ATI INC (ATI) — Institutional Holders, Q2 2026 (page 4)
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 301 to 400. 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 301–400 of 795
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 301 | ALLSTATE#301 · 15,147 sh | 15,147 | $3.0M | 0.03% | +1.3% |
| 302 | Polymer Capital Management (US)#302 · 15,144 sh | 15,144 | $3.0M | 0.40% | +282.9% |
| 303 | CAPITAL INTERNATIONAL LTD#303 · 15,128 sh | 15,128 | $3.0M | 0.10% | New |
| 304 | Graham Capital Management, L.P.#304 · 14,742 sh | 14,742 | $2.9M | 0.05% | New |
| 305 | TRUIST FINANCIAL#305 · 14,605 sh | 14,605 | $2.9M | <0.01% | +66.3% |
| 306 | OPPENHEIMER ASSET MANAGEMENT#306 · 14,532 sh | 14,532 | $2.9M | 0.03% | +89.5% |
| 307 | COMMONWEALTH EQUITY SERVICES#307 · 14,307 sh | 14,307 | $2.8M | <0.01% | -2.4% |
| 308 | RATIONAL ADVISORS#308 · 14,100 sh | 14,100 | $2.8M | 0.25% | +104.3% |
| 309 | BOOTHBAY FUND MANAGEMENT#309 · 13,952 sh | 13,952 | $2.7M | 0.04% | +510.6% |
| 310 | Sendero Wealth Management#310 · 13,811 sh | 13,811 | $2.7M | — | New |
| 311 | Faithward Advisors#311 · 13,653 sh | 13,653 | $2.7M | 0.33% | New |
| 312 | DARK FOREST CAPITAL MANAGEMENT#312 · 13,637 sh | 13,637 | $2.7M | 0.17% | +303.7% |
| 313 | Kovitz Investment Group Partners#313 · 13,438 sh | 13,438 | $2.6M | 0.06% | -6.8% |
| 314 | WINTON GROUP Ltd#314 · 13,394 sh | 13,394 | $2.6M | 0.09% | +50.5% |
| 315 | State of Alaska, Department of Revenue#315 · 13,372 sh | 13,372 | $2.6M | — | -2.5% |
| 316 | FourThought Financial Partners#316 · 13,124 sh | 13,124 | $2.6M | 0.20% | -1.0% |
| 317 | Old West Investment Management#317 · 12,555 sh | 12,555 | $2.5M | 0.26% | 0.0% |
| 318 | Tower Research Capital (TRC)#318 · 12,494 sh | 12,494 | $2.5M | 0.06% | +207.6% |
| 319 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#319 · 12,199 sh | 12,199 | $2.4M | <0.01% | New |
| 320 | Fruth Investment Management#320 · 12,050 sh | 12,050 | $2.4M | — | 0.0% |
| 321 | SRS Capital Advisors#321 · 11,974 sh | 11,974 | $2.4M | 0.02% | +489.0% |
| 322 | NVWM#322 · 11,925 sh | 11,925 | $2.4M | — | -24.1% |
| 323 | Oak Thistle#323 · 11,879 sh | 11,879 | $2.3M | — | -1.8% |
| 324 | Farmers & Merchants of Long Beach#324 · 11,831 sh | 11,831 | $2.3M | — | 0.0% |
| 325 | Focus Partners Wealth#325 · 11,477 sh | 11,477 | $2.3M | <0.01% | +27.6% |
| 326 | Swiss Life Asset Management Ltd#326 · 11,389 sh | 11,389 | $2.2M | <0.01% | +1.6% |
| 327 | Mitsubishi UFJ & Banking#327 · 11,110 sh | 11,110 | $2.2M | <0.01% | +88.2% |
| 328 | Williamson Legacy Group#328 · 11,077 sh | 11,077 | $2.2M | 1.08% | New |
| 329 | CAPSTONE INVESTMENT ADVISORS#329 · 10,849 sh | 10,849 | $2.1M | <0.01% | -56.6% |
| 330 | LOS ANGELES CAPITAL MANAGEMENT#330 · 10,832 sh | 10,832 | $2.1M | <0.01% | -20.2% |
| 331 | CAPTRUST FINANCIAL ADVISORS#331 · 10,731 sh | 10,731 | $2.1M | <0.01% | +31.5% |
| 332 | KESTRA PRIVATE WEALTH SERVICES#332 · 10,719 sh | 10,719 | $2.1M | 0.02% | -17.6% |
| 333 | Edgestream Partners, L.P.#333 · 10,664 sh | 10,664 | $2.1M | 0.06% | +12.1% |
| 334 | Crossmark Global#334 · 10,607 sh | 10,607 | $2.1M | — | +3.6% |
| 335 | PVG ASSET MANAGEMENT#335 · 10,475 sh | 10,475 | $2.1M | — | 0.0% |
| 336 | NOMURA#336 · 10,388 sh | 10,388 | $2.0M | <0.01% | -19.7% |
| 337 | Federation des caisses Desjardins du Quebec#337 · 10,126 sh | 10,126 | $2.0M | <0.01% | -49.2% |
| 338 | EVERGREEN CAPITAL MANAGEMENT#338 · 9,996 sh | 9,996 | $2.0M | — | -0.4% |
| 339 | D.A. DAVIDSON#339 · 9,904 sh | 9,904 | $2.0M | 0.01% | +5.9% |
| 340 | Waldron Private Wealth#340 · 9,903 sh | 9,903 | $2.0M | 0.07% | 0.0% |
| 341 | Merit Financial Group#341 · 9,735 sh | 9,735 | $1.9M | 0.01% | +0.5% |
| 342 | Walleye Trading#342 · 9,667 sh | 9,667 | $1.9M | <0.01% | New |
| 343 | SECURIAN ASSET MANAGEMENT#343 · 10,015 sh | 10,015 | $1.9M | 0.07% | 0.0% |
| 344 | FOX RUN MANAGEMENT, L.L.C.#344 · 9,361 sh | 9,361 | $1.8M | 0.31% | +14.2% |
| 345 | Squarepoint Ops#345 · 9,335 sh | 9,335 | $1.8M | <0.01% | -59.1% |
| 346 | Dynamic Technology Lab Private Ltd#346 · 9,130 sh | 9,130 | $1.8M | 0.40% | New |
| 347 | Vestmark Advisory Solutions#347 · 8,868 sh | 8,868 | $1.7M | 0.02% | +14.1% |
| 348 | UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT#348 · 8,864 sh | 8,864 | $1.7M | 0.20% | +37.7% |
| 349 | Robeco Institutional Asset Management B.V.#349 · 8,606 sh | 8,606 | $1.7M | — | New |
| 350 | OPPENHEIMER#350 · 8,499 sh | 8,499 | $1.7M | — | -4.7% |
| 351 | RITHOLTZ WEALTH MANAGEMENT#351 · 8,455 sh | 8,455 | $1.7M | 0.02% | New |
| 352 | Weinberger Asset Management#352 · 8,800 sh | 8,800 | $1.6M | 0.53% | 0.0% |
| 353 | Headlands Technologies#353 · 8,300 sh | 8,300 | $1.6M | 0.17% | +152.5% |
| 354 | GSA CAPITAL PARTNERS LLP#354 · 8,292 sh | 8,292 | $1.6M | 0.10% | +163.5% |
| 355 | Twin Tree Management#355 · 8,097 sh | 8,097 | $1.6M | 0.03% | -45.9% |
| 356 | SummitTX Capital, L.P.#356 · 7,978 sh | 7,978 | $1.6M | 0.04% | New |
| 357 | BRIGHTON JONES#357 · 7,922 sh | 7,922 | $1.6M | 0.03% | +4.7% |
| 358 | M&T BANK#358 · 7,914 sh | 7,914 | $1.6M | <0.01% | +8.5% |
| 359 | CCG WEALTH MANAGEMENT#359 · 7,815 sh | 7,815 | $1.5M | 0.36% | +0.2% |
| 360 | Bank Julius Baer & Ltd, Zurich#360 · 7,799 sh | 7,799 | $1.5M | <0.01% | -11.1% |
| 361 | ACADIAN ASSET MANAGEMENT#361 · 7,708 sh | 7,708 | $1.5M | <0.01% | +1174.0% |
| 362 | Ethic#362 · 7,695 sh | 7,695 | $1.5M | 0.02% | +24.0% |
| 363 | LANDSCAPE CAPITAL MANAGEMENT, L.L.C.#363 · 7,649 sh | 7,649 | $1.5M | 0.10% | New |
| 364 | Caprock Group#364 · 7,616 sh | 7,616 | $1.5M | 0.03% | +127.2% |
| 365 | Ensign Peak Advisors#365 · 7,441 sh | 7,441 | $1.5M | <0.01% | -64.3% |
| 366 | Maryland State Retirement & Pension System#366 · 7,352 sh | 7,352 | $1.4M | 0.02% | +8.1% |
| 367 | FIRST BUSINESS FINANCIAL SERVICES#367 · 7,158 sh | 7,158 | $1.4M | 0.11% | -4.4% |
| 368 | Numerai GP#368 · 7,112 sh | 7,112 | $1.4M | 0.11% | -9.3% |
| 369 | FIRST CITIZENS BANK#369 · 7,061 sh | 7,061 | $1.4M | — | +6.5% |
| 370 | Utah Retirement Systems#370 · 7,061 sh | 7,061 | $1.4M | 0.01% | -1.2% |
| 371 | Inspire Investing#371 · 6,883 sh | 6,883 | $1.4M | — | -38.0% |
| 372 | Concurrent Investment Advisors#372 · 6,808 sh | 6,808 | $1.3M | — | +9.8% |
| 373 | Fragasso Group#373 · 6,653 sh | 6,653 | $1.3M | — | +3.3% |
| 374 | State of Wyoming#374 · 6,652 sh | 6,652 | $1.3M | 0.13% | +130.8% |
| 375 | Cetera Company, N.A#375 · 6,548 sh | 6,548 | $1.3M | 0.65% | +1.2% |
| 376 | Precision Wealth Strategies#376 · 6,484 sh | 6,484 | $1.3M | 0.39% | -6.6% |
| 377 | Citizens National Bank Department#377 · 6,407 sh | 6,407 | $1.3M | 0.19% | 0.0% |
| 378 | Central Pacific Bank - Division#378 · 6,308 sh | 6,308 | $1.2M | — | 0.0% |
| 379 | PRINCIPAL SECURITIES#379 · 6,215 sh | 6,215 | $1.2M | 0.01% | New |
| 380 | SIMPLEX TRADING#380 · 6,203 sh | 6,203 | $1.2M | <0.01% | New |
| 381 | Lido Advisors#381 · 6,125 sh | 6,125 | $1.2M | <0.01% | +19.9% |
| 382 | OSTRUM ASSET MANAGEMENT#382 · 6,065 sh | 6,065 | $1.2M | 0.06% | New |
| 383 | Summit Trail Advisors#383 · 6,003 sh | 6,003 | $1.2M | 0.01% | -4.3% |
| 384 | Marathon Partners Equity Management#384 · 6,000 sh | 6,000 | $1.2M | 1.10% | -65.7% |
| 385 | Machina Capital S.A.S.#385 · 5,976 sh | 5,976 | $1.2M | 0.19% | +214.5% |
| 386 | NewEdge Advisors#386 · 5,967 sh | 5,967 | $1.2M | <0.01% | New |
| 387 | Integrated Wealth Concepts#387 · 5,935 sh | 5,935 | $1.2M | <0.01% | +8.6% |
| 388 | Magnetar Financial#388 · 5,931 sh | 5,931 | $1.2M | 0.01% | New |
| 389 | KEYBANK NATIONAL ASSOCIATION#389 · 5,773 sh | 5,773 | $1.1M | <0.01% | -0.9% |
| 390 | Arista Wealth Management#390 · 5,753 sh | 5,753 | $1.1M | 0.12% | -37.6% |
| 391 | EXCHANGE TRADED CONCEPTS#391 · 5,737 sh | 5,737 | $1.1M | <0.01% | +123.3% |
| 392 | Qtron Investments#392 · 5,695 sh | 5,695 | $1.1M | 0.15% | -17.8% |
| 393 | MARTINGALE ASSET MANAGEMENT L P#393 · 5,637 sh | 5,637 | $1.1M | 0.03% | +0.3% |
| 394 | TOTH FINANCIAL ADVISORY#394 · 5,609 sh | 5,609 | $1.1M | — | +124.4% |
| 395 | Capula Management Ltd#395 · 5,600 sh | 5,600 | $1.1M | <0.01% | New |
| 396 | US BANCORP \DE\#396 · 5,589 sh | 5,589 | $1.1M | <0.01% | +18.1% |
| 397 | Apollon Wealth Management#397 · 5,390 sh | 5,390 | $1.1M | — | +48.3% |
| 398 | ProShare Advisors#398 · 5,383 sh | 5,383 | $1.1M | <0.01% | -1.2% |
| 399 | Oakmont Investment Advisors#399 · 5,371 sh | 5,371 | $1.1M | — | +3.2% |
| 400 | Vestcor#400 · 5,330 sh | 5,330 | $1.1M | 0.03% | 0.0% |
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.