Larimar Therapeutics, Inc. (LRMR) — Institutional Holders, Q2 2026
164 institutional investment managers reported a LRMR position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $292.7M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
LRMR in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Defilade Capital Management, L.P.New · +3,670,135 sh+$11.2M
- Blue Owl CapitalAdded · +2,043,150 sh+$6.2M
- BlackRockAdded · +1,925,835 sh+$5.9M
- AQR CAPITAL MANAGEMENTAdded · +1,553,897 sh+$4.7M
- MARSHALL WACE, LLPAdded · +1,078,994 sh+$3.3M
Biggest sellers
- AIGH Capital ManagementSold out · -3,000,000 sh-$9.2M
- MILLENNIUM MANAGEMENTTrimmed · -2,292,241 sh-$7.0M
- Deep Track CapitalSold out · -1,500,000 sh-$4.6M
- Point72 Asset Management, L.P.Trimmed · -912,579 sh-$2.8M
- Soleus Capital Management, L.P.Trimmed · -878,858 sh-$2.7M
LRMR 13F holders ranked 1–100 of 164
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)#1 · 35,606,974 sh | 35,606,974 | $108.6M | 1.13% | 0.0% |
| 2 | Blue Owl Capital#2 · 9,163,157 sh | 9,163,157 | $27.9M | 4.21% | +13.2% |
| 3 | BlackRock#3 · 5,678,035 sh | 5,678,035 | $17.3M | <0.01% | +51.3% |
| 4 | Defilade Capital Management, L.P.#4 · 3,670,135 sh | 3,670,135 | $11.2M | 1.50% | New |
| 5 | DRIEHAUS CAPITAL MANAGEMENT#5 · 3,163,423 sh | 3,163,423 | $9.6M | 0.06% | +7.8% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 2,974,901 sh | 2,974,901 | $9.1M | <0.01% | +3.8% |
| 7 | RTW INVESTMENTS#7 · 2,565,999 sh | 2,565,999 | $7.8M | 0.07% | +71.1% |
| 8 | AQR CAPITAL MANAGEMENT#8 · 2,371,414 sh | 2,371,414 | $7.2M | <0.01% | +190.1% |
| 9 | MARSHALL WACE, LLP#9 · 2,012,458 sh | 2,012,458 | $6.1M | <0.01% | +115.6% |
| 10 | DAFNA Capital Management#10 · 2,008,164 sh | 2,008,164 | $6.1M | 1.17% | -1.0% |
| 11 | GOLDMAN SACHS GROUP#11 · 1,752,910 sh | 1,752,910 | $5.3M | <0.01% | +12.3% |
| 12 | GEODE CAPITAL MANAGEMENT#12 · 1,679,003 sh | 1,679,003 | $5.1M | <0.01% | +51.4% |
| 13 | Qube Research & Technologies Ltd#13 · 1,641,042 sh | 1,641,042 | $5.0M | <0.01% | +93.6% |
| 14 | CITADEL ADVISORS#14 · 1,456,825 sh | 1,456,825 | $4.4M | <0.01% | +180.6% |
| 15 | STATE STREET#15 · 1,411,804 sh | 1,411,804 | $4.3M | <0.01% | +54.9% |
| 16 | VANGUARD PORTFOLIO MANAGEMENT#16 · 1,403,172 sh | 1,403,172 | $4.3M | <0.01% | +245.1% |
| 17 | Woodline Partners#17 · 1,400,850 sh | 1,400,850 | $4.3M | 0.01% | 0.0% |
| 18 | MILLENNIUM MANAGEMENT#18 · 1,333,037 sh | 1,333,037 | $4.1M | <0.01% | -63.2% |
| 19 | DIMENSIONAL FUND ADVISORS#19 · 961,083 sh | 961,083 | $2.9M | <0.01% | +20.4% |
| 20 | FMR#20 · 937,368 sh | 937,368 | $2.9M | <0.01% | +1374.5% |
| 21 | SPHERA FUNDS MANAGEMENT LTD.#21 · 926,004 sh | 926,004 | $2.8M | 0.37% | New |
| 22 | Nuveen#22 · 895,304 sh | 895,304 | $2.7M | <0.01% | +32.7% |
| 23 | Alyeska Investment Group, L.P.#23 · 617,211 sh | 617,211 | $1.9M | <0.01% | 0.0% |
| 24 | NORTHERN#24 · 550,266 sh | 550,266 | $1.7M | <0.01% | +46.2% |
| 25 | VANGUARD FIDUCIARY#25 · 448,168 sh | 448,168 | $1.4M | <0.01% | +54.7% |
| 26 | Fi3 FINANCIAL ADVISORS#26 · 2,915 sh | 2,915 | $1.3M | 0.30% | -90.1% |
| 27 | LOS ANGELES CAPITAL MANAGEMENT#27 · 399,542 sh | 399,542 | $1.2M | <0.01% | +2117.0% |
| 28 | Hennion & Walsh Asset Management#28 · 396,726 sh | 396,726 | $1.2M | — | New |
| 29 | SummitTX Capital, L.P.#29 · 352,284 sh | 352,284 | $1.1M | 0.03% | -7.2% |
| 30 | JPMORGAN CHASE#30 · 328,015 sh | 328,015 | $1.0M | <0.01% | -1.1% |
| 31 | Gem Investment Advisors#31 · 319,519 sh | 319,519 | $974.5K | 0.60% | -62.6% |
| 32 | Burkehill Global Management#32 · 300,000 sh | 300,000 | $915.0K | 0.03% | 0.0% |
| 33 | RENAISSANCE TECHNOLOGIES#33 · 297,443 sh | 297,443 | $907.2K | <0.01% | -59.8% |
| 34 | ADAR1 Capital Management#34 · 272,745 sh | 272,745 | $831.9K | 0.04% | +417.1% |
| 35 | Cerity Partners#35 · 271,582 sh | 271,582 | $828.3K | <0.01% | +9.5% |
| 36 | TWO SIGMA INVESTMENTS#36 · 236,133 sh | 236,133 | $720.2K | <0.01% | -50.4% |
| 37 | Seven Fleet Capital Management#37 · 230,921 sh | 230,921 | $704.3K | 0.12% | -10.0% |
| 38 | CHARLES SCHWAB INVESTMENT MANAGEMENT#38 · 206,969 sh | 206,969 | $631.3K | <0.01% | +42.4% |
| 39 | IEQ CAPITAL#39 · 203,363 sh | 203,363 | $620.3K | <0.01% | +78.3% |
| 40 | Caption Management#40 · 193,018 sh | 193,018 | $588.7K | <0.01% | -69.6% |
| 41 | Soleus Capital Management, L.P.#41 · 188,102 sh | 188,102 | $573.7K | 0.02% | -82.4% |
| 42 | JACOBS LEVY EQUITY MANAGEMENT#42 · 170,575 sh | 170,575 | $520.3K | <0.01% | +0.8% |
| 43 | Susquehanna Portfolio Strategies#43 · 165,156 sh | 165,156 | $503.7K | <0.01% | New |
| 44 | ALLIANCEBERNSTEIN L.P.#44 · 108,220 sh | 108,220 | $487.0K | <0.01% | +45.2% |
| 45 | DIADEMA PARTNERS#45 · 146,637 sh | 146,637 | $447.2K | 0.06% | -12.0% |
| 46 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#46 · 144,428 sh | 144,428 | $440.5K | 0.00% | +3.1% |
| 47 | UBS Group AG#47 · 144,326 sh | 144,326 | $440.2K | <0.01% | +386.0% |
| 48 | Bank of New York Mellon#48 · 138,831 sh | 138,831 | $423.4K | <0.01% | +29.3% |
| 49 | STATE OF WISCONSIN INVESTMENT BOARD#49 · 138,196 sh | 138,196 | $421.5K | <0.01% | +379.9% |
| 50 | Jump Financial#50 · 135,601 sh | 135,601 | $413.6K | <0.01% | -54.8% |
| 51 | Point72 Asset Management, L.P.#51 · 134,806 sh | 134,806 | $411.2K | <0.01% | -87.1% |
| 52 | Invesco Ltd.#52 · 134,483 sh | 134,483 | $410.2K | 0.00% | +584.5% |
| 53 | PRUDENTIAL FINANCIAL#53 · 128,423 sh | 128,423 | $391.7K | <0.01% | +291.6% |
| 54 | Creative Planning#54 · 116,801 sh | 116,801 | $356.2K | <0.01% | +79.6% |
| 55 | Mariner#55 · 114,445 sh | 114,445 | $349.1K | <0.01% | +261.7% |
| 56 | Squarepoint Ops#56 · 113,474 sh | 113,474 | $346.1K | <0.01% | New |
| 57 | Man Group plc#57 · 113,049 sh | 113,049 | $344.8K | <0.01% | New |
| 58 | DEUTSCHE BANK AG\#58 · 96,423 sh | 96,423 | $294.1K | <0.01% | +3.5% |
| 59 | FEDERATED HERMES#59 · 90,850 sh | 90,850 | $277.1K | <0.01% | +48.1% |
| 60 | ExodusPoint Capital Management#60 · 90,413 sh | 90,413 | $275.8K | <0.01% | +241.9% |
| 61 | WEALTH ENHANCEMENT ADVISORY SERVICES#61 · 63,680 sh | 63,680 | $272.6K | — | +94.2% |
| 62 | MORGAN STANLEY#62 · 86,858 sh | 86,858 | $264.9K | 0.00% | -79.4% |
| 63 | CARY STREET PARTNERS FINANCIAL#63 · 85,000 sh | 85,000 | $259.3K | <0.01% | New |
| 64 | JANE STREET GROUP#64 · 73,736 sh | 73,736 | $224.9K | 0.00% | -86.7% |
| 65 | RHUMBLINE ADVISERS#65 · 71,888 sh | 71,888 | $219.2K | <0.01% | +14.7% |
| 66 | MERCER GLOBAL ADVISORS#66 · 68,934 sh | 68,934 | $210.2K | <0.01% | +303.5% |
| 67 | Quantbot Technologies#67 · 68,771 sh | 68,771 | $209.8K | <0.01% | New |
| 68 | WELLS FARGO & COMPANY#68 · 62,103 sh | 62,103 | $189.4K | 0.00% | +207.0% |
| 69 | Connor, Clark & Lunn Investment Management Ltd.#69 · 59,788 sh | 59,788 | $182.4K | <0.01% | -13.5% |
| 70 | CANADA PENSION PLAN INVESTMENT BOARD#70 · 59,700 sh | 59,700 | $182.1K | <0.01% | 0.0% |
| 71 | SIMPLEX TRADING#71 · 58,608 sh | 58,608 | $178.8K | <0.01% | New |
| 72 | ACADIAN ASSET MANAGEMENT#72 · 57,443 sh | 57,443 | $173.0K | <0.01% | -3.4% |
| 73 | XTX Topco Ltd#73 · 55,209 sh | 55,209 | $168.4K | <0.01% | +78.8% |
| 74 | PRICE T ROWE ASSOCIATES#74 · 54,629 sh | 54,629 | $167.0K | 0.00% | +57.1% |
| 75 | CIBC WORLD MARKET#75 · 53,000 sh | 53,000 | $161.7K | <0.01% | 0.0% |
| 76 | WINTON GROUP Ltd#76 · 52,400 sh | 52,400 | $159.8K | <0.01% | New |
| 77 | GSA CAPITAL PARTNERS LLP#77 · 50,078 sh | 50,078 | $153.0K | <0.01% | New |
| 78 | BANK OF AMERICA#78 · 47,603 sh | 47,603 | $145.2K | 0.00% | +0.5% |
| 79 | Pale Fire Capital SE#79 · 43,000 sh | 43,000 | $131.2K | <0.01% | New |
| 80 | Next Level Private#80 · 41,700 sh | 41,700 | $127.2K | — | 0.0% |
| 81 | BRIDGEWAY CAPITAL MANAGEMENT#81 · 41,216 sh | 41,216 | $125.7K | <0.01% | 0.0% |
| 82 | MetLife Investment Management#82 · 39,798 sh | 39,798 | $121.4K | <0.01% | +49.2% |
| 83 | HighTower Advisors#83 · 37,698 sh | 37,698 | $115.0K | <0.01% | -2.0% |
| 84 | Persistent Asset Partners Ltd#84 · 37,374 sh | 37,374 | $114.0K | 0.03% | -11.3% |
| 85 | CITIGROUP#85 · 35,636 sh | 35,636 | $108.7K | 0.00% | -1.3% |
| 86 | Velan Capital Investment Management#86 · 33,000 sh | 33,000 | $100.7K | 0.06% | 0.0% |
| 87 | MIRAE ASSET GLOBAL ETFS Ltd.#87 · 30,652 sh | 30,652 | $93.5K | <0.01% | +32.7% |
| 88 | Russell Investments Group, Ltd.#88 · 27,364 sh | 27,364 | $83.5K | <0.01% | +662.4% |
| 89 | STRS OHIO#89 · 26,500 sh | 26,500 | $80.8K | <0.01% | +22.1% |
| 90 | AMERICAN CENTURY COMPANIES#90 · 26,467 sh | 26,467 | $80.7K | 0.00% | -65.9% |
| 91 | BARCLAYS PLC#91 · 25,957 sh | 25,957 | $79.2K | 0.00% | +58.5% |
| 92 | CAPTRUST FINANCIAL ADVISORS#92 · 25,211 sh | 25,211 | $76.9K | <0.01% | New |
| 93 | COMMONWEALTH EQUITY SERVICES#93 · 23,067 sh | 23,067 | $70.3K | <0.01% | -6.9% |
| 94 | Corient Private Wealth#94 · 22,675 sh | 22,675 | $69.2K | <0.01% | New |
| 95 | Engineers Gate Manager#95 · 22,557 sh | 22,557 | $68.8K | <0.01% | New |
| 96 | Vanguard Global Advisers#96 · 21,047 sh | 21,047 | $64.2K | 0.00% | -58.8% |
| 97 | Walleye Trading#97 · 20,000 sh | 20,000 | $61.0K | <0.01% | 0.0% |
| 98 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#98 · 19,520 sh | 19,520 | $59.5K | 0.00% | +45.2% |
| 99 | Brevan Howard Capital Management#99 · 19,504 sh | 19,504 | $59.5K | <0.01% | New |
| 100 | Vanguard Personalized Indexing Management#100 · 18,549 sh | 18,549 | $56.6K | <0.01% | +66.5% |
Funds that sold out of LRMR in Q2 2026 (29)
Held LRMR at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| AIGH Capital Management3,000,000 sh | 3,000,000 | $13.5M |
| Deep Track Capital1,500,000 sh | 1,500,000 | $6.8M |
| D. E. Shaw575,624 sh | 575,624 | $2.6M |
| ADAGE CAPITAL PARTNERS GP, L.L.C.300,000 sh | 300,000 | $1.4M |
| WELLINGTON MANAGEMENT GROUP LLP136,530 sh | 136,530 | $614.4K |
| SEVEN GRAND MANAGERS125,000 sh | 125,000 | $562.5K |
| HRT FINANCIAL121,885 sh | 121,885 | $548.0K |
| Marex Group plc82,000 sh | 82,000 | $369.0K |
| AXQ CAPITAL52,973 sh | 52,973 | $238.4K |
| Virtu Financial51,791 sh | 51,791 | $233.0K |
| EntryPoint Capital44,479 sh | 44,479 | $200.2K |
| INCEPTIONR44,006 sh | 44,006 | $198.0K |
| Schonfeld Strategic Advisors38,090 sh | 38,090 | $171.4K |
| J. Goldman33,756 sh | 33,756 | $151.9K |
| MIRABELLA FINANCIAL SERVICES LLP24,565 sh | 24,565 | $110.5K |
| Dynamic Technology Lab Private Ltd24,009 sh | 24,009 | $108.0K |
| Headlands Technologies22,925 sh | 22,925 | $103.2K |
| FRED ALGER MANAGEMENT21,267 sh | 21,267 | $95.7K |
| Grantham, Mayo, Van Otterloo13,065 sh | 13,065 | $58.8K |
| nVerses Capital13,004 sh | 13,004 | $58.5K |
| QUADRANT CAPITAL GROUP3,952 sh | 3,952 | $57.9K |
| B.O.S.S. Retirement Advisors12,154 sh | 12,154 | $54.7K |
| FOX RUN MANAGEMENT, L.L.C.11,119 sh | 11,119 | $47.9K |
| TWO SIGMA SECURITIES10,400 sh | 10,400 | $46.8K |
| Root Financial Partners1,631 sh | 1,631 | $7.3K |
| SUMMIT SECURITIES GROUP794 sh | 794 | $3.6K |
| Parallel Advisors193 sh | 193 | $869.00 |
| Wealth Preservation Advisors10 sh | 10 | $45.00 |
| TWIN PEAKS WEALTH ADVISORS2 sh | 2 | $9.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.