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
DDFG, Inc	–	–	–	–	Not filed
Dynasty Wealth Management, LLC	–	–	–	–	Not filed
Juncture Wealth Strategies, LLC	–	–	–	–	Not filed
TD Waterhouse Canada Inc.	–	–	–	–	Not filed
Keystone Financial Group	–	–	–	–	Not filed
Laird Norton Trust Company, LLC	–	–	–	–	Not filed
Syon Capital LLC	–	–	–	–	Not filed
Insigneo Advisory Services, LLC	–	–	–	–	Not filed
AlphaStar Capital Management, LLC	–	–	–	–	Not filed
Citizens Financial Group Inc	–	–	–	–	Not filed
Abel Hall, LLC	–	–	–	–	Not filed
Picton Mahoney Asset Management	–	–	–	–	Not filed
TCW Group Inc	–	–	–	–	Not filed
Strategic Investment Advisors	–	–	–	–	Not filed
Perigon Wealth Management, LLC	–	–	–	–	Not filed
Coyle Financial Counsel LLC	–	–	–	–	Not filed
Leavell Investment Management, Inc.	–	–	–	–	Not filed
Virtu Financial LLC	–	–	–	–	Not filed
Highland Capital Management, LLC	–	–	–	–	Not filed
LVW Advisors, LLC	–	–	–	–	Not filed
Ausdal Financial Partners, Inc.	–	–	–	–	Not filed
Commerce Bank	–	–	–	–	Not filed
GK Wealth Management LLC	–	–	–	–	Not filed
Wedmont Private Capital	–	–	–	–	Not filed
Umb Bank N A	–	–	–	–	Not filed
Blackstone Group Inc.	–	–	–	–	Not filed
Capital Group Investment Management Pte. Ltd.	–	–	–	–	Not filed
Mindset Wealth Management, LLC	–	–	–	–	Not filed
Frec Markets, Inc.	–	–	–	–	Not filed
American Trust	–	–	–	–	Not filed
Northland Securities, Inc.	–	–	–	–	Not filed
New Paradigm Capital Management, LLC	–	–	–	–	Not filed
Kiley Juergens Wealth Management, LLC	–	–	–	–	Not filed
Howard Wealth Management, LLC	–	–	–	–	Not filed
Diversify Advisory Services, LLC	–	–	–	–	Not filed
Diversify Wealth Management, LLC	–	–	–	–	Not filed
Bridgefront Capital, LLC	–	–	–	–	Not filed
Quantitative Investment Management, LLC	–	–	–	–	Not filed
Optas, LLC	–	–	–	–	Not filed
Successful Portfolios LLC	–	–	–	–	Not filed
Souders Financial Advisors	–	–	–	–	Not filed
VestGen Advisors, LLC	–	–	–	–	Not filed
Anchyra Partners LLC	–	–	–	–	Not filed
Centiva Capital, LP	–	–	–	–	Not filed
Mission Wealth Management, LP	–	–	–	–	Not filed
Twinbeech Capital LP	–	–	–	–	Not filed
Beese Fulmer Investment Management, Inc.	–	–	–	–	Not filed
Creative Capital Management Investments LLC	–	–	–	–	Not filed
Cornerstone Wealth Management, LLC	–	–	–	–	Not filed
Caisse de Depot Et Placement du Quebec	–	–	–	–	Not filed
Revisor Wealth Management LLC	–	–	–	–	Not filed
Baird Financial Group, Inc.	–	–	–	–	Not filed
Kathmere Capital Management, LLC	–	–	–	–	Not filed
Intellectus Partners, LLC	–	–	–	–	Not filed
Operose Advisors LLC	–	–	–	–	Not filed
Formidable Asset Management, LLC	–	–	–	–	Not filed
Parcion Private Wealth LLC	–	–	–	–	Not filed
Parallel Advisors, LLC	–	–	–	–	Not filed
Mainstream Capital Management LLC	–	–	–	–	Not filed
United Capital Financial Advisers, LLC	–	–	–	–	Not filed
Beacon Pointe Advisors, LLC	–	–	–	–	Not filed
Avantax Planning Partners, Inc.	–	–	–	–	Not filed
Ameritas Advisory Services, LLC	–	–	–	–	Not filed
Pallas Capital Advisors LLC	–	–	–	–	Not filed
Great Valley Advisor Group, Inc.	–	–	–	–	Not filed
Quarry LP	–	–	–	–	Not filed
Alpine Global Management, LLC	–	–	–	–	Not filed
Fidelis Capital Partners, LLC	–	–	–	–	Not filed
AdvisorNet Financial, Inc	–	–	–	–	Not filed
F/M Investments LLC	–	–	–	–	Not filed
Sentinus, LLC	–	–	–	–	Not filed
Banco Bilbao Vizcaya Argentaria, S.A.	–	–	–	–	Not filed
Personal Cfo Solutions, LLC	–	–	–	–	Not filed
Ascent Group, LLC	–	–	–	–	Not filed
Archer Investment Corp	–	–	–	–	Not filed
Alps Advisors Inc	–	–	–	–	Not filed
Retirement Guys Formula LLC	–	–	–	–	Not filed
Gateway Wealth Partners, LLC	–	–	–	–	Not filed
Savvy Advisors, Inc.	–	–	–	–	Not filed
Transcend Wealth Collective, LLC	–	–	–	–	Not filed
Networth Advisors, LLC	–	–	–	–	Not filed
Ponta Wealth Partners, LLC	–	–	–	–	Not filed
Capital Asset Advisory Services LLC	–	–	–	–	Not filed
Axxcess Wealth Management, LLC	–	–	–	–	Not filed
DRW Securities, LLC	–	–	–	–	Not filed
Diversified Trust Co	–	–	–	–	Not filed
SmartHarvest Portfolios, LLC	–	–	–	–	Not filed
Insight Wealth Strategies, LLC	–	–	–	–	Not filed
Fiduciary Trust Co	–	–	–	–	Not filed
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management	–	–	–	–	Not filed
Meeder Advisory Services, Inc.	–	–	–	–	Not filed
JFS Wealth Advisors, LLC	–	–	–	–	Not filed
NBC Securities, Inc.	–	–	–	–	Not filed
Cape Investment Advisory, Inc.	–	–	–	–	Not filed
Kestra Investment Management, LLC	–	–	–	–	Not filed
Norden Group LLC	–	–	–	–	Not filed
Guyasuta Investment Advisors Inc	–	–	–	–	Not filed
Employees Retirement System of Texas	–	–	–	–	Not filed
RiverFront Investment Group, LLC	–	–	–	–	Not filed
Sage Rhino Capital LLC	–	–	–	–	Not filed