Corning Inc. (GLW)CEO sold ~$21.4M

~$21.4M

Approx. value · 138K sh @ $155.37

751K

Holds after · shares reported

Traded

Feb 26, 2026

Filed

Feb 28, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jan 28, 2026Company filing · Form 8-K · ResultsReported its results
2. Jan 29, 2026Insider · 2 peopleInsiders: 2 sales (~$2.2M)
3. Feb 2, 2026Insider · 2 peopleInsiders: 2 sales (~$3.3M)
4. Feb 4, 2026Insider · Their largest sale since 2020Officer sold ~$1.11M of GLW shares in the open market
5. Feb 9, 2026Insider · 3 peopleInsiders: 3 sales (~$6.6M)
6. Feb 10, 2026InsiderChair sold ~$2M of GLW shares in the open market
7. Feb 11, 2026InsiderOfficer sold ~$204K of GLW shares in the open market
8. Feb 12, 2026Insider · 2 peopleInsiders: 2 sales (~$211K)
9. Feb 13, 2026InsiderOfficer sold ~$77K of GLW shares in the open market
10. Feb 26, 2026 · this disclosureInsider · Their largest sale since 2006CEO sold ~$21.4M of GLW shares in the open market

What came next

1. Mar 19, 2026Congress · 1 personMembers of Congress: 2 purchases
2. Mar 25, 2026CongressDisclosed purchase of GLW — reported range $1,001 - $15,000
3. Mar 26, 20265% stakeThe Vanguard Group reported a passive stake (13G)
4. Apr 28, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
5. Apr 29, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 6.8%
6. May 6, 2026Company filing · Form 8-K · Unregistered shares, Reg FDSold new shares without registering them, and shared information with investors
7. May 6, 2026Insider · Their largest sale since 2021Officer sold ~$2.77M of GLW shares in the open market
8. May 7, 2026Insider · Their largest sale since 2016CFO sold ~$4.2M of GLW shares in the open market
9. May 8, 2026Insider · 3 peopleInsiders: 3 sales (~$10.4M)
10. May 11, 2026Insider · 3 peopleInsiders: 3 sales (~$6.8M)
11. May 13, 2026InsiderOfficer sold ~$2.08M of GLW shares in the open market
12. May 15, 2026Insider · Their largest sale since 2021Officer sold ~$3.92M of GLW shares in the open market
13. May 22, 2026InsiderOfficer sold ~$5.26M of GLW shares in the open market
14. Jun 9, 2026InsiderCEO sold ~$18.6M of GLW shares in the open market

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Corning Inc.

For Corning Inc., OQRO holds 3 insider filings (SEC Form 4 or Form 144), 6 Congress trade reports and 65 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its GLW page.

Other recent filings by Wendell P Weeks, Chairman, CEO and President

• SEC Form 4 at Corning Inc. (GLW)Jun 10, 2026
• SEC Form 4 at Corning Inc. (GLW)Aug 8, 2025
• SEC Form 4 at Corning Inc. (GLW)Mar 3, 2025
• SEC Form 4 at Corning Inc. (GLW)Mar 3, 2025
• SEC Form 4 at Corning Inc. (GLW)Nov 1, 2024

The full history of Wendell P Weeks, Chairman, CEO and President is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Corning Inc.

• House Clerk periodic transaction reportOct 7, 2026
• House Clerk periodic transaction reportOct 7, 2026
• House Clerk periodic transaction reportOct 7, 2026
• House Clerk periodic transaction reportOct 7, 2026
• House Clerk periodic transaction reportOct 7, 2026
• SEC Form 4Sep 9, 2026

Everything OQRO holds on this company is on its GLW page.