Ambiq Micro, Inc. (AMBQ) Institutional Ownership

Ownership Summary

The institutional landscape for Ambiq Micro, Inc. (NYSE:AMBQ) includes 72 filers as of the latest reporting cycle ending December 2025.

• The percentage of Ambiq Micro owned by institutions changed from 35.8% in September 2025 to 37.0% in December 2025, marking a slight up trend.
• Institutional share ownership changed by 14.81% QoQ, while the number of institutional owners saw an unavailable change YoY.
• A review of institutional activity for Ambiq Micro shows 42 of 72 filers increasing their positions, while 16 reduced their stake, and 14 remained unchanged.
• The total number of shares held by institutions in Ambiq Micro increased to 4.62Mn as of December 2025, a net change of up by 595.90K shares quarter on quarter, and down N/A shares year over year.
• Atreides Management, LP continues to be the largest institutional holder of Ambiq Micro as of December 31, 2025, with a position of 696.42K shares, representing 5.57% of the company's outstanding stock.
• Among the most significant buyers of Ambiq Micro during December 2025 were FRANKLIN RESOURCES INC (295.93K), First Eagle Investment Management, LLC (130.82K), WASATCH ADVISORS LP (72.09K), MILLENNIUM MANAGEMENT LLC (62.02K), MORGAN STANLEY (30.57K).
• Leading sellers of Ambiq Micro stock in December 2025 included Monashee Investment Management LLC (114.91K), Schonfeld Strategic Advisors LLC (52.28K), ALLIANCEBERNSTEIN L.P. (40.78K), NORTHERN TRUST CORP (13.69K), UBS Group AG (5.64K).
• The top 10 institutional holders of Ambiq Micro for the quarter ending December 2025 included Atreides Management, LP (696.42K), ALLIANCEBERNSTEIN L.P. (395.37K), KADENSA CAPITAL Ltd (394.99K), VANGUARD GROUP INC (328.18K), BlackRock, Inc. (307.90K), FRANKLIN RESOURCES INC (307.89K), Schonfeld Strategic Advisors LLC (221.81K), WASATCH ADVISORS LP (217.51K), First Eagle Investment Management, LLC (189.72K), SILVERCREST ASSET MANAGEMENT GROUP LLC (188.69K).