As of the latest Form 4 filed Jul 8, 2026.
What Werewolf Therapeutics Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 30 most recent filings for HOWL.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-08 | 2026-07-07 | EVNIN LUKE Director | SSale | −107K | $0.31 | $33.3K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | EVNIN LUKE, Director | SSale | −35.8K | $0.32 | $11.4K | Yes (planned) | Form 4 ↗ |
| 2026-06-29 | 2026-06-29 | EVNIN LUKE Director | SSale | −157K | $0.30 | $47.1K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | RA CAPITAL MANAGEMENT, L.P. 10% owner | SSale | −27.7K | $0.35 | $9.69K | No | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −389K | $0.35 | $136K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-16 | RA CAPITAL MANAGEMENT, L.P. 10% owner | SSale | −9.94K | $0.37 | $3.68K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-16 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −140K | $0.37 | $51.7K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −8.55K | $0.39 | $3.34K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −120K | $0.39 | $46.9K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-12 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −11.3K | $0.40 | $4.53K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-12 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −159K | $0.40 | $63.6K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-11 | RA CAPITAL MANAGEMENT, L.P. 10% owner | SSale | −17.4K | $0.38 | $6.63K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-11 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −245K | $0.38 | $93.1K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −3.05K | $0.37 | $1.13K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −42.9K | $0.37 | $15.9K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −24.6K | $0.37 | $9.09K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-09 | RA CAPITAL MANAGEMENT, L.P., 10% owner | SSale | −345K | $0.37 | $128K | No | Form 4 ↗ |
| 2026-06-10 | 2026-06-09 | EVNIN LUKE Director | SSale | −76.9K | $0.37 | $28.5K | Yes (planned) | Form 4 ↗ |
| 2026-06-08 | 2026-06-08 | EVNIN LUKE Director | SSale | −60.5K | $0.40 | $24.2K | Yes (planned) | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | EVNIN LUKE, Director | SSale | −24.9K | $0.40 | $9.98K | Yes (planned) | Form 4 ↗ |
| 2026-06-08 | 2026-06-04 | EVNIN LUKE, Director | SSale | −20.1K | $0.44 | $8.83K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-03 | EVNIN LUKE Director | SSale | −29.7K | $0.42 | $12.5K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | EVNIN LUKE, Director | SSale | −29.6K | $0.45 | $13.3K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-01 | EVNIN LUKE, Director | SSale | −80.5K | $0.47 | $37.8K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-07 | EVNIN LUKE Director | SSale | −79.1K | $0.63 | $49.8K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-06 | EVNIN LUKE, Director | SSale | −14.6K | $0.66 | $9.66K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | EVNIN LUKE, Director | SSale | −6.86K | $0.69 | $4.73K | Yes (planned) | Form 4 ↗ |
| 2026-04-29 | 2026-04-29 | EVNIN LUKE Director | SSale | −56.6K | $0.69 | $39.0K | Yes (planned) | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | EVNIN LUKE, Director | SSale | −95.4K | $0.73 | $69.7K | Yes (planned) | Form 4 ↗ |
| 2026-04-29 | 2026-04-27 | EVNIN LUKE, Director | SSale | −53.9K | $0.85 | $45.8K | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also HOWL’s full analysis or the market-wide insider trading feed. The tabs above jump to HOWL’s other SEC data.
Source: SEC Form 4 filings for HOWL, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.