DEERFIELD MANAGEMENT COMPANY, L.P.

Q3 2025 13F-HR Detailed Holdings

Location
New York, NY
Holdings as of
9/30/2025
Date filed
11/14/2025
Form type
13F-HR
Num holdings
152
Total value ($000)
$6,550,740
Net value change ($000)
+1,040,931 (18.9%)
New positions
47
Sold out positions
19
Turnover %
15.3%
Sector allocation + QoQ delta (equities-only)

Holdings broken out by other managers reported in the original SEC filing. View aggregated holdings

You are on the SEC detailed breakdown page. Rows are shown as reported in the filing (including other manager, discretion, and voting authority fields), and are not merged like the standard holdings view. Switch to aggregated holdings.

Snapshot: Change Analysis

Compared to Q2 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
NUVL 183,149 13.3%
CNC 149,859 86.7%
IONS 129,510 NEW
COGT 111,046 585.8%
Merus N.V. 108,836 61.1%
BMY 105,433 NEW
INSP 59,571 327.9%
BBOT 56,573 NEW
BCRX 50,323 119.7%
RVMD 45,971 36.9%
Top Reduces (Value $000, Stocks/ETFs)
OSCR -249,767 -100.0%
SPRY -94,280 -55.6%
BAX -57,258 -98.3%
MRNA -27,590 -100.0%
IDYA -23,716 -28.8%
PFE -20,203 -19.4%
LQDA -20,145 -100.0%
MREO -18,185 -100.0%
ALNY -16,305 -34.5%
NVCR -14,687 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 25,830 (0.4% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
Filter:
Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type Discretion Other Manager Sole Shared None

Other Managers

Num Name File Number
1 Deerfield UGP, LLC 028-25875