Vault-13

ATAIBECKLEY INC ATAI

COM SHS · Common Stock · CUSIP 04650F101

240 institutional holders +62 vs Q1 2026
133,693,349133.7m shares reported held*
$704.1mreported value*
80 new 85 added 26 reduced 20 sold out net bought ≈ $182.2m (+34.7m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.9m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $5.27. Options: 7 managers hold calls ($16.6m notional), 6 hold puts ($3.7m).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0100200300Q4 25: 20Q1 26: 178Q2 26: 240240Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q4 202520
Q1 2026178
Q2 2026240

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q1 26: 163 bought or addedQ1 26: 8 cut or sold outQ1 26Q2 26: 165 bought or addedQ2 26: 46 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q1 20261638
Q2 202616546

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$5m$10m$15m$20mQ3 25 calls: $0Q3 25 puts: $0Q3 25P/C —Q4 25 calls: $0Q4 25 puts: $0Q4 25P/C —Q1 26 calls: $8.8mQ1 26 puts: $1.3mQ1 26P/C 0.15Q2 26 calls: $16.6mQ2 26 puts: $3.7mQ2 26P/C 0.22
Numbers
QuarterCallsPutsP/C
Q3 2025$0$0—
Q4 2025$0$0—
Q1 2026$8.8m$1.3m0.15
Q2 2026$16.6m$3.7m0.22

Biggest buyers

BlackRock, Inc. Added +18,739,273+18.7m
STATE STREET CORP Added +7,142,699+7.1m
GEODE CAPITAL MANAGEMENT, LLC Added +4,423,335+4.4m
VANGUARD PORTFOLIO MANAGEMENT LLC New +4,106,450+4.1m
Deep Track Capital, LP Added +2,417,442+2.4m
NORTHERN TRUST CORP Added +2,051,117+2.1m
CITADEL ADVISORS LLC Added +1,943,520+1.9m
Halter Ferguson Financial Inc. New +1,485,590+1.5m
FIRST TRUST ADVISORS LP New +1,375,500+1.4m
PRICE T ROWE ASSOCIATES INC /MD/ New +1,350,732+1.4m

Biggest sellers

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -4,798,840-4.8m
UBS Group AG Reduced -3,002,166-3.0m
Qube Research & Technologies Ltd Sold out -2,891,942-2.9m
MILLENNIUM MANAGEMENT LLC Reduced -2,593,570-2.6m
MARSHALL WACE, LLP Reduced -2,254,427-2.3m
TWO SIGMA INVESTMENTS, LP Reduced -1,153,081-1.2m
Point72 Asset Management, L.P. Sold out -664,724-664.7k
Newtyn Management, LLC Reduced -593,895-593.9k
CenterBook Partners LP Reduced -450,746-450.7k
OP Asset Management Ltd Sold out -423,674-423.7k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $8.1m1.5m shares
GROUP ONE TRADING LLC Reduced $4.1m783.6k shares
SIMPLEX TRADING, LLC Reduced $1.9m367.2k shares
CITADEL ADVISORS LLC Reduced $1.2m224.0k shares
JANE STREET GROUP, LLC Added $674.6k128.0k shares
GOLDMAN SACHS GROUP INC Unchanged $421.6k80.0k shares
Walleye Capital LLC New $164.4k31.2k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $1.4m270.3k shares
CITADEL ADVISORS LLC Added $951.8k180.6k shares
GROUP ONE TRADING LLC Added $525.4k99.7k shares
Walleye Capital LLC New $321.5k61.0k shares
JANE STREET GROUP, LLC New $286.7k54.4k shares
SIMPLEX TRADING, LLC Added $206.1k39.1k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

No one currently above 5% in the filings since 19 Dec 2024.

Fell to 5% or below in the last year: Apeiron Investment Group Ltd. (0.0%, 2026-09-14)

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock, Inc. 0.00% of their portfolio New York, NY 25,574,57325.6m $134.8m $134.8m 0.00% Added +18.7m +18,739,273
2 Deep Track Capital, LP 1.12% of their portfolio GREENWICH, CT 14,417,44214.4m $76.0m $76.0m 1.12% Added +2.4m +2,417,442
3 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 11,747,24911.7m $61.9m $61.9m 0.00% Reduced -14.1k -14,149
4 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 8,287,0548.3m $43.7m $43.7m 0.00% Added +7.1m +7,142,699
5 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 6,933,3096.9m $36.5m $36.5m 0.00% Added +4.4m +4,423,335
6 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio Boston, MA 5,642,7585.6m $29.7m $29.7m 0.04% Unchanged
7 UBS Group AG 0.00% of their portfolio ZURICH, V8 4,424,7014.4m $23.3m $23.3m 0.00% Reduced -3.0m -3,002,166
8 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 4,106,4504.1m $21.6m $21.6m 0.00% New
9 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 3,843,2533.8m $20.3m $20.3m 0.00% Reduced -9.5k -9,519
10 Candriam S.C.A. 0.07% of their portfolio STRASSEN, N4 3,039,3993.0m $16.0m $16.0m 0.07% Reduced -47.0k -46,980
11 Foresite Capital Management VI LLC 2.26% of their portfolio WEST HOLLYWOOD, CA 2,750,0002.8m $14.5m $14.5m 2.26% Unchanged
12 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 2,589,1672.6m $13.6m $13.6m 0.00% Added +2.1m +2,051,117
13 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 2,114,9082.1m $11.1m $11.1m 0.01% Added +1.9m +1,943,520
14 RTW INVESTMENTS, LP 0.09% of their portfolio NEW YORK, NY 2,000,0002.0m $10.5m $10.5m 0.09% Unchanged
15 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 1,965,6832.0m $10.4m $10.4m 0.00% Added +784.1k +784,100
16 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 1,770,5261.8m $9.3m $9.3m 0.01% Reduced -2.6m -2,593,570
17 Eagle Health Investments LP 1.49% of their portfolio Greenwich, CT 1,709,3591.7m $9.0m $9.0m 1.49% Unchanged
18 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 1,576,2961.6m $8.3m $8.3m 0.00% Added +319.6k +319,565
19 Halter Ferguson Financial Inc. 1.27% of their portfolio CARMEL, IN 1,485,5901.5m $7.8m $7.8m 1.27% New
20 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 1,375,5001.4m $7.2m $7.2m 0.00% New
21 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 1,350,7321.4m $7.1m $7.1m 0.00% New
22 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 1,295,2621.3m $6.8m $6.8m 0.00% Added +1.1m +1,118,139
23 Newtyn Management, LLC 0.78% of their portfolio NEW YORK, NY 1,187,8081.2m $6.3m $6.3m 0.78% Reduced -593.9k -593,895
24 MOORE CAPITAL MANAGEMENT, LP 0.11% of their portfolio NEW YORK, NY 952,380952.4k $5.0m $5.0m 0.11% Unchanged
25 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 946,100946.1k $5.0m $5.0m 0.00% Added +425.2k +425,195
26 ADAR1 Capital Management, LLC 0.23% of their portfolio AUSTIN, TX 913,242913.2k $4.8m $4.8m 0.23% Unchanged
27 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 891,983892.0k $4.7m $4.7m 0.00% Added +846.4k +846,374
28 AdvisorShares Investments LLC 0.56% of their portfolio BETHESDA, MD 882,892882.9k $4.7m $4.7m 0.56% Added +315.3k +315,305
29 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 822,471822.5k $4.3m $4.3m 0.00% Reduced -1.2m -1,153,081
30 ORBIMED ADVISORS LLC 0.08% of their portfolio New York, NY 797,500797.5k $4.2m $4.2m 0.08% Added +450.5k +450,500
31 Woodline Partners LP 0.01% of their portfolio San Francisco, CA 600,000600.0k $3.2m $3.2m 0.01% Unchanged
32 BOUSSARD & GAVAUDAN GESTION SAS 0.15% of their portfolio PARIS, I0 540,893540.9k $2.9m $2.9m 0.15% First filing
33 JGP Global Gestao de Recursos Ltda. 5.88% of their portfolio RIO DE JANEIRO, D5 500,000500.0k $2.6m $2.6m 5.88% New
34 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 490,433490.4k $2.6m $2.6m 0.00% Reduced -329.2k -329,231
35 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 490,135490.1k $2.6m $2.6m 0.00% Added +224.1k +224,135
36 Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio CHIYODA-KU, TOKYO, M0 489,613489.6k $2.6m $2.6m 0.00% Reduced -78.0k -77,963
37 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 487,486487.5k $2.6m $2.6m 0.00% Reduced -4.8m -4,798,840
38 Amova Asset Management Americas, Inc. 0.03% of their portfolio New York, NY 483,952484.0k $2.5m $2.5m 0.03% Reduced -83.6k -83,624
39 Swiss National Bank 0.00% of their portfolio ZURICH, V8 473,700473.7k $2.5m $2.5m 0.00% Added +147.8k +147,800
40 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 399,436399.4k $2.1m $2.1m 0.00% New
41 Man Group plc 0.00% of their portfolio LONDON, X0 358,812358.8k $1.9m $1.9m 0.00% Reduced -184.7k -184,703
42 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 355,500355.5k $1.3m $1.3m 0.00% Added +334.3k +334,300
43 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 345,042345.0k $1.8m $1.8m 0.00% Added +338.1k +338,131
44 BIT Capital GmbH 0.06% of their portfolio BERLIN, 2M 320,576320.6k $1.7m $1.7m 0.06% Added +138.0k +138,000
45 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 304,576304.6k $1.6m $1.6m 0.00% New
46 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 297,918297.9k $1.6m $1.6m 0.00% Added +291.4k +291,383
47 Jefferies Financial Group Inc. 0.01% of their portfolio NEW YORK, NY 275,900275.9k $1.5m $1.5m 0.01% Unchanged
48 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 273,350273.4k $1.5m $1.5m 0.00% Added +80.8k +80,836
49 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 264,382264.4k $1.4m $1.4m 0.00% New
50 Warm Springs Advisors Inc. 0.96% of their portfolio LARKSPUR, CA 263,000263.0k $1.4m $1.4m 0.96% Added +126.6k +126,600
51 CenterBook Partners LP 0.07% of their portfolio GREENWICH, CT 256,623256.6k $1.4m $1.4m 0.07% Reduced -450.7k -450,746
52 IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.08% of their portfolio DUBLIN 2, L2 252,913252.9k $1.3m $1.3m 0.08% Added +64.9k +64,880
53 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 248,757248.8k $1.3m $1.3m 0.00% Added +195.6k +195,558
54 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 241,024241.0k $1.3m $1.3m 0.00% Reduced -377.6k -377,596
55 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 239,550239.6k $1.3m $1.3m 0.00% Added +190.5k +190,498
56 Jump Financial, LLC 0.01% of their portfolio Chicago, IL 218,675218.7k $1.2m $1.2m 0.01% Added +172.6k +172,649
57 Catalio Capital Management, LP 0.19% of their portfolio NEW YORK, NY 196,858196.9k $1.0m $1.0m 0.19% Unchanged
58 Axxion S.A. 0.07% of their portfolio GREVENMACHER, N4 193,223193.2k $1.0m $1.0m 0.07% First filing
59 Rockefeller Capital Management L.P. 0.00% of their portfolio NEW YORK, NY 189,000189.0k $996.0k $996.0k 0.00% Added +10.0k +10,000
60 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 188,676188.7k $994.3k $994.3k 0.00% New
61 Burkehill Global Management, LP 0.04% of their portfolio NEW YORK, NY 185,000185.0k $975.0k $975.0k 0.04% Unchanged
62 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 179,877179.9k $948.0k $948.0k 0.00% Added +141.7k +141,659
63 STABLEFORD CAPITAL II LLC 0.31% of their portfolio SCOTTSDALE, AZ 168,350168.3k $887.2k $887.2k 0.31% New
64 Legal & General Group Plc 0.00% of their portfolio London, X0 166,783166.8k $878.9k $878.9k 0.00% Added +61.1k +61,147
65 VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio London, EC4N 8AF, X0 166,315166.3k $876.5k $876.5k 0.00% Added +55.8k +55,823
66 AXON CAPITAL LP 1.50% of their portfolio New York, NY 152,904152.9k $805.8k $805.8k 1.50% Reduced -152.9k -152,898
67 Diametric Capital, LP 0.08% of their portfolio BOSTON, MA 148,702148.7k $783.7k $783.7k 0.08% New
68 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 146,911146.9k $774.2k $774.2k 0.00% New
69 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 145,800145.8k $768.4k $768.4k 0.00% Added +81.7k +81,700
70 Carrera Capital Advisors 0.11% of their portfolio TROY, MI 137,560137.6k $724.9k $724.9k 0.11% Unchanged
71 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 121,116121.1k $638.3k $638.3k 0.00% New
72 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 117,676117.7k $620.2k $620.2k 0.00% Added +94.7k +94,711
73 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 111,188111.2k $586.0k $586.0k 0.00% Added +7.7k +7,729
74 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 110,019110.0k $579.8k $579.8k 0.00% Reduced -2.3m -2,254,427
75 MYDA Advisors LLC 0.14% of their portfolio WOODMERE, NY 110,000110.0k $579.7k $579.7k 0.14% Added +60.0k +60,000
76 INSIGNEO ADVISORY SERVICES, LLC 0.02% of their portfolio MIAMI, FL 104,252104.3k $549.4k $549.4k 0.02% New
77 Lighthouse Investment Partners, LLC 0.02% of their portfolio Palm Beach Gardens, FL 103,420103.4k $545.0k $545.0k 0.02% Added +90.4k +90,420
78 Eversept Partners, LP 0.03% of their portfolio NEW YORK, NY 102,430102.4k $539.8k $539.8k 0.03% New
79 Verdad Advisers, LP 0.51% of their portfolio BOSTON, MA 100,681100.7k $530.6k $530.6k 0.51% Reduced -127.0k -126,989
80 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 94,49794.5k $498.0k $498.0k 0.00% New
81 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 93,90093.9k $494.9k $494.9k 0.00% New
82 Z3 Capital Partners, LLC 0.10% of their portfolio RICHMOND, VA 92,52592.5k $487.6k $487.6k 0.10% New
83 EntryPoint Capital, LLC 0.11% of their portfolio NEW YORK, NY 86,49786.5k $455.8k $455.8k 0.11% New
84 Virtus Investment Advisers, LLC 0.10% of their portfolio HARTFORD, CT 83,46983.5k $439.9k $439.9k 0.10% Added +19.9k +19,906
85 TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio STAMFORD, CT 81,91181.9k $431.7k $431.7k 0.00% New
86 Jupiter Topco LLC 0.00% of their portfolio NEW YORK, NY 79,40079.4k $418.0k $418.0k 0.00% First filing
87 State of New Jersey Common Pension Fund D 0.00% of their portfolio TRENTON, NJ 76,33876.3k $402.3k $402.3k 0.00% Added +19.8k +19,845
88 Vontobel Holding Ltd. 0.00% of their portfolio ZURICH, V8 75,87875.9k $399.9k $399.9k 0.00% Added +55.9k +55,878
89 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 75,44275.4k $397.6k $397.6k 0.00% Reduced -13.0k -12,987
90 TRUIST FINANCIAL CORP 0.00% of their portfolio CHARLOTTE, NC 75,08075.1k $395.7k $395.7k 0.00% Added +58.7k +58,686
91 PROFUND ADVISORS LLC 0.01% of their portfolio BETHESDA, MD 73,59873.6k $387.9k $387.9k 0.01% New
92 China Universal Asset Management Co., Ltd. 0.02% of their portfolio SHANGHAI, F4 72,17372.2k $380.4k $380.4k 0.02% Reduced -3.1k -3,082
93 WINTON GROUP Ltd 0.01% of their portfolio LONDON, X0 70,60070.6k $372.1k $372.1k 0.01% Added +6.2k +6,200
94 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 67,45567.5k $355.5k $355.5k 0.00% Added +21.1k +21,080
95 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 66,06066.1k $348.1k $348.1k 0.00% New
96 Vanguard Investments Australia, Ltd. 0.00% of their portfolio Victoria, C3 65,69765.7k $346.2k $346.2k 0.00% Added +22.6k +22,606
97 ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio PHOENIX, AZ 65,14465.1k $343.3k $343.3k 0.00% Added +19.7k +19,740
98 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 62,80062.8k $331.0k $331.0k 0.00% New
99 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 62,67262.7k $330.3k $330.3k 0.00% Reduced -407.0k -407,021
100 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 61,64361.6k $324.9k $324.9k 0.00% Added +23.5k +23,505