Who owns OC (OC)
Which tracked institutional funds hold OC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OC 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
136 tracked funds added or opened OC while 168 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
OC’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 0.1pp gap the other way — the median holder sizes OC more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in OC 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 629 tracked filers holding OC, 356 increased or opened the position and 301 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 OC 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 38
- VANGUARD PORTFOLIO MANAGEMENT LLC$596M
- VANGUARD CAPITAL MANAGEMENT LLC$392M
- SOUND SHORE MANAGEMENT INC /CT/$64M
- VANGUARD FIDUCIARY TRUST CO$55M
- BALYASNY ASSET MANAGEMENT L.P.$49M
- VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.$46M
Full exits 57
- VANGUARD GROUP INC$1.1B
- APPALOOSA LP$106M
- TWO SIGMA ADVISERS, LP$49M
- Pacer Advisors, Inc.$43M
- VIRGINIA RETIREMENT SYSTEMS ET Al$39M
- Qube Research & Technologies Ltd$33M
Largest adds
- AMERICAN CENTURY COMPANIES INC$186M
- AQR CAPITAL MANAGEMENT LLC$110M
- Allspring Global Investments Holdings, LLC$109M
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$96M
- NORDEA INVESTMENT MANAGEMENT AB$79M
- HARRIS ASSOCIATES L P$68M
Largest trims
- BlackRock, Inc.$208M
- PRICE T ROWE ASSOCIATES INC /MD/$125M
- FMR LLC$77M
- Point72 Asset Management, L.P.$49M
- Empower Advisory Group, LLC$48M
- Freestone Grove Partners LP$47M
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 | 7,746,688 | $838M | 9.0% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 5,508,121 | $596M | 6.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,618,028 | $392M | 4.2% | 2026-Q1 |
| STATE STREET CORP trimmed | 3,064,304 | $334M | 3.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 2,764,616 | $299M | 3.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 2,534,701 | $271M | 2.9% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 2,219,335 | $240M | 2.6% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 2,179,214 | $236M | 2.5% | 2026-Q1 |
| DAVIS SELECTED ADVISERS added | 2,100,935 | $227M | 2.4% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 2,042,502 | $221M | 2.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,888,070 | $214M | 2.3% | 2026-Q1 |
| NORGES BANK added | 1,208,406 | $173M | 1.8% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 1,523,829 | $165M | 1.8% | 2026-Q1 |
| LSV ASSET MANAGEMENT trimmed | 1,459,821 | $158M | 1.7% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 1,278,118 | $138M | 1.5% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,240,204 | $129M | 1.4% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC added | 1,170,179 | $126M | 1.3% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB added | 1,126,860 | $118M | 1.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 972,510 | $105M | 1.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 960,377 | $104M | 1.1% | 2026-Q1 |
| GENDELL JEFFREY L added | 940,522 | $102M | 1.1% | 2026-Q1 |
| HARRIS ASSOCIATES L P added | 915,393 | $99M | 1.1% | 2026-Q1 |
| MORGAN STANLEY added | 825,878 | $89M | 1.0% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 763,547 | $83M | 0.9% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 744,127 | $81M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 732,333 | $79M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 718,359 | $78M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 700,527 | $76M | 0.8% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 682,556 | $74M | 0.8% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 619,538 | $67M | 0.7% | 2026-Q1 |
| SOUND SHORE MANAGEMENT INC /CT/ new | 592,330 | $64M | 0.7% | 2026-Q1 |
| Clean Energy Transition LLP added | 574,854 | $62M | 0.7% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP trimmed | 555,232 | $58M | 0.6% | 2026-Q1 |
| DekaBank Deutsche Girozentrale | 514,195 | $56M | 0.6% | 2026-Q1 |
| Gotham Asset Management, LLC added | 510,371 | $55M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 508,209 | $55M | 0.6% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 499,158 | $54M | 0.6% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 468,254 | $51M | 0.5% | 2026-Q1 |
| LGT Group Foundation trimmed | 459,525 | $50M | 0.5% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 452,040 | $49M | 0.5% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 449,745 | $49M | 0.5% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 419,923 | $47M | 0.5% | 2026-Q1 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. new | 423,790 | $46M | 0.5% | 2026-Q1 |
| UBS Group AG added | 418,613 | $45M | 0.5% | 2026-Q1 |
| FMR LLC trimmed | 411,939 | $45M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 409,896 | $44M | 0.5% | 2026-Q1 |
| BANQUE PICTET & CIE SA trimmed | 402,697 | $44M | 0.5% | 2026-Q1 |
| Lodge Hill Capital, LLC added | 363,570 | $39M | 0.4% | 2026-Q1 |
| River Road Asset Management, LLC added | 358,408 | $39M | 0.4% | 2026-Q1 |
| SG Americas Securities, LLC added | 356,932 | $39M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 335,185 | $36M | 0.4% | 2026-Q1 |
| Callodine Capital Management, LP added | 326,730 | $35M | 0.4% | 2026-Q1 |
| Nuveen, LLC trimmed | 323,487 | $35M | 0.4% | 2026-Q1 |
| Bank Pictet & Cie (Europe) AG trimmed | 308,286 | $33M | 0.4% | 2026-Q1 |
| Swedbank AB added | 293,976 | $32M | 0.3% | 2026-Q1 |
| Amundi added | 288,809 | $31M | 0.3% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC added | 279,711 | $30M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 277,093 | $30M | 0.3% | 2026-Q1 |
| Raiffeisen Bank International AG trimmed | 280,083 | $29M | 0.3% | 2026-Q1 |
| Apollo Management Holdings, L.P. new | 240,600 | $26M | 0.3% | 2026-Q1 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 239,548 | $26M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 235,194 | $25M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 223,372 | $24M | 0.3% | 2026-Q1 |
| CINCINNATI INSURANCE CO | 212,000 | $23M | 0.2% | 2026-Q1 |
| CINCINNATI FINANCIAL CORP | 209,000 | $23M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 208,320 | $23M | 0.2% | 2026-Q1 |
| Kimelman & Baird, LLC trimmed | 196,230 | $21M | 0.2% | 2026-Q1 |
| Retirement Systems of Alabama added | 191,813 | $21M | 0.2% | 2026-Q1 |
| ANTIPODES PARTNERS Ltd trimmed | 184,456 | $20M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 181,184 | $20M | 0.2% | 2026-Q1 |
| Invenomic Capital Management LP added | 175,935 | $19M | 0.2% | 2026-Q1 |
| GOLDENTREE ASSET MANAGEMENT LP trimmed | 176,201 | $19M | 0.2% | 2026-Q1 |
| Swiss National Bank trimmed | 162,500 | $18M | 0.2% | 2026-Q1 |
| ARGA Investment Management, LP new | 161,642 | $17M | 0.2% | 2026-Q1 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 159,397 | $17M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 156,290 | $17M | 0.2% | 2026-Q1 |
| Triodos Investment Management BV | 156,000 | $17M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 153,581 | $17M | 0.2% | 2026-Q1 |
| BARCLAYS PLC trimmed | 147,420 | $16M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 9,627,651 | $1.1B | 11.5% | 2025-Q4 stale |
| APPALOOSA LP added | 950,000 | $106M | 1.1% | 2025-Q4 stale |
| AustralianSuper Pty Ltd trimmed | 351,009 | $50M | 0.5% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 436,400 | $49M | 0.5% | 2025-Q4 stale |
| 140 Summer Partners LP new | 328,166 | $47M | 0.5% | 2025-Q1 stale |
| Pacer Advisors, Inc. added | 381,887 | $43M | 0.5% | 2025-Q4 stale |
| VIRGINIA RETIREMENT SYSTEMS ET Al trimmed | 351,500 | $39M | 0.4% | 2025-Q4 stale |
| Qube Research & Technologies Ltd trimmed | 293,152 | $33M | 0.4% | 2025-Q4 stale |
| HIGHLAND PEAK CAPITAL, LLC new | 225,919 | $32M | 0.3% | 2025-Q3 stale |
| J. Goldman & Co LP added | 223,396 | $32M | 0.3% | 2025-Q1 stale |
| JANE STREET GROUP, LLC added | 253,777 | $28M | 0.3% | 2025-Q4 stale |
| Sumitomo Mitsui Trust Group, Inc. added | 196,315 | $28M | 0.3% | 2025-Q3 stale |
| Bridgewater Associates, LP added | 246,565 | $28M | 0.3% | 2025-Q4 stale |
| BW Gestao de Investimentos Ltda. new | 144,000 | $20M | 0.2% | 2025-Q3 stale |
| ARIEL INVESTMENTS, LLC added | 140,449 | $19M | 0.2% | 2025-Q2 stale |
| Ceredex Value Advisors LLC trimmed | 133,150 | $19M | 0.2% | 2025-Q3 stale |
| Aware Super Pty Ltd as trustee of Aware Super trimmed | 133,027 | $19M | 0.2% | 2025-Q3 stale |
| Junto Capital Management LP added | 132,034 | $19M | 0.2% | 2025-Q3 stale |
| Caisse de depot et placement du Quebec added | 117,387 | $17M | 0.2% | 2025-Q3 stale |
| Interval Partners, LP trimmed | 140,221 | $16M | 0.2% | 2025-Q4 stale |
| HRT FINANCIAL LP added | 140,119 | $16M | 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.