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RA CAPITAL MANAGEMENT, L.P.

Track RA CAPITAL MANAGEMENT, L.P.'s latest SEC 13F filing: top biotech and life-sciences stock positions, portfolio weights, largest holdings, and quarter-over-quarter changes.
Updated quarterly · Last refreshed Jun 19, 2026
Showing 6 Stocks Out Of 85. Click On The Tickers For More Details
Stock Compnay Name Shares Held Market Value % of Portfolio QoQ Change
NKTX
NKTX
NKARTA INC
10.81 M
22.80 M
0.2
INSP
INSP
INSPIRE MEDICAL SYSTEMS INC
325.66 K
16.80 M
0.2
SABS
SABS
SAB BIOTHERAPEUTICS INC
4.40 M
16.86 M
0.2
CTNM
CTNM
CONTINEUM THERAPEUTICS INC-A
1.30 M
16.93 M
0.2
STRO
STRO
SUTRO BIOPHARMA INC
715.31 K
17.82 M
0.2
DRUG.CN
DRUG.CN
BRIGHT MINDS BIOSCIENCES INC
265.00 K
19.34 M
0.2
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Market Value

$ 9.44 B

Holdings

85

Period

Q1 2026

Holdings in Top 20

77.3 %

QoQ Changes

-3.31 %

Top 20 Holdings