D.E. Shaw & Co
QUMSR

D.E. Shaw & Co’s Quantumsphere Acquisition Corp Rights QUMSR Stock Holding History

D.E. Shaw & Co’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 		$31.3K Hold
125,000
– – ﹤0.01% 4368
2025
Q4 		$26.3K Buy
+125,000
New +$32.6K ﹤0.01% 4469

Other funds holding QUMSR

HCI
Harraden Circle Investments New York $499M AUM 24.03% 1-Year Est. Return
HCM
Highbridge Capital Management New York $3.09B AUM 31.19% 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

D.E. Shaw & Co's QUMSR Position: Q1 2026 in Review

D.E. Shaw & Co held its Quantumsphere Acquisition Corp Rights (QUMSR) position steady in Q1 2026 at 125,000 shares worth $31.3K. The position accounts for ﹤0.01% of the portfolio, ranked #4368.

D.E. Shaw & Co first reported a position in QUMSR in Q4 2025 and has held it in 2 quarters since. 24 funds tracked by Wall St. Rank hold QUMSR as of Q1 2026.

  • D.E. Shaw & Co held 125,000 shares of Quantumsphere Acquisition Corp Rights worth $31.3K as of Q1 2026.
  • D.E. Shaw & Co left its Quantumsphere Acquisition Corp Rights share count unchanged in Q1 2026.
  • Quantumsphere Acquisition Corp Rights made up ﹤0.01% of D.E. Shaw & Co's portfolio in Q1 2026, its #4368 holding.
  • D.E. Shaw & Co first reported a position in Quantumsphere Acquisition Corp Rights in Q4 2025 and has held it in 2 quarters since.
  • 24 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp Rights as of Q1 2026.

Based on D.E. Shaw & Co's 13F filing for Q1 2026, filed 15 May 2026.