Ati Inc

ATI

Exchange: NYSE
Industry: Steel Pipe & Tubes
SEC CIK: 0001018963

SEC filings (opens in a new tab)

In the last 90 days, Ati Inc insiders filed 0 open-market purchases and 9 sales; 795 institutions reported holding it in 13F filings for Q2 2026, worth $25.1B in total; 3 superinvestors hold it, including Viking Global Investors and Soros Fund Management.

13F holders, Q3 2026

Institutional positions in Ati Inc as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 5; 0 vs. Q2 2026
Shares held: 3.64K; +58 (+1.6%) vs. Q2 2026
Total value: $690.1K; −$16.5K (−2.3%) vs. Q2 2026
New holders: 0; 1 more added
Sold out: 0; 2 more reduced

790 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ATI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding ATI and their total value by quarter
Quarter	Holders	Value
Q2 2026	795	$25.1B
Q1 2026	678	$18.5B
Q4 2025	570	$14.7B
Q3 2025	470	$10.5B
Q2 2025	473	$11.6B
Q1 2025	426	$6.97B
Q4 2024	403	$7.51B
Q3 2024	421	$8.89B
Q2 2024	403	$7.33B
Q1 2024	345	$6.89B
Q4 2023	349	$6.10B
Q3 2023	338	$5.48B
Q2 2023	329	$5.95B
Q1 2023	339	$5.29B
Q4 2022	304	$3.95B
Q3 2022	290	$3.49B
Q2 2022	266	$3.02B
Q1 2022	284	$3.51B
Q4 2021	241	$2.10B
Q3 2021	236	$2.21B
Q2 2021	237	$2.77B
Q1 2021	234	$2.72B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q2 2026.

Institutions holding ATI in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Cigna Investments Inc	–	–	–	–	Not filed
44 Wealth Management LLC	–	–	–	–	Not filed
Greenleaf Trust	–	–	–	–	Not filed
Bryant Woods Investment Advisors, LLC	–	–	–	–	Not filed
Ironwood Investment Counsel, LLC	–	–	–	–	Not filed
Central Trust Co	–	–	–	–	Not filed
QRG Capital Management, Inc.	–	–	–	–	Not filed
Pitcairn Wealth Advisors LLC	–	–	–	–	Not filed
Caxton Associates LLP	–	–	–	–	Not filed
Massar Capital Management, LP	–	–	–	–	Not filed
Wilkerson Advisory Group LLC	–	–	–	–	Not filed
Snowden Capital Advisors LLC	–	–	–	–	Not filed
Angeles Wealth Management, LLC	–	–	–	–	Not filed
Aaron Wealth Advisors	–	–	–	–	Not filed
Resources Investment Advisors, LLC.	–	–	–	–	Not filed
Arlington Capital Management, Inc.	–	–	–	–	Not filed
Dynamic Advisor Solutions LLC	–	–	–	–	Not filed
Knightsbridge Asset Management, LLC	–	–	–	–	Not filed
Essential Partners LLC	–	–	–	–	Not filed
Jackson Thornton Asset Management, LLC	–	–	–	–	Not filed
55 North Private Wealth, LLC	–	–	–	–	Not filed
Three Seasons Wealth, LLC	–	–	–	–	Not filed
Greenspring Advisors, LLC	–	–	–	–	Not filed
Impact Capital Partners LLC	–	–	–	–	Not filed
Drive Wealth Management, LLC	–	–	–	–	Not filed
Pinnacle Wealth Planning Services, Inc.	–	–	–	–	Not filed
Fiduciary Alliance LLC	–	–	–	–	Not filed
Greenline Wealth Management LLC	–	–	–	–	Not filed
Soltis Investment Advisors LLC	–	–	–	–	Not filed
Root Financial Partners, LLC	–	–	–	–	Not filed
One + One Wealth Management, LLC	–	–	–	–	Not filed
Brookstone Capital Management	–	–	–	–	Not filed
SBI Securities Co., Ltd.	–	–	–	–	Not filed
Pilgrim Partners Asia Pte Ltd	–	–	–	–	Not filed
Midwest Trust Co	–	–	–	–	Not filed
Aspiriant, LLC	–	–	–	–	Not filed
AA Financial Advisors, LLC	–	–	–	–	Not filed
Advisory Alpha, LLC	–	–	–	–	Not filed
Arkadios Wealth Advisors	–	–	–	–	Not filed
Barnes Dennig Private Wealth Management LLC	–	–	–	–	Not filed
CIBC World Markets Inc.	–	–	–	–	Not filed
Linscomb & Williams, Inc.	–	–	–	–	Not filed
Baker Avenue Asset Management, LP	–	–	–	–	Not filed
Agp Franklin, LLC	–	–	–	–	Not filed
Laurel Oak Wealth Management, LLC	–	–	–	–	Not filed
Cornerstone Advisory, LLC	–	–	–	–	Not filed
Capital Analysts, LLC	–	–	–	–	Not filed
IFP Advisors, Inc	–	–	–	–	Not filed
USA Financial Formulas	–	–	–	–	Not filed
Sterling Capital Management LLC	–	–	–	–	Not filed
Hilltop National Bank	–	–	–	–	Not filed
Vanguard National Trust Co	–	–	–	–	Not filed
Wolff Wiese Magana LLC	–	–	–	–	Not filed
EFG International AG	–	–	–	–	Not filed
TCG Advisory Services, LLC	–	–	–	–	Not filed
Keating Financial Advisory Services, Inc.	–	–	–	–	Not filed
Signaturefd, LLC	–	–	–	–	Not filed
Smartleaf Asset Management LLC	–	–	–	–	Not filed
Parkside Financial Bank & Trust	–	–	–	–	Not filed
Security National Bank of Sioux City Iowa	–	–	–	–	Not filed
Harbor Investment Advisory, LLC	–	–	–	–	Not filed
Johnson Financial Group, Inc.	–	–	–	–	Not filed
Cedar Mountain Advisors, LLC	–	–	–	–	Not filed
ARK Investment Management LLCSuperinvestorARK Invest	–	–	–	–	Not filed
Newbridge Financial Services Group, Inc.	–	–	–	–	Not filed
WPG Advisers, LLC	–	–	–	–	Not filed
Rakuten Securities, Inc.	–	–	–	–	Not filed
Prestige Wealth Management Group LLC	–	–	–	–	Not filed
Meeder Asset Management Inc	–	–	–	–	Not filed
Leonteq Securities AG	–	–	–	–	Not filed
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	–	–	–	–	Not filed
HM Payson & Co	–	–	–	–	Not filed
Cullen/Frost Bankers, Inc.	–	–	–	–	Not filed
True Wealth Design, LLC	–	–	–	–	Not filed
Triumph Capital Management	–	–	–	–	Not filed
Nomura Asset Management Co Ltd	–	–	–	–	Not filed
Golden State Wealth Management, LLC	–	–	–	–	Not filed
UMA Financial Services, Inc.	–	–	–	–	Not filed
Pin Oak Investment Advisors Inc	–	–	–	–	Not filed
First Horizon Corp	–	–	–	–	Not filed
Bryn Mawr Trust Co	–	–	–	–	Not filed
SJS Investment Consulting Inc.	–	–	–	–	Not filed
Macquarie Group Ltd	–	–	–	–	Not filed
Assetmark, Inc	–	–	–	–	Not filed
Mather Group, LLC.	–	–	–	–	Not filed
Signature Equity Partners, LLC	–	–	–	–	Not filed
Colonial Trust Co	–	–	–	–	Not filed
Global X Japan Co., Ltd.	–	–	–	–	Not filed
CVA Family Office, LLC	–	–	–	–	Not filed
Blue Bell Private Wealth Management, LLC	–	–	–	–	Not filed
Larson Financial Group LLC	–	–	–	–	Not filed
Caitong International Asset Management Co., Ltd	–	–	–	–	Not filed
ORG Wealth Partners, LLC	–	–	–	–	Not filed
Zions Bancorporation, National Association	–	–	–	–	Not filed
Pinnacle Bancorp, Inc.	–	–	–	–	Not filed
GHP Investment Advisors, Inc.	–	–	–	–	Not filed
CoreCap Advisors, LLC	–	–	–	–	Not filed
Contravisory Investment Management, Inc.	–	–	–	–	Not filed
Private Trust Co NA	–	–	–	–	Not filed
McGuire Capital Advisors Inc	–	–	–	–	Not filed