GLAUKOS Corp (GKOS) is a publicly traded company in the Unknown sector. Across all available filings, 30 corporate insiders have executed 885 transactions totaling $429.7M, demonstrating a bearish sentiment with -$429.2M in net insider flow. The most recent transaction on Jan 16, 2026 involved a transaction of 186,945 shares valued at $0.
No significant insider buying has been recorded for GKOS in the recent period.
No significant insider selling has been recorded for GKOS in the recent period.
Based on recent SEC filings, insider sentiment for GKOS is bearish with an Insider Alignment Score of 0/100 and a net flow of -$429.2M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
Insider trading at GLAUKOS Corp (GKOS) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 30 insiders are actively trading GKOS stock, having executed 885 transactions in the past 90 days. The most active insider is Thomas William Burns (Executive), who has made 199 transactions totaling $124.3M.
Get notified when executives and directors at GKOS file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Jan 16, 2026 | William Burns Thomas | Executive | Option Exercise | 186,945 | $N/A | $0 | |
| Jan 16, 2026 | William Burns Thomas | Executive | Sale | 186,945 | $115.00 | $21.5M | Large |
| Jan 16, 2026 | William Burns Thomas | Executive | Option Exercise | 186,945 | $16.49 | $3.1M | Large |
| Jan 8, 2026 | William Burns Thomas | Executive | Option Exercise | 88,055 | $N/A | $0 | |
| Jan 8, 2026 | William Burns Thomas | Executive | Sale | 88,055 | $115.00 | $10.1M | Large |
| Jan 8, 2026 | William Burns Thomas | Executive | Option Exercise | 88,055 | $16.49 | $1.5M | Large |
| Jan 2, 2026 | H. Kliman Gilbert | Executive | Award | 623 | $N/A | $0 | |
| Jan 2, 2026 | Torres Denice | Executive | Award | 623 | $N/A | $0 | |
| Jan 2, 2026 | S. Weisner Aimee | Executive | Award | 623 | $N/A | $0 | |
| Jan 2, 2026 | Wen Leana | Executive | Award | 623 | $N/A | $0 | |
| Jan 2, 2026 | F. Hoffmeister David | Executive | Award | 753 | $N/A | $0 | |
| Dec 30, 2025 | William Burns Thomas | Executive | Payment | 1,098 | $114.24 | $125.4K | |
| Dec 30, 2025 | Navratil Tomas | Executive | Payment | 510 | $114.24 | $58.3K | |
| Dec 11, 2025 | Navratil Tomas | Executive | Award | 2,054 | $N/A | $0 | |
| Dec 11, 2025 | William Burns Thomas | Executive | Award | 4,168 | $N/A | $0 |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Sale(S) | 346 | $429.4M | 89.6% |
Exercise(M) | 156 | $34.7M | 7.2% |
Payment(F) | 119 | $12.6M | 2.6% |
Award(A) | 155 | $2.2M | 0.5% |
Purchase(P) | 6 | $277.2K | 0.1% |
Gift(G) | 3 | $0 | 0.0% |
Other(J) | 65 | $0 | 0.0% |
Will Acquisition(W) | 1 | $0 | 0.0% |
Conversion(C) | 34 | $0 | 0.0% |
Insider selling pressure at GLAUKOS Corp has increased, with 30 insiders executing 885 transactions across all time. Total sales of $429.4M significantly outpace purchases of $277.2K, resulting in a net outflow of $429.2M. This selling activity appears largely discretionary, which may warrant closer attention from investors.