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Fumihide Esaka, Chief Executive Officer at Ambiq Micro, sold AMBQ on Oct 15, 2026

Data as of Oct 16

▼ SELL$143K2,800 shares at $51.15Fumihide Esaka Chief Executive OfficerAMBQ Ambiq Micro, Inc.
Watch AMBQ
Traded
Oct 15, 2026
Disclosed
Oct 16, 2026
Filed
1 day 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 15, 2026TRADEDDISCLOSED
AMBQSimilar stocks (XLK — its sector index fund), rebased to AMBQ's price on the disclosure day
AMBQ since disclosure
0.0%
after the sale
Similar stocks (XLK) since disclosure
0.0%
XLK — its sector index fund

Change in closing price from Oct 16, 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.$25Kdisclosed Oct 16 · filed 1 day after the trade
  2. ▼ SELLFumihide Esaka Chief Executive OfficerAMBQ Ambiq Micro, Inc.$62.2Kdisclosed Oct 16 · filed 1 day after the trade
  3. ▼ SELLFumihide Esaka Chief Executive OfficerAMBQ Ambiq Micro, Inc.$24.6Kdisclosed Oct 16 · filed 1 day after the trade

See every trade on AMBQ →