Ambiq Micro, Inc. AMBQ

Set alert

45.77 USD +7.21 (+18.70%)

At closeNov 10, 2026, 7:39 AM EST

45.79 +0.02 +0.04%

Pre-market · Nov 10, 7:39 AM ET

38.95 Day range 46.41

22.12 52-week range 91.61

Held by insiders 4.86%

Held by institutions 84.44%

Float held by institutions 88.75%

Institutions 258

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	5.71%	1,380,623	63.47M	Jun 29, 2026
T. Rowe Price Investment Management, Inc.	4.16%	1,006,359	46.27M	Jun 29, 2026
Shaw D.E. & Co., Inc.	4.07%	983,916	45.24M	Jun 29, 2026
Atreides Management, LP	3.63%	877,123	40.33M	Jun 29, 2026
State Street Corporation	3.56%	861,979	39.63M	Jun 29, 2026
Vanguard Capital Management LLC	3.18%	768,539	35.33M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	2.66%	643,350	29.58M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.22%	536,961	24.69M	Sep 29, 2026
SPDR SERIES TRUST-State Street SPDR S&P Semiconductor ETF	2.20%	531,182	24.42M	Sep 29, 2026
AB CAP FUND, INC.-AB Small Cap Growth Portfolio	1.42%	344,525	15.84M	Sep 29, 2026
T. Rowe Price Small-Cap Stock Fund, Inc.	1.25%	301,794	13.87M	Jun 29, 2026
Needham Funds Inc-Needham Aggressive Growth Fund	1.15%	278,990	12.83M	Jun 29, 2026

AMBQ insiders
Insider	Relation	Latest transaction	Date	Shares held
CHEN SEAN CHIHHSIANG	President	Sale	Oct 4, 2026	106,268
CHEN TIMOTHY	Director	Stock Award(Grant)	Jun 7, 2026	52,575
CONNORS MICHELE KIM	General Counsel	Sale	Apr 1, 2026	60,554
ESAKA FUMIHIDE	Chief Executive Officer	Sale	Oct 1, 2026	443,900
HANSON SCOTT MCLEAN	Chief Technology Officer	Sale	Oct 1, 2026	212,546
HSIEH WEN HSUAN	Director	Stock Award(Grant)	Jun 7, 2026	638,877

Ownership