SEC CIK 1825618
Zhang John Z
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| GLWview stock → | 5,138 | 2026-05-11 |
Position History — GLW
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — GLW
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-05-11 | Open-market sale | 10,000 | $198.34 | 5,138 |
| 2026-05-06 | Open-market sale | 15,000 | $184.67 | 15,138 |
| 2026-04-15 | Option exercise (derivative) | 18,884 | $0.00 | 0 |
| 2026-04-15 | Option exercise (derivative) | 42,687 | $0.00 | 0 |
| 2026-04-15 | Tax withholding | 31,433 | $168.27 | 30,138 |
| 2026-04-15 | Option exercise | 18,884 | $0.00 | 61,571 |
| 2026-04-15 | Option exercise | 42,687 | $0.00 | 42,687 |
| 2026-04-01 | Grant / award (derivative) | 9,692 | $0.00 | 9,692 |
| 2026-02-12 | Open-market sale | 1,531 | $133.75 | 0 |
| 2026-02-09 | Option exercise (derivative) | 2,476 | $0.00 | 0 |
| 2026-02-09 | Option exercise | 2,476 | $0.00 | 2,476 |
| 2026-02-09 | Tax withholding | 945 | $131.39 | 1,531 |
| 2026-02-04 | Grant / award (derivative) | 15,591 | $0.00 | 35,839 |
| 2026-02-04 | Grant / award (derivative) | 20,932 | $0.00 | 42,687 |
| 2026-02-04 | Grant / award (derivative) | 16,891 | $0.00 | 16,891 |
| 2025-08-12 | Open-market sale | 1,212 | $65.53 | 0 |
| 2025-08-08 | Option exercise (derivative) | 2,476 | $0.00 | 2,476 |
| 2025-08-08 | Tax withholding | 1,264 | $65.77 | 1,212 |
| 2025-08-08 | Option exercise | 2,476 | $0.00 | 2,476 |
| 2025-05-28 | Open-market sale | 9,610 | $49.29 | 0 |
| 2025-05-12 | Open-market sale | 8,000 | $46.91 | 9,610 |
| 2025-04-15 | Option exercise (derivative) | 14,439 | $0.00 | 0 |
| 2025-04-15 | Option exercise (derivative) | 21,539 | $0.00 | 0 |
| 2025-04-15 | Option exercise | 14,439 | $0.00 | 35,978 |
| 2025-04-15 | Option exercise | 21,539 | $0.00 | 21,539 |
| 2025-04-15 | Tax withholding | 18,368 | $41.78 | 17,610 |
| 2025-04-01 | Grant / award (derivative) | 24,374 | $0.00 | 24,374 |
| 2025-02-18 | Option exercise (derivative) | 12,529 | $0.00 | 0 |
| 2025-02-18 | Option exercise | 12,529 | $33.92 | 14,111 |
| 2025-02-18 | Open-market sale | 14,111 | $52.78 | 0 |
| 2025-02-10 | Option exercise (derivative) | 2,475 | $0.00 | 4,952 |
| 2025-02-10 | Tax withholding | 893 | $53.05 | 1,582 |
| 2025-02-10 | Option exercise | 2,475 | $0.00 | 2,475 |
| 2025-02-04 | Grant / award (derivative) | 20,248 | $0.00 | 20,248 |
| 2025-02-04 | Grant / award (derivative) | 14,717 | $0.00 | 21,539 |
| 2025-02-04 | Grant / award (derivative) | 16,996 | $0.00 | 21,755 |
| 2024-11-13 | Option exercise (derivative) | 5,175 | $0.00 | 0 |
| 2024-11-13 | Option exercise | 5,175 | $19.65 | 5,175 |
| 2024-11-13 | Open-market sale | 5,175 | $48.36 | 0 |
| 2024-08-13 | Open-market sale | 12,918 | $39.73 | 0 |
| 2024-08-08 | Option exercise (derivative) | 2,475 | $0.00 | 7,427 |
| 2024-08-08 | Option exercise (derivative) | 721 | $0.00 | 0 |
| 2024-08-08 | Tax withholding | 1,633 | $38.61 | 12,918 |
| 2024-08-08 | Option exercise | 721 | $0.00 | 14,551 |
| 2024-08-08 | Option exercise | 2,475 | $0.00 | 13,830 |
| 2024-05-02 | Open-market sale | 12,546 | $33.42 | 11,355 |
| 2024-04-15 | Option exercise (derivative) | 9,548 | $0.00 | 0 |
| 2024-04-15 | Option exercise (derivative) | 13,652 | $0.00 | 0 |
| 2024-04-15 | Tax withholding | 11,845 | $31.29 | 23,901 |
| 2024-04-15 | Option exercise | 13,652 | $0.00 | 35,746 |
| 2024-04-15 | Option exercise | 9,548 | $0.00 | 22,094 |
| 2024-04-01 | Grant / award (derivative) | 22,498 | $0.00 | 22,498 |
| 2024-02-15 | Open-market sale | 6,607 | $32.02 | 12,546 |
| 2024-02-08 | Option exercise (derivative) | 4,951 | $0.00 | 9,902 |
| 2024-02-08 | Option exercise (derivative) | 1,440 | $0.00 | 721 |
| 2024-02-08 | Option exercise | 1,440 | $0.00 | 21,615 |
| 2024-02-08 | Tax withholding | 2,462 | $31.73 | 19,153 |
| 2024-02-08 | Option exercise | 4,951 | $0.00 | 20,175 |
| 2024-02-07 | Grant / award (derivative) | 4,029 | $0.00 | 13,652 |
| 2024-02-07 | Grant / award (derivative) | 3,638 | $0.00 | 6,822 |
| 2024-02-07 | Grant / award (derivative) | 4,759 | $0.00 | 4,759 |
| 2023-05-15 | Option exercise (derivative) | 690 | $0.00 | 0 |
| 2023-05-15 | Option exercise | 4,784 | $0.00 | 17,330 |
| 2023-05-15 | Option exercise | 690 | $0.00 | 18,020 |
| 2023-05-15 | Tax withholding | 2,796 | $31.20 | 15,224 |
| 2023-05-05 | Open-market sale | 15,000 | $31.45 | 12,546 |
| 2023-04-14 | Option exercise (derivative) | 17,268 | $0.00 | 0 |
| 2023-04-14 | Option exercise (derivative) | 38,466 | $0.00 | 0 |
| 2023-04-14 | Option exercise | 38,466 | $0.00 | 38,466 |
| 2023-04-14 | Tax withholding | 28,188 | $34.78 | 27,546 |
| 2023-04-14 | Option exercise | 17,268 | $0.00 | 55,734 |
| 2023-04-03 | Grant / award (derivative) | 18,884 | $0.00 | 18,884 |
| 2023-02-16 | Open-market sale | 5,744 | $35.52 | 0 |
| 2023-02-08 | Grant / award (derivative) | 2,105 | $0.00 | 9,623 |
| 2023-02-08 | Grant / award (derivative) | 2,161 | $0.00 | 2,161 |
| 2023-02-08 | Grant / award (derivative) | 14,853 | $0.00 | 14,853 |
| 2023-02-08 | Grant / award (derivative) | 10,802 | $0.00 | 38,466 |
| 2023-02-08 | Grant / award (derivative) | 3,184 | $0.00 | 3,184 |
| 2023-02-03 | Open-market sale | 4,655 | $36.00 | 5,744 |
| 2022-05-16 | Option exercise (derivative) | 4,784 | $0.00 | 4,784 |
| 2022-05-16 | Option exercise (derivative) | 690 | $0.00 | 690 |
| 2022-05-16 | Option exercise | 4,784 | $0.00 | 12,505 |
| 2022-05-16 | Option exercise | 690 | $0.00 | 13,195 |
| 2022-05-16 | Tax withholding | 2,796 | $35.20 | 10,399 |
| 2022-04-18 | Option exercise (derivative) | 6,265 | $0.00 | 0 |
| 2022-04-18 | Tax withholding | 3,199 | $33.87 | 7,721 |
| 2022-04-18 | Option exercise | 6,265 | $0.00 | 10,920 |
| 2022-04-01 | Grant / award (derivative) | 14,439 | $0.00 | 14,439 |
| 2022-02-04 | Option exercise (derivative) | 13,320 | $0.00 | 0 |
| 2022-02-04 | Open-market sale | 13,320 | $42.01 | 4,655 |
| 2022-02-04 | Option exercise | 13,320 | $27.03 | 17,975 |
| 2022-02-02 | Grant / award (derivative) | 7,518 | $0.00 | 7,518 |
| 2022-02-02 | Grant / award (derivative) | 13,599 | $0.00 | 27,664 |
| 2021-05-17 | Option exercise (derivative) | 690 | $0.00 | 1,380 |
| 2021-05-17 | Option exercise (derivative) | 4,784 | $0.00 | 9,568 |
| 2021-05-17 | Option exercise | 4,784 | $0.00 | 6,646 |
| 2021-05-17 | Option exercise | 690 | $0.00 | 7,336 |
| 2021-05-17 | Tax withholding | 2,681 | $44.19 | 4,655 |
| 2021-05-03 | Option exercise (derivative) | 5,175 | $0.00 | 5,175 |
| 2021-05-03 | Option exercise (derivative) | 11,668 | $0.00 | 0 |
| 2021-05-03 | Option exercise | 5,175 | $19.65 | 21,275 |
| 2021-05-03 | Option exercise | 11,668 | $27.00 | 16,100 |
| 2021-05-03 | Open-market sale | 16,843 | $44.62 | 4,432 |
| 2021-05-03 | Open-market sale | 2,570 | $44.60 | 1,862 |
| 2021-04-15 | Option exercise (derivative) | 7,399 | — | 0 |
| 2021-04-15 | Option exercise | 7,399 | $0.00 | 7,399 |
| 2021-04-15 | Tax withholding | 2,967 | $45.90 | 4,432 |
| 2021-04-01 | Grant / award (derivative) | 9,548 | $0.00 | 9,548 |
| 2021-03-01 | Option exercise (derivative) | 4,189 | $0.00 | 0 |
| 2021-03-01 | Option exercise | 3,031 | $22.68 | 3,031 |
| 2021-03-01 | Option exercise | 4,189 | $20.89 | 7,220 |
| 2021-03-01 | Option exercise | 4,189 | $20.89 | 11,409 |
| 2021-03-01 | Open-market sale | 11,409 | $39.23 | 0 |
| 2021-02-03 | Grant / award (derivative) | 14,065 | $0.00 | 14,065 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.