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ATI Inc. 13F holders

Of the 44 funds followed here, 12 reported a position in ATI Inc. in a 13F for the quarter ended 30 June 2026. The largest: Capital Research Global Investors, 5.1 million shares worth $1.00 billion, 0.1% of its reported book.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
Capital Research Global Investors5,093,768$1.00 billion0.1%-1,066,339trimmed30 June 202613F
FMR LLC4,989,171$983.4 million0.0%-258,004trimmed30 June 202613F
Geode Capital Management2,777,512$547.6 million0.0%-169,813trimmed30 June 202613F
Norges Bank1,739,884$342.9 million0.0%held30 June 202613F
Point72 Asset Management1,248,948$246.2 million0.3%-695,131trimmed30 June 202613F
Viking Global Investors1,153,880$227.4 million0.6%-2,178,963trimmed30 June 202613F
Millennium Management883,260$174.1 million0.1%+256,420added30 June 202613F
Citadel Advisors659,618$130.0 million0.0%+102,222added30 June 202613F
Two Sigma Investments649,471$128.0 million0.1%+624,996added30 June 202613F
Bridgewater Associates114,940$22.7 million0.1%+92,990added30 June 202613F
Soros Fund Management73,339$14.5 million0.2%+20,507added30 June 202613F
ARK Investment Management487$95,9880.0%-192trimmed30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
14 May 202613G/ACapital World Investors and 1 other5.7 million4.2%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Capital Management and 1 other7.1 million5.2%31 March 2026passive, institutional (13d-1(b))EDGAR
7 April 202613G/ACapital International Investors and 1 other6.2 million4.5%31 March 2026passive, institutional (13d-1(b))EDGAR
26 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
13 November 202513G/ACapital International Investors and 1 other17.6 million12.8%30 September 2025passive, institutional (13d-1(b))EDGAR
13 November 202513GCapital World Investors and 1 other7.9 million5.7%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
2 September 20264$200.95SEC
24 August 20261,500$207.01SEC
21 August 20265,602$209.22SEC
11 August 2026121$228.19SEC
5 August 20261,151$200.15SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 5,602 on 21 August 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to ATI by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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