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
Q2 		$21.3K Hold
125,000
– – ﹤0.01% 4749
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 $784M AUM 20.59% 1-Year Est. Return
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $86.4B AUM 59.51% 1-Year Est. Return
SCM
Shaolin Capital Management Miami, Florida $2.1B AUM 64.05% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2.1B AUM 2.15% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return
HIM
HGC Investment Management Toronto, Ontario, Canada $507M AUM 6.15% 1-Year Est. Return
HCM
Highbridge Capital Management New York $4.11B AUM 26.03% 1-Year Est. Return

D.E. Shaw & Co's QUMSR Position: Q2 2026 in Review

D.E. Shaw & Co held its Quantumsphere Acquisition Corp Rights (QUMSR) position steady in Q2 2026 at 125,000 shares worth $21.3K. The position accounts for ﹤0.01% of the portfolio, ranked #4749.

D.E. Shaw & Co first reported a position in QUMSR in Q4 2025 and has held it in 3 quarters since. The position peaked at $31.3K in Q1 2026. 25 funds tracked by Wall St. Rank hold QUMSR as of Q2 2026.

  • D.E. Shaw & Co held 125,000 shares of Quantumsphere Acquisition Corp Rights worth $21.3K as of Q2 2026.
  • D.E. Shaw & Co left its Quantumsphere Acquisition Corp Rights share count unchanged in Q2 2026.
  • Quantumsphere Acquisition Corp Rights made up ﹤0.01% of D.E. Shaw & Co's portfolio in Q2 2026, its #4749 holding.
  • D.E. Shaw & Co first reported a position in Quantumsphere Acquisition Corp Rights in Q4 2025 and has held it in 3 quarters since.
  • D.E. Shaw & Co's Quantumsphere Acquisition Corp Rights position peaked at $31.3K in Q1 2026.
  • 25 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp Rights as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.