Werewolf Therapeutics, Inc.
Werewolf Therapeutics, Inc. (HOWL) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · HOWL · as of Jun 9, 2026
Activity summary
Buy transactions
3
P-Purchase only
Sell transactions
145
12 Months
Buy/Sell ratio
0.02
Buy/Sell (by trades)
Overall sentiment
Werewolf Therapeutics, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
HOWL insider buying and selling by quarter
HOWL insider selling · HOWL insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Active insiders
Most active in past 12 months · HOWL ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
HOWL executive sell shares · HOWL board member insider trading · HOWL insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 4, 2026 | EVNIN LUKE Director | Sale | 20,072 | $9K | Form 4 |
| Jun 5, 2026 | EVNIN LUKE Director | Sale | 24,946 | $10K | Form 4 |
| Jun 8, 2026 | EVNIN LUKE Director | Sale | 60,547 | $24K | Form 4 |
| Jun 1, 2026 | EVNIN LUKE Director | Sale | 80,459 | $38K | Form 4 |
| Jun 2, 2026 | EVNIN LUKE Director | Sale | 29,595 | $13K | Form 4 |
| Jun 3, 2026 | EVNIN LUKE Director | Sale | 29,749 | $12K | Form 4 |
| May 27, 2026 | EVNIN LUKE Director | Sale | 80,852 | $39K | Form 4 |
| May 28, 2026 | EVNIN LUKE Director | Sale | 27,698 | $13K | Form 4 |
| May 29, 2026 | EVNIN LUKE Director | Sale | 32,556 | $15K | Form 4 |
| May 21, 2026 | EVNIN LUKE Director | Sale | 36,387 | $15K | Form 4 |
| May 22, 2026 | EVNIN LUKE Director | Sale | 87,425 | $39K | Form 4 |
| May 26, 2026 | EVNIN LUKE Director | Sale | 67,950 | $32K | Form 4 |
| May 18, 2026 | EVNIN LUKE Director | Sale | 22,184 | $11K | Form 4 |
| May 19, 2026 | EVNIN LUKE Director | Sale | 62,970 | $28K | Form 4 |
| May 20, 2026 | EVNIN LUKE Director | Sale | 85,895 | $37K | Form 4 |
| May 13, 2026 | EVNIN LUKE Director | Sale | 44,679 | $24K | Form 4 |
| May 8, 2026 | EVNIN LUKE Director | Sale | 305,741 | $214K | Form 4 |
| May 11, 2026 | EVNIN LUKE Director | Sale | 33,948 | $23K | Form 4 |
| May 12, 2026 | EVNIN LUKE Director | Sale | 67,885 | $43K | Form 4 |
| May 8, 2026 | RA CAPITAL MANAGEMENT, L.P. 10 percent owner | Sale | 351,514 | $250K | Form 4 |
| May 11, 2026 | RA CAPITAL MANAGEMENT, L.P. 10 percent owner | Sale | 81,678 | $55K | Form 4 |
| May 12, 2026 | RA CAPITAL MANAGEMENT, L.P. 10 percent owner | Sale | 94,432 | $60K | Form 4 |
| May 8, 2026 | RA CAPITAL MANAGEMENT, L.P. 10 percent owner | Sale | 25,012 | $18K | Form 4 |
| May 11, 2026 | RA CAPITAL MANAGEMENT, L.P. 10 percent owner | Sale | 5,812 | $4K | Form 4 |
| May 12, 2026 | RA CAPITAL MANAGEMENT, L.P. 10 percent owner | Sale | 6,719 | $4K | Form 4 |
RA CAPITAL MANAGEMENT, L.P.
10 percent owner
Date
May 8
Shares
351,514
Price
$0.71
Value
$250K
RA CAPITAL MANAGEMENT, L.P.
10 percent owner
Date
May 11
Shares
81,678
Price
$0.67
Value
$55K
RA CAPITAL MANAGEMENT, L.P.
10 percent owner
Date
May 12
Shares
94,432
Price
$0.64
Value
$60K
RA CAPITAL MANAGEMENT, L.P.
10 percent owner
Date
May 8
Shares
25,012
Price
$0.71
Value
$18K
RA CAPITAL MANAGEMENT, L.P.
10 percent owner
Date
May 11
Shares
5,812
Price
$0.67
Value
$4K
RA CAPITAL MANAGEMENT, L.P.
10 percent owner
Date
May 12
Shares
6,719
Price
$0.64
Value
$4K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About HOWL insider trading
HOWL insider trades
Werewolf Therapeutics, Inc. (HOWL) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including EVNIN LUKE (Director), MPM BioVentures 2014, L.P. (10% Owner), GADICKE ANSBERT (10% Owner). Over the past 12 months, 4 insiders have filed transactions with the SEC. HOWL insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Werewolf Therapeutics, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
HOWL insider trading · 5 questionsThe insiders of Werewolf Therapeutics, Inc. (HOWL) include executives and directors such as EVNIN LUKE (Director), MPM BioVentures 2014, L.P. (10% Owner), GADICKE ANSBERT (10% Owner), among others. Over the past 12 months, 4 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026