Larimar Therapeutics
LRMR · NASDAQ
$2.44+$0.32 (+15.09%)TodayMarket closed ·
Prev close $2.12
Who owns LRMR
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 65.9% of LRMR’s shares.
- Deerfield Management Company, L.P.34.3%
- Blue Owl Capital Holdings LP8.8%
- BlackRock Institutional Trust Company, N.A.4.8%
- Defilade Capital Management, L.P.3.5%
- Next 6 largest institutions14.5%
- All other shareholders34.1%
| Holder | Shares | % of shares |
|---|---|---|
| Deerfield Management Company, L.P. | 35.61M | 34.28% |
| Blue Owl Capital Holdings LP | 9.16M | 8.82% |
| BlackRock Institutional Trust Company, N.A. | 4.94M | 4.76% |
| Defilade Capital Management, L.P. | 3.67M | 3.53% |
| Driehaus Capital Management, LLC | 3.16M | 3.05% |
| Vanguard Capital Management, LLC | 2.97M | 2.86% |
| RTW Investments L.P. | 2.57M | 2.47% |
| AQR Capital Management, LLC | 2.37M | 2.28% |
| Marshall Wace LLP | 2.01M | 1.94% |
| Dafna Capital Management, LLC | 2.01M | 1.93% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 2.21M | 2.12% |
| iShares Russell 2000 ETF | 1.72M | 1.65% |
| Fidelity Enhanced Small Cap Core ETF | 937.22K | 0.90% |
| Driehaus US Micro Cap Equity Fund | 873.70K | 0.84% |
| Fidelity Small Cap Index Fund | 723.77K | 0.70% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $166.89K (1 trade) of LRMR on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Harlow John B. Jr. | Award | 800.00K | — |
| Harlow John B. Jr. | Award | 50.00K | — |
| Hamilton Thomas Edward | Buy | 50.00K | $166.89K |
| Truitt Joseph | Award | 55.15K | — |
| Hamilton Thomas Edward | Award | 55.15K | — |
| THOMAS FRANK E | Award | 55.15K | — |
| SHERMAN JEFFREY W | Award | 55.15K | — |
| LEFF JONATHAN S | Award | 55.15K | — |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Award | 55.15K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 15.37M
- Days to cover
- 8.70
- % of shares outstanding
- 14.80%
- Average daily volume
- 1.77M
- Change since last report
- +10.6%
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