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, Q3 2025
Institutional positions in Larimar Therapeutics, Inc. as of Sep 30, 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
- +21 vs. Q2 2025
- Shares held
- 85.5M
- +23.4M (+37.7%) vs. Q2 2025
- Total value
- $274.8M
- +$95.4M (+53.2%) vs. Q2 2025
- New holders
- 30
- 60 more added
- Sold out
- 9
- 26 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Larimar Therapeutics, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| J. Goldman & Co LP | 203,724 | $658.0K | 0.02% | +203,724 | New |
| Simplex Trading, LLC | 215,462 | $695.0K | 0.02% | +75,038+53.4% | Added |
| ADAR1 Capital Management, LLC | 235,689 | $761.3K | 0.08% | −1,916−0.8% | Reduced |
| Cerity Partners LLC | 239,146 | $772.4K | 0.00% | +18,945+8.6% | Added |
| Two Sigma Advisers, LP | 252,371 | $815.2K | 0.00% | −894,553−78.0% | Reduced |
| UBS Group AG | 257,999 | $833.3K | 0.00% | +149,662+138.1% | Added |
| Sphera Funds Management Ltd. | 260,385 | $841.0K | 0.20% | +63,750+32.4% | Added |
| HAP Trading, LLC | 262,776 | $848.8K | 0.23% | +262,776 | New |
| Balyasny Asset Management LLC | 286,533 | $925.5K | 0.00% | +286,533 | New |
| Northern Trust Corp | 378,307 | $1.22M | 0.00% | +34,326+10.0% | Added |
| Hudson Bay Capital Management LP | 403,449 | $1.30M | 0.01% | +174,688+76.4% | Added |
| Jane Street Group, LLC | 422,712 | $1.37M | 0.00% | +412,179+3,913.2% | Added |
| Mangrove Partners | 442,236 | $1.43M | 0.12% | −327,997−42.6% | Reduced |
| Driehaus Capital Management LLC | 535,464 | $1.73M | 0.01% | 00.0% | Unchanged |
| AQR Capital Management LLC | 562,403 | $1.82M | 0.00% | +133,915+31.3% | Added |
| Verition Fund Management LLC | 567,683 | $1.83M | 0.01% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 858,642 | $2.77M | 0.00% | +296,900+52.9% | Added |
| State Street Corp | 891,869 | $2.88M | 0.00% | +32,901+3.8% | Added |
| AIGH Capital Management LLC | 1,000,000 | $3.23M | 1.13% | +1,000,000 | New |
| Geode Capital Management, LLC | 1,022,527 | $3.30M | 0.00% | +118,102+13.1% | Added |
| DAFNA Capital Management LLC | 1,027,764 | $3.32M | 0.82% | +656,330+176.7% | Added |
| Point72 Asset Management, L.P. | 1,223,866 | $3.95M | 0.01% | +1,223,866 | New |
| Caption Management, LLC | 1,312,352 | $4.24M | 0.25% | +623,062+90.4% | Added |
| Citadel Advisors LLC | 1,477,506 | $4.77M | 0.00% | +141,251+10.6% | Added |
| Goldman Sachs Group Inc | 1,575,001 | $5.09M | 0.00% | +1,443,379+1,096.6% | Added |
| Woodline Partners LP | 1,622,850 | $5.24M | 0.02% | +1,000,168+160.6% | Added |
| Alyeska Investment Group, L.P. | 1,887,169 | $6.10M | 0.02% | −188,713−9.1% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,900,000 | $6.14M | 0.01% | +1,900,000 | New |
| Vanguard Group Inc | 3,087,840 | $9.97M | 0.00% | +945,809+44.2% | Added |
| RTW Investments, LP | 3,125,000 | $10.1M | 0.12% | +3,125,000 | New |
| Opaleye Management Inc. | 3,720,867 | $10.6M | 1.49% | −389,133−9.5% | Reduced |
| BlackRock, Inc. | 3,339,192 | $10.8M | 0.00% | +299,212+9.8% | Added |
| Millennium Management LLC | 4,896,831 | $15.8M | 0.01% | +1,241,642+34.0% | Added |
| Blue Owl Capital Holdings LP | 5,853,040 | $18.9M | 5.87% | +925,000+18.8% | Added |
| Ra Capital Management, L.P. | 6,045,351 | $19.5M | 0.24% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 30,606,974 | $98.9M | 1.52% | +9,375,000+44.2% | Added |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −307,198−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −256,861−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −69,799−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −31,515−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −29,030−100.0% | Sold out |
| Keystone Financial Group | 0 | $0 | 0.00% | −13,000−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −12,092−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −4,121−100.0% | Sold out |
| HAP Trading, LLC | – | – | – | – | Not filed |