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Institutional Ownership · SEC Form 13F

Who owns OMC (OMC)


Which tracked institutional funds hold OMC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OMC 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.

1,119
Institutional holders
298,832,116
Shares held (tracked funds)
95.4%
Of shares outstanding

How the tape is positioned

187 tracked funds added or opened OMC while 300 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

OMC’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% 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 OMC more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in OMC 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 1119 tracked filers holding OMC, 592 increased or opened the position and 541 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 OMC 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 43

  • VANGUARD CAPITAL MANAGEMENT LLC$1.5B
  • VANGUARD PORTFOLIO MANAGEMENT LLC$1.1B
  • VANGUARD FIDUCIARY TRUST CO$133M
  • SOUND SHORE MANAGEMENT INC /CT/$63M
  • Vanguard Global Advisers, LLC$52M
  • VANGUARD ASSET MANAGEMENT, Ltd$48M

Full exits 63

  • VANGUARD GROUP INC$3.1B
  • Alyeska Investment Group, L.P.$124M
  • Pacer Advisors, Inc.$106M
  • Junto Capital Management LP$82M
  • Holocene Advisors, LP$59M
  • TODD ASSET MANAGEMENT LLC$25M

Largest adds

  • STATE STREET CORP$176M
  • MORGAN STANLEY$136M
  • Capital Research Global Investors$125M
  • UBS Group AG$110M
  • FMR LLC$99M
  • VICTORY CAPITAL MANAGEMENT INC$75M

Largest trims

  • BlackRock, Inc.$540M
  • CANADA PENSION PLAN INVESTMENT BOARD$267M
  • CITADEL ADVISORS LLC$248M
  • WELLINGTON MANAGEMENT GROUP LLP$231M
  • GOLDMAN SACHS GROUP INC$223M
  • Beutel, Goodman & Co Ltd.$143M

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
STATE STREET CORP added27,760,218$2.1B8.9%2026-Q1
BlackRock, Inc. trimmed24,116,377$1.8B7.7%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new20,295,276$1.5B6.5%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new14,840,407$1.1B4.7%2026-Q1
Bank of New York Mellon Corp added12,098,191$911M3.9%2026-Q1
JPMORGAN CHASE & CO added12,031,678$906M3.8%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added9,313,917$700M3.0%2026-Q1
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added8,736,665$665M2.8%2026-Q1
First Eagle Investment Management, LLC added7,303,113$550M2.3%2026-Q1
MORGAN STANLEY added6,925,544$522M2.2%2026-Q1
Capital Research Global Investors added6,695,199$504M2.1%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added6,357,489$480M2.0%2026-Q1
FMR LLC added6,007,869$452M1.9%2026-Q1
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed5,376,034$405M1.7%2026-Q1
Baird Financial Group, Inc. added4,710,039$355M1.5%2026-Q1
AQR CAPITAL MANAGEMENT LLC added4,423,294$333M1.4%2026-Q1
Beutel, Goodman & Co Ltd. trimmed4,128,466$311M1.3%2026-Q1
DIMENSIONAL FUND ADVISORS LP trimmed3,978,658$300M1.3%2026-Q1
Invesco Ltd. added3,892,296$293M1.2%2026-Q1
GOLDMAN SACHS GROUP INC trimmed3,590,553$270M1.1%2026-Q1
NORTHERN TRUST CORP trimmed3,397,365$256M1.1%2026-Q1
VICTORY CAPITAL MANAGEMENT INC added3,080,883$232M1.0%2026-Q1
UBS Group AG added2,634,507$198M0.8%2026-Q1
WELLINGTON MANAGEMENT GROUP LLP trimmed2,507,726$189M0.8%2026-Q1
COOKE & BIELER LP trimmed2,283,397$172M0.7%2026-Q1
BANK OF AMERICA CORP /DE/ added2,193,987$165M0.7%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added2,037,462$153M0.6%2026-Q1
CANADA PENSION PLAN INVESTMENT BOARD trimmed1,999,483$151M0.6%2026-Q1
ENVESTNET ASSET MANAGEMENT INC added1,943,875$146M0.6%2026-Q1
VANGUARD FIDUCIARY TRUST CO new1,766,822$133M0.6%2026-Q1
ROYAL BANK OF CANADA added1,715,293$129M0.5%2026-Q1
BARCLAYS PLC added1,571,845$118M0.5%2026-Q1
Legal & General Group Plc added1,531,460$115M0.5%2026-Q1
PRINCIPAL FINANCIAL GROUP INC added1,488,178$112M0.5%2026-Q1
LAZARD ASSET MANAGEMENT LLC trimmed1,481,974$112M0.5%2026-Q1
DEUTSCHE BANK AG\ added1,450,415$109M0.5%2026-Q1
RAYMOND JAMES FINANCIAL INC added1,412,485$106M0.5%2026-Q1
CRAWFORD INVESTMENT COUNSEL INC added1,311,252$99M0.4%2026-Q1
CITADEL ADVISORS LLC trimmed1,245,356$94M0.4%2026-Q1
Cullen Capital Management, LLC added1,164,690$88M0.4%2026-Q1
BRANDES INVESTMENT PARTNERS, LP added1,145,912$86M0.4%2026-Q1
ARIEL INVESTMENTS, LLC added1,104,945$83M0.4%2026-Q1
LPL Financial LLC added1,024,751$77M0.3%2026-Q1
Nuveen, LLC trimmed979,995$74M0.3%2026-Q1
Amundi trimmed971,699$73M0.3%2026-Q1
CITIGROUP INC added961,986$72M0.3%2026-Q1
National Pension Service added960,483$72M0.3%2026-Q1
ASSETMARK, INC added931,933$70M0.3%2026-Q1
Clark Capital Management Group, Inc. trimmed924,171$70M0.3%2026-Q1
Swiss National Bank added923,271$70M0.3%2026-Q1
BNP PARIBAS FINANCIAL MARKETS trimmed909,386$68M0.3%2026-Q1
Epoch Investment Partners, Inc. added856,719$65M0.3%2026-Q1
SOUND SHORE MANAGEMENT INC /CT/ new842,962$63M0.3%2026-Q1
WELLS FARGO & COMPANY/MN added824,261$62M0.3%2026-Q1
Sumitomo Mitsui Trust Group, Inc. trimmed798,696$60M0.3%2026-Q1
Boston Partners trimmed782,689$59M0.2%2026-Q1
FIRST TRUST ADVISORS LP added756,426$57M0.2%2026-Q1
BANK OF MONTREAL /CAN/ trimmed752,469$57M0.2%2026-Q1
Mitsubishi UFJ Asset Management Co., Ltd. added724,426$55M0.2%2026-Q1
RWC Asset Management LLP added722,861$54M0.2%2026-Q1
SEI INVESTMENTS CO added715,718$54M0.2%2026-Q1
California Public Employees Retirement System trimmed703,319$53M0.2%2026-Q1
HSBC HOLDINGS PLC trimmed693,921$52M0.2%2026-Q1
Vanguard Global Advisers, LLC new688,029$52M0.2%2026-Q1
PFA Pension, Forsikringsaktieselskab trimmed660,779$50M0.2%2026-Q1
RHUMBLINE ADVISERS trimmed653,692$49M0.2%2026-Q1
Zurcher Kantonalbank (Zurich Cantonalbank) added641,489$48M0.2%2026-Q1
VANGUARD ASSET MANAGEMENT, Ltd new633,911$48M0.2%2026-Q1
GMT Capital Corp new629,300$47M0.2%2026-Q1
THOMPSON SIEGEL & WALMSLEY LLC added593,918$45M0.2%2026-Q1
MILLER HOWARD INVESTMENTS INC /NY added581,969$44M0.2%2026-Q1
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed532,308$40M0.2%2026-Q1
SG Americas Securities, LLC added530,862$40M0.2%2026-Q1
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. added514,801$39M0.2%2026-Q1
Swiss Life Asset Management Ltd added502,892$38M0.2%2026-Q1
VAUGHAN DAVID INVESTMENTS LLC/IL added486,633$37M0.2%2026-Q1
AMERIPRISE FINANCIAL INC trimmed484,542$37M0.2%2026-Q1
ALLIANCEBERNSTEIN L.P. added447,832$36M0.2%2026-Q1
Janney Montgomery Scott LLC trimmed453,961$34M0.1%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ trimmed450,619$34M0.1%2026-Q1
Invenomic Capital Management LP trimmed447,075$34M0.1%2026-Q1
GLENMEDE TRUST CO NA added447,005$34M0.1%2026-Q1
Artisan Partners Limited Partnership trimmed433,573$33M0.1%2026-Q1
CONNING INC. added432,749$33M0.1%2026-Q1
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added432,609$33M0.1%2026-Q1
BANK OF NOVA SCOTIA added431,429$32M0.1%2026-Q1
TD Asset Management Inc trimmed421,737$32M0.1%2026-Q1
MANUFACTURERS LIFE INSURANCE COMPANY, THE added418,310$32M0.1%2026-Q1
Russell Investments Group, Ltd. trimmed395,551$30M0.1%2026-Q1
DANSKE BANK A/S trimmed390,611$29M0.1%2026-Q1
ZWJ INVESTMENT COUNSEL INC added377,828$28M0.1%2026-Q1
Gotham Asset Management, LLC trimmed376,787$28M0.1%2026-Q1
VANGUARD GROUP INC added38,782,166$3.1B13.3%2025-Q4 stale
Alyeska Investment Group, L.P. new1,540,468$124M0.5%2025-Q4 stale
Pacer Advisors, Inc. trimmed1,316,832$106M0.5%2025-Q4 stale
Junto Capital Management LP added1,010,474$82M0.3%2025-Q4 stale
Holocene Advisors, LP added732,205$59M0.3%2025-Q4 stale
SONA ASSET MANAGEMENT (US) LLC new557,198$46M0.2%2025-Q1 stale
Glenmede Investment Management, LP trimmed435,204$35M0.2%2025-Q3 stale
AXA S.A. added404,236$29M0.1%2025-Q2 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