RhumbLine Advisers
AMBQ

RhumbLine Advisers’s Ambiq Micro AMBQ Stock Holding History

RhumbLine Advisers’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
Q1 		$357K Buy
14,037
+10,629
+312% +$317K ﹤0.01% 2814
2025
Q4 		$97.1K Sell
3,408
-575
-14% -$16.5K ﹤0.01% 3484
2025
Q3 		$119K Buy
+3,983
New +$145K ﹤0.01% 3455

Other funds holding AMBQ

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AM
Atreides Management Boston, Massachusetts $5B AUM 78.34% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
SSA
Schonfeld Strategic Advisors New York $14.2B AUM 37.17% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

RhumbLine Advisers's AMBQ Position: Q1 2026 in Review

RhumbLine Advisers increased its Ambiq Micro (AMBQ) stake by 312% in Q1 2026, buying an estimated $317K and bringing the position to 14,037 shares worth $357K. The position accounts for ﹤0.01% of the portfolio, ranked #2814.

RhumbLine Advisers first reported a position in AMBQ in Q3 2025 and has held it in 3 quarters since. 97 funds tracked by Wall St. Rank hold AMBQ as of Q1 2026.

  • RhumbLine Advisers held 14,037 shares of Ambiq Micro worth $357K as of Q1 2026.
  • RhumbLine Advisers bought 10,629 Ambiq Micro shares in Q1 2026, an estimated $317K.
  • Ambiq Micro made up ﹤0.01% of RhumbLine Advisers's portfolio in Q1 2026, its #2814 holding.
  • RhumbLine Advisers first reported a position in Ambiq Micro in Q3 2025 and has held it in 3 quarters since.
  • 97 funds tracked by Wall St. Rank held Ambiq Micro as of Q1 2026.

Based on RhumbLine Advisers's 13F filing for Q1 2026, filed 12 May 2026.