RA CAPITAL MANAGEMENT, L.P.
CIK 0001346824 · BOSTON, MA · Quarter end: 2026-06-30 · Filed on: 2026-08-14 · Open the SEC source ↗
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$11.51B
2026 Q2
Positions
84
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
60.4%
Est. Net Flow (Q)
—
2026 Q2
Top Holdings
ASND
ASCENDIS PHARMA A/S
23.8%
PBLS
PARABILIS MEDICINES INC
6.9%
RYTM
RHYTHM PHARMACEUTICALS INC
6.4%
PCVX
VAXCYTE INC
5.8%
SION
SIONNA THERAPEUTICS INC
3.8%
TYRA
TYRA BIOSCIENCES INC
3.4%
EWTX
EDGEWISE THERAPEUTICS INC
3.0%
NAMS
NEWAMSTERDAM PHARMA CO NV
2.8%
New / Increased
No prior quarter data
Reduced / Exited
No prior quarter data
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.