Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
243 institutional managers reported holding WKC for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 68%. 30 opened new positions; 38 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 8.73M | 16.78% | added +3% | ≤2013 | |
| Vanguard Group | 6.60M | 12.69% | trimmed -1.7% | ≤2013 | |
| Brandes Investment Partners, LP | 4.29M | 8.25% | added +11.5% | 2017 Q1 | |
| State Street | 4.01M | 7.71% | added +32.8% | ≤2013 | |
| Dimensional Fund Advisors | 3.24M | 6.23% | trimmed -15.5% | ≤2013 | |
| Invesco | 2.31M | 4.43% | trimmed -3.8% | ≤2013 | |
| LSV Asset Management | 1.97M | 3.79% | added +1.7% | 2016 Q3 | |
| American Century Companies INC | 1.41M | 2.72% | added +16.9% | 2020 Q3 | |
| Geode Capital | 1.34M | 2.58% | added +3.3% | ≤2013 | |
| Charles Schwab Investment Management | 1.22M | 2.35% | trimmed -7.4% | ≤2013 | |
| EVR Research LP (focused) | 940.0k | 1.81% | added +27% | 2024 Q1 | |
| Morgan Stanley | 870.4k | 1.67% | trimmed -14.4% | ≤2013 | |
| FMR (Fidelity) | 810.6k | 1.56% | added +18.5% | ≤2013 | |
| Jacobs Levy Equity Management, INC | 674.9k | 1.30% | trimmed -38.4% | 2014 Q3 | |
| Bank OF Montreal /CAN/ | 663.1k | 1.27% | added +5.1% | ≤2013 | |
| Wells Fargo & COMPANY/MN | 648.8k | 1.25% | trimmed -1.5% | ≤2013 | |
| Arrowstreet Capital | 644.9k | 1.24% | added +235.1% | 2023 Q2 | |
| Millennium Management | 626.7k | 1.21% | added +207.8% | 2018 Q4 | |
| Northern Trust | 605.2k | 1.16% | added +0.8% | ≤2013 | |
| UBS | 587.1k | 1.13% | added +42% | ≤2013 | |
| Nomura Asset Management International INC. | 569.1k | 1.09% | added +7.7% | 2023 Q2 | |
| Bank OF America CORP /DE/ | 568.0k | 1.09% | trimmed -6.9% | ≤2013 | |
| Man Group | 450.3k | 0.87% | added +330.1% | 2025 Q3 | |
| Bridgeway Capital Management, LLC | 437.1k | 0.84% | added +1% | 2019 Q2 | |
| Cambria Investment Management, L.p. | 436.6k | 0.84% | added +10.5% | 2024 Q2 | |
| Glenmede Trust CO NA | 399.4k | 0.77% | trimmed -8.4% | 2024 Q2 | |
| Hotchkis & Wiley Capital Management LLC | 385.0k | 0.74% | trimmed -22.6% | 2017 Q4 | |
| Principal Financial Group INC | 365.1k | 0.70% | added +7.6% | ≤2013 | |
| Nuveen | 360.3k | 0.69% | added +1.1% | 2019 Q2 | |
| Victory Capital Management INC | 357.3k | 0.69% | trimmed -6.2% | 2019 Q1 | |
| BNY Mellon | 333.5k | 0.64% | trimmed -3.5% | ≤2013 | |
| Royal Bank OF Canada | 328.7k | 0.63% | added +30.4% | ≤2013 | |
| D. E. Shaw | 328.2k | 0.63% | trimmed -4.6% | 2014 Q4 | |
| OP Asset Management LTD | 326.5k | 0.63% | added +168% | 2025 Q1 | |
| Pacer Advisors, INC. | 314.2k | 0.60% | trimmed -21.9% | 2025 Q2 | |
| Goldman Sachs | 306.5k | 0.59% | trimmed -14.3% | ≤2013 | |
| AQR Capital | 289.6k | 0.56% | added +12.6% | ≤2013 | |
| Prudential Financial INC | 288.8k | 0.56% | trimmed -26.5% | ≤2013 | |
| Empowered Funds, LLC | 287.8k | 0.55% | trimmed -16.4% | 2023 Q2 | |
| Ameriprise Financial INC | 256.4k | 0.49% | trimmed -57.3% | ≤2013 | |
| Franklin Resources | 256.1k | 0.49% | added +792.7% | 2025 Q2 | |
| Public Sector Pension Investment Board | 247.9k | 0.48% | unchanged | 2021 Q3 | |
| LOS Angeles Capital Management LLC | 231.1k | 0.45% | added +846.9% | 2025 Q3 | |
| Allianz Asset Management GmbH | 199.7k | 0.38% | added +3.6% | 2019 Q1 | |
| Rhumbline Advisers | 175.0k | 0.34% | added +1.4% | ≤2013 | |
| Legal & General Group PLC | 162.3k | 0.31% | trimmed -7.2% | ≤2013 | |
| Tidal Investments LLC | 160.0k | 0.31% | opened | 2026 Q1 | |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 159.7k | 0.31% | trimmed -8.6% | 2024 Q4 | |
| Martingale Asset Management L P | 146.0k | 0.28% | added +18.9% | 2025 Q1 | |
| Trexquant Investment LP | 145.2k | 0.28% | trimmed -20.9% | 2022 Q1 |
Largest 50 of 243 shown; the full ranked, searchable register is at boothcheck.com/holders/WKC. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.