Stefan Becker insider trades: Corning (GLW) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Stefan reports to the SEC
Open-market buys and sales
6 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 8, 2026 | GLW | ↓ Sell | 21,000 | $188.08 | $3.9M | Direct | May 8, 2026 (0d) |
| Oct 29, 2025 | GLW | ↓ Sell | 12,100 | $91.28 | $1.1M | Direct | Oct 30, 2025 (1d) |
| May 29, 2025 | GLW | ↓ Sell | 17,106 | $49.68 | $850K | Direct | May 29, 2025 (0d) |
| Oct 30, 2024 | GLW | ↓ Sell | 24,077 | $48.63 | $1.2M | Direct | Nov 1, 2024 (2d) |
| Aug 14, 2024 | GLW | ↓ Sell | 17,983 | $39.51 | $711K | Direct | Aug 15, 2024 (1d) |
| Apr 29, 2021 | GLW | ↓ Sell | 12,966 | $44.98 | $583K | Direct | Apr 30, 2021 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other GLW insiders
Open-market trades in the last 12 months
About Stefan Becker's insider trades
Stefan Becker is SVP, Finance & Corp Controller at Corning (GLW). Since Apr 29, 2021, Stefan has reported no open-market purchases and 6 sales worth $8.4M on SEC Form 4. In the last 12 months: 1 sale ($3.9M).
Their filings also include option exercises (15 filings), shares withheld for taxes (13 filings), grants and awards (12 filings), gifts (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every GLW insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.