SEI Investments
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SEI Investments’s AtaiBeckley Inc ATAI Stock Holding History

SEI Investments’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 		$348K Buy
+66,060
New +$278K ﹤0.01% 2795

Other funds holding ATAI

BlackRock
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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

SEI Investments's ATAI Position: Q2 2026 in Review

SEI Investments opened a new position in AtaiBeckley Inc (ATAI) in Q2 2026: 66,060 shares worth $348K. The stake represents ﹤0.01% of the portfolio and ranks #2795 among its holdings.

242 funds tracked by Wall St. Rank hold ATAI as of Q2 2026.

  • SEI Investments held 66,060 shares of AtaiBeckley Inc worth $348K as of Q2 2026.
  • AtaiBeckley Inc was a new SEI Investments position in Q2 2026.
  • AtaiBeckley Inc made up ﹤0.01% of SEI Investments's portfolio in Q2 2026, its #2795 holding.
  • 242 funds tracked by Wall St. Rank held AtaiBeckley Inc as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.