February 18, 2026 · Form 4 insider transaction
HSIEH Wen Hsuan bought 238,931 shares of AMBQ at $12.60 per share, a transaction worth $3.01M. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.
The Reporting Person exercises sole voting and dispositive control over the shares held by Matter Venture Partners Fund I, L.P.