UBS Group
QUMSU

UBS Group’s Quantumsphere Acquisition Corp Units QUMSU Stock Holding History

UBS Group’s Portfolio QUMSU Stock Details QUMSU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.69K Buy
464
+5
+1% +$51 ﹤0.01% 8898
2025
Q4 		$4.67K Buy
+459
New +$4.68K ﹤0.01% 8798

Other funds holding QUMSU

WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.21B AUM 26.02% 1-Year Est. Return
GCIA
Gabelli & Co Investment Advisers Rye, New York $674M AUM 64.52% 1-Year Est. Return
GF
Gabelli Funds Rye, New York $14.8B AUM 32.24% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
CS
Clear Street New York $24.6B AUM 56.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return

UBS Group's QUMSU Position: Q1 2026 in Review

UBS Group increased its Quantumsphere Acquisition Corp Units (QUMSU) stake by 1.1% in Q1 2026, buying an estimated $51 and bringing the position to 464 shares worth $4.69K. The position accounts for ﹤0.01% of the portfolio, ranked #8898.

UBS Group first reported a position in QUMSU in Q4 2025 and has held it in 2 quarters since. 8 funds tracked by Wall St. Rank hold QUMSU as of Q1 2026.

  • UBS Group held 464 shares of Quantumsphere Acquisition Corp Units worth $4.69K as of Q1 2026.
  • UBS Group bought 5 Quantumsphere Acquisition Corp Units shares in Q1 2026, an estimated $51.
  • Quantumsphere Acquisition Corp Units made up ﹤0.01% of UBS Group's portfolio in Q1 2026, its #8898 holding.
  • UBS Group first reported a position in Quantumsphere Acquisition Corp Units in Q4 2025 and has held it in 2 quarters since.
  • 8 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp Units as of Q1 2026.

Based on UBS Group's 13F filing for Q1 2026, filed 5 May 2026.