Two Sigma Advisers
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Two Sigma Advisers’s AtaiBeckley Inc ATAI Stock Holding History

Two Sigma Advisers’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
-176,200
Closed -$721K – 188
2025
Q4 		$721K Buy
+176,200
New +$831K ﹤0.01% 1646
2025
Q3 		– Sell
-30,900
Closed -$67.7K – 2355
2025
Q2 		$67.7K Buy
+30,900
New +$55.4K ﹤0.01% 2238
2025
Q1 		– Sell
-26,700
Closed -$35.5K – 2387
2024
Q4 		$35.5K Buy
+26,700
New +$35.5K ﹤0.01% 2306
2024
Q3 		– Sell
-45,800
Closed -$60.9K – 2283
2024
Q2 		$60.9K Buy
45,800
+24,900
+119% +$44.9K ﹤0.01% 2351
2024
Q1 		$41.2K Sell
20,900
-40,500
-66% -$74.5K ﹤0.01% 2361
2023
Q4 		$86.6K Sell
61,400
-46,100
-43% -$57.3K ﹤0.01% 2341
2023
Q3 		$139K Sell
107,500
-60,800
-36% -$104K ﹤0.01% 2162
2023
Q2 		$289K Sell
168,300
-293,800
-64% -$541K ﹤0.01% 1990
2023
Q1 		$836K Buy
462,100
+29,300
+7% +$49.6K ﹤0.01% 1717
2022
Q4 		$1.15M Buy
432,800
+180,400
+71% +$548K ﹤0.01% 1511
2022
Q3 		$835K Buy
252,400
+56,200
+29% +$231K ﹤0.01% 1612
2022
Q2 		$714K Buy
196,200
+115,500
+143% +$472K ﹤0.01% 1761
2022
Q1 		$411K Buy
80,700
+19,400
+32% +$108K ﹤0.01% 2077
2021
Q4 		$468K Buy
+61,300
New +$744K ﹤0.01% 1940

Other funds holding ATAI

DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
CS
Candriam SCA Strassen, Luxembourg, Luxembourg $22.2B AUM 58.34% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

Two Sigma Advisers's ATAI Position: Q1 2026 in Review

Two Sigma Advisers sold out of AtaiBeckley Inc (ATAI) in Q1 2026, closing a stake of 176,200 shares — an estimated $721K sold.

Two Sigma Advisers first reported a position in ATAI in Q4 2021 and held it in 14 quarters. The position peaked at $1.15M in Q4 2022. 183 funds tracked by Wall St. Rank hold ATAI as of Q1 2026.

  • Two Sigma Advisers reported no remaining AtaiBeckley Inc position as of Q1 2026 after selling out during the quarter.
  • Two Sigma Advisers sold 176,200 AtaiBeckley Inc shares in Q1 2026, an estimated $721K.
  • Two Sigma Advisers first reported a position in AtaiBeckley Inc in Q4 2021 and held it in 14 quarters.
  • Two Sigma Advisers's AtaiBeckley Inc position peaked at $1.15M in Q4 2022.
  • 183 funds tracked by Wall St. Rank held AtaiBeckley Inc as of Q1 2026.

Based on Two Sigma Advisers's 13F filing for Q1 2026.