Deerfield Mgmt L.P.
Director10% Owner
Deerfield Mgmt L.P.Director10% Owner
Deerfield Mgmt L.P. insider trades: Larimar Therapeutics (LRMR) stock buys and sales
Director, Larimar Therapeutics Last trade Feb 27, 2026 277 Form 4 filings
$70.9M
Sold, last 12 months
2 sales
$25.0M
Bought, last 12 months
4 buys
479
Open-market trades
since 2005
88
Companies
last trade 2026
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Deerfield Mgmt L.P. reports to the SEC
LRMRLarimar Therapeutics
Director · last filing Mar 2, 2026
+$92.5M
NUVLNuvalent
Director · last filing Jul 17, 2026
-$266.4M
+$21.8M
BCAXBicara Therapeutics
10% Owner · last filing Sep 17, 2024
+$1.3M
AHCOAdaptHealth
10% Owner · last filing Mar 12, 2024
-$3.8M
ONCROncorus
10% Owner · last filing Dec 30, 2022
-$151K
+$20.7M
PEPGPepGen
10% Owner · last filing May 10, 2022
+$5.0M
and 82 more companies
Open-market buys and sales
479 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 27, 2026 | LRMR | ↑ Buy | 2,000,000 | $5.00 | $10.0M | Through Deerfield Partners, L.P. | Mar 2, 2026 (3d) |
| Feb 27, 2026 | LRMR | ↑ Buy | 1,084,012 | $5.00 | $5.4M | Through Deerfield Private Design Fund IV | Mar 2, 2026 (3d) |
| Feb 27, 2026 | LRMR | ↑ Buy | 1,084,010 | $5.00 | $5.4M | Through Deerfield Private Design Fund II | Mar 2, 2026 (3d) |
| Feb 27, 2026 | LRMR | ↑ Buy | 831,978 | $5.00 | $4.2M | Through Deerfield Healthcare Innovations | Mar 2, 2026 (3d) |
| Nov 24, 2025 | NUVL | ↓ Sell | 371,287 | $95.44 | $35.4M | Through Deerfield Healthcare Innovations | Nov 24, 2025 (0d) |
| Nov 24, 2025 | NUVL | ↓ Sell | 371,287 | $95.44 | $35.4M | Through Deerfield Private Design Fund IV | Nov 24, 2025 (0d) |
| Jul 31, 2025 | LRMR | ↑ Buy | 3,387,539 | $3.20 | $10.8M | Through Deerfield Private Design Fund IV | Aug 4, 2025 (4d) |
| Jul 31, 2025 | LRMR | ↑ Buy | 3,387,529 | $3.20 | $10.8M | Through Deerfield Private Design Fund II | Aug 4, 2025 (4d) |
| Jul 31, 2025 | LRMR | ↑ Buy | 2,599,932 | $3.20 | $8.3M | Through Deerfield Healthcare Innovations | Aug 4, 2025 (4d) |
| Oct 22, 2024 | NUVL | ↓ Sell | 1,000,000 | $97.75 | $97.8M | Through Deerfield Healthcare Innovations | Oct 24, 2024 (2d) |
| Oct 22, 2024 | NUVL | ↓ Sell | 1,000,000 | $97.75 | $97.8M | Through Deerfield Private Design Fund IV | Oct 24, 2024 (2d) |
| Sep 17, 2024 | BCAX | ↑ Buy | 35,000 | $18.00 | $630K | Through Deerfield Private Design Fund V, | Sep 17, 2024 (0d) |
| Sep 17, 2024 | BCAX | ↑ Buy | 35,000 | $18.00 | $630K | Through Deerfield Partners, L.P. | Sep 17, 2024 (0d) |
| Mar 12, 2024 | AHCO | ↓ Sell | 350,000 | $10.90 | $3.8M | Through Deerfield Partners, L.P. | Mar 12, 2024 (0d) |
| Feb 16, 2024 | LRMR | ↑ Buy | 1,430,206 | $8.74 | $12.5M | Through Deerfield Private Design Fund IV | Feb 16, 2024 (0d) |
| Feb 16, 2024 | LRMR | ↑ Buy | 1,430,206 | $8.74 | $12.5M | Through Deerfield Private Design Fund II | Feb 16, 2024 (0d) |
| Feb 16, 2024 | LRMR | ↑ Buy | 1,430,205 | $8.74 | $12.5M | Through Deerfield Partners, L.P. | Feb 16, 2024 (0d) |
| Dec 30, 2022 | ONCR | ↓ Sell | 149,691 | $0.26 | $39K | Through Deerfield Private Design Fund II | Dec 30, 2022 (0d) |
| Dec 30, 2022 | ONCR | ↓ Sell | 149,690 | $0.26 | $39K | Through Deerfield Healthcare Innovations | Dec 30, 2022 (0d) |
| Dec 30, 2022 | ONCR | ↓ Sell | 36,854 | $0.26 | $10K | Through Deerfield Partners, L.P. | Dec 30, 2022 (0d) |
| Dec 27, 2022 | ONCR | ↓ Sell | 32,670 | $0.27 | $9K | Through Deerfield Private Design Fund II | Dec 27, 2022 (0d) |
| Dec 27, 2022 | ONCR | ↓ Sell | 32,669 | $0.27 | $9K | Through Deerfield Healthcare Innovations | Dec 27, 2022 (0d) |
| Dec 27, 2022 | ONCR | ↓ Sell | 8,045 | $0.27 | $2K | Through Deerfield Partners, L.P. | Dec 27, 2022 (0d) |
| Dec 21, 2022 | ONCR | ↓ Sell | 57,100 | $0.29 | $17K | Through Deerfield Healthcare Innovations | Dec 21, 2022 (0d) |
| Dec 21, 2022 | ONCR | ↓ Sell | 57,099 | $0.29 | $17K | Through Deerfield Private Design Fund II | Dec 21, 2022 (0d) |
| Dec 21, 2022 | ONCR | ↓ Sell | 14,059 | $0.29 | $4K | Through Deerfield Partners, L.P. | Dec 21, 2022 (0d) |
| Dec 15, 2022 | ONCR | ↓ Sell | 6,137 | $0.39 | $2K | Through Deerfield Healthcare Innovations | Dec 15, 2022 (0d) |
| Dec 15, 2022 | ONCR | ↓ Sell | 6,137 | $0.39 | $2K | Through Deerfield Private Design Fund II | Dec 15, 2022 (0d) |
| Dec 15, 2022 | ONCR | ↓ Sell | 1,512 | $0.39 | $585 | Through Deerfield Partners, L.P. | Dec 15, 2022 (0d) |
| Nov 3, 2022 | NUVL | ↑ Buy | 650,000 | $33.50 | $21.8M | Through Deerfield Partners, L.P. | Nov 7, 2022 (4d) |
| May 10, 2022 | PEPG | ↑ Buy | 208,333 | $12.00 | $2.5M | Through Deerfield Private Design Fund V, | May 10, 2022 (0d) |
| May 10, 2022 | PEPG | ↑ Buy | 208,333 | $12.00 | $2.5M | Through Deerfield Partners, L.P. | May 10, 2022 (0d) |
| Oct 26, 2021 | XLO | ↑ Buy | 387,500 | $16.00 | $6.2M | Through Deerfield Private Design Fund V, | Oct 28, 2021 (2d) |
| Oct 26, 2021 | XLO | ↑ Buy | 387,500 | $16.00 | $6.2M | Through Deerfield Partners, L.P. | Oct 28, 2021 (2d) |
| Jul 30, 2021 | DALS | ↑ Buy | 1,600,000 | $10.00 | $16.0M | Through Deerfield Partners, L.P. | Aug 3, 2021 (4d) |
| Jul 19, 2021 | AFIB | ↑ Buy | 680,592 | $14.00 | $9.5M | Through Deerfield Private Design Fund II | Jul 21, 2021 (2d) |
| Jul 19, 2021 | AFIB | ↑ Buy | 390,836 | $14.00 | $5.5M | Through Deerfield Partners, L.P. | Jul 21, 2021 (2d) |
| Jul 9, 2021 | MIRM | ↓ Sell | 99,325 | $15.81 | $1.6M | Through Deerfield Special Situations Fun | Jul 13, 2021 (4d) |
| Jul 7, 2021 | MIRM | ↓ Sell | 66,675 | $16.29 | $1.1M | Through Deerfield Special Situations Fun | Jul 7, 2021 (0d) |
| Jun 1, 2021 | OMIC | ↑ Buy | 1,050,000 | $22.00 | $23.1M | Through Deerfield Partners, L.P. | Jun 3, 2021 (2d) |
| Jun 1, 2021 | OMIC | ↑ Buy | 450,000 | $22.00 | $9.9M | Through Deerfield Private Design Fund IV | Jun 3, 2021 (2d) |
| May 4, 2021 | HOWL | ↑ Buy | 800,000 | $16.00 | $12.8M | Through Deerfield Partners, L.P. | May 4, 2021 (0d) |
| Feb 17, 2021 | ONCR | ↑ Buy | 133,558 | $19.00 | $2.5M | Through Deerfield Healthcare Innovations | Feb 18, 2021 (1d) |
| Feb 17, 2021 | ONCR | ↑ Buy | 133,558 | $19.00 | $2.5M | Through Deerfield Private Design Fund II | Feb 18, 2021 (1d) |
| Feb 17, 2021 | ONCR | ↑ Buy | 32,884 | $19.00 | $625K | Through Deerfield Partners, L.P. | Feb 18, 2021 (1d) |
| Feb 9, 2021 | TERN | ↑ Buy | 665,000 | $17.00 | $11.3M | Through Deerfield Partners, L.P. | Feb 9, 2021 (0d) |
| Oct 6, 2020 | ONCR | ↑ Buy | 445,194 | $15.00 | $6.7M | Through Deerfield Healthcare Innovations | Oct 8, 2020 (2d) |
| Oct 6, 2020 | ONCR | ↑ Buy | 445,194 | $15.00 | $6.7M | Through Deerfield Private Design Fund II | Oct 8, 2020 (2d) |
| Oct 6, 2020 | ONCR | ↑ Buy | 109,612 | $15.00 | $1.6M | Through Deerfield Partners, L.P. | Oct 8, 2020 (2d) |
| Sep 29, 2020 | GRAY | ↑ Buy | 1,562,500 | $16.00 | $25.0M | Through Deerfield Partners, L.P. | Oct 1, 2020 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other LRMR insiders
Open-market trades in the last 12 months
Thomas Edward Hamilton
Insider
2 buys
Jul 6, 2026
Jeffrey W Sherman
Insider
1 buy
Feb 27, 2026
Frank E Thomas
Insider
1 buy
Feb 27, 2026
Deerfield Partners, L.P.
Director
1 buy
Feb 27, 2026
James E Flynn
Director
1 buy
Feb 27, 2026
Deerfield Private Design Fund III, L.P.
Director
1 buy
Feb 27, 2026
Deerfield Management Company, L.P.
Director
1 buy
Feb 27, 2026
Deerfield Healthcare Innovations Fund, L.P.
Director
1 buy
Feb 27, 2026
About Deerfield Mgmt L.P.'s insider trades
Deerfield Mgmt L.P. is a director at Larimar Therapeutics (LRMR). Since Sep 28, 2005, it has reported 236 open-market purchases worth $829.3M and 243 sales worth $511.8M on SEC Form 4. In the last 12 months: 4 buys ($25.0M) and 2 sales ($70.9M).
Its filings also include conversions (46 filings), other transactions (25 filings), grants and awards (10 filings), option exercises (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every LRMR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.