Thomas William Burns insider trades: GLAUKOS (GKOS) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Thomas reports to the SEC
Open-market buys and sales
34 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 16, 2026 | GKOS | ↓ Sell | 275,000 | $115.00 | $31.6M | Direct | Jan 20, 2026 (4d) |
| Jan 9, 2024 | GKOS | ↓ Sell | 60,115 | $82.55 | $5.0M | Direct | Jan 10, 2024 (1d) |
| Jan 2, 2024 | GKOS | ↓ Sell | 95,000 | $77.20 | $7.3M | Direct | Jan 3, 2024 (1d) |
| Dec 22, 2023 | GKOS | ↓ Sell | 79,685 | $85.21 | $6.8M | Direct | Dec 22, 2023 (0d) |
| Dec 15, 2023 | GKOS | ↓ Sell | 90,000 | $79.26 | $7.1M | Direct | Dec 18, 2023 (3d) |
| Oct 2, 2023 | GKOS | ↓ Sell | 45,000 | $71.98 | $3.2M | Direct | Oct 4, 2023 (2d) |
| Jul 19, 2023 | GKOS | ↓ Sell | 200 | $80.01 | $16K | Direct | Jul 21, 2023 (2d) |
| Jul 14, 2023 | GKOS | ↓ Sell | 30,000 | $77.95 | $2.3M | Direct | Jul 18, 2023 (4d) |
| Jul 10, 2023 | GKOS | ↓ Sell | 13,573 | $70.86 | $962K | Direct | Jul 11, 2023 (1d) |
| Jul 5, 2023 | GKOS | ↓ Sell | 31,427 | $69.59 | $2.2M | Direct | Jul 6, 2023 (1d) |
| Jun 28, 2023 | GKOS | ↓ Sell | 26,810 | $70.19 | $1.9M | Direct | Jun 30, 2023 (2d) |
| Jun 8, 2023 | GKOS | ↓ Sell | 3,190 | $70.02 | $223K | Direct | Jun 12, 2023 (4d) |
| Jun 7, 2023 | GKOS | ↓ Sell | 25,000 | $66.54 | $1.7M | Direct | Jun 8, 2023 (1d) |
| Jun 2, 2023 | GKOS | ↓ Sell | 142 | $60.00 | $9K | Direct | Jun 5, 2023 (3d) |
| May 23, 2023 | GKOS | ↓ Sell | 8 | $60.03 | $480 | Direct | May 23, 2023 (0d) |
| May 18, 2023 | GKOS | ↓ Sell | 12,282 | $60.17 | $739K | Direct | May 19, 2023 (1d) |
| May 16, 2023 | GKOS | ↓ Sell | 7,568 | $60.02 | $454K | Direct | May 17, 2023 (1d) |
| May 26, 2020 | GKOS | ↓ Sell | 207,447 | $39.23 | $8.1M | Direct | May 27, 2020 (1d) |
| May 20, 2020 | GKOS | ↓ Sell | 400 | $38.05 | $15K | Direct | May 22, 2020 (2d) |
| Aug 7, 2018 | GKOS | ↓ Sell | 150,000 | $38.78 | $5.8M | Through the Burns Family Trust | Aug 8, 2018 (1d) |
| Sep 7, 2017 | GKOS | ↓ Sell | 73,788 | $41.36 | $3.1M | Through the Burns Family Trust | Sep 8, 2017 (1d) |
| Sep 5, 2017 | GKOS | ↓ Sell | 1,212 | $41.25 | $50K | Through the Burns Family Trust | Sep 6, 2017 (1d) |
| Feb 2, 2017 | GKOS | ↓ Sell | 50,000 | $42.58 | $2.1M | Through the Burns Family Trust | Feb 3, 2017 (1d) |
| Jan 9, 2017 | GKOS | ↓ Sell | 40,000 | $37.60 | $1.5M | Through the Burns Family Trust | Jan 11, 2017 (2d) |
| Nov 15, 2016 | GKOS | ↓ Sell | 200,120 | $33.68 | $6.7M | Through the Burns Family Trust | Nov 15, 2016 (0d) |
| Jul 13, 2016 | GKOS | ↓ Sell | 162,254 | $30.07 | $4.9M | Through the Burns Family Trust | Jul 13, 2016 (0d) |
| Jul 1, 2016 | GKOS | ↓ Sell | 50,000 | $29.12 | $1.5M | Through the Burns Family Trust | Jul 5, 2016 (4d) |
| Jun 20, 2016 | GKOS | ↓ Sell | 7,997 | $30.00 | $240K | Through the Burns Family Trust | Jun 21, 2016 (1d) |
| Jun 6, 2016 | GKOS | ↓ Sell | 24,578 | $25.16 | $618K | Through the Burns Family Trust | Jun 6, 2016 (0d) |
| Jun 3, 2016 | GKOS | ↓ Sell | 422 | $25.00 | $11K | Through the Burns Family Trust | Jun 3, 2016 (0d) |
| Jun 1, 2016 | GKOS | ↓ Sell | 25,000 | $23.90 | $598K | Through the Burns Family Trust | Jun 2, 2016 (1d) |
| May 25, 2016 | GKOS | ↓ Sell | 300 | $25.00 | $8K | Through the Burns Family Trust | May 26, 2016 (1d) |
| May 4, 2016 | GKOS | ↓ Sell | 36,700 | $24.67 | $905K | Through the Burns Family Trust | May 5, 2016 (1d) |
| Dec 31, 2015 | GKOS | ↑ Buy | 1,388 | $15.30 | $21K | Direct | Jan 4, 2016 (4d) |
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 Thomas William Burns's insider trades
Thomas William Burns is Chairman & CEO at GLAUKOS (GKOS). Since Dec 31, 2015, Thomas has reported 1 open-market purchase worth $21K and 33 sales worth $107.7M on SEC Form 4. In the last 12 months: 1 sale ($31.6M).
Their filings also include shares withheld for taxes (45 filings), option exercises (31 filings), grants and awards (29 filings), gifts (3 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.