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 Q2	$4.95K	Buy	479 +15	+3%	+$155	﹤0.01%	8994
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

GCIA

Gabelli & Co Investment Advisers Rye, New York $688M AUM 63.39% 1-Year Est. Return

Gabelli Funds Rye, New York $15.7B AUM 36.4% 1-Year Est. Return

HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

Clear Street New York $39.5B AUM 124.03% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return

UBS Group's QUMSU Position: Q2 2026 in Review

UBS Group increased its Quantumsphere Acquisition Corp Units (QUMSU) stake by 3.2% in Q2 2026, buying an estimated $155 and bringing the position to 479 shares worth $4.95K. The position accounts for ﹤0.01% of the portfolio, ranked #8994.

UBS Group first reported a position in QUMSU in Q4 2025 and has held it in 3 quarters since. 7 funds tracked by Wall St. Rank hold QUMSU as of Q2 2026.

UBS Group held 479 shares of Quantumsphere Acquisition Corp Units worth $4.95K as of Q2 2026.
UBS Group bought 15 Quantumsphere Acquisition Corp Units shares in Q2 2026, an estimated $155.
Quantumsphere Acquisition Corp Units made up ﹤0.01% of UBS Group's portfolio in Q2 2026, its #8994 holding.
UBS Group first reported a position in Quantumsphere Acquisition Corp Units in Q4 2025 and has held it in 3 quarters since.
7 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp Units as of Q2 2026.

Based on UBS Group's 13F filing for Q2 2026, filed 13 Aug 2026.