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

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Werewolf Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Ra Capital Management LP10% Owner2026-06-169,939$0.37
$3.68kSell
Ra Capital Management LP10% Owner2026-06-16139,686$0.37
$51.68kSell
Ra Capital Management LP10% Owner2026-06-158,554$0.39
$3.34kSell
Ra Capital Management LP10% Owner2026-06-15120,216$0.39
$46.88kSell
Ra Capital Management LP10% Owner2026-06-12159,119$0.40
$63.65kSell
Ra Capital Management LP10% Owner2026-06-1211,322$0.40
$4.53kSell
Ra Capital Management LP10% Owner2026-06-1117,437$0.38
$6.63kSell
Ra Capital Management LP10% Owner2026-06-11245,066$0.38
$93.13kSell
Ra Capital Management LP10% Owner2026-06-103,051$0.37
$1.13kSell
Ra Capital Management LP10% Owner2026-06-1042,872$0.37
$15.86kSell

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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$3.85MInsider
Mpm Bioventures 2014 LP21.99%10,688,831$3.85MInsider
Ra Capital Management LP13.75%6,681,307$2.41MInstitution
Luke Evnin8.41%4,087,757$1.47MInsider
James E. Flynn5.25%2,552,787$919.00kInsider
Sakae Asanuma4.26%2,068,909$744.81kInsider
Taiho Ventures LLC4.26%2,068,909$744.81kInsider
Arkin Bio Ventures 2 LP4.21%2,046,634$736.79kInsider
Alon Lazarus4.21%2,046,634$736.79kInsider
Longwood Fund III GP LLC3.45%1,677,082$603.75kInsider

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HOWL vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HOWL25.41%74.59%Net SellingNet Selling
KTTA38.36%38.68%Net Buying
ELOX0.00%100.00%Net Buying
GTBP4.47%3.34%
ATOS10.92%89.08%
View Top Biotech Stocks

Werewolf Therapeutics Stock Ownership FAQ

Who owns Werewolf Therapeutics?

Werewolf Therapeutics (NASDAQ: HOWL) is owned by 28.81% institutional shareholders, 84.55% 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 $3.68M.

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