HCM
QUMSR

Highbridge Capital Management’s Quantumsphere Acquisition Corp Rights QUMSR Stock Holding History

Highbridge Capital Management’s Portfolio QUMSR Stock Details QUMSR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$173K Buy
690,404
+6,367
+0.9% +$1.39K 0.01% 197
2025
Q4 		$144K Sell
684,037
-15,963
-2% -$4.16K ﹤0.01% 172
2025
Q3 		$133K Buy
+700,000
New +$133K 0.01% 170

Other funds holding QUMSR

HCI
Harraden Circle Investments New York $499M AUM 24.03% 1-Year Est. Return
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return
SCM
Shaolin Capital Management Miami, Florida $2.71B AUM 64.83% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2B AUM 0.66% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return
LA
Linden Advisors New York $17.9B AUM 1.72% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return
HIM
HGC Investment Management Toronto, Ontario, Canada $451M AUM 8.78% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
CS
Clear Street New York $24.6B AUM 56.26% 1-Year Est. Return

Highbridge Capital Management's QUMSR Position: Q1 2026 in Review

Highbridge Capital Management increased its Quantumsphere Acquisition Corp Rights (QUMSR) stake by 0.93% in Q1 2026, buying an estimated $1.39K and bringing the position to 690,404 shares worth $173K. The position accounts for 0.01% of the portfolio, ranked #197.

Highbridge Capital Management first reported a position in QUMSR in Q3 2025 and has held it in 3 quarters since. 24 funds tracked by Wall St. Rank hold QUMSR as of Q1 2026.

  • Highbridge Capital Management held 690,404 shares of Quantumsphere Acquisition Corp Rights worth $173K as of Q1 2026.
  • Highbridge Capital Management bought 6,367 Quantumsphere Acquisition Corp Rights shares in Q1 2026, an estimated $1.39K.
  • Quantumsphere Acquisition Corp Rights made up 0.01% of Highbridge Capital Management's portfolio in Q1 2026, its #197 holding.
  • Highbridge Capital Management first reported a position in Quantumsphere Acquisition Corp Rights in Q3 2025 and has held it in 3 quarters since.
  • 24 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp Rights as of Q1 2026.

Based on Highbridge Capital Management's 13F filing for Q1 2026, filed 15 May 2026.