California State Teachers Retirement System (CalSTRS)’s ASP Isotopes ASPI Stock Holding History

California State Teachers Retirement System (CalSTRS)’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	$754K	Buy	121,243 +43,031	+55%	+$253K	﹤0.01%	2047
2026 Q1	$346K	Buy	78,212 +1,004	+1%	+$5.94K	﹤0.01%	2143
2025 Q4	$413K	Buy	77,208 +73,441	+1,950%	+$584K	﹤0.01%	2160
2025 Q3	$36.2K	Buy	3,767 +2	+0.1%	+$18	﹤0.01%	2350
2025 Q2	$27.7K	Hold	3,765	–	–	﹤0.01%	2405
2025 Q1	$17.7K	Hold	3,765	–	–	﹤0.01%	2572
2024 Q4	$17.1K	Hold	3,765	–	–	﹤0.01%	2667
2024 Q3	$10.5K	Buy	3,765 +893	+31%	+$2.37K	﹤0.01%	2867
2024 Q2	$8.79K	Buy	+2,872	New	+$11.1K	﹤0.01%	2940

Other funds holding ASPI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Encompass Capital Advisors New York $2.81B AUM 198.36% 1-Year Est. Return

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 Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

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

California State Teachers Retirement System (CalSTRS)'s ASPI Position: Q2 2026 in Review

California State Teachers Retirement System (CalSTRS) increased its ASP Isotopes (ASPI) stake by 55% in Q2 2026, buying an estimated $253K and bringing the position to 121,243 shares worth $754K. The position accounts for ﹤0.01% of the portfolio, ranked #2047.

California State Teachers Retirement System (CalSTRS) first reported a position in ASPI in Q2 2024 and has held it in 9 quarters since. 185 funds tracked by Wall St. Rank hold ASPI as of Q2 2026.

California State Teachers Retirement System (CalSTRS) held 121,243 shares of ASP Isotopes worth $754K as of Q2 2026.
California State Teachers Retirement System (CalSTRS) bought 43,031 ASP Isotopes shares in Q2 2026, an estimated $253K.
ASP Isotopes made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #2047 holding.
California State Teachers Retirement System (CalSTRS) first reported a position in ASP Isotopes in Q2 2024 and has held it in 9 quarters since.
185 funds tracked by Wall St. Rank held ASP Isotopes as of Q2 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2026, filed 24 Aug 2026.