This Form 144 is a routine notice of intention to sell by a large institutional shareholder. No material impact on stock price is expected. Monitor for any subsequent Form 4 filings to confirm actual sales, but the small size suggests no urgency.
Price Chart
Executive Summary
MPM Asset Management LLC, a major shareholder of Werewolf Therapeutics, filed a Form 144 indicating intent to sell 20,608 shares. The estimated proceeds are approximately $15,250, representing a negligible fraction of the company's $36M market cap. The sale appears to be a routine portfolio adjustment by an institutional investor.
Key Facts
- MPM Asset Management LLC filed Form 144 on April 29, 2026.
- Proposed sale of 20,608 shares of common stock.
- Estimated proceeds of $15,249.92.
- The sale represents a small portion of the company's $36M market cap.
- No officer or director is selling; the filer is an institutional shareholder.
Financial Impact
Proceeds of ~$15,250, immaterial relative to market cap of $36M.
Risk Factors
- If the selling shareholder accelerates sales, it could create minor selling pressure.
- No other risks identified 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) | 0001628280-26-028440 |
| Document: 0001628280-26-028440-index.html | 0001628280-26-028440 |
| Document: 0001628280-26-028440.txt | 0001628280-26-028440 |
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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