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Institutional Ownership · SEC Form 13F

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.

1,410
Institutional holders
95,018,013
Shares held (tracked funds)
84.5%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed10,200,465$3.7B10.6%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new7,301,831$2.6B7.6%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new5,845,734$2.1B6.1%2026-Q1
STATE STREET CORP added5,058,012$1.8B5.3%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added3,057,997$1.1B3.2%2026-Q1
MORGAN STANLEY trimmed2,823,547$1.0B2.9%2026-Q1
UBS Group AG added2,180,027$782M2.3%2026-Q1
GOLDMAN SACHS GROUP INC trimmed1,922,479$690M2.0%2026-Q1
JPMORGAN CHASE & CO added1,908,366$665M1.9%2026-Q1
Invesco Ltd. added1,654,047$594M1.7%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed1,537,690$554M1.6%2026-Q1
NORTHERN TRUST CORP trimmed1,418,943$509M1.5%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ trimmed1,364,997$490M1.4%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added1,148,663$412M1.2%2026-Q1
BANK OF AMERICA CORP /DE/ trimmed1,046,789$376M1.1%2026-Q1
Amundi added998,374$358M1.0%2026-Q1
Sumitomo Mitsui Trust Group, Inc. added981,885$352M1.0%2026-Q1
NORDEA INVESTMENT MANAGEMENT AB added974,623$343M1.0%2026-Q1
Fisher Asset Management, LLC added927,088$333M1.0%2026-Q1
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added904,357$324M0.9%2026-Q1
Legal & General Group Plc added814,906$292M0.9%2026-Q1
Holocene Advisors, LP trimmed787,779$283M0.8%2026-Q1
VICTORY CAPITAL MANAGEMENT INC trimmed757,183$272M0.8%2026-Q1
LAZARD ASSET MANAGEMENT LLC trimmed756,499$271M0.8%2026-Q1
DIMENSIONAL FUND ADVISORS LP added707,881$254M0.7%2026-Q1
NORGES BANK trimmed959,233$248M0.7%2026-Q1
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main trimmed645,916$232M0.7%2026-Q1
VANGUARD FIDUCIARY TRUST CO new633,773$227M0.7%2026-Q1
Bank of New York Mellon Corp trimmed630,279$226M0.7%2026-Q1
Robeco Institutional Asset Management B.V. added621,257$223M0.6%2026-Q1
ALLIANCEBERNSTEIN L.P. trimmed570,075$222M0.6%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added602,181$216M0.6%2026-Q1
RAYMOND JAMES FINANCIAL INC trimmed541,796$192M0.6%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. trimmed530,847$191M0.6%2026-Q1
AMERIPRISE FINANCIAL INC added492,495$177M0.5%2026-Q1
VOYA INVESTMENT MANAGEMENT LLC trimmed488,169$175M0.5%2026-Q1
ROYAL BANK OF CANADA trimmed464,229$167M0.5%2026-Q1
FMR LLC added459,101$165M0.5%2026-Q1
DEUTSCHE BANK AG\ added431,693$155M0.5%2026-Q1
NEUBERGER BERMAN GROUP LLC added426,476$153M0.4%2026-Q1
BROWN BROTHERS HARRIMAN & CO added425,771$153M0.4%2026-Q1
DekaBank Deutsche Girozentrale417,024$152M0.4%2026-Q1
Alecta Tjanstepension Omsesidigt trimmed412,475$148M0.4%2026-Q1
HSBC HOLDINGS PLC added406,586$146M0.4%2026-Q1
DAVENPORT & Co LLC trimmed406,350$145M0.4%2026-Q1
Mitsubishi UFJ Asset Management Co., Ltd. added398,746$143M0.4%2026-Q1
Man Group plc added362,619$130M0.4%2026-Q1
Quilter Plc added360,846$130M0.4%2026-Q1
SCHRODER INVESTMENT MANAGEMENT GROUP trimmed365,436$127M0.4%2026-Q1
WORLDQUANT MILLENNIUM ADVISORS LLC added350,007$126M0.4%2026-Q1
BARCLAYS PLC added338,581$122M0.4%2026-Q1
Nuveen, LLC added336,357$121M0.4%2026-Q1
Swiss National Bank added329,980$118M0.3%2026-Q1
KING LUTHER CAPITAL MANAGEMENT CORP trimmed304,201$109M0.3%2026-Q1
SATURNA CAPITAL CORP added301,481$108M0.3%2026-Q1
GREAT LAKES ADVISORS, LLC added291,024$104M0.3%2026-Q1
BLAIR WILLIAM & CO/IL added284,067$102M0.3%2026-Q1
Thrivent Financial for Lutherans trimmed283,842$102M0.3%2026-Q1
MAIRS & POWER INC trimmed283,553$102M0.3%2026-Q1
WELLS FARGO & COMPANY/MN trimmed276,336$99M0.3%2026-Q1
Eurizon Capital SGR S.p.A. trimmed275,966$98M0.3%2026-Q1
PRIMECAP MANAGEMENT CO/CA/ trimmed254,630$91M0.3%2026-Q1
HUNTINGTON NATIONAL BANK added250,549$90M0.3%2026-Q1
JENNISON ASSOCIATES LLC added250,085$90M0.3%2026-Q1
Vanguard Global Advisers, LLC new245,287$88M0.3%2026-Q1
Allianz Asset Management GmbH added241,526$87M0.3%2026-Q1
CANADA PENSION PLAN INVESTMENT BOARD trimmed238,018$85M0.2%2026-Q1
FEDERATED HERMES, INC. added234,231$84M0.2%2026-Q1
ONTARIO TEACHERS PENSION PLAN BOARD trimmed233,214$84M0.2%2026-Q1
AGF MANAGEMENT LTD added229,919$83M0.2%2026-Q1
RHUMBLINE ADVISERS trimmed211,016$76M0.2%2026-Q1
WESTFIELD CAPITAL MANAGEMENT CO LP trimmed206,277$74M0.2%2026-Q1
BNP PARIBAS FINANCIAL MARKETS added205,426$74M0.2%2026-Q1
STIFEL FINANCIAL CORP added204,981$74M0.2%2026-Q1
Caisse de depot et placement du Quebec added202,844$73M0.2%2026-Q1
MILLENNIUM MANAGEMENT LLC trimmed199,360$72M0.2%2026-Q1
Reynders McVeigh Capital Management, LLC trimmed197,266$71M0.2%2026-Q1
California Public Employees Retirement System trimmed196,223$70M0.2%2026-Q1
LOS ANGELES CAPITAL MANAGEMENT LLC added192,747$69M0.2%2026-Q1
Birch Hill Investment Advisors LLC trimmed188,730$68M0.2%2026-Q1
CITIGROUP INC added188,165$68M0.2%2026-Q1
VANGUARD ASSET MANAGEMENT, Ltd new182,621$66M0.2%2026-Q1
Candriam S.C.A. added182,451$65M0.2%2026-Q1
CANADA LIFE ASSURANCE Co added175,943$63M0.2%2026-Q1
CITADEL ADVISORS LLC trimmed171,781$62M0.2%2026-Q1
National Pension Service added171,018$61M0.2%2026-Q1
SEB Asset Management AB new170,940$61M0.2%2026-Q1
HighTower Advisors, LLC added168,297$60M0.2%2026-Q1
WATERS PARKERSON & CO., LLC trimmed167,144$60M0.2%2026-Q1
D. E. Shaw & Co., Inc. added167,106$60M0.2%2026-Q1
UniSuper Management Pty Ltd added166,605$60M0.2%2026-Q1
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed165,962$60M0.2%2026-Q1
Stephens Investment Management Group LLC trimmed165,027$59M0.2%2026-Q1
LPL Financial LLC trimmed164,587$59M0.2%2026-Q1
FRANKLIN RESOURCES INC trimmed161,559$58M0.2%2026-Q1
VANGUARD GROUP INC added14,157,058$5.5B16.0%2025-Q4 stale
Fullerton Fund Management Co Ltd. added463,267$180M0.5%2025-Q4 stale
Champlain Investment Partners, LLC trimmed356,115$124M0.4%2025-Q3 stale
Artisan Partners Limited Partnership added218,176$85M0.2%2025-Q4 stale
Freestone Grove Partners LP added161,697$63M0.2%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.

HoldersTotal shares

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.

Learn how to read institutional ownership