NASDAQ: HOWL
Werewolf Therapeutics Inc Stock Ownership - Who owns Werewolf Therapeutics?

Insider buying vs selling

Have Werewolf Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Luke EvninDirector2026-04-2956,559$0.69
$39.03kSell
Luke EvninDirector2026-04-2895,412$0.73
$69.65kSell
Luke EvninDirector2026-04-2753,940$0.85
$45.85kSell
Luke EvninDirector2026-01-1638,782$0.54
$20.94kSell
Luke EvninDirector2026-01-1537,413$0.55
$20.58kSell
Luke EvninDirector2026-01-1430,616$0.57
$17.45kSell
Luke EvninDirector2026-01-1343,198$0.55
$23.76kSell
Luke EvninDirector2026-01-1258,980$0.57
$33.62kSell
Luke EvninDirector2026-01-0924,678$0.61
$15.05kSell
Luke EvninDirector2026-01-087,716$0.63
$4.86kSell

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Net Insider Buy/Sell (L12M) Ownership

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HOWL Shareholders

What type of owners hold Werewolf Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ansbert Gadicke21.99%10,688,831$7.73MInsider
Mpm Bioventures 2014 LP21.99%10,688,831$7.73MInsider
Ra Capital Management LP13.75%6,681,307$4.83MInstitution
Luke Evnin11.81%5,741,423$4.15MInsider
James E. Flynn5.25%2,552,787$1.85MInsider
Sakae Asanuma4.26%2,068,909$1.50MInsider
Taiho Ventures LLC4.26%2,068,909$1.50MInsider
Alon Lazarus4.21%2,046,634$1.48MInsider
Arkin Bio Ventures 2 LP4.21%2,046,634$1.48MInsider
Longwood Fund III GP LLC3.45%1,677,082$1.21MInsider

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HOWL vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HOWL25.59%74.41%Net SellingNet Selling
BOLD39.19%23.80%
SDEV5.42%94.58%
ATNM14.92%85.08%Net Selling
APLM0.20%47.36%Net SellingNet Selling

Werewolf Therapeutics Stock Ownership FAQ

Who owns Werewolf Therapeutics?

Werewolf Therapeutics (NASDAQ: HOWL) is owned by 30.32% institutional shareholders, 88.19% Werewolf Therapeutics insiders, and 0.00% retail investors. Ansbert Gadicke is the largest individual Werewolf Therapeutics shareholder, owning 10.69M shares representing 21.99% of the company. Ansbert Gadicke's Werewolf Therapeutics shares are currently valued at $7.73M.

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