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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 Aug 3, 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 | NKARTA INC | 10.81 M | 22.80 M | 0.2 | |
 INSP | INSPIRE MEDICAL SYSTEMS INC | 325.66 K | 16.80 M | 0.2 | |
 SABS | SAB BIOTHERAPEUTICS INC | 4.40 M | 16.86 M | 0.2 | |
 CTNM | CONTINEUM THERAPEUTICS INC-A | 1.30 M | 16.93 M | 0.2 | |
 STRO | SUTRO BIOPHARMA INC | 715.31 K | 17.82 M | 0.2 | |
 DRUG.CN | BRIGHT MINDS BIOSCIENCES INC | 265.00 K | 19.34 M | 0.2 |
Market Value
$ 9.44 B
Holdings
85
Period
Q1 2026
Holdings in Top 20
77.3 %
QoQ Changes
-3.31 %