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John Overdeck’s ASP Isotopes ASPI Stock Holding History

John Overdeck’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
Q1 		– Sell
-356,237
Closed -$1.91M – 4574
2025
Q4 		$1.91M Buy
356,237
+18,992
+6% +$151K ﹤0.01% 2472
2025
Q3 		$3.24M Sell
337,245
-5,667
-2% -$52.3K ﹤0.01% 1796
2025
Q2 		$2.52M Buy
342,912
+139,845
+69% +$938K ﹤0.01% 1666
2025
Q1 		$952K Sell
203,067
-234,118
-54% -$1.17M ﹤0.01% 2208
2024
Q4 		$1.98M Buy
+437,185
New +$2.33M ﹤0.01% 1724

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

John Overdeck's ASPI Position: Q1 2026 in Review

John Overdeck sold out of ASP Isotopes (ASPI) in Q1 2026, closing a stake of 356,237 shares — an estimated $1.91M sold.

John Overdeck first reported a position in ASPI in Q4 2024 and held it in 5 quarters. The position peaked at $3.24M in Q3 2025. 177 funds tracked by Wall St. Rank hold ASPI as of Q1 2026.

  • John Overdeck reported no remaining ASP Isotopes position as of Q1 2026 after selling out during the quarter.
  • John Overdeck sold 356,237 ASP Isotopes shares in Q1 2026, an estimated $1.91M.
  • John Overdeck first reported a position in ASP Isotopes in Q4 2024 and held it in 5 quarters.
  • John Overdeck's ASP Isotopes position peaked at $3.24M in Q3 2025.
  • 177 funds tracked by Wall St. Rank held ASP Isotopes as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.