Ati ATI Institutional Ownership

NYSE ATI

$198.90 -7.64 (-3.70%)

As of: Sep 10, 2026 · 3:59 PM EDT

Institutions by Trading Activity

786 Institutions

Increased 479 60.9%

Unchanged 89 11.3%

Reduced 218 27.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

94.84%

▲+2.33 pp QoQ

Shares Held by Institutions

129.26Mn

of 136.30Mn outstanding

▲+2.88% QoQ

Shares Outstanding

136.30Mn

7.04Mn held outside 13F filers

Institutional Investors

786

filed 13F for Jun 2026

▲+116 vs prior quarter

Net Shares Added (QoQ)

+3.62Mn

accumulated since last quarter

Value of Holdings

$27.21Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Ati Inc (NYSE:ATI) has 786 institutional investors with active 13F positions as of June 2026.

These investors held 94.8% of outstanding shares in June 2026, up from 92.5% in March 2026.
They increased total shares held in Ati by 2.88% from last quarter, and the number of investors in ATI increased 67.59% annually.
During the quarter, 479 of these 786 funds increased positions in ATI, 218 reduced exposure, and 89 held steady.
Altogether, these fund groups held 129.26Mn shares in ATI by June 2026, up by 3.62Mn shares quarter on quarter, and down 5.98Mn shares year over year.
BlackRock, Inc. is the top holder of Ati as of June 30, 2026, with 18.71Mn shares representing 13.73% of outstanding stock.
Top purchasers of ATI stock for the quarter ending June 2026 included BlackRock, Inc. (2.27Mn), NORGES BANK (1.74Mn), Sixth Street Partners Management Company, L.P. (1.48Mn), Qube Research & Technologies Ltd (1.29Mn), BOWEN HANES & CO INC (1.04Mn).
The largest sellers of Ati for the quarter ending June 2026 were VIKING GLOBAL INVESTORS LP (2.18Mn), Capital International Investors (2.16Mn), Capital Research Global Investors (1.07Mn), UBS Group AG (954.36K), D. E. Shaw & Co., Inc. (927.02K).
Ati's 10 largest shareholders as of June 2026 include BlackRock, Inc. (18.71Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (6.22Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.16Mn), Capital World Investors (5.25Mn), State Street Corp (5.24Mn), Capital Research Global Investors (5.09Mn), FMR LLC (4.99Mn), Capital International Investors (3.72Mn), Invesco Ltd. (3.45Mn), GEODE CAPITAL MANAGEMENT, LLC (2.78Mn) per Business Quant data.

Form 13F Holdings

786 Institutional Holders

Report period 30 Jun, 2026

Total shares held 129.26Mn

Of outstanding 94.84%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	18,708,922	13.73%	▲2,267,269	+13.79%	$3.69Bn
2	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	6,219,875	4.56%	▲398,367	+6.84%	$1.23Bn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	6,162,418	4.52%	▲38,290	+0.63%	$1.21Bn
4	Capital World Investors	0001422849	5,249,249	3.85%	▼463,680	-8.12%	$1.03Bn
5	State Street Corp	0000093751	5,237,299	3.84%	▼143,714	-2.67%	$1.03Bn
6	Capital Research Global Investors	0001422848	5,093,768	3.74%	▼1,066,339	-17.31%	$1.00Bn
7	FMR LLC	0000315066	4,989,171	3.66%	▼258,004	-4.92%	$983.37Mn
8	Capital International Investors	0001562230	3,719,485	2.73%	▼2,164,464	-36.79%	$733.17Mn
9	Invesco Ltd.	0000914208	3,449,291	2.53%	▼406,352	-10.54%	$679.86Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,777,512	2.04%	▼169,813	-5.76%	$547.58Mn
11	Qube Research & Technologies Ltd	0001729829	2,144,028	1.57%	▲1,285,210	+149.65%	$422.59Mn
12	Morgan Stanley	0000895421	1,865,178	1.37%	▲196,587	+11.78%	$367.63Mn
13	Bank Of America Corp /De/	0000070858	1,767,047	1.30%	▲402,106	+29.46%	$348.28Mn
14	NORGES BANK	0001374170	1,739,884	1.28%	▲1,739,884	0.00%	$342.93Mn
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	1,483,253	1.09%	▼18,876	-1.26%	$292.35Mn
15	Sixth Street Partners Management Company, L.P.	0001812095	1,483,253	1.09%	▲1,483,253	0.00%	$292.35Mn
16	AQR CAPITAL MANAGEMENT LLC	0001167557	1,432,935	1.05%	▲210,355	+17.21%	$282.43Mn
17	JANE STREET GROUP, LLC	0001595888	1,410,930	1.04%	▼80,333	-5.39%	$278.09Mn
18	Northern Trust Corp	0000073124	1,288,597	0.95%	▲49,577	+4.00%	$253.98Mn
19	Point72 Asset Management, L.P.	0001603466	1,240,348	0.91%	▼692,231	-35.82%	$244.47Mn

Showing 1 to 20 of 786 holders