Ken Griffin’s Ambiq Micro AMBQ Stock Holding History

Ken Griffin’s Portfolio AMBQ Stock Details AMBQ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-60,000	Closed	-$1.8M	–	14667
2025 Q3	$1.8M	Buy	+60,000	New	+$2.19M	﹤0.01%	6295

Other funds holding AMBQ

Atreides Management Boston, Massachusetts $5B AUM 78.34% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Kadensa Capital Central, Hong Kong $718M AUM 38.33% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

SSA

Schonfeld Strategic Advisors New York $14.2B AUM 37.17% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return

SAM

Silvercrest Asset Management New York $13.8B AUM 28.39% 1-Year Est. Return

Ken Griffin's AMBQ Position: Q4 2025 in Review

Ken Griffin sold out of Ambiq Micro (AMBQ) in Q4 2025, closing a stake of 60,000 shares — an estimated $1.8M sold.

Ken Griffin first reported a position in AMBQ in Q3 2025 and held it in 1 quarter. The position peaked at $1.8M in Q3 2025. 75 funds tracked by Wall St. Rank hold AMBQ as of Q4 2025.

Ken Griffin reported no remaining Ambiq Micro position as of Q4 2025 after selling out during the quarter.
Ken Griffin sold 60,000 Ambiq Micro shares in Q4 2025, an estimated $1.8M.
Ken Griffin first reported a position in Ambiq Micro in Q3 2025 and held it in 1 quarter.
Ken Griffin's Ambiq Micro position peaked at $1.8M in Q3 2025.
75 funds tracked by Wall St. Rank held Ambiq Micro as of Q4 2025.

Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.