Vanguard Group’s ASP Isotopes ASPI Stock Holding History

Vanguard Group’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
2025 Q4	$34.3M	Buy	6,406,244 +1,889,481	+42%	+$15M	﹤0.01%	2368
2025 Q3	$43.5M	Buy	4,516,763 +1,241,024	+38%	+$11.4M	﹤0.01%	2225
2025 Q2	$24.1M	Buy	3,275,739 +187,687	+6%	+$1.26M	﹤0.01%	2473
2025 Q1	$14.5M	Sell	3,088,052 -93,453	-3%	-$466K	﹤0.01%	2651
2024 Q4	$14.4M	Buy	3,181,505 +360,748	+13%	+$1.92M	﹤0.01%	2754
2024 Q3	$7.84M	Buy	2,820,757 +1,071,637	+61%	+$2.85M	﹤0.01%	3076
2024 Q2	$5.35M	Buy	1,749,120 +728,101	+71%	+$2.81M	﹤0.01%	3228
2024 Q1	$4.22M	Buy	1,021,019 +844,705	+479%	+$2.61M	﹤0.01%	3363
2023 Q4	$316K	Buy	176,314 +155,853	+762%	+$227K	﹤0.01%	4150
2023 Q3	$19.4K	Buy	+20,461	New	+$21.1K	﹤0.01%	4498

Other funds holding ASPI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

RIM

Rovida Investment Management Grand Cayman, Cayman Islands $797M AUM 111.83% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

AIC

AWM Investment Company New York $903M AUM 163.47% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Vanguard Group's ASPI Position: Q4 2025 in Review

Vanguard Group increased its ASP Isotopes (ASPI) stake by 42% in Q4 2025, buying an estimated $15M and bringing the position to 6,406,244 shares worth $34.3M. The position accounts for ﹤0.01% of the portfolio, ranked #2368.

Vanguard Group first reported a position in ASPI in Q3 2023 and has held it in 10 quarters since. The position peaked at $43.5M in Q3 2025. 173 funds tracked by Wall St. Rank hold ASPI as of Q4 2025.

Vanguard Group held 6,406,244 shares of ASP Isotopes worth $34.3M as of Q4 2025.
Vanguard Group bought 1,889,481 ASP Isotopes shares in Q4 2025, an estimated $15M.
ASP Isotopes made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #2368 holding.
Vanguard Group first reported a position in ASP Isotopes in Q3 2023 and has held it in 10 quarters since.
Vanguard Group's ASP Isotopes position peaked at $43.5M in Q3 2025.
173 funds tracked by Wall St. Rank held ASP Isotopes as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.