secwatch.observer — SEC 8-K summary ====================================== Issuer: Tarsus Pharmaceuticals, Inc. (TARS) CIK: 0001819790 Form: 8-K Filed at: 2026-09-10T20:05:37+00:00 Accession: 0001819790-26-000066 Event type: m_and_a Sentiment: positive Materiality: 0.80 Item codes: 2.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Tarsus closes $270M cash + stock buy of Alkeus; adds Stargardt drug ALK-001 --------------------------------------------------------------------------- - Up-front consideration: $270M cash plus 2,908,692 Tarsus shares to Alkeus equityholders. - Milestones up to $350M: $250M on US regulatory approval, $100M on first US sale; plus low-to-mid single-digit revenue share. - Adds ALK-001, Phase 3 oral for Stargardt disease, with FDA Breakthrough, Orphan, Fast Track, Rare Pediatric designations. - NORTHSTAR Phase 3 trial ongoing; topline data expected 2029. - Acquisition closed Sept 4, 2026; Alkeus becomes wholly-owned subsidiary. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1819790/000181979026000066/0001819790-26-000066-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1819790/000181979026000066/tars-20260904.htm HTML page: https://secwatch.observer/filing/0001819790-26-000066 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer