Alex R. Thurman insider trades: GLAUKOS (GKOS) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Alex reports to the SEC
Open-market buys and sales
18 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 7, 2026 | GKOS | ↓ Sell | 20,000 | $180.13 | $3.6M | Direct | Aug 11, 2026 (4d) |
| Jul 16, 2026 | GKOS | ↓ Sell | 10,000 | $160.00 | $1.6M | Direct | Jul 21, 2026 (5d) |
| Jul 9, 2026 | GKOS | ↓ Sell | 10,000 | $155.00 | $1.6M | Direct | Jul 13, 2026 (4d) |
| Jul 6, 2026 | GKOS | ↓ Sell | 10,000 | $150.00 | $1.5M | Direct | Jul 8, 2026 (2d) |
| Apr 30, 2026 | GKOS | ↓ Sell | 10,000 | $140.00 | $1.4M | Direct | May 4, 2026 (4d) |
| Mar 17, 2026 | GKOS | ↓ Sell | 625 | $99.15 | $62K | Direct | Mar 19, 2026 (2d) |
| Nov 25, 2025 | GKOS | ↓ Sell | 315 | $105.00 | $33K | Direct | Nov 26, 2025 (1d) |
| Mar 25, 2025 | GKOS | ↓ Sell | 1,520 | $106.84 | $162K | Direct | Mar 27, 2025 (2d) |
| May 10, 2024 | GKOS | ↓ Sell | 353 | $110.51 | $39K | Direct | May 14, 2024 (4d) |
| May 6, 2024 | GKOS | ↓ Sell | 90 | $110.26 | $10K | Direct | May 8, 2024 (2d) |
| May 2, 2024 | GKOS | ↓ Sell | 442 | $105.69 | $47K | Direct | May 6, 2024 (4d) |
| Apr 8, 2024 | GKOS | ↓ Sell | 1,634 | $99.91 | $163K | Direct | Apr 9, 2024 (1d) |
| Apr 4, 2024 | GKOS | ↓ Sell | 750 | $95.03 | $71K | Direct | Apr 5, 2024 (1d) |
| Apr 2, 2024 | GKOS | ↓ Sell | 474 | $90.37 | $43K | Direct | Apr 3, 2024 (1d) |
| Feb 8, 2024 | GKOS | ↓ Sell | 583 | $95.74 | $56K | Direct | Feb 9, 2024 (1d) |
| Jan 18, 2024 | GKOS | ↓ Sell | 583 | $90.54 | $53K | Direct | Jan 22, 2024 (4d) |
| Dec 21, 2023 | GKOS | ↓ Sell | 583 | $85.14 | $50K | Direct | Dec 22, 2023 (1d) |
| Dec 15, 2023 | GKOS | ↓ Sell | 1,270 | $79.80 | $101K | Direct | Dec 18, 2023 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other GKOS insiders
Open-market trades in the last 12 months
About Alex R. Thurman's insider trades
Alex R. Thurman is SVP & Chief Financial Officer at GLAUKOS (GKOS). Since Dec 15, 2023, Alex has reported no open-market purchases and 18 sales worth $10.5M on SEC Form 4. In the last 12 months: 7 sales ($9.7M).
Their filings also include shares withheld for taxes (13 filings), grants and awards (9 filings), option exercises (5 filings). 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 GKOS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.