Security Snapshot

AtaiBeckley Inc. - Common stock, par value $0.01 per share (ATAI) Institutional Ownership

CUSIP: 04650F101

13F Institutional Holders and Ownership History from Q4 2025 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

237

Shares (Excl. Options)

133,948,088

Price

$5.27

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+34,346,470
Value change
+$189,573,154
Number of holders
237
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
368,909,961
SEC-reported price per share
$7.18
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • ATAI - AtaiBeckley Inc. - Common stock, par value $0.01 per share is tracked under CUSIP 04650F101.
  • 237 institutions reported positions in Q2 2026.
  • 1 significant owner is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 175 to 237 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $350,989,719 to $705,406,272.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 237 institutions filings for Q2 2026.

Open SEC evidence

Security key

04650F101

Latest holder period

Q2 2026

13F holders

237

13D/G owners

1

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
1
Security
ATAI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Apeiron Investment Group Ltd. 15% $299,399,946 56,812,134 Christian Angermayer 15 Jul 2026

As of 30 Jun 2026, 237 institutional investors reported holding 133,948,088 shares of AtaiBeckley Inc. - Common stock, par value $0.01 per share (ATAI). This represents 36% of the company’s total 368,909,961 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
31%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 6.9% 25,574,573 +274% 0% $134,777,999
Deep Track Capital, LP 3.9% 14,417,442 +20% 1.1% $75,979,919
VANGUARD CAPITAL MANAGEMENT LLC 3.2% 11,747,249 -0.12% 0% $61,908,002
STATE STREET CORP 2.2% 8,287,054 +624% 0% $43,672,775
GEODE CAPITAL MANAGEMENT, LLC 1.9% 6,933,309 +176% 0% $36,543,357
ADAGE CAPITAL PARTNERS GP, L.L.C. 1.5% 5,642,758 0% 0.04% $29,737,335
UBS Group AG 1.2% 4,424,701 -40% 0% $23,318,174
VANGUARD PORTFOLIO MANAGEMENT LLC 1.1% 4,106,450 0% $21,640,992
MORGAN STANLEY 1% 3,843,253 -0.25% 0% $20,253,943
Candriam S.C.A. 0.82% 3,039,399 -1.5% 0.07% $16,002,222
Foresite Capital Management VI LLC 0.75% 2,750,000 0% 2.3% $14,492,500
NORTHERN TRUST CORP 0.7% 2,589,167 +381% 0% $13,644,910
CITADEL ADVISORS LLC 0.57% 2,114,908 +1134% 0.01% $11,145,565
RTW INVESTMENTS, LP 0.54% 2,000,000 0% 0.09% $10,540,000
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.53% 1,965,683 +66% 0% $10,359,149
MILLENNIUM MANAGEMENT LLC 0.48% 1,770,526 -59% 0.01% $9,330,672
Eagle Health Investments LP 0.46% 1,709,359 0% 1.5% $9,008,322
VANGUARD FIDUCIARY TRUST CO 0.43% 1,576,296 +25% 0% $8,307,080
Halter Ferguson Financial Inc. 0.4% 1,485,590 1.3% $7,829,060
FIRST TRUST ADVISORS LP 0.37% 1,375,500 0% $7,248,885
PRICE T ROWE ASSOCIATES INC /MD/ 0.37% 1,350,732 0% $7,119,000
Nuveen, LLC 0.35% 1,295,262 +631% 0% $6,826,030
Newtyn Management, LLC 0.32% 1,187,808 -33% 0.78% $6,259,748
MOORE CAPITAL MANAGEMENT, LP 0.26% 952,380 0% 0.11% $5,019,043
GOLDMAN SACHS GROUP INC 0.26% 946,100 +82% 0% $4,985,946

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
3
Latest
Q2 2026
Rows shown
1-3 of 3
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 133,948,088 $705,406,272 +$189,573,154 $5.27 237
2026 Q1 99,158,600 $350,989,719 +$276,409,077 $3.54 175
2025 Q4 7,148,629 $29,239,216 +$29,239,216 $4.09 20
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