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AMBQ

Ambiq Micro, Inc.

NYSE · Technology · Semiconductors · US

$65.46
+4.99%
Ask drillr
0
Insider buys (3m)
33
Insider sells (3m)
-$17.5M
Net value (3m)
-28.5%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Sep 17, 2026Hanson Scott McLean · director, officer: Chief Technology OfficerM-Exempt7,000$8.12
Sep 17, 2026Hanson Scott McLean · director, officer: Chief Technology OfficerSale100$61
Sep 17, 2026Hanson Scott McLean · director, officer: Chief Technology OfficerSale4,947$61
Sep 17, 2026Hanson Scott McLean · director, officer: Chief Technology OfficerSale1,953$60
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale9,615$61
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale3,785$60
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt13,500$8.12
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale7,917$64
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale42,083$63
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt50,000$13
Sep 15, 2026Chen Sean Chihhsiang · officer: President and COOSale1,400$61
Sep 15, 2026Chen Sean Chihhsiang · officer: President and COOSale11,000$60
Sep 15, 2026Chen Sean Chihhsiang · officer: President and COOSale2,600$59
Sep 15, 2026Chen Sean Chihhsiang · officer: President and COOM-Exempt15,000$8.12
Sep 15, 2026ZHANG KER · directorSale900$64
Sep 15, 2026ZHANG KER · directorSale9,100$63
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt30,993$13
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt19,007$13
Sep 15, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale100$61
Sep 9, 2026Chen Sean Chihhsiang · officer: President and COOSale2,126$58
Sep 9, 2026ZHANG KER · directorSale185$57
Sep 9, 2026ZHANG KER · directorM-Exempt1,785$5.88
Sep 9, 2026Chen Sean Chihhsiang · officer: President and COOSale12,874$57
Sep 9, 2026Chen Sean Chihhsiang · officer: President and COOM-Exempt15,000$8.12
Sep 2, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt13,500$8.12
Sep 2, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt9,271$13
Sep 2, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt35,000$13
Sep 2, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale9,575$57
Sep 2, 2026Esaka Fumihide · director, officer: Chief Executive OfficerSale1,452$56
Sep 2, 2026Esaka Fumihide · director, officer: Chief Executive OfficerM-Exempt11,027$13
Institutional positioning

13F filings over the trailing two quarters

New 136Increased 99Reduced 39Sold out 10
FilerActionSharesFiled
BlackRock, Inc.Increased1,380,623Aug 7, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.New Position1,267,551May 15, 2026
BLACKROCK, INC.Increased1,013,161May 13, 2026
T. Rowe Price Investment Management, Inc.Reduced1,006,359Aug 14, 2026
D. E. Shaw & Co., Inc.New Position983,916Aug 14, 2026
Atreides Management, LPIncreased877,123Aug 14, 2026
ATREIDES MANAGEMENT, LPIncreased862,175May 18, 2026
STATE STREET CORPIncreased861,979Aug 7, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased768,539Aug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position707,404May 15, 2026
ALLIANCEBERNSTEIN L.P.Increased686,098May 15, 2026
SCHONFELD STRATEGIC ADVISORS LLCIncreased656,552May 15, 2026
TWO SIGMA INVESTMENTS, LPIncreased651,786Aug 14, 2026
ALLIANCEBERNSTEIN L.P.Reduced609,607Aug 14, 2026
FRANKLIN RESOURCES INCIncreased542,216May 13, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 17, 2026