GLW (Corning Incorporated)
Insider Trading Activity
Every open-market purchase and sale reported by GLW officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | Michelle L Gullo | Senior Vice President & CHRO | Sell | — | — |
| 2026-08-31 | LEWIS A STEVERSON | Vice Chairman, EVP and CLAO | Sell | — | — |
| 2026-07-01 | Roger W. Ferguson Jr. | Director | A | — | — |
| 2026-07-01 | Kevin J Martin | Director | A | — | — |
| 2026-07-01 | STEPHANIE BURNS | Director | A | — | — |
| 2026-07-01 | ROBERT F CUMMINGS JR | Director | A | — | — |
| 2026-06-23 | Michelle L Gullo | Senior Vice President & CHRO | F | — | — |
| 2026-06-09 | WENDELL P WEEKS | Chairman, CEO and President | MIXED | — | — |
| 2026-05-26 | Jaymin Amin | SVP and Chief Tech. Officer | MIXED | — | — |
| 2026-05-18 | Avery H Nelson III | Executive Vice President & COO | Sell | — | — |
| 2026-05-15 | Li Fang | SVP, Corning Intl & NBD, Solar | M | — | — |
| 2026-05-14 | Stefan Becker | SVP, Finance & Corp Controller | G | — | — |
| 2026-05-14 | Ronald L Verkleeren | SVP Emerging Innovations Group | Sell | — | — |
| 2026-05-12 | John Z Zhang | Exec. Vice President & CCDO | Sell | — | — |
| 2026-05-12 | Soumya Seetharam | Senior Vice President & CDIO | Sell | — | — |
| 2026-05-12 | MICHAUNE D TILLMAN | SVP and General Counsel | Sell | — | — |
| 2026-05-08 | Stefan Becker | SVP, Finance & Corp Controller | Sell | — | — |
| 2026-05-08 | Michelle L Gullo | Senior Vice President & CHRO | Sell | — | — |
| 2026-05-08 | LEWIS A STEVERSON | Vice Chairman, EVP and CLAO | Sell | — | — |
| 2026-05-07 | Edward A Schlesinger | Exec. Vice President and CFO | Sell | — | — |
| 2026-05-06 | John Z Zhang | Exec. Vice President & CCDO | Sell | — | — |
| 2026-05-05 | MICHAUNE D TILLMAN | SVP and General Counsel | F | — | — |
| 2026-05-01 | Stefan Becker | SVP, Finance & Corp Controller | MIXED | — | — |
| 2026-04-29 | Michael Paul O'Day | SVP and GM, Optical Comm. | F | — | — |
| 2026-04-16 | Jaymin Amin | SVP and Chief Tech. Officer | MIXED | — | — |
| 2026-04-16 | Stefan Becker | SVP, Finance & Corp Controller | MIXED | — | — |
| 2026-04-16 | Michelle L Gullo | Senior Vice President & CHRO | MIXED | — | — |
| 2026-04-16 | Jordana Daryl Kammerud | SVP | MIXED | — | — |
| 2026-04-16 | Avery H Nelson III | Executive Vice President & COO | MIXED | — | — |
| 2026-04-16 | Michael Paul O'Day | SVP and GM, Optical Comm. | MIXED | — | — |
| 2026-04-16 | Edward A Schlesinger | Exec. Vice President and CFO | MIXED | — | — |
| 2026-04-16 | Soumya Seetharam | Senior Vice President & CDIO | MIXED | — | — |
| 2026-04-16 | LEWIS A STEVERSON | Vice Chairman, EVP and CLAO | MIXED | — | — |
| 2026-04-16 | Ronald L Verkleeren | SVP Emerging Innovations Group | MIXED | — | — |
| 2026-04-16 | John Z Zhang | Exec. Vice President & CCDO | MIXED | — | — |
| 2026-04-16 | WENDELL P WEEKS | Chairman, CEO and President | MIXED | — | — |
| 2026-04-02 | Jaymin Amin | SVP and Chief Tech. Officer | A | — | — |
| 2026-04-02 | Stefan Becker | SVP, Finance & Corp Controller | A | — | — |
| 2026-04-02 | LEWIS A STEVERSON | Vice Chairman, EVP and CLAO | A | — | — |
| 2026-04-02 | Michelle L Gullo | Senior Vice President & CHRO | A | — | — |
| 2026-04-02 | Avery H Nelson III | Executive Vice President & COO | A | — | — |
| 2026-04-02 | Michael Paul O'Day | SVP and GM, Optical Comm. | A | — | — |
| 2026-04-02 | Edward A Schlesinger | Exec. Vice President and CFO | A | — | — |
| 2026-04-02 | Soumya Seetharam | Senior Vice President & CDIO | A | — | — |
| 2026-04-02 | MICHAUNE D TILLMAN | SVP and General Counsel | A | — | — |
| 2026-04-02 | Ronald L Verkleeren | SVP Emerging Innovations Group | A | — | — |
| 2026-04-02 | John Z Zhang | Exec. Vice President & CCDO | A | — | — |
| 2026-04-02 | WENDELL P WEEKS | Chairman, CEO and President | A | — | — |
| 2026-04-01 | STEPHANIE BURNS | Director | A | — | — |
| 2026-04-01 | ROBERT F CUMMINGS JR | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 115,000,000 | — |
| — | Director | 1,948,689 | — |
| — | Chairman, CEO and President | 1,020,115 | — |
| — | VICE CHAIRMAN | 279,274 | — |
| — | Director | 255,619 | — |
| — | Vice Chairman & Corp. Dev. Off | 233,150 | — |
| — | Pres. & CEO - CCS Holdings | 226,117 | — |
| — | Exec. VP & Chief Admin.Officer | 178,629 | — |
| — | — | 167,500 | — |
| — | Senior Vice President | 159,647 | — |
| — | EXECUTIVE VICE PRESIDENT | 156,471 | — |
| — | Director | 151,659 | — |
| — | Director | 140,473 | — |
| — | Director | 140,365 | — |
| — | Director | 137,095 | — |
| — | Executive Vice President | 131,707 | — |
| — | Director | 118,022 | — |
| — | SVP | 112,992 | — |
| — | Director | 100,813 | — |
| — | Senior VP & Treasurer | 97,813 | — |
| — | EXECUTIVE VICE PRESIDENT | 97,637 | — |
| — | SVP and Chief Tech. Officer | 97,002 | — |
| — | Director | 94,891 | — |
| — | Executive Vice President | 94,847 | — |
| — | Vice Chair & Strategic Advisor | 87,666 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the GLW quote page; the site-wide leaderboard is on the insider transactions hub.