California State Teachers Retirement System (CalSTRS)’s AtaiBeckley Inc ATAI Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio ATAI Stock Details ATAI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.39M	Buy	+264,382	New	+$1.11M	﹤0.01%	1783
2026 Q1	–	Sell	-151,453	Closed	-$619K	–	2937
2025 Q4	$619K	Buy	+151,453	New	+$715K	﹤0.01%	2004
2023 Q4	–	Sell	-110,065	Closed	-$142K	–	3072
2023 Q3	$142K	Buy	110,065 +545	+0.5%	+$934	﹤0.01%	2547
2023 Q2	$188K	Buy	109,520 +231	+0.2%	+$425	﹤0.01%	2555
2023 Q1	$198K	Buy	109,289 +3,942	+4%	+$6.68K	﹤0.01%	2575
2022 Q4	$280K	Buy	105,347 +1,624	+2%	+$4.93K	﹤0.01%	2546
2022 Q3	$343K	Buy	103,723 +1,956	+2%	+$8.04K	﹤0.01%	2488
2022 Q2	$370K	Buy	+101,767	New	+$416K	﹤0.01%	2513

Other funds holding ATAI

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

DTC

Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Candriam SCA Strassen, Luxembourg, Luxembourg $22.2B AUM 58.34% 1-Year Est. Return

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

California State Teachers Retirement System (CalSTRS) opened a new position in AtaiBeckley Inc (ATAI) in Q2 2026: 264,382 shares worth $1.39M. The stake represents ﹤0.01% of the portfolio and ranks #1783 among its holdings. This is a return to the name: California State Teachers Retirement System (CalSTRS) previously reported a position in ATAI as recently as Q4 2025.

California State Teachers Retirement System (CalSTRS) first reported a position in ATAI in Q2 2022 and has held it in 8 quarters since. 242 funds tracked by Wall St. Rank hold ATAI as of Q2 2026.

California State Teachers Retirement System (CalSTRS) held 264,382 shares of AtaiBeckley Inc worth $1.39M as of Q2 2026.
AtaiBeckley Inc was a new California State Teachers Retirement System (CalSTRS) position in Q2 2026.
AtaiBeckley Inc made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #1783 holding.
California State Teachers Retirement System (CalSTRS) first reported a position in AtaiBeckley Inc in Q2 2022 and has held it in 8 quarters since.
242 funds tracked by Wall St. Rank held AtaiBeckley Inc as of Q2 2026.

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