Deerfield Mgmt III, L.P.
CIK 1610540 · last filed 2026-03-02
Deerfield Mgmt III, L.P. is a corporate insider who has filed 9 SEC Form 4 insider transactions across 9 companies since 2015. The most recent filing shows the insider bought $250.0M of LRMR on Mar 2, 2026. Across all open-market trades the lifetime net is +$146.7M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $50.5M across reported positions. The firm reports its address in New York, NY. 82 SEC filings were submitted jointly with Deerfield Private Design Fund III, L.P.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$50.54M
9
9
$146.73M
Filer Profile
NEW YORK, NY 10017
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| LRMR | Director | 6,207,982 | $3.92 | $24.34M | $250.00M | 1 | 2026-03-02 |
| SPRY | 10%+ Owner | 4,887,254 | $4.76 | $23.26M | -$81.98M | 1 | 2025-07-01 |
| GUTS | 10%+ Owner | 834,254 | $0.64 | $533.9K | $0 | 1 | 2024-02-08 |
| Oncorus, Inc. (ONCR) Delisted | 10%+ Owner | 1,400,972 | $0.12 | $168.9K | -$42.7K | 1 | 2022-12-15 |
| FIXX | 10%+ Owner | 7,150 | $13.72 | $98.1K | -$61.46M | 1 | 2019-12-27 |
| Shockwave Medical, Inc. (SWAV) Delisted | 10%+ Owner | 132,740 | $334.75 | $44.43M | $3.06M | 1 | 2019-03-11 |
| EDIT | 10%+ Owner | 854,700 | $2.70 | $2.31M | $9.60M | 1 | 2016-02-08 |
| ALIMERA SCIENCES INC (ALIM) Delisted | 10%+ Owner | 13,844 | $5.54 | $76.7K | $6.56M | 1 | 2015-12-08 |
| Neos Therapeutics, Inc. (NEOS) Delisted | 10%+ Owner | 429,166 | $1.15 | $493.5K | $21.00M | 1 | 2015-07-28 |
Recent Filings
9 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-02 | LRMR | Buy (P) | +50,000,000 | $250.00M | EDGAR |
| 2025-07-01 | SPRY | Sell (S) | −4,440,894 | -$81.98M | EDGAR |
| 2024-02-08 | GUTS | Conv (C) | +3,337,016 | $0 | EDGAR |
| 2022-12-15 | Oncorus, Inc. (ONCR) Delisted | Sell (S) | −110,288 | -$42.7K | EDGAR |
| 2019-12-27 | FIXX | Sell (S) | −2,800,000 | -$61.46M | EDGAR |
| 2019-03-11 | Shockwave Medical, Inc. (SWAV) Delisted | Mixed | +2,052,876 | $3.06M | EDGAR |
| 2016-02-08 | EDIT | Mixed | +10,856,400 | $9.60M | EDGAR |
| 2015-12-08 | ALIMERA SCIENCES INC (ALIM) Delisted | Buy (P) | +2,177,992 | $6.56M | EDGAR |
| 2015-07-28 | Neos Therapeutics, Inc. (NEOS) Delisted | Mixed | +5,149,992 | $36.00M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.