Roubaix Capital’s Ambiq Micro AMBQ Stock Holding History

Roubaix Capital’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
2026 Q2	$4.7M	Sell	53,257 -72,564	-58%	-$4.3M	1.69%	34
2026 Q1	$3.2M	Buy	+125,821	New	+$3.75M	1.49%	39

Other funds holding AMBQ

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

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Atreides Management Boston, Massachusetts $14.3B AUM 116.01% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

NIM

Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return

Roubaix Capital's AMBQ Position: Q2 2026 in Review

Roubaix Capital reduced its Ambiq Micro (AMBQ) stake by 58% in Q2 2026, selling an estimated $4.3M and leaving 53,257 shares worth $4.7M. The position accounts for 1.69% of the portfolio, ranked #34.

Roubaix Capital first reported a position in AMBQ in Q1 2026 and has held it in 2 quarters since. 185 funds tracked by Wall St. Rank hold AMBQ as of Q2 2026.

Roubaix Capital held 53,257 shares of Ambiq Micro worth $4.7M as of Q2 2026.
Roubaix Capital sold 72,564 Ambiq Micro shares in Q2 2026, an estimated $4.3M.
Ambiq Micro made up 1.69% of Roubaix Capital's portfolio in Q2 2026, its #34 holding.
Roubaix Capital first reported a position in Ambiq Micro in Q1 2026 and has held it in 2 quarters since.
185 funds tracked by Wall St. Rank held Ambiq Micro as of Q2 2026.

Based on Roubaix Capital's 13F filing for Q2 2026, filed 10 Aug 2026.