GLAUKOS Corp (GKOS) insider trading
Every open-market stock purchase and sale by GLAUKOS Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Joseph E Gilliam (COO) and 4 others sold $18.2M in the last 90 days.
- Last insider buy: Joseph E Gilliam (CFO), $50.1K, 8 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $69.3M (31 sales). Last close $176.85 on Oct 21, 2026.
Recent GKOS insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 5, 2026 | Tomas Navratil (C-suite exec) | Sold | $146K |
| Oct 5, 2026 | Tomas Navratil (C-suite exec) | Sold | $53.9K |
| Oct 5, 2026 | Tomas Navratil (C-suite exec) | Sold | $51.7K |
| Sep 25, 2026 | Tomas Navratil (C-suite exec) | Sold | $168K |
| Sep 25, 2026 | Tomas Navratil (C-suite exec) | Sold | $35.3K |
| Sep 25, 2026 | Tomas Navratil (C-suite exec) | Sold | $25.3K |
| Sep 25, 2026 | Tomas Navratil (C-suite exec) | Sold | $20.8K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $77K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $56.8K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $40K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $31.7K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $20.2K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $16.8K |
| Sep 16, 2026 | Tomas Navratil (C-suite exec) | Sold | $688 |
| Aug 28, 2026 | Tomas Navratil (C-suite exec) | Sold | $1.4M |
| Aug 28, 2026 | Tomas Navratil (C-suite exec) | Sold | $1.1M |
| Aug 28, 2026 | Tomas Navratil (C-suite exec) | Sold | $1.8K |
| Aug 19, 2026 | Gilbert H Kliman (Insider) | Sold | $475K |
| Aug 19, 2026 | Gilbert H Kliman (Insider) | Bought (not open market) | — |
| Aug 11, 2026 | Joseph E Gilliam (COO) | Sold | $5.8M |
| Aug 11, 2026 | Joseph E Gilliam (COO) | Sold | $5M |
| Aug 11, 2026 | Joseph E Gilliam (COO) | Bought (not open market) | — |
| Aug 11, 2026 | Joseph E Gilliam (COO) | Bought (not open market) | — |
| Aug 7, 2026 | Alex R. Thurman (CFO) | Sold | $3.6M |
| Aug 7, 2026 | Alex R. Thurman (CFO) | Bought (not open market) | — |
Who's trading GKOS
- Tomas Navratil, C-suite exec: sold $3.9M (26 sales), last Oct 5, 2026
- Gilbert H Kliman, Insider: sold $2.4M (4 sales), last Aug 19, 2026
- Joseph E Gilliam, COO: sold $17.2M (9 sales), last Aug 11, 2026
- Alex R. Thurman, CFO: sold $10.2M (9 sales), last Aug 7, 2026
- Leana Wen, Insider: sold $332K (2 sales), last Jul 31, 2026
- Thomas William Burns, CEO: sold $31.6M (2 sales), last Jun 25, 2026
- David F Hoffmeister, Insider: other filings, last May 28, 2026
- Marc Stapley, Insider: sold $1.9M (5 sales), last May 28, 2026
- Mark J Foley, Insider: other filings, last May 28, 2026
- Denice Torres, Insider: other filings, last May 28, 2026
- Aimee S Weisner, Insider: sold $1.8M (4 sales), last May 28, 2026
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