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Ati Inc

ATI
Exchange
NYSE
Industry
Steel Pipe & Tubes
SEC CIK
0001018963

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, Q1 2026

Institutional positions in Ati Inc as of Mar 31, 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

Institutional holders
678
+116 vs. Q4 2025
Shares held
127.4M
+13.8M (+12.2%) vs. Q4 2025
Total value
$18.5B
+$5.46B (+41.9%) vs. Q4 2025
New holders
167
246 more added
Sold out
51
189 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 holdersQ1 2026: 678 institutions
Q1 2021: 234 institutionsQ2 2021: 237 institutionsQ3 2021: 236 institutionsQ4 2021: 241 institutionsQ1 2022: 284 institutionsQ2 2022: 266 institutionsQ3 2022: 290 institutionsQ4 2022: 304 institutionsQ1 2023: 339 institutionsQ2 2023: 329 institutionsQ3 2023: 338 institutionsQ4 2023: 349 institutionsQ1 2024: 345 institutionsQ2 2024: 403 institutionsQ3 2024: 421 institutionsQ4 2024: 403 institutionsQ1 2025: 426 institutionsQ2 2025: 473 institutionsQ3 2025: 470 institutionsQ4 2025: 570 institutionsQ1 2026: 678 institutionsQ2 2026: 795 institutions
Value heldQ1 2026: $18.5B
Q1 2021: $2.72BQ2 2021: $2.77BQ3 2021: $2.21BQ4 2021: $2.10BQ1 2022: $3.51BQ2 2022: $3.02BQ3 2022: $3.49BQ4 2022: $3.95BQ1 2023: $5.29BQ2 2023: $5.95BQ3 2023: $5.48BQ4 2023: $6.10BQ1 2024: $6.89BQ2 2024: $7.33BQ3 2024: $8.89BQ4 2024: $7.51BQ1 2025: $6.97BQ2 2025: $11.6BQ3 2025: $10.5BQ4 2025: $14.7BQ1 2026: $18.5BQ2 2026: $25.1B
Institutions holding ATI and their total value by quarter
QuarterHoldersValue
Q2 2026795$25.1B
Q1 2026678$18.5B
Q4 2025570$14.7B
Q3 2025470$10.5B
Q2 2025473$11.6B
Q1 2025426$6.97B
Q4 2024403$7.51B
Q3 2024421$8.89B
Q2 2024403$7.33B
Q1 2024345$6.89B
Q4 2023349$6.10B
Q3 2023338$5.48B
Q2 2023329$5.95B
Q1 2023339$5.29B
Q4 2022304$3.95B
Q3 2022290$3.49B
Q2 2022266$3.02B
Q1 2022284$3.51B
Q4 2021241$2.10B
Q3 2021236$2.21B
Q2 2021237$2.77B
Q1 2021234$2.72B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q4 2025.

Institutions holding ATI in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Twin Peaks Wealth Advisors, LLC131$19.1K0.00%+131New
Pinnacle Bancorp, Inc.128$18.6K0.01%+94+276.5%Added
TFC Financial Management118$17.2K0.00%00.0%Unchanged
First Command Advisory Services, Inc.110$16.0K0.00%+110New
Chilton Capital Management LLC109$15.9K0.00%+109New
Fortitude Family Office, LLC107$15.6K0.00%+78+269.0%Added
Wealth Preservation Advisors, LLC101$14.7K0.01%+101New
Larson Financial Group LLC91$13.2K0.00%+11+13.8%Added
Wall Street Financial Group, Inc.87$12.7K0.01%+87New
Bare Financial Services, Inc80$11.6K0.00%−8−9.1%Reduced
Covestor Ltd78$11.0K0.01%−1,893−96.0%Reduced
Quent Capital, LLC71$10.3K0.00%+2+2.9%Added
Moisand Fitzgerald Tamayo, LLC70$10.2K0.00%00.0%Unchanged
Rossby Financial, LCC67$10.1K0.00%+16+31.4%Added
Private Wealth Management Group, LLC66$9.60K0.00%−36−35.3%Reduced
Central Trust Co66$9.60K0.00%00.0%Unchanged
Adirondack Trust Co66$9.60K0.00%00.0%Unchanged
Raffa Wealth Management, LLC66$9.60K0.00%+66New
United Financial Planning Group LLC66$9.60K0.01%+66New
Silicon Valley Capital Partners54$7.86K0.00%+54New
Salomon & Ludwin, LLC53$7.77K0.00%00.0%Unchanged
Caldwell Sutter Capital, Inc.50$7.27K0.00%00.0%Unchanged
Financial Consulate, Inc50$7.27K0.00%00.0%Unchanged
Lodestone Wealth Management LLC49$7.13K0.00%00.0%Unchanged
Longview Financial Advisors, Inc.48$6.98K0.00%+48New
Newbridge Financial Services Group, Inc.46$6.69K0.00%−874−95.0%Reduced
Elequin Capital LP46$6.69K0.00%+46New
Golden State Equity Partners42$6.11K0.00%+42New
LRI Investments, LLC42$6.11K0.00%+42New
Capital Advisors, Ltd. LLC38$6.00K0.00%00.0%Unchanged
MCF Advisors LLC36$5.24K0.00%00.0%Unchanged
Clearstead Advisors, LLC34$4.95K0.00%−564−94.3%Reduced
Sachetta, LLC34$4.95K0.00%+34New
Bell Investment Advisors, Inc33$4.80K0.00%00.0%Unchanged
Legacy Wealth Managment, LLC32$4.66K0.00%+32New
Transamerica Financial Advisors, Inc.31$4.51K0.00%+29+1,450.0%Added
JPL Wealth Management, LLC29$4.22K0.00%+29New
DiNuzzo Private Wealth, Inc.27$3.93K0.00%+3+12.5%Added
Cornerstone Financial Management LLC27$3.93K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC24$3.49K0.00%+1+4.3%Added
Cornerstone Planning Group LLC22$3.42K0.00%+22New
Bay Harbor Wealth Management, LLC23$3.35K0.00%+12+109.1%Added
Valued Wealth Advisors LLC20$2.91K0.00%+17+566.7%Added
New England Capital Financial Advisors LLC20$2.91K0.00%+20New
Marquette Asset Management, LLC17$2.47K0.00%+17New
IMA Wealth, Inc.17$2.47K0.00%+17New
South State Corp.16$2.33K0.00%+5+45.5%Added
Dunhill Financial, LLC15$2.21K0.00%+13+650.0%Added
Rialto Wealth Management, LLC14$2.04K0.00%+2+16.7%Added
Cromwell Holdings LLC14$2.04K0.00%00.0%Unchanged
CX Institutional16$2.00K0.00%+16New
Torren Management, LLC13$1.89K0.00%−441−97.1%Reduced
NBC Securities, Inc.13$1.89K0.00%+13New
First Horizon Corp12$1.75K0.00%00.0%Unchanged
Brown, Lisle/Cummings, Inc.12$1.75K0.00%+12New
DecisionPoint Financial, LLC11$1.60K0.00%00.0%Unchanged
Clarity Asset Management, Inc.11$1.58K0.00%+11New
Morse Asset Management, Inc10$1.46K0.00%00.0%Unchanged
Bogart Wealth, LLC10$1.46K0.00%+5+100.0%Added
Vermillion Wealth Management, Inc.10$1.46K0.00%+10New
Leo H. Evart, Inc.10$1.46K0.00%+10New
HFM Investment Advisors, LLC9$1.31K0.00%+1+12.5%Added
Creative Financial Designs Inc9$1.31K0.00%+9New
Stone House Investment Management, LLC7$1.02K0.00%00.0%Unchanged
Harvest Fund Management Co., Ltd6$1.00K0.00%00.0%Unchanged
American Capital Advisory, LLC4$5820.00%+3+300.0%Added
Geneos Wealth Management Inc.4$5820.00%+4New
Intentional Wealth Strategies, LLC4$5820.00%+4New
Murphy & Mullick Capital Management Corp3$4360.00%00.0%Unchanged
Curio Wealth, LLC3$4360.00%+3New
Godfrey Financial Associates, Inc.3$4360.00%+3New
Sunbelt Securities, Inc.2$2910.00%00.0%Unchanged
Principia Wealth Advisory, LLC2$2910.00%00.0%Unchanged
MV Capital Management, Inc.2$2910.00%+1+100.0%Added
Kilter Group LLC1$1460.00%−2−66.7%Reduced
Leonteq Securities AG1$1450.00%−203−99.5%Reduced
ROSS\JOHNSON & Associates LLC1$1450.00%00.0%Unchanged
Hughes Financial Services, LLC1$1450.00%+1New
MUFG Securities EMEA plc0$00.00%−277,000−100.0%Sold out
Cartenna Capital, LP0$00.00%−260,000−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−175,732−100.0%Sold out
Concentric Capital Strategies, LP0$00.00%−161,956−100.0%Sold out
Weiss Asset Management LP0$00.00%−119,031−100.0%Sold out
J. Goldman & Co LP0$00.00%−114,246−100.0%Sold out
LTS One Management LP0$00.00%−102,500−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−100,869−100.0%Sold out
NEOS Investment Management LLC0$00.00%−78,117−100.0%Sold out
SummitTX Capital, L.P.0$00.00%−68,660−100.0%Sold out
Lansforsakringar Fondforvaltning AB (publ)0$00.00%−63,028−100.0%Sold out
Sagefield Capital LP0$00.00%−51,455−100.0%Sold out
Roubaix Capital, LLC0$00.00%−37,284−100.0%Sold out
Mackenzie Financial Corp0$00.00%−18,849−100.0%Sold out
Toronto Dominion Bank0$00.00%−17,780−100.0%Sold out
Dockside LLC0$00.00%−15,844−100.0%Sold out
Trexquant Investment LP0$00.00%−14,551−100.0%Sold out
Arete Wealth Advisors, LLC0$00.00%−13,236−100.0%Sold out
Simplex Trading, LLC0$00.00%−9,545−100.0%Sold out
Quest Partners LLC0$00.00%−9,519−100.0%Sold out
Redwood Investment Management, LLC0$00.00%−9,495−100.0%Sold out
Walleye Trading LLC0$00.00%−9,362−100.0%Sold out