# Werewolf Therapeutics Inc. (HOWL)

Source: https://www.quantisnow.com/company/HOWL
Generated: 2026-11-06T21:11:22.955Z

- Ticker: HOWL
- Exchange: NASDAQ
- Sector: Health Care
- Industry: Biotechnology: Pharmaceutical Preparations
- IPO year: 2021
- SEC CIK: 0001785530
- Website: werewolftx.com

## About

Werewolf Therapeutics, Inc., a biopharmaceutical company, develops therapeutics engineered to stimulate the body's immune system for the treatment of cancer. It offers PREDATOR, a platform of protein engineering technology to design and engineer the future of immuno-oncology biotherapeutics for patients. The company's lead product candidates include WTX-124, a conditionally activated Interleukin-2 INDUKINE molecule for the treatment of advanced solid tumors; and WTX-330, a conditionally activated Interleukin-12 INDUKINE molecule for the treatment of relapsed or refractory advanced or metastatic solid tumors or lymphoma. It also develops WTX-613, a conditionally activated interferon alpha INDUKINE molecule for the treatment of solid tumors and hematologic malignancies. The company was incorporated in 2017 and is based in Cambridge, Massachusetts.

## Latest HOWL news and filings

- 2026-10-30 12:30 UTC [Werewolf Therapeutics Selected for Oral Presentation and to Present Posters at the Society for Immunotherapy of Cancer’s (SITC) 2026 Annual Meeting](https://www.quantisnow.com/insight/werewolf-therapeutics-selected-for-oral-presentation-and-to-present-posters-6764674)
- 2026-10-26 21:23 UTC [SEC Form S-4] [Amendment: SEC Form S-4/A filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/amendment-sec-form-s-4a-filed-by-werewolf-therapeutics-inc-6758000)
- 2026-09-22 21:04 UTC [SEC Form S-4] [SEC Form S-4 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-s-4-filed-by-werewolf-therapeutics-inc-6723251)
- 2026-09-21 15:11 UTC [SEC Form SCHEDULE 13G filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-schedule-13g-filed-by-werewolf-therapeutics-inc-6721480)
- 2026-08-21 13:12 UTC [SEC Form 425] [SEC Form 425 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-425-filed-by-werewolf-therapeutics-inc-6690920)
- 2026-08-21 13:10 UTC [SEC Form 8-K] [Werewolf Therapeutics Inc. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Regulation FD Disclosure](https://www.quantisnow.com/insight/werewolf-therapeutics-inc-filed-sec-form-8-k-entry-into-a-6690916)
- 2026-08-21 12:00 UTC [Public Offering] [Werewolf Therapeutics and Ambros Therapeutics Announce Merger Agreement and Concurrent Oversubscribed $150 million Private Placement](https://www.quantisnow.com/insight/werewolf-therapeutics-and-ambros-therapeutics-announce-merger-agreement-and-concurrent-6690767)
- 2026-08-21 12:00 UTC [Public Offering] [Werewolf Therapeutics and Ambros Therapeutics Announce Merger Agreement and Concurrent Oversubscribed $150 Million Private Placement](https://www.quantisnow.com/insight/werewolf-therapeutics-and-ambros-therapeutics-announce-merger-agreement-and-concurrent-6690758)
- 2026-08-20 20:06 UTC [SEC Form 8-K] [SEC Form 8-K filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-8-k-filed-by-werewolf-therapeutics-inc-6690001)
- 2026-07-31 11:10 UTC [SEC Form 10-Q] [SEC Form 10-Q filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-10-q-filed-by-werewolf-therapeutics-inc-6657114)
- 2026-07-31 11:06 UTC [SEC Form 8-K] [Werewolf Therapeutics Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits](https://www.quantisnow.com/insight/werewolf-therapeutics-inc-filed-sec-form-8-k-results-of-operations-6657110)
- 2026-07-31 11:00 UTC [Werewolf Therapeutics Reports Second Quarter 2026 Financial Results and Recent Corporate Updates](https://www.quantisnow.com/insight/werewolf-therapeutics-reports-second-quarter-2026-financial-results-and-recent-6657083)
- 2026-07-08 21:34 UTC [SEC Form 4] [Director Evnin Luke sold $44,749 worth of shares (143,199 units at $0.31) as part of a pre-agreed trading plan (SEC Form 4)](https://www.quantisnow.com/insight/director-evnin-luke-sold-44749-worth-of-shares-143199-units-6631933)
- 2026-07-06 21:19 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6628808)
- 2026-07-06 21:19 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6628805)
- 2026-07-06 21:19 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6628803)
- 2026-07-06 21:18 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6628800)
- 2026-07-06 21:18 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6628798)
- 2026-07-06 21:18 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6628794)
- 2026-07-03 00:26 UTC [Amendment: SEC Form SCHEDULE 13D/A filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/amendment-sec-form-schedule-13da-filed-by-werewolf-therapeutics-inc-6626924)
- 2026-06-29 23:07 UTC [SEC Form 4] [Director Evnin Luke sold $47,125 worth of shares (157,084 units at $0.30) as part of a pre-agreed trading plan (SEC Form 4)](https://www.quantisnow.com/insight/director-evnin-luke-sold-47125-worth-of-shares-157084-units-6619607)
- 2026-06-29 21:30 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6619481)
- 2026-06-29 21:30 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6619478)
- 2026-06-29 21:29 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6619474)
- 2026-06-29 21:29 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6619473)
- 2026-06-29 21:29 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6619471)
- 2026-06-29 21:29 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6619467)
- 2026-06-26 21:39 UTC [Amendment: SEC Form SCHEDULE 13D/A filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/amendment-sec-form-schedule-13da-filed-by-werewolf-therapeutics-inc-6617827)
- 2026-06-22 23:02 UTC [Amendment: SEC Form SCHEDULE 13D/A filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/amendment-sec-form-schedule-13da-filed-by-werewolf-therapeutics-inc-6611375)
- 2026-06-22 22:59 UTC [SEC Form 4] [Large owner Ra Capital Management, L.P. sold $145,919 worth of shares (416,911 units at $0.35) (SEC Form 4)](https://www.quantisnow.com/insight/large-owner-ra-capital-management-lp-sold-145919-worth-of-6611366)
- 2026-06-16 22:01 UTC [SEC Form 4] [Large owner Ra Capital Management, L.P. sold $173,758 worth of shares (448,836 units at $0.39) (SEC Form 4)](https://www.quantisnow.com/insight/large-owner-ra-capital-management-lp-sold-173758-worth-of-6605447)
- 2026-06-16 00:16 UTC [Amendment: SEC Form SCHEDULE 13D/A filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/amendment-sec-form-schedule-13da-filed-by-werewolf-therapeutics-inc-6603560)
- 2026-06-12 00:13 UTC [SEC Form 4] [Large owner Ra Capital Management, L.P. sold $253,569 worth of shares (678,226 units at $0.37) (SEC Form 4)](https://www.quantisnow.com/insight/large-owner-ra-capital-management-lp-sold-253569-worth-of-6599341)
- 2026-06-10 21:20 UTC [SEC Form 4] [Director Evnin Luke sold $28,463 worth of shares (76,928 units at $0.37) as part of a pre-agreed trading plan (SEC Form 4)](https://www.quantisnow.com/insight/director-evnin-luke-sold-28463-worth-of-shares-76928-units-6597648)
- 2026-06-08 22:13 UTC [SEC Form 4] [Director Evnin Luke sold $43,029 worth of shares (105,565 units at $0.41) as part of a pre-agreed trading plan (SEC Form 4)](https://www.quantisnow.com/insight/director-evnin-luke-sold-43029-worth-of-shares-105565-units-6594066)
- 2026-06-03 22:42 UTC [SEC Form 4] [Director Evnin Luke sold $63,628 worth of shares (139,803 units at $0.46) as part of a pre-agreed trading plan (SEC Form 4)](https://www.quantisnow.com/insight/director-evnin-luke-sold-63628-worth-of-shares-139803-units-6588055)
- 2026-05-29 22:51 UTC [SEC Form 4] [Director Evnin Luke sold $66,200 worth of shares (141,106 units at $0.47) as part of a pre-agreed trading plan (SEC Form 4)](https://www.quantisnow.com/insight/director-evnin-luke-sold-66200-worth-of-shares-141106-units-6580101)
- 2026-05-28 21:04 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6577675)
- 2026-05-28 21:03 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6577673)
- 2026-05-28 21:03 UTC [SEC Form 144] [SEC Form 144 filed by Werewolf Therapeutics Inc.](https://www.quantisnow.com/insight/sec-form-144-filed-by-werewolf-therapeutics-inc-6577669)

## More

- Live page with ratings, short volume, options and peers: https://www.quantisnow.com/company/HOWL
- Earnings history: https://www.quantisnow.com/earnings/HOWL
- Dividend history: https://www.quantisnow.com/dividends/HOWL
- Insider transactions: https://www.quantisnow.com/insiders/HOWL
- Options chain: https://www.quantisnow.com/options/HOWL
- SEC 8-K filings only: https://www.quantisnow.com/company/HOWL/8-k
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