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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
Luke EvninDirector2026-07-07107,429$0.31
$33.30kSell
Luke EvninDirector2026-07-0635,770$0.32
$11.45kSell
Luke EvninDirector2026-06-29157,084$0.30
$47.13kSell
Ra Capital Management LP10% Owner2026-06-1727,695$0.35
$9.69kSell
Ra Capital Management LP10% Owner2026-06-17389,216$0.35
$136.23kSell
Ra Capital Management LP10% Owner2026-06-16139,686$0.37
$51.68kSell
Ra Capital Management LP10% Owner2026-06-169,939$0.37
$3.68kSell
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

1 of 17

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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
Mpm Bioventures 2014 LP21.99%10,688,831$3.77MInsider
Ansbert Gadicke21.99%10,688,831$3.77MInsider
Ra Capital Management LP13.75%6,681,307$2.36MInstitution
Luke Evnin7.79%3,787,474$1.34MInsider
James E. Flynn5.25%2,552,787$901.13kInsider
Sakae Asanuma4.26%2,068,909$730.32kInsider
Taiho Ventures LLC4.26%2,068,909$730.32kInsider
Alon Lazarus4.21%2,046,634$722.46kInsider
Arkin Bio Ventures 2 LP4.21%2,046,634$722.46kInsider
Longwood Fund III GP LLC3.45%1,677,082$592.01kInsider

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HOWL vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HOWL25.56%74.44%Net SellingNet Selling
LPCN29.47%70.53%Net Buying
NCEL0.02%27.34%Net Buying
PLUR0.02%99.98%Net Buying
JSPR24.29%75.71%Net Buying
View Top Biotech Stocks

Werewolf Therapeutics Stock Ownership FAQ

Who owns Werewolf Therapeutics?

Werewolf Therapeutics (NASDAQ: HOWL) is owned by 28.81% institutional shareholders, 83.88% Werewolf Therapeutics insiders, and 0.00% retail investors. Mpm Bioventures 2014 LP is the largest individual Werewolf Therapeutics shareholder, owning 10.69M shares representing 21.99% of the company. Mpm Bioventures 2014 LP's Werewolf Therapeutics shares are currently valued at $3.77M.

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