Larimar Therapeutics
Develops nomlabofusp to deliver frataxin in Friedreich's ataxia.
$4.09
After-hours close+0.09 (+2.25%)
At close$4.00(−1.23%)
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Breakdown13F · Form 4
Institutions 84.48%87.76M sharesInsiders 7.38%7.67M sharesOther 8.14%8.46M shares
Shares outstanding 103.88M · Float 59.94M · 57.7% free float
Institutions13F, as of Mar 31, 2026
170 holders · 87.76M shares · 43 new positions · 101 increased · 42 reduced · 17 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Deerfield Management Company, L.P. (Series C) | 35.61M | 34.28% | +5.00M | May 15, 2026 |
| Blue Owl Capital Holdings LP | 7.12M | 6.85% | +296.3K | May 14, 2026 |
| BlackRock, Inc. | 3.75M | 3.61% | +70.6K | May 13, 2026 |
| Millennium Management LLC | 3.63M | 3.49% | −1.58M | May 15, 2026 |
| Aigh Capital Management LLC | 3.00M | 2.89% | +1.00M | Apr 30, 2026 |
| Driehaus Capital Management LLC | 2.93M | 2.82% | +2.40M | May 15, 2026 |
| Vanguard Capital Management LLC | 2.87M | 2.76% | +2.87Mnew | May 15, 2026 |
| Dafna Capital Management LLC | 2.03M | 1.95% | +1.09M | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Deerfield Management Company, L.P.incl. Deerfield Partners, L.P., Deerfield Healthcare Innovations Fund, L.P. +7 more | 34.41% | 35.67M | 13D | Mar 2, 2026 ↗ |
| Blue Owl Capital Holdings LP | 9.99% | 10.74M | 13G | May 14, 2026 ↗ |
| Goldman Sachs & Co. LLCincl. The Goldman Sachs Group, Inc. | 7.00% | 4.49M | Nov 6, 2024 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| James E. Flynn | director, 10 percent owner, other: * Director by Deputization | 6.21M | 5.98% | Mar 2, 2026 |
| Thomas Edward Hamilton | director | 714.8K | 0.69% | Jul 8, 2026 |
| Carole Ben-Maimon | director, officer: President and CEO | 368.3K | 0.35% | Jan 27, 2026 |
| Michael Celano | officer: Chief Financial Officer | 215.8K | 0.21% | Jan 27, 2026 |
| Gopi Shankar | officer: Chief Development Officer | 76.4K | 0.07% | Jan 27, 2026 |
| Russell Clayton | officer: Chief Medical Officer | 71.4K | 0.07% | Jan 27, 2026 |
| Frank E. Thomas | director | 7.0K | 0.01% | Mar 2, 2026 |
| Jeffrey W. Sherman | director | 5.0K | 0.00% | Mar 2, 2026 |
2 ten-percent owners hold 9 shares by Form 4, outside the officers-and-directors figure above · 12 people have not refiled in the last 18 months (3.58M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 6, 2026 | Thomas Edward Hamiltondirector | Purchase | 50,000 | $3.34 | 714,798 |
| Feb 27, 2026 | Jeffrey W. Shermandirector | Purchase | 5,000 | $5.00 | 5,000 |
| Feb 27, 2026 | Frank E. Thomasdirector | Purchase | 5,000 | $5.00 | 7,000 |
| Feb 27, 2026 | Thomas Edward Hamiltondirector | Purchase | 100,000 | $5.00 | 664,798 |
| Feb 27, 2026 | James E. Flynndirector, 10 percent owner, other: * Director by Deputization | Purchase · 4 lots | 5,000,000 | $5.00 | 10,622,957 |
CongressHouse and Senate disclosures
Not reported.