Marshall Wace
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Marshall Wace’s ASP Isotopes ASPI Stock Holding History

Marshall Wace’s Portfolio ASPI Stock Details ASPI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$5.2M Buy
+835,656
New +$4.92M ﹤0.01% 1356
2026
Q1 		– Sell
-818,129
Closed -$4.38M – 3176
2025
Q4 		$4.38M Sell
818,129
-460,992
-36% -$3.67M ﹤0.01% 1212
2025
Q3 		$12.3M Buy
1,279,121
+1,245,184
+3,669% +$11.5M 0.01% 846
2025
Q2 		$250K Sell
33,937
-144,197
-81% -$967K ﹤0.01% 2383
2025
Q1 		$835K Buy
178,134
+30,137
+20% +$150K ﹤0.01% 1863
2024
Q4 		$670K Sell
147,997
-852,717
-85% -$4.54M ﹤0.01% 1920
2024
Q3 		$2.78M Buy
1,000,714
+455,642
+84% +$1.21M ﹤0.01% 1240
2024
Q2 		$1.67M Buy
545,072
+433,734
+390% +$1.67M ﹤0.01% 1454
2024
Q1 		$460K Buy
+111,338
New +$343K ﹤0.01% 1960

Other funds holding ASPI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
ECA
Encompass Capital Advisors New York $2.81B AUM 198.36% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
RIM
Rovida Investment Management Grand Cayman, Cayman Islands $1.47B AUM 142.45% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
ETC
Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return
AIC
AWM Investment Company New York $1.15B AUM 201.65% 1-Year Est. Return

Marshall Wace's ASPI Position: Q2 2026 in Review

Marshall Wace opened a new position in ASP Isotopes (ASPI) in Q2 2026: 835,656 shares worth $5.2M. The stake represents ﹤0.01% of the portfolio and ranks #1356 among its holdings. This is a return to the name: Marshall Wace previously reported a position in ASPI as recently as Q4 2025.

Marshall Wace first reported a position in ASPI in Q1 2024 and has held it in 9 quarters since. The position peaked at $12.3M in Q3 2025. 185 funds tracked by Wall St. Rank hold ASPI as of Q2 2026.

  • Marshall Wace held 835,656 shares of ASP Isotopes worth $5.2M as of Q2 2026.
  • ASP Isotopes was a new Marshall Wace position in Q2 2026.
  • ASP Isotopes made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #1356 holding.
  • Marshall Wace first reported a position in ASP Isotopes in Q1 2024 and has held it in 9 quarters since.
  • Marshall Wace's ASP Isotopes position peaked at $12.3M in Q3 2025.
  • 185 funds tracked by Wall St. Rank held ASP Isotopes as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.