Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
1,374 institutional managers reported holding ROK for the quarter ended Mar 31, 2026. Together they hold about 83% of shares outstanding; the top 10 hold 42%. 131 opened new positions; 152 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 14.28M | 12.68% | $5.12B | unchanged | ≤2013 |
| BlackRock | 11.91M | 10.58% | $4.27B | added +13.7% | ≤2013 |
| State Street | 5.06M | 4.49% | $1.81B | added +1.2% | ≤2013 |
| UBS | 3.33M | 2.96% | $1.19B | added +22.9% | ≤2013 |
| Geode Capital | 3.06M | 2.72% | $1.10B | added +4.6% | ≤2013 |
| Morgan Stanley | 2.82M | 2.51% | $1.01B | trimmed -3.4% | ≤2013 |
| Goldman Sachs | 1.92M | 1.71% | $689.5M | trimmed -8.7% | ≤2013 |
| Invesco | 1.69M | 1.50% | $604.6M | added +9.1% | ≤2013 |
| Charles Schwab Investment Management | 1.54M | 1.37% | $551.5M | unchanged | ≤2013 |
| Northern Trust | 1.42M | 1.26% | $508.9M | unchanged | ≤2013 |
| T. Rowe Price | 1.36M | 1.21% | $489.6M | trimmed -7% | ≤2013 |
| Bank OF America CORP /DE/ | 1.05M | 0.93% | $375.4M | trimmed -14.8% | ≤2013 |
| Amundi | 998.4k | 0.89% | $358.1M | added +13.5% | 2017 Q4 |
| Mirae Asset Global Etfs Holdings LTD. | 996.2k | 0.89% | $357.3M | added +7.4% | 2017 Q2 |
| Sumitomo Mitsui Trust Group, INC. | 981.9k | 0.87% | $352.2M | unchanged | ≤2013 |
| Nordea Investment Management AB | 974.6k | 0.87% | $349.6M | added +30.9% | ≤2013 |
| Fisher Investments | 927.1k | 0.82% | $332.5M | added +8.1% | ≤2013 |
| Legal & General Group PLC | 814.9k | 0.72% | $292.3M | added +11.1% | ≤2013 |
| Holocene Advisors | 787.8k | 0.70% | $282.5M | trimmed -14.9% | 2025 Q1 |
| Victory Capital Management INC | 757.2k | 0.67% | $271.6M | trimmed -21.5% | 2013 Q3 |
| Lazard Asset Management LLC | 756.5k | 0.67% | $271.3M | trimmed -0.5% | ≤2013 |
| Dimensional Fund Advisors | 707.9k | 0.63% | $253.9M | added +3.1% | ≤2013 |
| DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 645.9k | 0.57% | $231.7M | trimmed -24.4% | 2016 Q4 |
| BNY Mellon | 630.3k | 0.56% | $226.1M | trimmed -1.5% | ≤2013 |
| Robeco Institutional Asset Management B.v. | 621.3k | 0.55% | $222.8M | added +32.5% | ≤2013 |
| Arrowstreet Capital | 602.2k | 0.54% | $216.0M | added +15.2% | 2023 Q4 |
| AllianceBernstein | 570.1k | 0.51% | $204.5M | trimmed -33.7% | ≤2013 |
| Raymond James Financial INC | 541.8k | 0.48% | $194.3M | trimmed -10.9% | ≤2013 |
| Balyasny Asset Management | 530.8k | 0.47% | $190.4M | trimmed -5.3% | 2022 Q3 |
| Ameriprise Financial INC | 492.5k | 0.44% | $176.6M | added +18.3% | ≤2013 |
| Voya Investment Management LLC | 488.2k | 0.43% | $175.1M | trimmed -38.8% | ≤2013 |
| Mitsubishi UFJ Asset Management CO., LTD. | 484.5k | 0.43% | $173.8M | added +11.1% | ≤2013 |
| FMR (Fidelity) | 470.4k | 0.42% | $168.7M | added +23.5% | ≤2013 |
| Royal Bank OF Canada | 464.2k | 0.41% | $166.5M | trimmed -39% | ≤2013 |
| Deutsche Bank AG\ | 431.7k | 0.38% | $154.8M | added +22.4% | ≤2013 |
| Neuberger Berman Group LLC | 426.5k | 0.38% | $153.0M | added +32.4% | ≤2013 |
| Brown Brothers Harriman & CO | 425.8k | 0.38% | $152.7M | added +27053.8% | 2018 Q3 |
| DekaBank Deutsche Girozentrale | 417.0k | 0.37% | $149.6M | unchanged | ≤2013 |
| Alecta Tjanstepension Omsesidigt | 412.5k | 0.37% | $147.9M | trimmed -25.2% | 2014 Q4 |
| Hsbc Holdings PLC | 406.6k | 0.36% | $145.8M | added +48.1% | ≤2013 |
| Davenport & CO LLC | 406.4k | 0.36% | $145.7M | trimmed -1.2% | 2024 Q1 |
| Schroder Investment Management Group | 365.4k | 0.33% | $131.1M | trimmed -6.6% | ≤2013 |
| Man Group | 362.6k | 0.32% | $130.1M | added +12.8% | 2018 Q1 |
| Quilter PLC | 360.8k | 0.32% | $129.4M | added +1.4% | 2020 Q3 |
| BNP Paribas Financial Markets | 359.0k | 0.32% | $128.8M | added +42.4% | 2013 Q3 |
| Worldquant Millennium Advisors LLC | 350.0k | 0.31% | $125.5M | added +17.5% | 2024 Q3 |
| Barclays PLC | 338.6k | 0.30% | $121.4M | added +20.9% | ≤2013 |
| Nuveen | 336.4k | 0.30% | $120.6M | added +13.3% | ≤2013 |
| Swiss National Bank | 330.0k | 0.29% | $118.4M | added +7.1% | ≤2013 |
| King Luther Capital Management CORP | 304.2k | 0.27% | $109.1M | trimmed -4% | ≤2013 |
Largest 50 of 1,374 shown; the full ranked, searchable register is at boothcheck.com/holders/ROK. 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.