XT
AMBQ

XTX Topco’s Ambiq Micro AMBQ Stock Holding History

XTX Topco’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 		$632K Buy
+24,854
New +$741K 0.01% 1813
2025
Q4 		– Sell
-26,662
Closed -$798K – 3980
2025
Q3 		$798K Buy
+26,662
New +$972K 0.04% 722

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

XTX Topco's AMBQ Position: Q1 2026 in Review

XTX Topco opened a new position in Ambiq Micro (AMBQ) in Q1 2026: 24,854 shares worth $632K. The stake represents 0.01% of the portfolio and ranks #1813 among its holdings. This is a return to the name: XTX Topco previously reported a position in AMBQ as recently as Q3 2025.

XTX Topco first reported a position in AMBQ in Q3 2025 and has held it in 2 quarters since. The position peaked at $798K in Q3 2025. 97 funds tracked by Wall St. Rank hold AMBQ as of Q1 2026.

  • XTX Topco held 24,854 shares of Ambiq Micro worth $632K as of Q1 2026.
  • Ambiq Micro was a new XTX Topco position in Q1 2026.
  • Ambiq Micro made up 0.01% of XTX Topco's portfolio in Q1 2026, its #1813 holding.
  • XTX Topco first reported a position in Ambiq Micro in Q3 2025 and has held it in 2 quarters since.
  • XTX Topco's Ambiq Micro position peaked at $798K in Q3 2025.
  • 97 funds tracked by Wall St. Rank held Ambiq Micro as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.