Home / Going-concern warnings / Werewolf Therapeutics, Inc.

3/5Werewolf Therapeutics, Inc. (HOWL): Going-concern doubt

Filed 2025-11-04 路 Form 10-Q 路 Accession 0001785530-25-000031 micro

Market data

Price before filing: $1.31 (2025-11-03 close, split/dividend-adjusted)
Market cap at flag: $55.7M (2025-11-04) 路 Latest: $47.6M (2026-10-16)

What happened next

WindowHOWLSPYvs SPY
30 days-23.9%+0.2%-24.1%2025-12-04
90 days-48.2%+2.1%-50.3%2026-02-02
180 days-47.3%+5.7%-53.0%2026-05-04

Return from the last close before the filing date to the first close on/after the window end. Pending windows have not fully elapsed. Past performance says nothing certain about the future.

Insider trading around this filing

90 days before the flag: 3 insiders sold $2.2M (18 sales)
30 days after: 3 insiders sold $3.7M (66 sales)

DateInsiderTypeSharesPriceValue10b5-1 planSource
2025-10-27EVNIN LUKE
Director
Sale46,664$1.72$80KyesForm 4
2025-10-27GADICKE ANSBERT (+6 joint filers)
10% owner
Sale72,709$1.72$125KyesForm 4
2025-10-27MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale72,709$1.72$125KyesForm 4
2025-10-28EVNIN LUKE
Director
Sale44,327$1.64$73KyesForm 4
2025-10-28GADICKE ANSBERT (+6 joint filers)
10% owner
Sale69,068$1.64$113KyesForm 4
2025-10-28MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale69,068$1.64$113KyesForm 4
2025-10-29EVNIN LUKE
Director
Sale86,154$1.55$134KyesForm 4
2025-10-29GADICKE ANSBERT (+6 joint filers)
10% owner
Sale134,240$1.55$208KyesForm 4
2025-10-29MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale134,240$1.55$208KyesForm 4
2025-10-30EVNIN LUKE
Director
Sale55,795$1.43$80KyesForm 4
2025-10-30GADICKE ANSBERT (+6 joint filers)
10% owner
Sale86,936$1.43$124KyesForm 4
2025-10-30MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale86,936$1.43$124KyesForm 4
2025-10-31EVNIN LUKE
Director
Sale73,192$1.28$94KyesForm 4
2025-10-31GADICKE ANSBERT (+6 joint filers)
10% owner
Sale114,044$1.28$146KyesForm 4
2025-10-31MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale114,044$1.28$146KyesForm 4
2025-11-03EVNIN LUKE
Director
Sale60,369$1.29$78KyesForm 4
2025-11-03GADICKE ANSBERT (+6 joint filers)
10% owner
Sale94,063$1.29$121KyesForm 4
2025-11-03MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale94,063$1.29$121KyesForm 4
2025-11-04: red flag filed
2025-11-04EVNIN LUKE
Director
Sale90,164$1.22$110KyesForm 4
2025-11-04GADICKE ANSBERT (+6 joint filers)
10% owner
Sale140,488$1.22$171KyesForm 4
2025-11-04MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale140,488$1.22$171KyesForm 4
2025-11-05EVNIN LUKE
Director
Sale30,774$1.22$38KyesForm 4
2025-11-05GADICKE ANSBERT (+6 joint filers)
10% owner
Sale47,950$1.22$58KyesForm 4
2025-11-05MPM BioVentures 2014, L.P. (+4 joint filers)
10% owner
Sale47,950$1.22$58KyesForm 4
2025-11-06EVNIN LUKE
Director
Sale34,947$1.21$42KyesForm 4

Showing 25 of 84 transactions.

Open-market purchases and sales (Form 4 codes P and S) by officers, directors and 10% owners, by transaction date, from 2025-08-06 to 2025-12-04. Excludes option exercises, grants, gifts and tax withholding. Amended filings replace the originals; joint filings count once. Foreign private issuers do not file Form 4. Many insider sales are pre-scheduled (10b5-1 plans) and are not by themselves a sign of wrongdoing.

Verified excerpt

"These conditions raise substantial doubt about our ability to continue as a going concern for at least twelve months from the date these condensed consolidated financial statements are issued in this Form 10-Q. We are currently evaluating plans to mitigate the conditions which raise substantial doubt about our ability to continue as a going concern."

Quoted from the filing. Source

What this means

The filing states that substantial doubt exists about the company's ability to continue as a going concern: it may not have enough cash to last the next 12 months. Expect dilution, debt deals or worse. An auditor's going-concern paragraph is the strongest form of this warning.

Source: management disclosure in Form 10-Q (period 2025-09-30)

Why this score: quarterly (unaudited) disclosure

Read the original filing on SEC.gov →

Not investment advice. Automated summary; verify against the filing.

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