Cormorant Asset Management, LP

Q1 2026 13F-HR Holdings

Location
Boston, MA
Holdings as of
3/31/2026
Date filed
5/15/2026
Form type
13F-HR
Num holdings
47
Total value ($000)
$1,991,046
Net value change ($000)
-171,534 (-7.9%)
New positions
17
Sold out positions
3
Turnover %
23.5%
Sector allocation + QoQ delta (equities-only)

Holdings aggregated across other managers listed in the original SEC filing. View detailed breakdown

Prev filing: 2/17/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q4 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)
ERAS 93,844 NEW
DNTH 79,724 NEW
ALMS 51,519 145.2%
GLTO 39,498 NEW
TNGX 29,811 NEW
MLTX 26,110 45.5%
AGMB 25,862 NEW
BIOA 23,560 87.3%
MAZE 22,388 NEW
EWTX 21,173 26.0%
Top Reduces (Value $000, Stocks/ETFs)
ABVX -97,428 -53.5%
BBOT -63,827 -28.5%
EYPT -44,466 -29.4%
ENGN -36,120 -100.0%
BBIO -28,667 -31.2%
INSM -16,792 -35.1%
GHRS -16,510 -100.0%
OLMA -10,601 -15.4%
JANX -8,970 -100.0%
DRUG -5,371 -6.5%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 7,455 (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.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type