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CenterBook Partners’s AtaiBeckley Inc ATAI Stock Holding History

CenterBook Partners’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 		$2.5M Sell
707,369
-73,132
-9% -$275K 0.13% 192
2025
Q4 		$3.19M Buy
780,501
+129,370
+20% +$610K 0.16% 181
2025
Q3 		$3.44M Buy
+651,131
New +$2.64M 0.17% 171

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
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
CS
Candriam SCA Strassen, Luxembourg, Luxembourg $19.3B AUM 39.18% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

CenterBook Partners's ATAI Position: Q1 2026 in Review

CenterBook Partners reduced its AtaiBeckley Inc (ATAI) stake by 9.4% in Q1 2026, selling an estimated $275K and leaving 707,369 shares worth $2.5M. The position accounts for 0.13% of the portfolio, ranked #192.

CenterBook Partners first reported a position in ATAI in Q3 2025 and has held it in 3 quarters since. The position peaked at $3.44M in Q3 2025. 183 funds tracked by Wall St. Rank hold ATAI as of Q1 2026.

  • CenterBook Partners held 707,369 shares of AtaiBeckley Inc worth $2.5M as of Q1 2026.
  • CenterBook Partners sold 73,132 AtaiBeckley Inc shares in Q1 2026, an estimated $275K.
  • AtaiBeckley Inc made up 0.13% of CenterBook Partners's portfolio in Q1 2026, its #192 holding.
  • CenterBook Partners first reported a position in AtaiBeckley Inc in Q3 2025 and has held it in 3 quarters since.
  • CenterBook Partners's AtaiBeckley Inc position peaked at $3.44M in Q3 2025.
  • 183 funds tracked by Wall St. Rank held AtaiBeckley Inc as of Q1 2026.

Based on CenterBook Partners's 13F filing for Q1 2026, filed 5 May 2026.