HOWL: Amendment: SEC Form S-4/A filed by Werewolf Therapeutics Inc.
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Historical context for HOWL
Across the 9 sessions after earlier HOWL headlines, the stock closed higher 3 times and lower 6 times, with a median move of 9.5% in either direction. This shows timing only: many things move a stock in a session, and these figures do not show that any headline caused a move.
| Session | Earlier headline | HOWL | SPY |
|---|---|---|---|
| Aug 21, 2026 | Werewolf Therapeutics and Ambros Therapeutics Announce Merger Agreement and Concurrent Oversubscribed $150 million Private Placementand 1 other headline that session | +102.6% | +0.4% |
| Jul 31, 2026 | Werewolf Therapeutics Reports Second Quarter 2026 Financial Results and Recent Corporate Updates | -29.4% | +0.7% |
| May 8, 2026 | Werewolf Therapeutics Reports First Quarter 2026 Financial Results and Recent Corporate Updates | +9.7% | +0.8% |
| Mar 27, 2026 | Werewolf Therapeutics Reports Fourth Quarter and Full Year 2025 Financial Results and Recent Corporate Updates | -9.5% | -1.7% |
| Feb 25, 2026 | Werewolf Therapeutics Announces Plan to Explore Strategic Alternatives | -3.3% | +0.8% |
| Dec 19, 2025 | Werewolf Therapeutics downgraded by Wedbush with a new price target | +6.2% | +0.6% |
Quantisnow market dataNASDAQ
HOWL
Werewolf Therapeutics Inc.
- Market cap
- 30-day
- Sector
- Health Care
- Industry
- Biotechnology: Pharmaceutical Preparations
- Listed since
- 2021
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