0.0% 0.0% 6 -41,624 -1.35% Q4 2025 Jan 29, 2026
AIGH Capital Management LLC History Added to 2,000,000 7,620 1.84% 0.91% 7 +1,000,000 100.0% Q4 2025 Feb 02, 2026
Point72 Asset Management, L.P. History Added to 1,461,028 5,566 0.01% 0.01% 8 +237,162 19.38% Q4 2025 Feb 17, 2026
CITADEL ADVISORS LLC History Reduced 1,384,250 5,273 0.0% 0.0% 9 -481,056 -25.79% Q4 2025 Feb 17, 2026
GOLDMAN SACHS GROUP INC History Reduced 1,347,215 5,132 0.0% 0.0% 10 -227,786 -14.46% Q4 2025 Mar 25, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 1,093,323 4,166 0.0% 0.0% 11 +70,796 6.92% Q4 2025 Feb 09, 2026
DAFNA Capital Management LLC History Reduced 939,164 3,578 0.83% 0.82% 12 -88,600 -8.62% Q4 2025 Feb 17, 2026
Alyeska Investment Group, L.P. History Reduced 927,821 3,534 0.01% 0.02% 13 -959,348 -50.84% Q4 2025 Feb 13, 2026
STATE STREET CORP History Added to 911,925 3,474 0.0% 0.0% 14 +20,056 2.25% Q4 2025 Feb 13, 2026
Woodline Partners LP History Reduced 800,850 3,051 0.01% 0.02% 15 -822,000 -50.65% Q4 2025 Feb 17, 2026
JANE STREET GROUP, LLC History Added to 678,942 2,586 0.0% 0.0% 16 +236,530 53.46% Q4 2025 Feb 12, 2026
Verition Fund Management LLC History No change 567,683 2,162 0.01% 0.01% 17 0 0.0% Q4 2025 Feb 13, 2026
DRIEHAUS CAPITAL MANAGEMENT LLC History No change 535,464 2,040 0.01% 0.01% 18 0 0.0% Q4 2025 Feb 17, 2026
AQR CAPITAL MANAGEMENT LLC History Reduced 502,251 1,913 0.0% 0.0% 19 -60,152 -10.7% Q4 2025 Feb 17, 2026
D. E. Shaw & Co., Inc. History New 437,399 1,666 0.0% 20 +437,399 New Q4 2025 Feb 17, 2026
Caption Management, LLC History Reduced 415,294 1,582 0.01% 0.07% 21 -2,436,758 -85.44% Q4 2025 Feb 17, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 397,183 1,513 0.0% 0.0% 22 +65,960 19.91% Q4 2025 Feb 17, 2026
FEDERATED HERMES, INC. History Added to 358,907 1,367 0.0% 0.0% 23 +356,512 14885.68% Q4 2025 Feb 12, 2026
NORTHERN TRUST CORP History Reduced 356,775 1,359 0.0% 0.0% 24 -21,532 -5.69% Q4 2025 Feb 17, 2026
ExodusPoint Capital Management, LP History New 344,246 1,311 0.01% 25 +344,246 New Q4 2025 Feb 17, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 327,494 1,247 0.0% 0.0% 26 +271,237 482.14% Q4 2025 Feb 12, 2026
Marex Group plc History Added to 312,000 1,188 0.01% 0.0% 27 +171,000 121.28% Q4 2025 Feb 12, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 297,266 1,132 0.0% 0.0% 28 -561,376 -65.38% Q4 2025 Feb 12, 2026
TWO SIGMA INVESTMENTS, LP History Added to 295,183 1,124 0.0% 0.0% 29 +160,454 119.09% Q4 2025 Feb 17, 2026
Cerity Partners LLC History Reduced 234,737 894 0.0% 0.0% 30 -4,409 -1.84% Q4 2025 Feb 11, 2026
ADAR1 Capital Management, LLC History Reduced 185,689 707 0.05% 0.07% 31 -50,000 -21.21% Q4 2025 Feb 18, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History No change 162,113 617 0.0% 0.0% 32 0 0.0% Q4 2025 Feb 13, 2026
MORGAN STANLEY History Added to 135,983 518 0.0% 0.0% 33 +42,980 46.21% Q4 2025 Feb 13, 2026
XTX Topco Ltd History Added to 118,938 453 0.01% 0.01% 34 +66,569 127.12% Q4 2025 Feb 17, 2026
Bank of New York Mellon Corp History Added to 115,928 441 0.0% 0.0% 35 +4,888 4.4% Q4 2025 Feb 10, 2026
UBS Group AG History Reduced 114,580 436 0.0% 0.0% 36 -143,419 -55.59% Q4 2025 Jan 29, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Added to 111,216 423 0.01% 0.01% 37 +33,000 42.19% Q4 2025 Feb 17, 2026
Nuveen, LLC History No change 105,182 400 0.0% 0.0% 38 0 0.0% Q4 2025 Feb 12, 2026
GSA CAPITAL PARTNERS LLP History Added to 102,039 389 0.03% 0.02% 39 +20,633 25.35% Q4 2025 Feb 06, 2026
Jump Financial, LLC History New 96,074 366 0.0% 40 +96,074 New Q4 2025 Feb 17, 2026
CANADA PENSION PLAN INVESTMENT BOARD History New 94,000 358 0.0% 41 +94,000 New Q4 2025 Feb 17, 2026
TWO SIGMA ADVISERS, LP History Reduced 89,124 339 0.0% 0.0% 42 -163,247 -64.69% Q4 2025 Feb 17, 2026
BARCLAYS PLC History Added to 78,470 298 0.0% 0.0% 43 +7,577 10.69% Q4 2025 Feb 13, 2026
AMERICAN CENTURY COMPANIES INC History Reduced 75,541 287 0.0% 0.0% 44 -15,638 -17.15% Q4 2025 Feb 13, 2026
ALLIANCEBERNSTEIN L.P. History No change 74,530 283 0.0% 0.0% 45 0 0.0% Q4 2025 Feb 17, 2026
Ethic Inc. History Reduced 68,102 259 0.0% 0.0% 46 -7,295 -9.68% Q4 2025 Feb 03, 2026
ACADIAN ASSET MANAGEMENT LLC History New 64,670 245 0.0% 47 +64,670 New Q4 2025 Feb 10, 2026
RHUMBLINE ADVISERS History Reduced 63,565 242 0.0% 0.0% 48 -5,306 -7.7% Q4 2025 Feb 13, 2026
Schonfeld Strategic Advisors LLC History New 61,759 235 0.0% 49 +61,759 New Q4 2025 Feb 17, 2026
Quadrature Capital Ltd History Added to 57,646 219 0.0% 0.0% 50 +38,131 195.39% Q4 2025 Feb 17, 2026
WELLS FARGO & COMPANY/MN History Added to 56,897 216 0.0% 0.0% 51 +18,457 48.02% Q4 2025 Feb 13, 2026
EntryPoint Capital, LLC History New 53,321 203 0.08% 52 +53,321 New Q4 2025 Feb 12, 2026
IEQ CAPITAL, LLC History Reduced 49,150 187 0.0% 0.0% 53 -15,713 -24.22% Q4 2025 Feb 13, 2026
Pale Fire Capital SE History No change 45,218 172 0.01% 0.02% 54 0 0.0% Q4 2025 Feb 13, 2026
Graham Capital Management, L.P. History New 42,255 160 0.0% 55 +42,255 New Q4 2025 Feb 17, 2026
Next Level Private LLC History No change 41,700 158 0.04% 0.06% 56 0 0.0% Q4 2025 Jan 07, 2026
J. Goldman & Co LP History Reduced 40,500 154 0.0% 0.03% 58 -298,224 -88.04% Q4 2025 Feb 17, 2026
BANK OF AMERICA CORP /DE/ History Added to 40,473 154 0.0% 0.0% 57 +12,326 43.79% Q4 2025 Feb 17, 2026
Man Group plc History New 39,225 149 0.0% 59 +39,225 New Q4 2025 Feb 17, 2026
JOURNEY STRATEGIC WEALTH LLC History Reduced 35,836 136 0.0% 0.0% 60 -20 -0.06% Q4 2025 Feb 13, 2026
Creative Planning History Reduced 35,618 135 0.0% 0.0% 61 -28,661 -44.59% Q4 2025 Feb 17, 2026
DEUTSCHE BANK AG\ History Reduced 34,390 131 0.0% 0.0% 62 -20,611 -37.47% Q4 2025 Feb 11, 2026
Velan Capital Investment Management LP History No change 33,000 125 0.07% 0.1% 63 0 0.0% Q4 2025 Feb 13, 2026
CWM, LLC History Reduced 32,631 124 0.0% 0.0% 64 -3,382 -9.39% Q4 2025 Jan 26, 2026
SIMPLEX TRADING, LLC History Reduced 30,522 116 0.0% 0.0% 65 -184,940 -85.83% Q4 2025 Feb 11, 2026
Squarepoint Ops LLC History New 30,416 115 0.0% 66 +30,416 New Q4 2025 Feb 13, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 29,008 111 0.0% 0.0% 67 +6,038 26.29% Q4 2025 Feb 17, 2026
Fi3 FINANCIAL ADVISORS, LLC History Added to 29,322 111 0.03% 0.03% 68 +82 0.28% Q4 2025 Feb 06, 2026
Walleye Trading LLC History No change 25,000 95 0.0% 0.0% 69 0 0.0% Q4 2025 Feb 13, 2026
JPMORGAN CHASE & CO History Reduced 24,864 94 0.0% 0.0% 70 -397 -1.57% Q4 2025 Feb 11, 2026
COMMONWEALTH EQUITY SERVICES, LLC History New 22,848 87 0.0% 71 +22,848 New Q4 2025 Feb 12, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 22,547 85 0.0% 0.0% 72 +704 3.22% Q4 2025 Feb 17, 2026
Connor, Clark & Lunn Investment Management Ltd. History New 21,070 80 0.0% 73 +21,070 New Q4 2025 Feb 10, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 20,968 79 0.0% 0.0% 74 -252 -1.19% Q4 2025 Feb 10, 2026
Invesco Ltd. History Added to 18,401 70 0.0% 0.0% 75 +644 3.63% Q4 2025 Feb 19, 2026
AXQ CAPITAL, LP History Reduced 17,655 67 0.02% 0.05% 76 -20,116 -53.26% Q4 2025 Feb 10, 2026
COLDSTREAM CAPITAL MANAGEMENT INC History Reduced 16,334 62 0.0% 0.0% 77 -1,199 -6.84% Q4 2025 Feb 09, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History New 15,952 60 0.0% 78 +15,952 New Q4 2025 Feb 13, 2026
SG Americas Securities, LLC History New 15,757 60 0.0% 79 +15,757 New Q4 2025 Jan 09, 2026
Cherry Tree Wealth Management, LLC History Added to 15,264 58 0.01% 0.01% 80 +2,000 15.08% Q4 2025 Feb 10, 2026
B.O.S.S. Retirement Advisors, LLC History Added to 14,439 55 0.02% 0.01% 81 +1,720 13.52% Q4 2025 Feb 02, 2026
China Universal Asset Management Co., Ltd. History Reduced 13,947 53 0.0% 0.0% 82 -1,056 -7.04% Q4 2025 Jan 29, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History Reduced 15,614 52 0.0% 0.0% 83 -2,634 -14.43% Q4 2025 Jan 08, 2026
Police & Firemen's Retirement System of New Jersey History No change 13,726 52 0.0% 0.0% 84 0 0.0% Q4 2025 Feb 13, 2026
MetLife Investment Management, LLC History Reduced 13,597 51 0.0% 0.0% 85 -12,110 -47.11% Q4 2025 Feb 12, 2026
Keystone Financial Group History New 13,000 49 0.0% 87 +13,000 New Q4 2025 Feb 06, 2026
FMR LLC History Reduced 12,880 49 0.0% 0.0% 86 -1,473 -10.26% Q4 2025 Feb 17, 2026
ProShare Advisors LLC History Added to 12,623 48 0.0% 0.0% 88 +1,535 13.84% Q4 2025 Feb 06, 2026
TWO SIGMA SECURITIES, LLC History New 12,392 47 0.01% 90 +12,392 New Q4 2025 Feb 17, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 12,553 47 0.0% 0.0% 89 +2,407 23.72% Q4 2025 Feb 10, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History No change 10,867 41 0.0% 0.0% 91 0 0.0% Q4 2025 Feb 17, 2026
SEI INVESTMENTS CO History No change 10,573 40 0.0% 0.0% 92 0 0.0% Q4 2025 Feb 13, 2026
Pallas Capital Advisors LLC History Reduced 10,168 38 0.0% 0.0% 94 -608 -5.64% Q4 2025 Jan 14, 2026
OPPENHEIMER & CO INC History No change 10,000 38 0.0% 0.0% 93 0 0.0% Q4 2025 Feb 02, 2026
STRS OHIO History No change 7,900 30 0.0% 0.0% 95 0 0.0% Q4 2025 Feb 02, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 6,619 25 0.0% 0.0% 96 0 0.0% Q4 2025 Feb 12, 2026
Tower Research Capital LLC (TRC) History Added to 6,532 24 0.0% 0.0% 98 +2,245 52.37% Q4 2025 Feb 17, 2026
CITIGROUP INC History Added to 6,488 24 0.0% 0.0% 97 +1,213 23.0% Q4 2025 Feb 13, 2026
Russell Investments Group, Ltd. History Added to 5,917 22 0.0% 0.0% 99 +1,069 22.05% Q4 2025 Feb 17, 2026
Legal & General Group Plc History Added to 4,854 18 0.0% 0.0% 100 +243 5.27% Q4 2025 Feb 09, 2026
Solstein Capital, LLC History No change 4,477 17 0.01% 0.0% 101 0 0.0% Q4 2025 Feb 13, 2026
Mirae Asset Global Investments Co., Ltd. History Added to 4,159 15 0.0% 0.0% 103 +850 25.69% Q4 2025 Jan 26, 2026
Ameritas Investment Partners, Inc. History No change 4,121 15 0.0% 0.0% 102 0 0.0% Q4 2025 Feb 11, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Added to 2,992 11 0.0% 0.0% 104 +356 13.51% Q4 2025 Feb 17, 2026
Farther Finance Advisors, LLC History No change 3,000 11 0.0% 0.0% 105 0 0.0% Q4 2025 Jan 23, 2026
Sterling Capital Management LLC History Reduced 2,802 10 0.0% 0.0% 106 -442 -13.63% Q4 2025 Feb 13, 2026
Caitong International Asset Management Co., Ltd History New 2,376 9 0.0% 107 +2,376 New Q4 2025 Mar 03, 2026
Strategic Advocates LLC History No change 2,350 9 0.0% 0.0% 108 0 0.0% Q4 2025 Feb 11, 2026
QUADRANT CAPITAL GROUP LLC History New 1,753 6 0.0% 112 +1,753 New Q4 2025 Feb 13, 2026
ROYAL BANK OF CANADA History New 1,501 6 0.0% 111 +1,501 New Q4 2025 Feb 17, 2026
Global Retirement Partners, LLC History Added to 1,673 6 0.0% 0.0% 113 +253 17.82% Q4 2025 Feb 06, 2026
GF FUND MANAGEMENT CO. LTD. History Reduced 1,680 6 0.0% 0.0% 114 -161 -8.75% Q4 2025 Jan 27, 2026
AMALGAMATED BANK History Added to 1,527 6 0.0% 0.0% 109 +75 5.17% Q4 2025 Feb 05, 2026
NISA INVESTMENT ADVISORS, LLC History No change 1,638 6 0.0% 0.0% 110 0 0.0% Q4 2025 Jan 15, 2026
Clearstead Advisors, LLC History Reduced 1,500 5 0.0% 0.0% 115 -1,210 -44.65% Q4 2025 Feb 09, 2026
GAMMA Investing LLC History New 1,215 4 0.0% 118 +1,215 New Q4 2025 Jan 05, 2026
OSAIC HOLDINGS, INC. History Added to 1,211 4 0.0% 0.0% 117 +211 21.1% Q4 2025 Feb 17, 2026
US BANCORP \DE\ History Reduced 1,175 4 0.0% 0.0% 116 -95 -7.48% Q4 2025 Jan 30, 2026
EverSource Wealth Advisors, LLC History Reduced 832 3 0.0% 0.0% 119 -93 -10.05% Q4 2025 Feb 06, 2026
Bell Investment Advisors, Inc History New 773 2 0.0% 120 +773 New Q4 2025 Feb 24, 2026
True Wealth Design, LLC History Added to 544 2 0.0% 0.0% 121 +8 1.49% Q4 2025 Jan 08, 2026
RA CAPITAL MANAGEMENT, L.P. History Closed out 0 0 0.24% -6,045,351 -100.0% Q3 2025 Nov 14, 2025
Opaleye Management Inc. History Closed out 0 0 1.49% -3,720,867 -100.0% Q3 2025 Nov 14, 2025
Logos Global Management LP History Closed out 0 0 0.72% -2,500,000 -100.0% Q3 2025 Nov 14, 2025
ADAGE CAPITAL PARTNERS GP, L.L.C. History Closed out 0 0 0.01% -1,900,000 -100.0% Q3 2025 Nov 14, 2025
Hudson Bay Capital Management LP History Closed out 0 0 0.01% -1,278,649 -100.0% Q3 2025 Dec 15, 2025
Ikarian Capital, LLC History Closed out 0 0 0.18% -548,400 -100.0% Q3 2025 Nov 14, 2025
MANGROVE PARTNERS IM, LLC History Closed out 0 0 0.11% -442,236 -100.0% Q3 2025 Nov 14, 2025
BALYASNY ASSET MANAGEMENT L.P. History Closed out 0 0 0.0% -286,533 -100.0% Q3 2025 Nov 14, 2025
SPHERA FUNDS MANAGEMENT LTD. History Closed out 0 0 0.18% -260,385 -100.0% Q3 2025 Nov 14, 2025
BOOTHBAY FUND MANAGEMENT, LLC History Closed out 0 0 0.01% -199,600 -100.0% Q3 2025 Nov 14, 2025
GROUP ONE TRADING LLC History Closed out 0 0 0.0% -133,701 -100.0% Q3 2025 Nov 12, 2025
CANTOR FITZGERALD, L. P. History Closed out 0 0 0.0% -127,500 -100.0% Q3 2025 Feb 17, 2026
Massar Capital Management, LP History Closed out 0 0 0.05% -117,000 -100.0% Q3 2025 Nov 14, 2025
Virtu Financial LLC History Closed out 0 0 0.02% -102,680 -100.0% Q3 2025 Nov 14, 2025
Walleye Capital LLC History Closed out 0 0 0.0% -54,400 -100.0% Q3 2025 Nov 14, 2025
MONIMUS CAPITAL MANAGEMENT, LP History Closed out 0 0 0.1% -49,073 -100.0% Q3 2025 Nov 14, 2025
DLD Asset Management, LP History Closed out 0 0 0.01% -44,300 -100.0% Q3 2025 Nov 14, 2025
PRUDENTIAL FINANCIAL INC History Closed out 0 0 0.0% -38,091 -100.0% Q3 2025 Nov 13, 2025
Stonepine Capital Management, LLC History Closed out 0 0 0.07% -25,000 -100.0% Q3 2025 Nov 13, 2025
Ellevest, Inc. History Closed out 0 0 0.01% -18,828 -100.0% Q3 2025 Nov 14, 2025
Arax Advisory Partners History Reduced 10 0 0.0% -10,915 -99.91% Q4 2025 Feb 13, 2026
SIGNATUREFD, LLC History Reduced 105 0 0.0% -578 -84.63% Q4 2025 Jan 20, 2026
Optiver Holding B.V. History Closed out 0 0 0.0% -560 -100.0% Q3 2025 Nov 10, 2025
Rise Advisors, LLC History Closed out 0 0 0.0% -381 -100.0% Q3 2025 Oct 08, 2025
Parallel Advisors, LLC History New 193 0 +193 New Q4 2025 Feb 11, 2026
Rockefeller Capital Management L.P. History New 148 0 +148 New Q4 2025 Mar 16, 2026
IFP Advisors, Inc History Added to 215 0 +42 24.28% Q4 2025 Feb 06, 2026
SBI Securities Co., Ltd. History Reduced 45 0 -37 -45.12% Q4 2025 Feb 03, 2026
Sunbelt Securities, Inc. History Added to 26 0 +22 550.0% Q4 2025 Feb 20, 2026
ROTHSCHILD INVESTMENT LLC History Added to 124 0 +14 12.73% Q4 2025 Feb 10, 2026
Larson Financial Group LLC History Closed out 0 0 -4 -100.0% Q3 2025 Nov 14, 2025
MAI Capital Management History New 1 0 +1 New Q4 2025 Feb 13, 2026
Allworth Financial LP History New 1 0 +1 New Q4 2025 Feb 05, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 17 0 0 0.0% Q4 2025 Feb 06, 2026
Physician Wealth Advisors, Inc. History No change 233 0 0 0.0% Q4 2025 Jan 29, 2026
Rialto Wealth Management, LLC History No change 260 0 0 0.0% Q4 2025 Jan 12, 2026