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
Q2 		$1.93M Buy
21,856
+7,819
+56% +$463K ﹤0.01% 1955
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

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
AM
Atreides Management Boston, Massachusetts $14.3B AUM 116.01% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Geode Capital Management
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

RhumbLine Advisers's AMBQ Position: Q2 2026 in Review

RhumbLine Advisers increased its Ambiq Micro (AMBQ) stake by 56% in Q2 2026, buying an estimated $463K and bringing the position to 21,856 shares worth $1.93M. The position accounts for ﹤0.01% of the portfolio, ranked #1955.

RhumbLine Advisers first reported a position in AMBQ in Q3 2025 and has held it in 4 quarters since. 185 funds tracked by Wall St. Rank hold AMBQ as of Q2 2026.

  • RhumbLine Advisers held 21,856 shares of Ambiq Micro worth $1.93M as of Q2 2026.
  • RhumbLine Advisers bought 7,819 Ambiq Micro shares in Q2 2026, an estimated $463K.
  • Ambiq Micro made up ﹤0.01% of RhumbLine Advisers's portfolio in Q2 2026, its #1955 holding.
  • RhumbLine Advisers first reported a position in Ambiq Micro in Q3 2025 and has held it in 4 quarters since.
  • 185 funds tracked by Wall St. Rank held Ambiq Micro as of Q2 2026.

Based on RhumbLine Advisers's 13F filing for Q2 2026, filed 12 Aug 2026.