RTW Investments’s AtaiBeckley Inc ATAI Stock Holding History

RTW 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	$10.5M	Hold	2,000,000	–	–	0.09%	63
2026 Q1	$7.08M	Hold	2,000,000	–	–	0.07%	76
2025 Q4	$8.18M	Buy	+2,000,000	New	+$9.44M	0.08%	74

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

RTW Investments's ATAI Position: Q2 2026 in Review

RTW Investments held its AtaiBeckley Inc (ATAI) position steady in Q2 2026 at 2,000,000 shares worth $10.5M. The position accounts for 0.09% of the portfolio, ranked #63.

RTW Investments first reported a position in ATAI in Q4 2025 and has held it in 3 quarters since. 243 funds tracked by Wall St. Rank hold ATAI as of Q2 2026.

RTW Investments held 2,000,000 shares of AtaiBeckley Inc worth $10.5M as of Q2 2026.
RTW Investments left its AtaiBeckley Inc share count unchanged in Q2 2026.
AtaiBeckley Inc made up 0.09% of RTW Investments's portfolio in Q2 2026, its #63 holding.
RTW Investments first reported a position in AtaiBeckley Inc in Q4 2025 and has held it in 3 quarters since.
243 funds tracked by Wall St. Rank held AtaiBeckley Inc as of Q2 2026.

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