OtherAug 21, 2026Pending
🇺🇸 United States

Werewolf Therapeutics, Inc.Ambros Therapeutics, Inc.

Healthcare › Pharmaceuticals

Equity value$47.5MEquity value
AnnouncedAug 21, 2026
ConsiderationStock
StructureOne-step merger
RegionNorth America
Cross-borderNo
Contingent paymentYes

Overview

Ambros Therapeutics agreed to a reverse merger with Werewolf Therapeutics in an all-stock transaction, with the exchange ratio based on an implied value of $500 million for Ambros and $47.5 million for Werewolf. Werewolf stockholders also receive a contingent value right tied to proceeds from dispositions of legacy assets.

Deal rationale

The merger gives Werewolf a late-stage asset, neridronate for CRPS-1, and a concurrent $150 million private placement to fund the combined company through Phase 3 results.

AI-generated from the SEC filing
PendingHealthcare › PharmaceuticalsUnited StatesNorth America

Timeline

  1. AnnouncedAug 21, 2026

    Deal announced.

    Filing

Valuation and terms

Equity value$47.5MHeadline figure
Enterprise valueUndisclosed
ConsiderationStock

Advisors

Buy-side
None listed
Sell-side
PSPiper Sandler

Parties

Target
Werewolf Therapeutics, Inc.
Headquarters
United States
Ticker
HOWL
Acquirer
Ambros Therapeutics, Inc.
Headquarters
United States
Ticker
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