ATI INC (ATI) — Institutional Holders, Q2 2026 (page 5)

795 institutional investment managers reported a ATI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $25.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 401 to 500. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

ATI 13F holders ranked 401–500 of 795

Institutional investors reporting a position in ATI INC on SEC Form 13F-HR for Q2 2026, ranked by reported value.
InstitutionValueQoQ
GATEWAY INVESTMENT ADVISERS#401 · 5,320 sh$1.0M+62.3%
Vident Advisory#402 · 5,316 sh$1.0M+18.0%
PFG Advisors#403 · 5,122 sh$1.0M+8.4%
Rockefeller Capital Management L.P.#404 · 5,064 sh$998.1K-29.6%
JONES ROAD CAPITAL MANAGEMENT, L.P.#405 · 5,000 sh$985.5K-50.0%
HB Wealth Management#406 · 4,979 sh$981.4K+20.9%
Y.D. More Investments Ltd#407 · 4,973 sh$980.2K+5.2%
Sigma Planning#408 · 4,934 sh$972.5K-53.1%
ROTHSCHILD INVESTMENT#409 · 4,919 sh$969.5K+186.5%
Fifth Third Wealth Advisors#410 · 4,914 sh$968.5K-0.5%
PRAXIS INVESTMENT MANAGEMENT#411 · 4,865 sh$959.0K0.0%
CASTLEARK MANAGEMENT#412 · 4,830 sh$952.0KNew
CHILTON INVESTMENT#413 · 4,814 sh$948.8K+95.0%
GAMMA Investing#414 · 4,793 sh$944.7K+23.0%
AlphaGrep UK Ltd#415 · 4,725 sh$931.3KNew
COLDSTREAM CAPITAL MANAGEMENT#416 · 4,722 sh$930.7K-3.7%
Mayflower Financial Advisors#417 · 4,573 sh$901.4K-8.1%
Confluence Wealth Services#418 · 4,572 sh$901.1K-5.9%
Illinois Municipal Retirement Fund#419 · 4,498 sh$886.6K-40.8%
Emerald Investment Advisers#420 · 4,468 sh$880.6K+52.4%
SHELTON CAPITAL MANAGEMENT#421 · 4,398 sh$866.8K-1.9%
Farther Finance Advisors#422 · 4,349 sh$857.2K+14.4%
SHEETS SMITH WEALTH MANAGEMENT#423 · 4,349 sh$857.2K0.0%
Kestra Advisory Services#424 · 4,348 sh$857.0K+54.1%
KBC Group NV#425 · 4,340 sh$855.0K0.0%
STEPHENS#426 · 4,258 sh$839.3K+87.8%
CIBC Asset Management#427 · 4,248 sh$837.3K0.0%
Atom Investors#428 · 4,185 sh$824.9K-57.1%
Fieldview Capital Management#429 · 4,149 sh$817.8K+157.5%
HUNTER ASSOCIATES INVESTMENT MANAGEMENT#430 · 4,050 sh$800.0K-2.4%
CHESAPEAKE CAPITAL#431 · 4,049 sh$798.1K+6.7%
North Dakota State Investment Board#432 · 4,006 sh$789.6K+1.7%
ESL Services#433 · 4,000 sh$788.4K0.0%
Prospera Financial Services#434 · 3,992 sh$786.8K+21.4%
Global Retirement Partners#435 · 3,989 sh$786.2K—
NewEdge Wealth#436 · 3,985 sh$785.4K+39.5%
Callan Family Office#437 · 3,926 sh$773.8K+4.6%
HARBOUR INVESTMENTS#438 · 3,921 sh$772.8K-8.0%
Mirae Asset Global Investments , Ltd.#439 · 3,888 sh$766.3K-5.9%
Nykredit A/S#440 · 3,855 sh$759.8K—
Basepoint Wealth#441 · 3,821 sh$753.1K-29.4%
Ballentine Partners#442 · 3,708 sh$730.8K+2.8%
WEST MICHIGAN ADVISORS#443 · 5,023 sh$730.6K0.0%
Krilogy Financial#444 · 3,701 sh$729.5K+5.4%
Sivia Capital Partners#445 · 3,517 sh$693.2K0.0%
Focus Partners Advisor Solutions#446 · 3,438 sh$677.6K-90.2%
XTX Topco Ltd#447 · 3,432 sh$676.4K-94.4%
Truvestments Capital#448 · 3,427 sh$675.5K+46.3%
Vise Technologies#449 · 3,406 sh$671.3K+22.9%
MAI Capital Management#450 · 3,359 sh$662.1K+258.1%
World Investment Advisors#451 · 4,223 sh$657.5K+11.6%
DAVENPORT#452 · 3,306 sh$651.7K+27.6%
Shay Capital#453 · 3,250 sh$640.6K+25.0%
Private Advisor Group#454 · 3,249 sh$640.4K+34.1%
CHOREO#455 · 3,230 sh$636.6K-17.4%
Compound Planning#456 · 3,166 sh$624.0K+33.1%
Meiji Yasuda Asset Management Ltd.#457 · 3,159 sh$622.6K+1.0%
PROFUND ADVISORS#458 · 3,099 sh$610.8K-8.8%
Bull Harbor Capital#459 · 3,062 sh$603.5K+14.0%
Vinva Investment Management Ltd#460 · 2,098 sh$602.8K-62.5%
Chicago Partners Investment Group#461 · 2,976 sh$594.7K+46.3%
Gallo Partners#462 · 2,974 sh$586.2K-69.2%
J.W. COLE ADVISORS#463 · 2,956 sh$582.6K+41.4%
CAISSE DES DEPOTS ET CONSIGNATIONS#464 · 2,953 sh$582.0KNew
Bank of Marin#465 · 2,950 sh$581.4K-3.9%
TD PRIVATE CLIENT WEALTH#466 · 2,944 sh$580.3K+71.5%
NATIONAL BANK OF CANADA#467 · 2,925 sh$577.6KNew
Eurizon Capital SGR S.p.A.#468 · 2,906 sh$574.1K-21.1%
AE Wealth Management#469 · 3,107 sh$573.6K+32.3%
THURSTON, SPRINGER, MILLER, HERD & TITAK#470 · 2,886 sh$568.8KNew
OARSMAN CAPITAL#471 · 2,870 sh$565.7K0.0%
Allworth Financial#472 · 2,840 sh$559.8K+15.7%
OF OKLAHOMA#473 · 2,820 sh$555.8K-6.3%
NorthCrest Asset Manangement#474 · 2,935 sh$552.8K+20.3%
Portside Wealth Group#475 · 2,787 sh$549.3KNew
Financiere des Professionnels - Fonds d,investissement#476 · 2,744 sh$540.8K-45.5%
OpenArc Corporate Advisory#477 · 2,722 sh$536.5K+43.4%
Crestwood Advisors Group#478 · 2,721 sh$536.3K-52.0%
Vontobel Holding Ltd.#479 · 2,699 sh$532.0K-12.8%
Accel Wealth Management#480 · 2,699 sh$532.0K-1.8%
TWO SIGMA SECURITIES#481 · 2,646 sh$521.5K-40.9%
Savant Capital#482 · 2,641 sh$520.6K+3.5%
Cordatus Wealth Management#483 · 2,634 sh$519.1K-0.1%
BNP Paribas Asset Management Holding S.A.#484 · 2,623 sh$517.0K+3.1%
ZWJ INVESTMENT COUNSEL#485 · 2,621 sh$516.6KNew
Caerus Investment Advisors#486 · 2,616 sh$515.6K+5.9%
Verition Fund Management#487 · 2,577 sh$507.9K-93.4%
JOHNSON INVESTMENT COUNSEL#488 · 2,574 sh$507.3K0.0%
EverSource Wealth Advisors#489 · 2,557 sh$504.0K-81.9%
WADDELL & ASSOCIATES#490 · 2,552 sh$503.0K+39.3%
Bannerstone Capital Management#491 · 2,550 sh$502.6KNew
ASSOCIATED BANC#492 · 2,528 sh$498.3K+1.1%
OLD NATIONAL BANCORP#493 · 2,516 sh$495.9K0.0%
Himension Fund#494 · 2,502 sh$493.1KNew
Cannon Global Investment Management#495 · 2,500 sh$492.8KNew
DDFG#496 · 2,498 sh$492.4K0.0%
Dynasty Wealth Management#497 · 2,492 sh$491.2KNew
JUNCTURE WEALTH STRATEGIES#498 · 2,487 sh$490.2K0.0%
TD Waterhouse Canada#499 · 2,515 sh$483.0K-67.1%
Keystone Financial Group#500 · 2,450 sh$482.9K-15.2%

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.