Simplex Trading’s AtaiBeckley Inc ATAI Stock Holding History

Simplex Trading’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 Q1	–	Sell	-53,065	Closed	-$200K	–	9014
2025 Q4	$217K	Sell	53,065 -84,577	-61%	-$399K	﹤0.01%	4151
2025 Q3	$728K	Buy	137,642 +58,109	+73%	+$236K	﹤0.01%	3375
2025 Q2	$174K	Buy	+79,533	New	+$143K	﹤0.01%	4649
2025 Q1	–	Sell	-121,984	Closed	-$205K	–	8474
2024 Q4	$162K	Buy	121,984 +120,356	+7,393%	+$160K	﹤0.01%	4720
2024 Q3	$1K	Sell	1,628 -2,166	-57%	-$2.89K	﹤0.01%	8126
2024 Q2	$5K	Buy	+3,794	New	+$6.83K	﹤0.01%	7827
2024 Q1	–	Sell	-16,545	Closed	-$30.4K	–	8810
2023 Q4	$23K	Buy	+16,545	New	+$20.6K	﹤0.01%	6793
2023 Q1	–	Sell	-63,064	Closed	-$107K	–	8966
2022 Q4	$167K	Buy	+63,064	New	+$191K	﹤0.01%	4450
2022 Q2	–	Sell	-146,818	Closed	-$600K	–	9896
2022 Q1	$747K	Buy	146,818 +43,614	+42%	+$242K	﹤0.01%	3305
2021 Q4	$787K	Buy	+103,204	New	+$1.25M	﹤0.01%	3195

Other funds holding ATAI

DTC

Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

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

Candriam SCA Strassen, Luxembourg, Luxembourg $19.3B AUM 39.18% 1-Year Est. Return

Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

Simplex Trading's ATAI Position: Q1 2026 in Review

Simplex Trading sold out of AtaiBeckley Inc (ATAI) in Q1 2026, closing a stake of 53,065 shares — an estimated $200K sold.

Simplex Trading first reported a position in ATAI in Q4 2021 and held it in 10 quarters. The position peaked at $787K in Q4 2021. 183 funds tracked by Wall St. Rank hold ATAI as of Q1 2026.

Simplex Trading reported no remaining AtaiBeckley Inc position as of Q1 2026 after selling out during the quarter.
Simplex Trading sold 53,065 AtaiBeckley Inc shares in Q1 2026, an estimated $200K.
Simplex Trading first reported a position in AtaiBeckley Inc in Q4 2021 and held it in 10 quarters.
Simplex Trading's AtaiBeckley Inc position peaked at $787K in Q4 2021.
183 funds tracked by Wall St. Rank held AtaiBeckley Inc as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.