13D filed by Tang, purchased $10M worth of stock: https://www.sec.gov/Archives/edgar/data/1191935/000121465923015548/d1124230sc13d.htm "On behalf of Concentra Biosciences, LLC, I am pleased to submit this non-binding proposal to acquire 100% of the equity of Theseus Pharmaceuticals, Inc. for $3.80 per share in cash, plus a contingent value right (“CVR”) representing the right to receive 80% of the net proceeds payable from any license or disposition of Theseus Pharmaceuticals’ programs (the “CVR Products”). We applaud your decision to preserve capital and pursue a strategic transaction with the objective of maximizing value for shareholders. We hope that you find that our proposal meets this objective."
Orbimed and Foresite also made an offer to take the company private: https://www.sec.gov/Archives/edgar/data/1745020/000095014223002837/eh230423669_13da4-thrx.htm, together with Tang this represents 50%+ ownership of the company. Good news for the common holders.
Management filed an 8-K this morning acknowledging the offers. I think a reverse merger is potentially off the table now.