Tang Capital Management LLC

10% owner, Boundless Bio, Inc.; 10% owner, Fulcrum Therapeutics, Inc.

Bought, 12 months

$0.9M

Sold, 12 months

$0.1M

Companies

Latest trade

Aug 26, 2026

Companies

Boundless Bio, Inc.10% owner −$0.1M Fulcrum Therapeutics, Inc.10% owner +$0.9M

Trades

BOLD Sold 18,300 shares at $2.97 $0.1M Aug 26

FULC Bought 107,377 shares at $3.56 $0.4M Jul 15

FULC Bought 129,603 shares at $3.57 $0.5M Jul 14

FULC Bought 12,966 shares at $3.54 $0.0M Jul 13

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.