Form 4 Tracker
RA CAPITAL MANAGEMENT, L.P.

10% Owner; Director; Director, 10% Owner · 15 filings · Latest: Jun 10, 2026

Acrivon Therapeutics, Inc.
Acumen Pharmaceuticals, Inc.
Artiva Biotherapeutics, Inc.
Bicara Therapeutics Inc.
Climb Bio, Inc.
Hemab Therapeutics Holdings, Inc.
Nkarta, Inc.
Parabilis Medicines, Inc.
Tyra Biosciences, Inc.
Werewolf Therapeutics, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
HOWL
RA CAPITAL MANAGEMENT, L.P.10% OwnerJun 11, 2026
Sale
$0.38262,503$99.8K361,229
HOWL
RA CAPITAL MANAGEMENT, L.P.10% OwnerJun 10, 2026
Sale
$0.3745,923$17.0K378,666
HOWL
RA CAPITAL MANAGEMENT, L.P.10% OwnerJun 9, 2026
Sale
$0.37369,800$136.8K381,717
ARTV
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerJun 11, 2026
Purchase
$7.91548,580$4.3M16,231,717
ARTV
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerJun 10, 2026
Purchase
$7.00103$72115,683,137
ARTV
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerJun 9, 2026
Purchase
$6.91479,039$3.3M15,683,034
COAG
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 20, 2026
Purchase
$24.94996$24.8K6,376,968
COAG
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 19, 2026
Purchase
$24.973,802$94.9K6,375,972
COAG
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 12, 2026
Purchase
$24.906,387$159.0K6,372,170
ARTV
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerMay 11, 2026
Purchase
$11.526,510,416$75.0M15,203,995
HOWL
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 12, 2026
Sale
$0.64101,151$64.7K406,282
HOWL
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 11, 2026
Sale
$0.6787,490$58.6K413,001
HOWL
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 8, 2026
Sale
$0.71376,526$267.3K418,813
COAG
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 11, 2026
Purchase
$24.8139,869$989.2K6,365,783
COAG
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 8, 2026
Purchase
$24.981,483$37.0K6,325,914
COAG
RA CAPITAL MANAGEMENT, L.P.10% OwnerMay 7, 2026
Purchase
$24.469,906$242.3K6,324,431
COAG
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerMay 6, 2026
Purchase
$24.6068,018$1.7M6,314,525
COAG
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerMay 5, 2026
Purchase
$24.6397,411$2.4M6,246,507
COAG
RA CAPITAL MANAGEMENT, L.P.Director, 10% OwnerMay 4, 2026
Purchase
$18.002,675,000$48.1M354,938