Larimar Therapeutics, Inc.
LRMR- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001374690
In the last 90 days, Larimar Therapeutics, Inc. insiders filed 1 open-market purchase and 0 sales; 163 institutions reported holding it in 13F filings for Q2 2026, worth $291.4M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Larimar Therapeutics, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 136
- +3 vs. Q3 2025
- Shares held
- 72.7M
- −12.4M (−14.5%) vs. Q3 2025
- Total value
- $277.0M
- +$3.61M (+1.3%) vs. Q3 2025
- New holders
- 22
- 45 more added
- Sold out
- 19
- 44 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting LRMR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 163 | $291.4M |
| Q1 2026 | 162 | $394.8M |
| Q4 2025 | 136 | $277.0M |
| Q3 2025 | 136 | $274.8M |
| Q2 2025 | 116 | $180.1M |
| Q1 2025 | 103 | $131.9M |
| Q4 2024 | 116 | $245.5M |
| Q3 2024 | 123 | $421.3M |
| Q2 2024 | 107 | $473.5M |
| Q1 2024 | 104 | $482.8M |
| Q4 2023 | 69 | $179.6M |
| Q3 2023 | 65 | $153.0M |
| Q2 2023 | 65 | $120.2M |
| Q1 2023 | 69 | $174.2M |
| Q4 2022 | 48 | $160.1M |
| Q3 2022 | 59 | $123.9M |
| Q2 2022 | 40 | $28.2M |
| Q1 2022 | 45 | $61.8M |
| Q4 2021 | 49 | $157.2M |
| Q3 2021 | 54 | $167.5M |
| Q2 2021 | 45 | $142.8M |
| Q1 2021 | 57 | $206.1M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Larimar Therapeutics, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of New York Mellon Corp | 115,928 | $441.7K | 0.00% | +4,888+4.4% | Added |
| XTX Topco Ltd | 118,938 | $453.2K | 0.01% | +66,569+127.1% | Added |
| Morgan Stanley | 135,983 | $518.1K | 0.00% | +42,980+46.2% | Added |
| Charles Schwab Investment Management Inc | 162,113 | $617.7K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 185,689 | $707.5K | 0.05% | −50,000−21.2% | Reduced |
| Cerity Partners LLC | 234,737 | $894.3K | 0.00% | −4,409−1.8% | Reduced |
| Susquehanna International Group, LLP | 252,783 | $963.1K | 0.00% | +181,360+253.9% | Added |
| Gem Investment Advisors, LLC | 280,860 | $1.07M | 1.01% | +280,860 | New |
| Two Sigma Investments, LP | 295,183 | $1.12M | 0.00% | +160,454+119.1% | Added |
| Renaissance Technologies LLC | 297,266 | $1.13M | 0.00% | −561,376−65.4% | Reduced |
| Marex Group plc | 312,000 | $1.19M | 0.01% | +171,000+121.3% | Added |
| Dimensional Fund Advisors LP | 327,494 | $1.25M | 0.00% | +271,237+482.1% | Added |
| ExodusPoint Capital Management, LP | 344,246 | $1.31M | 0.01% | +181,425+111.4% | Added |
| Northern Trust Corp | 356,775 | $1.36M | 0.00% | −21,532−5.7% | Reduced |
| Federated Hermes, Inc. | 358,907 | $1.37M | 0.00% | +356,512+14,885.7% | Added |
| Caption Management, LLC | 415,294 | $1.58M | 0.07% | −897,058−68.4% | Reduced |
| D. E. Shaw & Co., Inc. | 437,399 | $1.67M | 0.00% | +437,399 | New |
| AQR Capital Management LLC | 502,251 | $1.91M | 0.00% | −60,152−10.7% | Reduced |
| Driehaus Capital Management LLC | 535,464 | $2.04M | 0.01% | 00.0% | Unchanged |
| Verition Fund Management LLC | 567,683 | $2.16M | 0.01% | 00.0% | Unchanged |
| Jane Street Group, LLC | 678,942 | $2.59M | 0.00% | +256,230+60.6% | Added |
| Woodline Partners LP | 800,850 | $3.05M | 0.01% | −822,000−50.7% | Reduced |
| State Street Corp | 911,925 | $3.47M | 0.00% | +20,056+2.2% | Added |
| Alyeska Investment Group, L.P. | 927,821 | $3.53M | 0.01% | −959,348−50.8% | Reduced |
| DAFNA Capital Management LLC | 939,164 | $3.58M | 0.83% | −88,600−8.6% | Reduced |
| Geode Capital Management, LLC | 1,093,323 | $4.17M | 0.00% | +70,796+6.9% | Added |
| Goldman Sachs Group Inc | 1,347,215 | $5.13M | 0.00% | −227,786−14.5% | Reduced |
| Citadel Advisors LLC | 1,366,750 | $5.21M | 0.00% | −110,756−7.5% | Reduced |
| Point72 Asset Management, L.P. | 1,461,028 | $5.57M | 0.01% | +237,162+19.4% | Added |
| AIGH Capital Management LLC | 2,000,000 | $7.62M | 2.25% | +1,000,000+100.0% | Added |
| Vanguard Group Inc | 3,046,216 | $11.6M | 0.00% | −41,624−1.3% | Reduced |
| RTW Investments, LP | 3,125,000 | $11.9M | 0.12% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,681,603 | $14.0M | 0.00% | +342,411+10.3% | Added |
| Millennium Management LLC | 5,206,364 | $19.8M | 0.01% | +309,533+6.3% | Added |
| Blue Owl Capital Holdings LP | 6,823,690 | $26.0M | 8.02% | +970,650+16.6% | Added |
| Deerfield Management Company, L.P. (Series C) | 30,606,974 | $116.6M | 1.49% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 0 | $0 | 0.00% | −6,045,351−100.0% | Sold out |
| Opaleye Management Inc. | 0 | $0 | 0.00% | −3,720,867−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −1,900,000−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −442,236−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −403,449−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −286,533−100.0% | Sold out |
| Sphera Funds Management Ltd. | 0 | $0 | 0.00% | −260,385−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −133,701−100.0% | Sold out |
| Cantor Fitzgerald, L. P. | 0 | $0 | 0.00% | −127,500−100.0% | Sold out |
| Massar Capital Management, LP | 0 | $0 | 0.00% | −117,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −102,680−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −54,400−100.0% | Sold out |
| Monimus Capital Management, LP | 0 | $0 | 0.00% | −49,073−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −38,091−100.0% | Sold out |
| Stonepine Capital Management, LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −18,828−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −560−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −381−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| HAP Trading, LLC | – | – | – | – | Not filed |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Point72 (DIFC) Ltd | – | – | – | – | Not filed |