Ra Capital Management, L.P.

Director, 10% owner, Sionna Therapeutics, Inc.; Director, 10% owner, Artiva Biotherapeutics, Inc.; 10% owner, Werewolf Therapeutics, Inc.; Director, 10% owner, Vor Biopharma Inc.; Director, 10% owner, Wave Life Sciences, Inc.; Director, 10% owner, Bicara Therapeutics Inc.; Director, 10% owner, Evommune, Inc.

Bought, 12 months

$79.7M

Sold, 12 months

$44.6M

Companies

Latest trade

Sep 17, 2026

Companies

Sionna Therapeutics, Inc.Director, 10% owner −$21.8M Artiva Biotherapeutics, Inc.Director, 10% owner +$0.3M Werewolf Therapeutics, Inc.10% owner −$0.7M Vor Biopharma Inc.Director, 10% owner −$28.3M Wave Life Sciences, Inc.Director, 10% owner +$54.6M Bicara Therapeutics Inc.Director, 10% owner +$4.8M Evommune, Inc.Director, 10% owner +$20.0M

Trades

SION Sold 3,448,811 shares at $6.33 $21.8M Sep 17

ARTV Bought 1,876 shares at $8.98 $0.0M Jun 26

ARTV Bought 31,000 shares at $8.88 $0.3M Jun 25

HOWL Sold 416,911 shares at $0.35 $0.1M Jun 17

HOWL Sold 149,625 shares at $0.37 $0.1M Jun 16

HOWL Sold 128,770 shares at $0.39 $0.1M Jun 15

HOWL Sold 170,441 shares at $0.40 $0.1M Jun 12

HOWL Sold 101,151 shares at $0.64 $0.1M May 12

HOWL Sold 87,490 shares at $0.67 $0.1M May 11

HOWL Sold 376,526 shares at $0.71 $0.3M May 8

VOR Sold 171,963 shares at $15.77 $2.7M Apr 20

VOR Sold 458,411 shares at $16.28 $7.5M Apr 17

VOR Sold 53,644 shares at $16.01 $0.9M Apr 15

VOR Sold 153,735 shares at $15.97 $2.5M Apr 14

VOR Sold 530,610 shares at $16.15 $8.6M Apr 13

WVE Bought 971,091 shares at $6.50 $6.3M Mar 30

WVE Bought 2,495,623 shares at $6.43 $16.0M Mar 27

WVE Bought 5,305,782 shares at $6.08 $32.3M Mar 26

BCAX Bought 300,000 shares at $16.00 $4.8M Feb 26

WVE Bought 1,000 shares at $6.69 $0.0M Nov 13

EVMN Bought 1,250,000 shares at $16.00 $20.0M Nov 7

VOR Sold 90,941 shares at $28.12 $2.6M Oct 27

VOR Sold 53,345 shares at $28.01 $1.5M Oct 24

VOR Sold 76,880 shares at $28.01 $2.2M Oct 23

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.