Who owns ROK (ROK)
Which tracked institutional funds hold ROK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ROK company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
206 tracked funds added or opened ROK while 421 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ROK’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes ROK more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ROK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 1410 tracked filers holding ROK, 636 increased or opened the position and 638 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ROK between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 67
- VANGUARD CAPITAL MANAGEMENT LLC$2.6B
- VANGUARD PORTFOLIO MANAGEMENT LLC$2.1B
- VANGUARD FIDUCIARY TRUST CO$227M
- Vanguard Global Advisers, LLC$88M
- VANGUARD ASSET MANAGEMENT, Ltd$66M
- SEB Asset Management AB$61M
Full exits 53
- VANGUARD GROUP INC$5.5B
- Fullerton Fund Management Co Ltd.$180M
- Artisan Partners Limited Partnership$85M
- Freestone Grove Partners LP$63M
- Cartenna Capital, LP$49M
- Yaupon Capital Management LP$36M
Largest adds
- JPMORGAN CHASE & CO$420M
- BROWN BROTHERS HARRIMAN & CO$152M
- UBS Group AG$149M
- Caisse de depot et placement du Quebec$57M
- FEDERATED HERMES, INC.$52M
- NORDEA INVESTMENT MANAGEMENT AB$52M
Largest trims
- BlackRock, Inc.$414M
- NORGES BANK$368M
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$246M
- CITADEL ADVISORS LLC$143M
- VOYA INVESTMENT MANAGEMENT LLC$135M
- Assenagon Asset Management S.A.$135M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 10,200,465 | $3.7B | 10.6% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 7,301,831 | $2.6B | 7.6% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 5,845,734 | $2.1B | 6.1% | 2026-Q1 |
| STATE STREET CORP added | 5,058,012 | $1.8B | 5.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,057,997 | $1.1B | 3.2% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,823,547 | $1.0B | 2.9% | 2026-Q1 |
| UBS Group AG added | 2,180,027 | $782M | 2.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 1,922,479 | $690M | 2.0% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,908,366 | $665M | 1.9% | 2026-Q1 |
| Invesco Ltd. added | 1,654,047 | $594M | 1.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,537,690 | $554M | 1.6% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 1,418,943 | $509M | 1.5% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 1,364,997 | $490M | 1.4% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 1,148,663 | $412M | 1.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,046,789 | $376M | 1.1% | 2026-Q1 |
| Amundi added | 998,374 | $358M | 1.0% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. added | 981,885 | $352M | 1.0% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB added | 974,623 | $343M | 1.0% | 2026-Q1 |
| Fisher Asset Management, LLC added | 927,088 | $333M | 1.0% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 904,357 | $324M | 0.9% | 2026-Q1 |
| Legal & General Group Plc added | 814,906 | $292M | 0.9% | 2026-Q1 |
| Holocene Advisors, LP trimmed | 787,779 | $283M | 0.8% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 757,183 | $272M | 0.8% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 756,499 | $271M | 0.8% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 707,881 | $254M | 0.7% | 2026-Q1 |
| NORGES BANK trimmed | 959,233 | $248M | 0.7% | 2026-Q1 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main trimmed | 645,916 | $232M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 633,773 | $227M | 0.7% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 630,279 | $226M | 0.7% | 2026-Q1 |
| Robeco Institutional Asset Management B.V. added | 621,257 | $223M | 0.6% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 570,075 | $222M | 0.6% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 602,181 | $216M | 0.6% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 541,796 | $192M | 0.6% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 530,847 | $191M | 0.6% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 492,495 | $177M | 0.5% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 488,169 | $175M | 0.5% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 464,229 | $167M | 0.5% | 2026-Q1 |
| FMR LLC added | 459,101 | $165M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 431,693 | $155M | 0.5% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 426,476 | $153M | 0.4% | 2026-Q1 |
| BROWN BROTHERS HARRIMAN & CO added | 425,771 | $153M | 0.4% | 2026-Q1 |
| DekaBank Deutsche Girozentrale | 417,024 | $152M | 0.4% | 2026-Q1 |
| Alecta Tjanstepension Omsesidigt trimmed | 412,475 | $148M | 0.4% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 406,586 | $146M | 0.4% | 2026-Q1 |
| DAVENPORT & Co LLC trimmed | 406,350 | $145M | 0.4% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 398,746 | $143M | 0.4% | 2026-Q1 |
| Man Group plc added | 362,619 | $130M | 0.4% | 2026-Q1 |
| Quilter Plc added | 360,846 | $130M | 0.4% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP trimmed | 365,436 | $127M | 0.4% | 2026-Q1 |
| WORLDQUANT MILLENNIUM ADVISORS LLC added | 350,007 | $126M | 0.4% | 2026-Q1 |
| BARCLAYS PLC added | 338,581 | $122M | 0.4% | 2026-Q1 |
| Nuveen, LLC added | 336,357 | $121M | 0.4% | 2026-Q1 |
| Swiss National Bank added | 329,980 | $118M | 0.3% | 2026-Q1 |
| KING LUTHER CAPITAL MANAGEMENT CORP trimmed | 304,201 | $109M | 0.3% | 2026-Q1 |
| SATURNA CAPITAL CORP added | 301,481 | $108M | 0.3% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC added | 291,024 | $104M | 0.3% | 2026-Q1 |
| BLAIR WILLIAM & CO/IL added | 284,067 | $102M | 0.3% | 2026-Q1 |
| Thrivent Financial for Lutherans trimmed | 283,842 | $102M | 0.3% | 2026-Q1 |
| MAIRS & POWER INC trimmed | 283,553 | $102M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 276,336 | $99M | 0.3% | 2026-Q1 |
| Eurizon Capital SGR S.p.A. trimmed | 275,966 | $98M | 0.3% | 2026-Q1 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 254,630 | $91M | 0.3% | 2026-Q1 |
| HUNTINGTON NATIONAL BANK added | 250,549 | $90M | 0.3% | 2026-Q1 |
| JENNISON ASSOCIATES LLC added | 250,085 | $90M | 0.3% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 245,287 | $88M | 0.3% | 2026-Q1 |
| Allianz Asset Management GmbH added | 241,526 | $87M | 0.3% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 238,018 | $85M | 0.2% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 234,231 | $84M | 0.2% | 2026-Q1 |
| ONTARIO TEACHERS PENSION PLAN BOARD trimmed | 233,214 | $84M | 0.2% | 2026-Q1 |
| AGF MANAGEMENT LTD added | 229,919 | $83M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 211,016 | $76M | 0.2% | 2026-Q1 |
| WESTFIELD CAPITAL MANAGEMENT CO LP trimmed | 206,277 | $74M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 205,426 | $74M | 0.2% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 204,981 | $74M | 0.2% | 2026-Q1 |
| Caisse de depot et placement du Quebec added | 202,844 | $73M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 199,360 | $72M | 0.2% | 2026-Q1 |
| Reynders McVeigh Capital Management, LLC trimmed | 197,266 | $71M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 196,223 | $70M | 0.2% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 192,747 | $69M | 0.2% | 2026-Q1 |
| Birch Hill Investment Advisors LLC trimmed | 188,730 | $68M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 188,165 | $68M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 182,621 | $66M | 0.2% | 2026-Q1 |
| Candriam S.C.A. added | 182,451 | $65M | 0.2% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co added | 175,943 | $63M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 171,781 | $62M | 0.2% | 2026-Q1 |
| National Pension Service added | 171,018 | $61M | 0.2% | 2026-Q1 |
| SEB Asset Management AB new | 170,940 | $61M | 0.2% | 2026-Q1 |
| HighTower Advisors, LLC added | 168,297 | $60M | 0.2% | 2026-Q1 |
| WATERS PARKERSON & CO., LLC trimmed | 167,144 | $60M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 167,106 | $60M | 0.2% | 2026-Q1 |
| UniSuper Management Pty Ltd added | 166,605 | $60M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 165,962 | $60M | 0.2% | 2026-Q1 |
| Stephens Investment Management Group LLC trimmed | 165,027 | $59M | 0.2% | 2026-Q1 |
| LPL Financial LLC trimmed | 164,587 | $59M | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 161,559 | $58M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC added | 14,157,058 | $5.5B | 16.0% | 2025-Q4 stale |
| Fullerton Fund Management Co Ltd. added | 463,267 | $180M | 0.5% | 2025-Q4 stale |
| Champlain Investment Partners, LLC trimmed | 356,115 | $124M | 0.4% | 2025-Q3 stale |
| Artisan Partners Limited Partnership added | 218,176 | $85M | 0.2% | 2025-Q4 stale |
| Freestone Grove Partners LP added | 161,697 | $63M | 0.2% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.