ATIATI Inc.

$191.70+137% 1Y

Who owns ATI

778 institutions reported holding ATI for 2026Q2, together 92% of the company, more than the 666 a quarter earlier.

778

Institutions reporting a position · as of 2026Q2 · up from 666 the quarter before

Shares held by institutions
127.3M

Shares held by institutions · 92% of the company · long US equity positions only, as reported on Form 13F

Reported value
$25.0B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
34%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
172
Positions exited
62
Added to
281
Reduced
208
Top 10 holdersof the company
47%
Shares sold shortsettled Sep 15, 2026
4.3M
Short interestof shares outstanding
3.1%
Days to coverat the average daily volume
2.8
Change in the short positionsince the Aug 31, 2026 count
+17%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2778127.3M$25.0B
2026Q1666127.2M$18.5B
2025Q4561128.2M$14.7B
2025Q3463128.6M$10.5B
2025Q2464133.7M$11.5B
2025Q1422133.8M$6.96B
2024Q4400136.1M$7.49B
2024Q3415132.8M$8.88B
2024Q2400132.1M$7.32B
2024Q1341134.8M$6.88B
2023Q4346134.2M$6.10B
2023Q3334133.0M$5.47B
2023Q2326134.5M$5.95B
2023Q1336133.9M$5.28B
2022Q4304132.3M$3.95B
2022Q3290131.2M$3.49B
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.18.7M13%$3.69B
VANGUARD GROUP INC13.5M9.7%$2.66B
Capital World Investors5.2M3.8%$1.03B
STATE STREET CORP5.2M3.8%$1.03B
Capital Research Global Investors5.1M3.7%$1.00B
FMR LLC5.0M3.6%$983M
Capital International Investors3.7M2.7%$733M
Invesco Ltd.3.4M2.5%$680M
GEODE CAPITAL MANAGEMENT LLC2.8M2.0%$548M
Qube Research & Technologies Ltd2.1M1.5%$423M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20264.3M3.1%2.8
Aug 31, 20263.7M2.7%1.7
Aug 14, 20263.4M2.5%2.0
Jul 31, 20263.7M2.7%2.5
Jul 15, 20263.7M2.7%2.8
Jun 30, 20263.9M2.8%1.8
Jun 15, 20263.6M2.6%2.0
May 29, 20263.9M2.8%2.2
May 15, 20263.8M2.7%2.1
Apr 30, 20263.8M2.7%2.0
Apr 15, 20263.8M2.7%2.1
Mar 31, 20263.8M2.7%1.8

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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