The filing is an advance notice of intent to sell; the actual sale may or may not occur. Given the small size and the seller being a VC firm, this is unlikely to move the stock. Monitor for subsequent Form 4 filings to confirm execution.
Price Chart
Executive Summary
MPM Asset Management LLC, a major institutional shareholder, filed a Form 144 indicating intent to sell 16,830 shares of Werewolf Therapeutics (HOWL). The proposed sale has an estimated aggregate market value of approximately $5,436, representing a very small fraction of the company's $17M market cap. This is a routine sale by a venture capital investor and does not signal any change in company fundamentals.
Key Facts
- MPM Asset Management LLC filed a Form 144 to sell 16,830 shares of HOWL common stock.
- Shares were originally acquired in a private placement on May 4, 2021.
- Estimated aggregate market value of the proposed sale is $5,436.09.
- The sale represents approximately 0.03% of the company's $17M market cap.
Financial Impact
Proposed sale of 16,830 shares valued at ~$5,436, negligible relative to market cap.
Risk Factors
- Insider selling could signal reduced conviction, but the amount is trivial.
- No material risk to the company from this filing.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001628280-26-046085 |
| Document: 0001628280-26-046085-index.html | 0001628280-26-046085 |
| Document: 0001628280-26-046085.txt | 0001628280-26-046085 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 26, 2026 today | S-4/A | $0.9806 | awaiting T+5 | — | $0.9810 (−0.04%) |
Sep 22, 2026 4w ago | S-4 | $0.9894 $0.9223 | ▲ +6.78% | ▲ +6.11% | $0.9810 (+0.85%) |
Sep 21, 2026 5w ago | SC 13G | $0.9800 $0.9300 | ▼ −5.10% | ▼ −4.08% | $0.9810 (+0.10%) |
Aug 21, 2026 9w ago | 425 | $0.8740 $0.9433 | ▲ +7.93% | ▲ +7.46% | $0.9810 (+12.24%) |
Aug 21, 2026 9w ago | 8-K | $0.8740 $0.9433 | ▲ +7.93% | ▲ +7.46% | $0.9810 (+12.24%) |
Aug 21, 2026 9w ago | Press Release | $0.8740 $0.9433 | ▼ −7.93% | ▼ −7.46% | $0.9810 (−12.24%) |
Jul 31, 2026 12w ago | 8-K | $0.3531 $0.3971 | ▲ +12.46% | ▲ +8.95% | $0.9810 (+177.82%) |
Jul 31, 2026 12w ago | Press Release | $0.3531 $0.3971 | ▲ +12.46% | ▲ +8.95% | $0.9810 (+177.82%) |
Jun 29, 2026 17w ago | 144 | $0.3599 $0.3200 | ▲ +11.09% | ▲ +11.69% | $0.9810 (−172.58%) |
Jun 29, 2026 17w ago | 144 | $0.3599 $0.3200 | ▲ +11.09% | ▲ +11.69% | $0.9810 (−172.58%) |
US Market Status
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