Werewolf Therapeutics Ownership & Insider Activity

Werewolf Therapeutics (HOWL) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.8% of shares outstanding. Institutional investors hold 6.6%.

Shares Outstanding

48.601M

Shares Float

40.200M

Insider Shares Owned

861.263K

Insider % Owned

1.8%

Institutional Shares Held

3.188M

Institutional % Held

6.6%

Ownership Breakdown

Net Insider Activity by Month

Werewolf Therapeutics Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Jul 6, 2026	Luke Evnin	—	SELL	143.199K	$0.31	$45K
Jun 29, 2026	Luke Evnin	—	SELL	157.084K	$0.30	$47K
Jun 17, 2026	RA CAPITAL MANAGEMENT LP, RA Capital Healthcare Fund LP, Peter Kolchinsky, Rajeev Shah	10% OWNER	SELL	416.911K	$0.35	$146K
Jun 12, 2026	RA CAPITAL MANAGEMENT LP, RA Capital Healthcare Fund LP, Peter Kolchinsky, Rajeev Shah	10% OWNER	SELL	448.836K	$0.39	$174K
Jun 9, 2026	RA CAPITAL MANAGEMENT LP, RA Capital Healthcare Fund LP, Peter Kolchinsky, Rajeev Shah	10% OWNER	SELL	678.226K	$0.37	$254K
Jun 9, 2026	Luke Evnin	—	SELL	76.928K	$0.37	$28K
Jun 4, 2026	Luke Evnin	—	SELL	105.565K	$0.41	$43K
Jun 1, 2026	Luke Evnin	—	SELL	139.803K	$0.46	$64K
May 27, 2026	Luke Evnin	—	SELL	141.106K	$0.47	$66K
May 21, 2026	Luke Evnin	—	SELL	191.762K	$0.45	$87K
May 18, 2026	Luke Evnin	—	SELL	171.049K	$0.45	$76K
May 13, 2026	Luke Evnin	—	SELL	44.679K	$0.54	$24K
May 8, 2026	Luke Evnin	—	SELL	407.574K	$0.69	$280K
May 8, 2026	RA CAPITAL MANAGEMENT LP, RA Capital Healthcare Fund LP, Peter Kolchinsky, Rajeev Shah	10% OWNER	SELL	565.167K	$0.69	$391K
May 5, 2026	Luke Evnin	—	SELL	100.581K	$0.64	$64K
Apr 30, 2026	Luke Evnin	—	SELL	274.619K	$0.72	$198K
Apr 27, 2026	Luke Evnin	—	SELL	205.911K	$0.75	$155K