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Fumihide Esaka, Chief Executive Officer at Ambiq Micro, sold AMBQ on Oct 2, 2026

Data as of Oct 16

▼ SELL$492K7,113 shares at $69.11Fumihide Esaka Chief Executive OfficerAMBQ Ambiq Micro, Inc.
Watch AMBQ
Traded
Oct 2, 2026
Disclosed
Oct 6, 2026
Filed
4 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Fumihide Esaka, Chief Executive Officer at Ambiq Micro, sold AMBQ on Oct 2, 2026TRADEDDISCLOSED
AMBQSimilar stocks (XLK — its sector index fund), rebased to AMBQ's price on the disclosure day
AMBQ since disclosure
−21.1%
after the sale
Similar stocks (XLK) since disclosure
−9.2%
XLK — its sector index fund

Change in closing price from Oct 6, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▼ SELLFumihide Esaka Chief Executive OfficerAMBQ Ambiq Micro, Inc.$599Kdisclosed Oct 6 · filed 4 days after the trade
  2. ▼ SELLFumihide Esaka Chief Executive OfficerAMBQ Ambiq Micro, Inc.$61.9Kdisclosed Oct 6 · filed 4 days after the trade

See every trade on AMBQ →