Zhang John Z insider trades
Zhang John Z has filed 35 Form 4s with the SEC that we hold, all for Corning INC /NY (GLW), as Exec. Vice President & CCDO. Across all of them we count 0 purchases worth $0 and 15 sales worth $9.4M reported on Form 4. In the last 12 months: 0 purchases ($0) and 3 sales ($5.0M). The largest single trade was a sale of 15,000 shares of Corning INC /NY worth $2.8M, dated 2026-05-06. The first filing on our record is dated 2022-02-04 and the latest 2026-05-12.
Corning INC /NY (GLW)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-02-04 | S, sale reported on Form 4 | 13,320 | $559.6K | 2022-02-04 |
| 2023-02-03 | S, sale reported on Form 4 | 4,655 | $167.6K | 2023-02-06 |
| 2023-02-16 | S, sale reported on Form 4 | 5,744 | $204.0K | 2023-02-17 |
| 2023-05-05 | S, sale reported on Form 4 | 15,000 | $471.8K | 2023-05-09 |
| 2024-02-15 | S, sale reported on Form 4 | 6,607 | $211.6K | 2024-02-16 |
| 2024-05-02 | S, sale reported on Form 4 | 12,546 | $419.3K | 2024-05-02 |
| 2024-08-13 | S, sale reported on Form 4 | 12,918 | $513.2K | 2024-08-15 |
| 2024-11-13 | S, sale reported on Form 4 | 5,175 | $250.3K | 2024-11-14 |
| 2025-02-18 | S, sale reported on Form 4 | 14,111 | $744.8K | 2025-02-19 |
| 2025-05-12 | S, sale reported on Form 4 | 8,000 | $375.3K | 2025-05-13 |
| 2025-05-28 | S, sale reported on Form 4 | 9,610 | $473.7K | 2025-05-29 |
| 2025-08-12 | S, sale reported on Form 4 | 1,212 | $79.4K | 2025-08-12 |
| 2026-02-12 | S, sale reported on Form 4 | 1,531 | $204.8K | 2026-02-12 |
| 2026-05-06 | S, sale reported on Form 4 | 15,000 | $2.8M | 2026-05-06 |
| 2026-05-11 | S, sale reported on Form 4 | 10,000 | $2.0M | 2026-05-12 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1825618) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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