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NASDAQ · Health care

Werewolf Therapeutics, Inc. (HOWL)

It posted a net loss of $34.6M. In fiscal 2025 capital spending exceeded operating cash flow by $60.3M. At June 30, 2026 it held $22M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on July 31, 2026.

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Price
$0.97
-3.96% on the day · November 10, 2026
52-week range $0.27 to $1.20
Market cap
$47.1M

Key facts about Werewolf Therapeutics, Inc.

Net worth
Werewolf Therapeutics, Inc. has a market value (market cap) of $47.1M at the latest share price, and shareholders' equity of $16.3M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Cash flow
In fiscal 2025 operations used $60.3M of cash.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on July 31, 2026 and covers the period to June 30, 2026. Open on SEC EDGAR
Next earnings report
Werewolf Therapeutics, Inc.'s next report was expected around November 3, 2026 and is not on file with the SEC yet.

What Werewolf Therapeutics, Inc. does

Werewolf Therapeutics, Inc. is registered with the SEC under industry code SIC 2834 (Pharmaceutical Preparations). Its shares trade on NASDAQ under the ticker HOWL.

Revenue and profit by year

Net income
FY21: -$15M -$15M FY21FY21: -$50M -$50M FY21FY22: -$53.8M -$53.8M FY22FY23: -$37.4M -$37.4M FY23FY24: -$70.5M -$70.5M FY24FY25: -$60.8M -$60.8M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025n/a-$60.7M-$60.8M-$1.33-$60.3M
2024n/a-$73.6M-$70.5M-$1.63-$56.4M
2023n/a-$40.5M-$37.4M-$1.05-$33.4M
2022n/a-$56.1M-$53.8M-$1.86-$44.2M
2021n/a-$50.1M-$50M-$10.94-$43.4M
2021n/a-$22.4M-$15M-$28.08-$19.2M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

A report was expected around November 3, 2026 and is not on file yet.

Estimated from its filing rhythm: 52 weeks after its report of November 4, 2025. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Latest SEC filings

What Werewolf Therapeutics, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. September 22, 2026
  2. September 21, 2026
  3. August 21, 2026
  4. August 21, 2026
  5. August 20, 2026
  6. July 31, 2026
    Quarterly report 10-Q · period to June 30, 2026Diluted EPS $0.08 versus -$0.40.
  7. July 31, 2026
  8. July 2, 2026
  9. June 26, 2026
  10. June 22, 2026

Recent insider filings (Forms 3, 4 and 144): 10, the latest on July 8, 2026. Insider transactions on SEC

Insider trades

What the people running Werewolf Therapeutics, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider trades were reported in the last 90 days.

Bought (open market)
$0
last 90 days
Sold
$0
last 90 days
DateInsiderWhatSharesPriceValueFiling
July 7, 2026 Evnin LukeDirector Soldpre-planned (10b5-1), indirect 107,429 $0.31 $33.3K Form 4
July 6, 2026 Evnin LukeDirector Soldpre-planned (10b5-1), indirect 35,770 $0.32 $11.4K Form 4
June 29, 2026 Evnin LukeDirector Soldpre-planned (10b5-1), indirect 157,084 $0.30 $47.1K Form 4
June 17, 2026 Ra Capital Management, L.P.10% owner Soldindirect 389,216 $0.35 $136.2K Form 4
June 17, 2026 Ra Capital Management, L.P.10% owner Soldindirect 27,695 $0.35 $9.7K Form 4
June 16, 2026 Ra Capital Management, L.P.10% owner Soldindirect 139,686 $0.37 $51.7K Form 4
June 16, 2026 Ra Capital Management, L.P.10% owner Soldindirect 9,939 $0.37 $3.7K Form 4
June 15, 2026 Ra Capital Management, L.P.10% owner Soldindirect 120,216 $0.39 $46.9K Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns HOWL

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

HolderOf classSharesFiled
Moll Peter13G, passive 5.2% 2,537,138 September 21, 2026

Latest filings below 5%: RA Capital Management, L.P. 4.1% (July 2, 2026); Ansbert Gadicke 3.8% (May 12, 2026); Longwood Fund III GP, LLC 3.5% (February 11, 2026); PFM Health Sciences, LP 0.9% (August 14, 2025); Bank of America Corp 4.9% (November 14, 2024).

Largest institutional holders

No Form 13F positions imported for this company yet.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

3 insiders reported holding 9,871,941 shares in total, about $9.6M at the last price.

HolderSharesAs of
Gadicke AnsbertFormer 10% Owner 4,784,1114,784,111 held indirectly December 4, 2025
MPM BioVentures 2014, L.P.Former 10% Owner 4,784,1114,784,111 held indirectly December 4, 2025
Ra Capital Management, L.P.10% owner 303,719303,719 held indirectly June 17, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about HOWL

What does Werewolf Therapeutics, Inc. do?

Werewolf Therapeutics, Inc. is a company in the Health care sector, listed on NASDAQ as HOWL. Its shares trade on NASDAQ under the ticker HOWL.

What is Werewolf Therapeutics, Inc.'s net worth?

Werewolf Therapeutics, Inc. has a market value (market cap) of $47.1M at the latest share price, and shareholders' equity of $16.3M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is Werewolf Therapeutics, Inc. profitable?

No. Over the twelve months to June 30, 2026 it reported a net loss of $34.6M.

When did Werewolf Therapeutics, Inc. last report?

Its most recent periodic report is the quarterly report (10-Q) filed on July 31, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the merger registration from September 22, 2026.

When is Werewolf Therapeutics, Inc.'s next earnings report?

Werewolf Therapeutics, Inc.'s next report was expected around November 3, 2026 and is not on file with the SEC yet.

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Where the numbers come from

Financial figures are the values Werewolf Therapeutics, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.