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Portfolio (Quarterly) Guide ↗

DEERFIELD MANAGEMENT COMPANY, L.P.

· CIK 0001009258
13F Portfolio $8.5B AUM 82 positions Filed May 15, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 12 New 14 Added 9 Reduced 80 Exited
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 ARROWHEAD PHARMACEUTICALS IN 200,000,000.0 $207.2M 2.44% NEW $1.04
2 INDV INDIVIOR PHARMACEUTICALS INC Healthcare 3,097,790.0 $94.4M 1.11% NEW $30.48 +24.1%
3 SNDX SYNDAX PHARMACEUTICALS INC Healthcare 3,779,900.0 $88.3M 1.04% NEW $23.36 -12.0%
4 DNTH DIANTHUS THERAPEUTICS INC Healthcare 1,019,813.0 $85.6M 1.01% NEW $83.92 +1.7%
5 PFE PFIZER INC Healthcare 3,040,000.0 $85.4M 1.01% NEW $28.08 -8.3%
6 ZENAS BIOPHARMA INC 65,000,000.0 $67.3M 0.79% NEW $1.03
7 GMAB GENMAB A/S Healthcare 2,462,000.0 $66.1M 0.78% NEW $26.83 +0.3%
8 BMRN BIOMARIN PHARMACEUTICAL INC Healthcare 851,556.0 $48.1M 0.57% NEW $56.49 -8.3%
9 TYRA TYRA BIOSCIENCES INC Healthcare 549,000.0 $21.0M 0.25% NEW $38.30 -4.7%
10 BRIGHT MINDS BIOSCIENCES INC 283,000.0 $20.7M 0.24% NEW $72.97
11 SGP SPYGLASS PHARMA INC Healthcare 550,000.0 $14.3M 0.17% NEW $25.91 -6.3%
12 MANE VERADERMICS INC Healthcare 5,000.0 $316K 0.00% NEW $63.15 +69.7%

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Healthcare 100.0%