CORNING INC GLW
COM · Common Stock · CUSIP 219350105 · ISIN US2193501051
American manufacturer of glass & ceramics
- SectorMaterials
- IndustryDrawing & Insulating of Nonferrous Wire
- HeadquartersCorning, NY
- Founded1851
- Websitecorning.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($169.5m this quarter). Holder counts are more reliable. Shares outstanding: 856.5m as of 2025-04-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $45.70. Options: 42 managers hold calls ($979.9m notional), 30 hold puts ($189.3m).
Trends to Q1 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 1,120 |
| Q4 2022 | 1,165 |
| Q1 2023 | 1,177 |
| Q2 2023 | 1,161 |
| Q3 2023 | 1,143 |
| Q4 2023 | 1,195 |
| Q1 2024 | 1,195 |
| Q2 2024 | 1,279 |
| Q3 2024 | 1,361 |
| Q4 2024 | 1,478 |
| Q1 2025 | 1,468 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 503 | 523 |
| Q3 2023 | 487 | 527 |
| Q4 2023 | 445 | 582 |
| Q1 2024 | 514 | 542 |
| Q2 2024 | 598 | 524 |
| Q3 2024 | 615 | 588 |
| Q4 2024 | 608 | 613 |
| Q1 2025 | 705 | 628 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $439.3m | $208.4m | 0.47 |
| Q3 2024 | $566.4m | $275.8m | 0.49 |
| Q4 2024 | $625.4m | $229.7m | 0.37 |
| Q1 2025 | $979.9m | $189.3m | 0.19 |
Biggest buyers
| PointState Capital LP | New | +5.6m |
| BANK OF AMERICA CORP /DE/ | Added | +4.2m |
| LONDON CO OF VIRGINIA | Added | +4.0m |
| Point72 Asset Management, L.P. | Added | +3.3m |
| GOLDMAN SACHS GROUP INC | Added | +2.6m |
| Amundi | Added | +2.5m |
| D. E. Shaw & Co., Inc. | Added | +1.7m |
| Assenagon Asset Management S.A. | Added | +1.5m |
| STATE STREET CORP | Added | +1.4m |
| UBS Group AG | Added | +1.4m |
Biggest sellers
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -10.3m |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -10.2m |
| VANGUARD GROUP INC | Reduced | -3.5m |
| JPMORGAN CHASE & CO | Reduced | -2.1m |
| CITADEL ADVISORS LLC | Reduced | -1.4m |
| Slate Path Capital LP | Reduced | -1.2m |
| DNB Asset Management AS | Reduced | -1.1m |
| YACKTMAN ASSET MANAGEMENT LP | Sold out | -852.0k |
| SHAPIRO CAPITAL MANAGEMENT LLC | Sold out | -837.5k |
| LMR Partners LLP | Reduced | -800.4k |
Biggest calls
| UBS Group AG | Added | $248.9m5.4m shares |
| PointState Capital LP | New | $192.3m4.2m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $99.4m2.2m shares |
| CITADEL ADVISORS LLC | Added | $78.0m1.7m shares |
| PEAK6 LLC | Added | $50.5m1.1m shares |
| SIMPLEX TRADING, LLC | Reduced | $36.8m804.8k shares |
| GROUP ONE TRADING LLC | Reduced | $33.5m730.7k shares |
| Squarepoint Ops LLC | Added | $28.3m617.5k shares |
| CITIGROUP INC | New | $25.9m566.0k shares |
| MAPLELANE CAPITAL, LLC | Reduced | $22.9m500.0k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $32.8m715.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $30.3m662.1k shares |
| UBS Group AG | Reduced | $22.1m483.4k shares |
| PEAK6 LLC | Added | $18.1m396.2k shares |
| CAPITAL FUND MANAGEMENT S.A. | Added | $11.9m260.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $11.6m252.8k shares |
| GOLDMAN SACHS GROUP INC | Added | $10.1m220.0k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $6.2m134.5k shares |
| IMC-Chicago, LLC | Reduced | $5.8m127.5k shares |
| JANE STREET GROUP, LLC | Added | $5.4m117.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Samsung Display Co., Ltd. 13G · passive investor -0.4 pts · filed 2025-09-10 | 7.9% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.8% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q1 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 6 | $4.4m | $1.2m |
| Q3 2023 | 0 | — | 2 | $4.0m | — |
| Q4 2023 | 0 | — | 1 | $866.3k | — |
| Q1 2024 | 0 | — | 5 | $1.7m | — |
| Q2 2024 | 0 | — | 7 | $7.8m | $705.3k |
| Q3 2024 | 0 | — | 4 | $3.6m | $84.9k |
| Q4 2024 | 0 | — | 7 | $12.2m | — |
| Q1 2025 | 0 | — | 4 | $7.5m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-02-28 | WEEKS WENDELL P Chairman and CEO, director | Sold | $2.8m55.8k shares |
| 2025-02-27 | WEEKS WENDELL P Chairman and CEO, director | Sold | $2.2m44.2k shares |
| 2025-02-19 | Schlesinger Edward A Exec. Vice President and CFO | Sold | $218.5k4.1k shares |
| 2025-02-18 | Zhang John Z SVP&GM Glass Innov. & Asia | Sold | $744.8k14.1k shares |
| 2025-01-31 | Musser Eric S President and COO | Sold | $1.6m30.0k shares |
| 2025-01-30 | Bell Michael Alan Retired Sr VP & GM, Opt Comm. | Sold | $110.2k2.2k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.08% of their portfolio | 96.4m $4.4bn | Reduced -3.5m |
| BlackRock, Inc. 0.06% of their portfolio | 62.8m $2.9bn | Reduced -502.6k |
| STATE STREET CORP 0.07% of their portfolio | 36.1m $1.7bn | Added +1.4m |
| GEODE CAPITAL MANAGEMENT, LLC 0.07% of their portfolio | 19.3m $882.6m | Added +860.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.16% of their portfolio | 18.5m $846.0m | Reduced -10.2m |
| BANK OF AMERICA CORP /DE/ 0.07% of their portfolio | 17.6m $804.0m | Added +4.2m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.10% of their portfolio | 17.0m $778.5m | Reduced -10.3m |
| MORGAN STANLEY 0.05% of their portfolio | 15.4m $702.9m | Reduced -136.3k |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 0.59% of their portfolio | 13.9m $637.3m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.16% of their portfolio | 12.7m $582.0m | Reduced -757.2k |
| JPMORGAN CHASE & CO 0.04% of their portfolio | 10.8m $492.3m | Reduced -2.1m |
| NORTHERN TRUST CORP 0.07% of their portfolio | 10.7m $491.0m | Reduced -144.3k |
| NORGES BANK 0.06% of their portfolio | 9.8m $449.8m | Reduced -506.6k |
| DIMENSIONAL FUND ADVISORS LP 0.11% of their portfolio | 9.3m $426.6m | Reduced -480.3k |
| PRIMECAP MANAGEMENT CO/CA/ 0.31% of their portfolio | 8.3m $377.8m | Reduced -73.9k |
| Amundi 0.10% of their portfolio | 6.4m $271.2m | Added +2.5m |
| Bank of New York Mellon Corp 0.06% of their portfolio | 6.3m $290.6m | Added +80.9k |
| Invesco Ltd. 0.05% of their portfolio | 6.3m $290.1m | Added +288.3k |
| GOLDMAN SACHS GROUP INC 0.05% of their portfolio | 6.1m $280.0m | Added +2.6m |
| UBS Group AG 0.06% of their portfolio | 5.9m $272.1m | Added +1.4m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.07% of their portfolio | 5.8m $267.5m | Added +558.2k |
| Legal & General Group Plc 0.07% of their portfolio | 5.6m $256.1m | Added +419.3k |
| PointState Capital LP 5.56% of their portfolio | 5.6m $254.1m | New |
| FIL Ltd 0.23% of their portfolio | 5.2m $240.0m | Reduced -300.1k |
| Point72 Asset Management, L.P. 0.65% of their portfolio | 5.1m $232.2m | Added +3.3m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.04% of their portfolio | 4.9m $226.1m | Added +410 |
| LONDON CO OF VIRGINIA 1.19% of their portfolio | 4.6m $208.5m | Added +4.0m |
| Mariner, LLC 0.32% of their portfolio | 4.2m $190.2m | Added +285.5k |
| DEUTSCHE BANK AG\ 0.07% of their portfolio | 3.8m $175.6m | Added +1.0m |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.06% of their portfolio | 3.6m $166.3m | Reduced -447.1k |
| California Public Employees Retirement System 0.11% of their portfolio | 3.4m $154.3m | Reduced -100.3k |
| ROYAL BANK OF CANADA 0.03% of their portfolio | 3.3m $152.9m | Reduced -601.3k |
| Polar Capital Holdings Plc 0.93% of their portfolio | 3.3m $152.5m | Added +716.8k |
| STIFEL FINANCIAL CORP 0.16% of their portfolio | 3.3m $150.5m | Reduced -6.1k |
| MILLENNIUM MANAGEMENT LLC 0.14% of their portfolio | 3.1m $143.6m | Added +282.6k |
| CITADEL ADVISORS LLC 0.13% of their portfolio | 3.0m $136.4m | Reduced -1.4m |
| Assenagon Asset Management S.A. 0.24% of their portfolio | 3.0m $135.1m | Added +1.5m |
| Slate Path Capital LP 2.38% of their portfolio | 2.9m $131.8m | Reduced -1.2m |
| Squarepoint Ops LLC 0.30% of their portfolio | 2.7m $123.8m | Added +920.2k |
| Bahl & Gaynor LLC 0.60% of their portfolio | 2.6m $116.8m | Reduced -29.2k |
| WELLS FARGO & COMPANY/MN 0.03% of their portfolio | 2.4m $112.0m | Added +141.6k |
| Swiss National Bank 0.07% of their portfolio | 2.3m $105.0m | Reduced -2.4k |
| Nuveen, LLC 0.03% of their portfolio | 2.3m $104.8m | First filing |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.43% of their portfolio | 2.1m $98.3m | Reduced -165.5k |
| NEUBERGER BERMAN GROUP LLC 0.08% of their portfolio | 2.0m $91.7m | Reduced -131.3k |
| Sumitomo Mitsui Trust Group, Inc. 0.06% of their portfolio | 1.9m $88.2m | Added +4.2k |
| FMR LLC 0.01% of their portfolio | 1.9m $87.6m | Added +907.6k |
| D. E. Shaw & Co., Inc. 0.10% of their portfolio | 1.8m $84.6m | Added +1.7m |
| BARCLAYS PLC 0.04% of their portfolio | 1.8m $83.9m | Added +262.9k |
| RAYMOND JAMES FINANCIAL INC 0.03% of their portfolio | 1.8m $80.8m | Reduced -181.0k |
| APPALOOSA LP 1.43% of their portfolio | 1.7m $79.8m | Added +243.6k |
| MARSHALL WACE, LLP 0.10% of their portfolio | 1.6m $74.4m | Reduced -453 |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.07% of their portfolio | 1.6m $72.4m | Added +325.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.05% of their portfolio | 1.5m $69.9m | First filing |
| HSBC HOLDINGS PLC 0.05% of their portfolio | 1.5m $67.8m | Added +57.7k |
| BOWEN HANES & CO INC 1.86% of their portfolio | 1.5m $66.8m | Added +14.4k |
| National Pension Service 0.06% of their portfolio | 1.4m $66.0m | Added +11.2k |
| CITIGROUP INC 0.05% of their portfolio | 1.4m $63.7m | Added +390.7k |
| RHUMBLINE ADVISERS 0.06% of their portfolio | 1.4m $62.0m | Added +77.6k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.11% of their portfolio | 1.3m $59.6m | Added +23.8k |
| ENVESTNET ASSET MANAGEMENT INC 0.02% of their portfolio | 1.3m $58.8m | Added +172.8k |
| ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio | 1.2m $55.2m | Added +92.8k |
| SG Americas Securities, LLC 0.19% of their portfolio | 1.2m $54.5m | Added +1.2m |
| LPL Financial LLC 0.02% of their portfolio | 1.2m $54.0m | Added +72.5k |
| Balyasny Asset Management L.P. 0.13% of their portfolio | 1.1m $52.4m | Added +723.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.03% of their portfolio | 1.1m $50.5m | Added +854.7k |
| BANK OF MONTREAL /CAN/ 0.03% of their portfolio | 1.1m $49.9m | Reduced -374.7k |
| FIRST TRUST ADVISORS LP 0.04% of their portfolio | 1.0m $46.5m | Reduced -294.3k |
| COOKSON PEIRCE & CO INC 2.30% of their portfolio | 998.3k $45.7m | Reduced -11.0k |
| TWINBEECH CAPITAL LP 0.81% of their portfolio | 978.3k $44.8m | Added +968.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.05% of their portfolio | 966.6k $44.3m | Added +990 |
| WORLDQUANT MILLENNIUM ADVISORS LLC 0.27% of their portfolio | 948.8k $43.4m | Reduced -14.0k |
| SHUFRO ROSE & CO LLC 3.32% of their portfolio | 919.3k $42.1m | Reduced -13.2k |
| Minneapolis Portfolio Management Group, LLC 5.78% of their portfolio | 908.5k $41.6m | Reduced -10.4k |
| PRUDENTIAL FINANCIAL INC 0.06% of their portfolio | 898.4k $41.1m | Added +483.6k |
| Cubist Systematic Strategies, LLC 0.53% of their portfolio | 875.9k $40.1m | Added +330.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 874.9k $40.1m | Reduced -2.4k |
| APG Asset Management N.V. 0.11% of their portfolio | 845.1k $35.8m | Reduced -77.6k |
| TD Asset Management Inc 0.03% of their portfolio | 811.7k $37.2m | Reduced -1.5k |
| NATIONAL BANK OF CANADA /FI/ 0.04% of their portfolio | 805.1k $36.9m | Added +204.8k |
| Burns Matteson Capital Management, LLC 9.21% of their portfolio | 801.6k $17.1m | Added +67.7k |
| Cartenna Capital, LP 2.95% of their portfolio | 800.0k $36.6m | New |
| JENNISON ASSOCIATES LLC 0.03% of their portfolio | 791.5k $36.2m | Added +551.6k |
| Cullen/Frost Bankers, Inc. 0.51% of their portfolio | 791.1k $36.2m | Added +10.4k |
| RNC CAPITAL MANAGEMENT LLC 1.82% of their portfolio | 778.8k $35.7m | Reduced -6.4k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.07% of their portfolio | 777.8k $35.6m | Reduced -7.2k |
| CACTI ASSET MANAGEMENT LLC 2.76% of their portfolio | 776.6k $35.6m | Reduced -1.5k |
| Randolph Co Inc 4.13% of their portfolio | 771.0k $35.3m | Reduced -4.0k |
| CAPITAL ADVISORS INC/OK 0.69% of their portfolio | 753.2k $34.5m | Added +30.7k |
| CONNING INC. 1.20% of their portfolio | 750.4k $34.4m | Added +14.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.06% of their portfolio | 703.5k $32.2m | Reduced -16.4k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.04% of their portfolio | 679.9k $31.1m | Added +642.1k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.10% of their portfolio | 671.2k $30.7m | Reduced -20.4k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.04% of their portfolio | 665.5k $30.5m | Reduced -22.6k |
| HighTower Advisors, LLC 0.04% of their portfolio | 660.6k $30.2m | Added +13.2k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 645.9k $28.6m | Added +205.1k |
| Cornerstone Capital, Inc. 3.18% of their portfolio | 645.2k $29.5m | Added +103.8k |
| COMERICA BANK 0.12% of their portfolio | 643.2k $29.4m | Reduced -2.8k |
| STOREBRAND ASSET MANAGEMENT AS 0.10% of their portfolio | 640.3k $29.3m | Added +153.0k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.36% of their portfolio | 633.1k $29.0m | Added +19.9k |