Who owns GLW (GLW)
Which tracked institutional funds hold GLW, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GLW 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
The tracked-fund tape on GLW is one-sided between 2025-Q4 and 2026-Q1: 1156 added or opened and 197 trimmed or exited — on balance accumulating.
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
GLW’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.2% of its own reported 13F book, while the median holder sizes it at 0.2% of theirs — a 0.0pp gap the other way — the median holder sizes GLW more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in GLW 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 2229 tracked filers holding GLW, 1155 increased or opened the position and 977 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 GLW 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 140
- VANGUARD CAPITAL MANAGEMENT LLC$6.9B
- VANGUARD PORTFOLIO MANAGEMENT LLC$3.8B
- VANGUARD FIDUCIARY TRUST CO$597M
- LONE PINE CAPITAL LLC$506M
- Anther Capital Ltd$408M
- Aspex Management (HK) Ltd$346M
Full exits 91
- VANGUARD GROUP INC$8.7B
- Slate Path Capital LP$76M
- PointState Capital LP$75M
- Bornite Capital Management LP$64M
- Freestone Grove Partners LP$54M
- COMERICA BANK$54M
Largest adds
- BlackRock, Inc.$3.3B
- FMR LLC$2.1B
- STATE STREET CORP$1.7B
- Capital Research Global Investors$1.5B
- GEODE CAPITAL MANAGEMENT, LLC$1.1B
- MORGAN STANLEY$799M
Largest trims
- NORGES BANK$472M
- LOS ANGELES CAPITAL MANAGEMENT LLC$215M
- Bank Julius Baer & Co. Ltd, Zurich$108M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$106M
- WORLDQUANT MILLENNIUM ADVISORS LLC$84M
- Point72 Asset Management, L.P.$70M
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. added | 64,942,140 | $8.8B | 11.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 50,456,014 | $6.9B | 8.6% | 2026-Q1 |
| STATE STREET CORP trimmed | 36,263,357 | $4.9B | 6.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 28,271,740 | $3.8B | 4.8% | 2026-Q1 |
| FMR LLC added | 24,909,128 | $3.4B | 4.3% | 2026-Q1 |
| Capital Research Global Investors added | 21,847,495 | $3.0B | 3.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 20,964,679 | $2.8B | 3.6% | 2026-Q1 |
| MORGAN STANLEY added | 15,666,934 | $2.1B | 2.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 14,499,109 | $2.0B | 2.5% | 2026-Q1 |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO trimmed | 13,423,216 | $1.8B | 2.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 11,871,322 | $1.5B | 1.9% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 8,727,680 | $1.2B | 1.5% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 8,698,937 | $1.2B | 1.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 7,972,197 | $1.1B | 1.4% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC trimmed | 8,106,869 | $1.0B | 1.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 7,555,433 | $1.0B | 1.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 6,948,080 | $957M | 1.2% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 6,178,182 | $840M | 1.1% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 5,532,094 | $752M | 0.9% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 5,017,721 | $682M | 0.9% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 5,006,978 | $681M | 0.9% | 2026-Q1 |
| Legal & General Group Plc trimmed | 4,886,436 | $664M | 0.8% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 4,388,369 | $597M | 0.8% | 2026-Q1 |
| UBS Group AG added | 4,380,405 | $596M | 0.8% | 2026-Q1 |
| Invesco Ltd. trimmed | 4,280,958 | $582M | 0.7% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 4,244,624 | $577M | 0.7% | 2026-Q1 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 4,134,772 | $562M | 0.7% | 2026-Q1 |
| Amundi trimmed | 3,958,324 | $538M | 0.7% | 2026-Q1 |
| LONDON CO OF VIRGINIA trimmed | 3,795,637 | $516M | 0.7% | 2026-Q1 |
| LONE PINE CAPITAL LLC new | 3,718,147 | $506M | 0.6% | 2026-Q1 |
| Mariner, LLC added | 3,562,752 | $484M | 0.6% | 2026-Q1 |
| Polar Capital Holdings Plc added | 3,333,777 | $453M | 0.6% | 2026-Q1 |
| NORGES BANK trimmed | 9,824,449 | $450M | 0.6% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 3,008,544 | $409M | 0.5% | 2026-Q1 |
| Anther Capital Ltd new | 3,002,986 | $408M | 0.5% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 2,967,752 | $404M | 0.5% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 2,741,635 | $373M | 0.5% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 2,672,986 | $363M | 0.5% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 2,615,772 | $351M | 0.4% | 2026-Q1 |
| Aspex Management (HK) Ltd new | 2,544,734 | $346M | 0.4% | 2026-Q1 |
| BARCLAYS PLC added | 2,482,173 | $338M | 0.4% | 2026-Q1 |
| Swiss National Bank added | 2,390,400 | $325M | 0.4% | 2026-Q1 |
| Assenagon Asset Management S.A. added | 2,377,902 | $323M | 0.4% | 2026-Q1 |
| AGF MANAGEMENT LTD added | 2,349,146 | $319M | 0.4% | 2026-Q1 |
| Whale Rock Capital Management LLC trimmed | 2,297,424 | $312M | 0.4% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 2,278,291 | $310M | 0.4% | 2026-Q1 |
| Nuveen, LLC added | 2,219,531 | $302M | 0.4% | 2026-Q1 |
| National Pension Service trimmed | 2,193,110 | $298M | 0.4% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 2,160,748 | $294M | 0.4% | 2026-Q1 |
| Evergreen Quality Fund GP, Ltd. trimmed | 2,009,597 | $273M | 0.3% | 2026-Q1 |
| SG Americas Securities, LLC added | 2,004,676 | $273M | 0.3% | 2026-Q1 |
| WT Asset Management Ltd added | 1,978,013 | $269M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 1,932,742 | $263M | 0.3% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,834,655 | $249M | 0.3% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 1,802,325 | $245M | 0.3% | 2026-Q1 |
| LPL Financial LLC added | 1,755,920 | $239M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 1,740,855 | $237M | 0.3% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 1,717,823 | $234M | 0.3% | 2026-Q1 |
| TD Asset Management Inc trimmed | 1,716,990 | $233M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 1,666,789 | $227M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 1,552,898 | $207M | 0.3% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 1,516,773 | $206M | 0.3% | 2026-Q1 |
| Capital World Investors new | 1,423,400 | $194M | 0.2% | 2026-Q1 |
| KBC Group NV added | 1,420,527 | $193M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 1,410,571 | $192M | 0.2% | 2026-Q1 |
| BOWEN HANES & CO INC trimmed | 1,377,592 | $187M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 1,364,068 | $185M | 0.2% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 1,332,860 | $181M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 1,264,905 | $172M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 1,241,012 | $169M | 0.2% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 1,203,437 | $164M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 1,181,020 | $161M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 1,148,222 | $156M | 0.2% | 2026-Q1 |
| Appaloosa LP trimmed | 1,129,500 | $154M | 0.2% | 2026-Q1 |
| Korea Investment CORP added | 1,070,817 | $146M | 0.2% | 2026-Q1 |
| XN LP new | 1,010,411 | $137M | 0.2% | 2026-Q1 |
| COOKSON PEIRCE & CO INC trimmed | 939,365 | $128M | 0.2% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 934,734 | $127M | 0.2% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 932,196 | $127M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC added | 922,398 | $125M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 1,426,002 | $125M | 0.2% | 2026-Q1 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC trimmed | 863,573 | $124M | 0.2% | 2026-Q1 |
| STOREBRAND ASSET MANAGEMENT AS trimmed | 893,822 | $122M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 893,451 | $121M | 0.2% | 2026-Q1 |
| Focus Partners Wealth trimmed | 868,767 | $118M | 0.1% | 2026-Q1 |
| SurgoCap Partners LP new | 858,515 | $117M | 0.1% | 2026-Q1 |
| BAHL & GAYNOR INC trimmed | 839,119 | $114M | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 832,413 | $113M | 0.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 780,395 | $106M | 0.1% | 2026-Q1 |
| Cullen/Frost Bankers, Inc. trimmed | 772,482 | $105M | 0.1% | 2026-Q1 |
| REAVES W H & CO INC added | 763,193 | $104M | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 712,179 | $97M | 0.1% | 2026-Q1 |
| KEYBANK NATIONAL ASSOCIATION/OH trimmed | 703,463 | $96M | 0.1% | 2026-Q1 |
| E Fund Management Co., Ltd. added | 691,273 | $94M | 0.1% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 689,467 | $94M | 0.1% | 2026-Q1 |
| FIFTH THIRD BANCORP added | 688,166 | $94M | 0.1% | 2026-Q1 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM added | 687,540 | $93M | 0.1% | 2026-Q1 |
| CACTI ASSET MANAGEMENT LLC trimmed | 687,179 | $93M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 99,279,997 | $8.7B | 11.0% | 2025-Q4 stale |
| Analog Century Management LP added | 1,368,477 | $112M | 0.1% | 2025-Q3 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.