Company profile
Werewolf Therapeutics, Inc. Insider Trading
HOWLEvery SEC Form 4 insider trading filing for Werewolf Therapeutics, Inc. (HOWL) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001785530
- Filings
- 93
- Insiders
- 33
- Last filing
- 2026-07-07
Activity summary
No insider transactions in the last 30 days. The most recent was on July 7, 2026, when Luke Evnin sold 107,429 shares. 93 filings from 33 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Werewolf Therapeutics, Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $6.3M.
90 day insight
Over the last 90 days, Werewolf Therapeutics, Inc. insiders filed 3 Form 4 transactions, none of which were open-market purchases or sales.
- Most active insider: Luke Evnin with 3 transactions totaling $92K.
- Largest single sale: $47K by Luke Evnin on Jun 29, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 7, 2026 | Luke Evnin | HOWL | Sale10b5 | 107,429 | $0.31 | $33K |
| Jul 6, 2026 | Luke Evnin | HOWL | Sale10b5 | 35,770 | $0.32 | $11K |
| Jun 29, 2026 | Luke Evnin | HOWL | Sale10b5 | 157,084 | $0.30 | $47K |
| Jun 17, 2026 | RA CAPITAL MANAGEMENT, L.P. | HOWL | Sale | 389,216 | $0.35 | $136K |
| Jun 17, 2026 | RA CAPITAL MANAGEMENT, L.P. | HOWL | Sale | 27,695 | $0.35 | $10K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=HOWL" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Werewolf Therapeutics, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →