Ambiq Micro, Inc. AMBQ

Set alert

35.17 USD -6.37 (-15.33%)

At closeNov 5, 2026, 4:03 PM EST

35.50 +0.33 +0.94%

After hours · Nov 5, 4:03 PM ET

34.96 Day range 39.50

22.12 52-week range 91.61

Held by insiders 4.86%

Held by institutions 83.43%

Float held by institutions 87.69%

Institutions 255

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	5.71%	1,380,623	57.30M	Jun 29, 2026
T. Rowe Price Investment Management, Inc.	4.16%	1,006,359	41.76M	Jun 29, 2026
Shaw D.E. & Co., Inc.	4.07%	983,916	40.83M	Jun 29, 2026
Atreides Management, LP	3.63%	877,123	36.40M	Jun 29, 2026
State Street Corporation	3.56%	861,979	35.77M	Jun 29, 2026
Vanguard Capital Management LLC	3.18%	768,539	31.89M	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	26.70M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.22%	536,961	22.28M	Sep 29, 2026
SPDR SERIES TRUST-State Street SPDR S&P Semiconductor ETF	2.20%	531,182	22.04M	Sep 29, 2026
AB CAP FUND, INC.-AB Small Cap Growth Portfolio	1.46%	353,409	14.67M	Aug 30, 2026
T. Rowe Price Small-Cap Stock Fund, Inc.	1.25%	301,794	12.52M	Jun 29, 2026
Needham Funds Inc-Needham Aggressive Growth Fund	1.15%	278,990	11.58M	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

Held by funds