John Z Zhang
CIK 1825618 · Exec. Vice President & CCDO · last filed 2026-05-12
John Z Zhang is an Exec. Vice President & CCDO who has filed 41 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing shows the insider sold $2.0M of GLW on May 12, 2026. Across all open-market trades the lifetime net is −$10.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $920.7K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$920.7K
1
41
-$10.74M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GLW | Exec. Vice President & CCDO | 5,138 | $179.20 | $920.7K | -$10.74M | 41 | 2026-05-12 |
Recent Filings
41 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-12 | GLW | Sell (S) | −10,000 | -$1.98M | EDGAR |
| 2026-05-06 | GLW | Sell (S) | −15,000 | -$2.77M | EDGAR |
| 2026-04-16 | GLW | Mixed | +30,138 | -$5.29M | EDGAR |
| 2026-04-02 | GLW | Grant (A) | — | $0 | EDGAR |
| 2026-02-12 | GLW | Sell (S) | −1,531 | -$204.8K | EDGAR |
| 2026-02-11 | GLW | Mixed | +1,531 | -$124.2K | EDGAR |
| 2026-02-06 | GLW | Grant (A) | — | $0 | EDGAR |
| 2025-08-12 | GLW | Mixed | — | -$162.6K | EDGAR |
| 2025-05-29 | GLW | Sell (S) | −9,610 | -$473.7K | EDGAR |
| 2025-05-13 | GLW | Sell (S) | −8,000 | -$375.3K | EDGAR |