Quick Takeaways
- GLW - CORNING INC /NY has 43 insiders with reported activity on this page.
- Net insider value flow over the last year: -$105,277,601.
- Recent transaction rows are available for direct filing-level review.
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Net insider flow leans to selling over the last 12 months. Net value: -$105,277,601.
$0
Shares: 0
Insiders: 0
$105,277,601
Shares: 951,183
Insiders: 15
-$105,277,601
Shares: -951,183
Insiders: -15
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 292,401 | $0 | $51,508,238 | -$51,508,238 |
| 3-6 | 0 | 168,916 | $0 | $19,210,916 | -$19,210,916 |
| 6-9 | 0 | 193,856 | $0 | $16,861,448 | -$16,861,448 |
| 9-12 | 0 | 296,010 | $0 | $17,696,998 | -$17,696,998 |
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Wendell P. Weeks | Chairman, CEO and President, Director | $127,329,340 | -$26,717,772 | -17% | Median | 15 Apr 2026 |
| Robert F. Cummings Jr. | Director | $30,267,629 | Mixed | 31 Mar 2026 | ||
| Jaymin Amin | SVP and Chief Tech. Officer | $15,837,804 | -$1,367,698 | -7.9% | Median | 15 Apr 2026 |
| Avery H. Nelson III | Executive Vice President & COO | $14,249,863 | -$7,191,479 | -34% | Mixed | 15 May 2026 |
| Edward A. Schlesinger | Exec. Vice President and CFO | $12,144,064 | -$9,410,606 | -44% | Filing P/S | 07 May 2026 |
| Ronald L. Verkleeren | SVP Emerging Innovations Group | $10,002,709 | -$5,076,694 | -34% | Filing P/S | 13 May 2026 |
| Stephanie Burns | Director | $8,443,401 | Mixed | 31 Mar 2026 | ||
| Deborah Rieman | Director | $7,896,387 | Mixed | 12 Feb 2025 | ||
| Lawrence D. McRae | Retired Vice Chairman | $7,430,968 | Mixed | 15 Apr 2024 | ||
| Michelle L. Gullo | Senior Vice President & CHRO | $7,114,295 | -$1,092,134 | -13% | Filing P/S | 08 May 2026 |
| Hansel E. Tookes II | Retired Director | $6,880,260 | Mixed | 07 Feb 2025 | ||
| Mark S. Wrighton | Retired Director | $6,490,768 | Mixed | 04 Sep 2025 | ||
| Daniel P. Huttenlocher | Director | $6,053,400 | Mixed | 11 Feb 2026 | ||
| Lewis A. Steverson | Vice Chairman, EVP and CLAO | $5,519,407 | -$10,538,088 | -66% | Filing P/S | 08 May 2026 |
| Clark Richard T. | Retired Director | $5,388,631 | Mixed | 01 Nov 2024 | ||
| Kevin J. Martin | Director | $5,366,652 | Mixed | 31 Mar 2026 | ||
| Michael Paul O'Day | SVP and GM, Optical Comm. | $5,319,418 | -$1,486,144 | -22% | Median | 28 Apr 2026 |
| Soumya Seetharam | Senior Vice President & CDIO | $5,273,359 | -$6,667,931 | -56% | Filing P/S | 11 May 2026 |
| Donald W. Blair | Retired Director | $5,121,194 | Mixed | 01 Nov 2024 | ||
| Leslie A. Brun | Director | $4,009,246 | Mixed | 11 Feb 2026 | ||
| Deborah A. Henretta | Director | $3,411,255 | Mixed | 30 Jun 2025 | ||
| Kurt M. Landgraf | Director | $3,315,206 | Mixed | 07 Feb 2024 | ||
| James P. Clappin | Retired Vice Chair &Strat. Adv | $3,280,595 | Mixed | 07 Jan 2022 | ||
| Michaune D. Tillman | SVP and General Counsel | $3,138,044 | -$674,870 | -18% | Mixed | 11 May 2026 |
| Martin J. Curran | Retired Executive VP | $2,880,363 | Mixed | 02 Jan 2025 | ||
| R. Tony Tripeny | Retired Exec. Vice President | $2,871,967 | Mixed | 02 May 2022 | ||
| Roger W. Ferguson Jr. | Director | $2,756,611 | Mixed | 31 Mar 2026 | ||
| David L. Morse | Exec. VP & Chief Tech. Officer | $2,454,864 | Mixed | 16 May 2022 | ||
| Pamela J. Craig | Director | $2,421,161 | Mixed | 11 Feb 2026 | ||
| Eric S. Musser | Retired President | $2,407,847 | -$18,696,799 | -89% | Mixed | 09 Feb 2026 |
| Clark S. Kinlin | Retired Exec. Vice President | $1,815,135 | Mixed | 07 Sep 2021 | ||
| Jordana Daryl Kammerud | Svp | $1,668,215 | -$3,830,019 | -70% | Median | 15 Apr 2026 |
| Cheryl C. Capps | Retired SVP | $1,515,696 | Mixed | 07 Feb 2024 | ||
| Li Fang | SVP, Corning Intl & NBD, Solar | $1,392,596 | -$1,112,077 | -44% | Mixed | 14 May 2026 |
| Jeffrey W. Evenson | Retired Exec. VP | $1,299,491 | Mixed | 04 Feb 2025 | ||
| John P. Bayne Jr. | Retired Senior Vice President | $1,193,681 | Mixed | 25 Nov 2024 | ||
| Robert P. France | Retired Sr VP, Human Resources | $1,121,813 | Mixed | 01 May 2023 | ||
| John Z. Zhang | Exec. Vice President & CCDO | $1,019,062 | -$5,511,236 | -84% | Filing P/S | 11 May 2026 |
| Stefan Becker | SVP, Finance & Corp Controller | $970,417 | -$5,904,053 | -86% | Median | 13 May 2026 |
| Thomas D. French | Director | $808,535 | Mixed | 11 Feb 2026 | ||
| Anne Mullins | Retired Senior Vice President | $58,471 | Mixed | 15 May 2023 | ||
| Ami Badani | Director | $0 | Mixed | 11 Feb 2026 | ||
| Michael Alan Bell | Retired Sr VP & GM, Opt Comm. | $0 | Mixed | 30 Apr 2025 |
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
7.8%
|
66,710,492
|
$9,070,625,659 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
|
Vanguard Capital Management · Company |
6.8%
|
58,226,346
|
$7,917,036,266 | $0 | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
4.2%
|
36,263,357
|
$4,930,728,651 | — | 31 Mar 2026 | |
| Samsung Display Co., Ltd. |
13D/G
|
— |
7.9%
|
68,000,000
|
$4,350,640,000 | -$191,940,000 | 20 Aug 2025 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
3.3%
|
28,271,740
|
$3,844,108,488 | — | 31 Mar 2026 | |
| FMR LLC |
13F
|
Company |
2.9%
|
24,909,423
|
$3,386,934,219 | — | 31 Mar 2026 | |
| Capital Research Global Investors |
13F
|
Company |
2.5%
|
21,847,495
|
$2,970,561,498 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.4%
|
20,964,679
|
$2,842,931,110 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
1.8%
|
15,666,934
|
$2,130,233,412 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.7%
|
14,499,109
|
$1,971,443,896 | — | 31 Mar 2026 | |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO |
13F
|
Company |
1.6%
|
13,423,216
|
$1,825,154,680 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.4%
|
11,871,322
|
$1,526,058,835 | — | 31 Mar 2026 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
1%
|
8,727,680
|
$1,186,702,649 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1%
|
8,698,937
|
$1,182,794,466 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.93%
|
7,972,197
|
$1,083,979,605 | — | 31 Mar 2026 | |
| WCM INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.94%
|
8,106,869
|
$1,042,138,010 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.88%
|
7,555,433
|
$1,027,314,000 | — | 31 Mar 2026 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.81%
|
6,948,080
|
$957,046,302 | — | 31 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.72%
|
6,178,182
|
$840,047,409 | — | 31 Mar 2026 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.64%
|
5,532,094
|
$752,198,822 | — | 31 Mar 2026 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.58%
|
5,017,721
|
$682,259,523 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.58%
|
5,006,978
|
$680,798,799 | — | 31 Mar 2026 | |
| Legal & General Group Plc |
13F
|
Company |
0.57%
|
4,886,436
|
$664,408,699 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.51%
|
4,388,369
|
$596,686,533 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.51%
|
4,380,405
|
$595,603,668 | — | 31 Mar 2026 | |
| Invesco Ltd. |
13F
|
Company |
0.51%
|
4,364,980
|
$593,506,297 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.49%
|
4,244,624
|
$576,910,733 | — | 31 Mar 2026 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
|
Company |
0.48%
|
4,134,772
|
$562,204,949 | — | 31 Mar 2026 | |
| Amundi |
13F
|
Individual |
0.46%
|
3,958,324
|
$538,213,316 | — | 31 Mar 2026 | |
| LONDON CO OF VIRGINIA |
13F
|
Company |
0.44%
|
3,795,637
|
$516,095,576 | — | 31 Mar 2026 | |
| LONE PINE CAPITAL LLC |
13F
|
Company |
0.43%
|
3,718,147
|
$505,556,448 | — | 31 Mar 2026 | |
| Mariner, LLC |
13F
|
Company |
0.41%
|
3,562,752
|
$484,252,947 | — | 31 Mar 2026 | |
| Polar Capital Holdings Plc |
13F
|
Company |
0.39%
|
3,333,777
|
$453,293,659 | — | 31 Mar 2026 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.35%
|
3,008,544
|
$409,071,728 | — | 31 Mar 2026 | |
| Anther Capital Ltd |
13F
|
Company |
0.35%
|
3,002,986
|
$408,316,006 | — | 31 Mar 2026 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.35%
|
2,967,752
|
$403,525,239 | — | 31 Mar 2026 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.32%
|
2,741,635
|
$372,779,000 | — | 31 Mar 2026 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
0.31%
|
2,672,986
|
$363,450,900 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.3%
|
2,615,772
|
$350,849,062 | — | 31 Mar 2026 | |
| Aspex Management (HK) Ltd |
13F
|
Company |
0.3%
|
2,544,734
|
$346,007,000 | — | 31 Mar 2026 | |
| BARCLAYS PLC |
13F
|
Company |
0.29%
|
2,482,173
|
$337,501,062 | — | 31 Mar 2026 | |
| Swiss National Bank |
13F
|
Company |
0.28%
|
2,390,400
|
$325,022,688 | — | 31 Mar 2026 | |
| Assenagon Asset Management S.A. |
13F
|
Company |
0.28%
|
2,377,902
|
$323,323,335 | — | 31 Mar 2026 | |
| AGF MANAGEMENT LTD |
13F
|
Company |
0.27%
|
2,349,146
|
$319,413,382 | — | 31 Mar 2026 | |
| Whale Rock Capital Management LLC |
13F
|
Company |
0.27%
|
2,297,424
|
$312,380,741 | — | 31 Mar 2026 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
0.26%
|
2,278,291
|
$309,988,350 | — | 31 Mar 2026 | |
| Nuveen, LLC |
13F
|
Company |
0.26%
|
2,219,531
|
$301,789,630 | — | 31 Mar 2026 | |
| National Pension Service |
13F
|
Company |
0.25%
|
2,193,110
|
$298,197,167 | — | 31 Mar 2026 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.25%
|
2,160,748
|
$293,796,906 | — | 31 Mar 2026 | |
| Evergreen Quality Fund GP, Ltd. |
13F
|
Company |
0.23%
|
2,009,597
|
$273,244,904 | — | 31 Mar 2026 |
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Avery H. Nelson III | GLW | Common Stock | Sale | -22.2% | $3,918,600 | $195.93 | -20,000 | 70,059 | 15 May 2026 | Direct |
| Li Fang | GLW | Common Stock | Options Exercise | 8,725 | 8,725 | 14 May 2026 | Direct | |||
| Li Fang | GLW | Stock Appreciation Rights (SAR) | Options Exercise | -100% | -8,725 | 0 | 14 May 2026 | Direct | ||
| Ronald L. Verkleeren | GLW | Common Stock | Sale | -17.2% | $2,077,708 | $207.77 | -10,000 | 48,143 | 13 May 2026 | Direct |
| Stefan Becker | GLW | Common Stock | Gift | -1.73% | -126 | 7,137 | 13 May 2026 | Direct | ||
| Michaune D. Tillman | GLW | Common Stock | Sale | -24.3% | $674,870 | $207.02 | -3,260 | 10,174 | 11 May 2026 | Direct |
| Soumya Seetharam | GLW | Common Stock | Sale | -43.9% | $4,124,646 | $206.23 | -20,000 | 25,570 | 11 May 2026 | Direct |
| John Z. Zhang | GLW | Common Stock | Sale | -66.1% | $1,983,383 | $198.34 | -10,000 | 5,138 | 11 May 2026 | Direct |
| Lewis A. Steverson | GLW | Common Stock | Sale | -49.6% | $5,440,593 | $196.06 | -27,750 | 28,152 | 08 May 2026 | Direct |
| Michelle L. Gullo | GLW | Common Stock | Sale | -12.4% | $1,004,689 | $189.03 | -5,315 | 37,636 | 08 May 2026 | Direct |
| Stefan Becker | GLW | Common Stock | Sale | -74.3% | $3,949,680 | $188.08 | -21,000 | 7,263 | 08 May 2026 | Direct |
| Edward A. Schlesinger | GLW | Common Stock | Sale | -25.7% | $4,198,247 | $186.08 | -22,562 | 65,264 | 07 May 2026 | Direct |
| John Z. Zhang | GLW | Common Stock | Sale | -49.8% | $2,769,984 | $184.67 | -15,000 | 15,138 | 06 May 2026 | Direct |
| Michaune D. Tillman | GLW | Common Stock | Tax liability | -18% | -2,946 | 13,434 | 04 May 2026 | Direct | ||
| Stefan Becker | GLW | Common Stock | Tax liability | -9% | -2,795 | 28,263 | 29 Apr 2026 | Direct | ||
| Stefan Becker | GLW | Common Stock | Options Exercise | 9.89% | 2,795 | 31,058 | 29 Apr 2026 | Direct | ||
| Stefan Becker | GLW | Performance Share Unit | Options Exercise | -14.4% | -1,502 | 8,930 | 29 Apr 2026 | Direct | ||
| Stefan Becker | GLW | Restricted Stock Unit | Options Exercise | -9.12% | -1,293 | 12,886 | 29 Apr 2026 | Direct | ||
| Michael Paul O'Day | GLW | Common Stock | Tax liability | -8.2% | -3,496 | 39,122 | 28 Apr 2026 | Direct | ||
| Wendell P. Weeks | GLW | Common Stock | Tax liability | -15.4% | -165,622 | 908,353 | 15 Apr 2026 | Direct | ||
| Wendell P. Weeks | GLW | Common Stock | Options Exercise | 46.3% | 340,084 | 1,073,975 | 15 Apr 2026 | Direct | ||
| Wendell P. Weeks | GLW | Restricted Stock Unit | Options Exercise | -100% | -104,474 | 0 | 15 Apr 2026 | Direct | ||
| Wendell P. Weeks | GLW | Performance Share Unit | Options Exercise | -100% | -235,610 | 0 | 15 Apr 2026 | Direct | ||
| John Z. Zhang | GLW | Common Stock | Tax liability | -51% | -31,433 | 30,138 | 15 Apr 2026 | Direct | ||
| John Z. Zhang | GLW | Common Stock | Options Exercise | 61,571 | 61,571 | 15 Apr 2026 | Direct | |||
| John Z. Zhang | GLW | Restricted Stock Unit | Options Exercise | -100% | -18,884 | 0 | 15 Apr 2026 | Direct | ||
| John Z. Zhang | GLW | Performance Share Unit | Options Exercise | -100% | -42,687 | 0 | 15 Apr 2026 | Direct | ||
| Ronald L. Verkleeren | GLW | Common Stock | Tax liability | -28.2% | -22,843 | 58,143 | 15 Apr 2026 | Direct | ||
| Ronald L. Verkleeren | GLW | Common Stock | Options Exercise | 137.6% | 46,903 | 80,986 | 15 Apr 2026 | Direct | ||
| Ronald L. Verkleeren | GLW | Restricted Stock Unit | Options Exercise | -100% | -14,332 | 0 | 15 Apr 2026 | Direct | ||
| Ronald L. Verkleeren | GLW | Performance Share Unit | Options Exercise | -100% | -32,571 | 0 | 15 Apr 2026 | Direct | ||
| Lewis A. Steverson | GLW | Common Stock | Tax liability | -47.1% | -49,786 | 55,902 | 15 Apr 2026 | Direct | ||
| Lewis A. Steverson | GLW | Common Stock | Options Exercise | 2953.7% | 102,227 | 105,688 | 15 Apr 2026 | Direct | ||
| Lewis A. Steverson | GLW | Restricted Stock Unit | Options Exercise | -100% | -31,109 | 0 | 15 Apr 2026 | Direct | ||
| Lewis A. Steverson | GLW | Performance Share Unit | Options Exercise | -100% | -71,118 | 0 | 15 Apr 2026 | Direct | ||
| Soumya Seetharam | GLW | Common Stock | Tax liability | -27.9% | -17,622 | 45,570 | 15 Apr 2026 | Direct | ||
| Soumya Seetharam | GLW | Common Stock | Options Exercise | 243.2% | 44,780 | 63,192 | 15 Apr 2026 | Direct | ||
| Soumya Seetharam | GLW | Restricted Stock Unit | Options Exercise | -100% | -13,734 | 0 | 15 Apr 2026 | Direct | ||
| Soumya Seetharam | GLW | Performance Share Unit | Options Exercise | -100% | -31,046 | 0 | 15 Apr 2026 | Direct | ||
| Edward A. Schlesinger | GLW | Common Stock | Tax liability | -25.9% | -30,715 | 87,826 | 15 Apr 2026 | Direct | ||
| Edward A. Schlesinger | GLW | Common Stock | Options Exercise | 113.7% | 63,069 | 118,541 | 15 Apr 2026 | Direct | ||
| Edward A. Schlesinger | GLW | Performance Share Unit | Options Exercise | -100% | -43,981 | 0 | 15 Apr 2026 | Direct | ||
| Edward A. Schlesinger | GLW | Restricted Stock Unit | Options Exercise | -100% | -19,088 | 0 | 15 Apr 2026 | Direct | ||
| Michael Paul O'Day | GLW | Common Stock | Tax liability | -16.5% | -8,410 | 42,618 | 15 Apr 2026 | Direct | ||
| Michael Paul O'Day | GLW | Common Stock | Options Exercise | 66.3% | 20,336 | 51,028 | 15 Apr 2026 | Direct | ||
| Michael Paul O'Day | GLW | Restricted Stock Unit | Options Exercise | -100% | -6,244 | 0 | 15 Apr 2026 | Direct | ||
| Michael Paul O'Day | GLW | Performance Share Unit | Options Exercise | -100% | -14,092 | 0 | 15 Apr 2026 | Direct | ||
| Avery H. Nelson III | GLW | Common Stock | Tax liability | -24.2% | -28,740 | 90,059 | 15 Apr 2026 | Direct | ||
| Avery H. Nelson III | GLW | Common Stock | Options Exercise | 98.7% | 59,011 | 118,799 | 15 Apr 2026 | Direct | ||
| Avery H. Nelson III | GLW | Restricted Stock Unit | Options Exercise | -100% | -17,838 | 0 | 15 Apr 2026 | Direct |