Tomas Navratil, Chief Development Officer at Glaukos Corp ($GKOS), made five open market sales of company shares over the past year, totaling nearly $500,000. His latest sale occurred on September 22, 2025. With no purchases recorded, his activity ranks 6,463rd among 11,678 insiders, trailing the average sale value of $8.6 million across 6.4 transactions per seller.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 5798 | $109.60 | 95,440.0000 | 57,190,000 | 5.73% | 0.01% |
| March 25, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 11693 | $0.00 | 84,772.0000 | 57,190,000 | 16.00% | 0.02% |
| March 25, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 3692 | $0.00 | 88,464.0000 | 57,190,000 | 4.36% | 0.01% |
| March 25, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 12774 | $0.00 | 101,238.0000 | 57,190,000 | 14.44% | 0.02% |
| March 25, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 4622 | $0.00 | 73,079.0000 | 57,190,000 | 6.75% | 0.01% |
| March 24, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 2546 | $105.23 | 68,457.0000 | 57,190,000 | 3.59% | 0.00% |
| March 23, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 2628 | $106.84 | 71,003.0000 | 57,190,000 | 3.57% | 0.00% |
| March 16, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 460 | $97.33 | 74,202.0000 | 57,190,000 | 0.62% | 0.00% |
| March 16, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 958 | $98.94 | 74,662.0000 | 57,190,000 | 1.27% | 0.00% |
| March 16, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 272 | $99.05 | 73,631.0000 | 57,190,000 | 0.37% | 0.00% |
| March 16, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 299 | $98.21 | 73,903.0000 | 57,190,000 | 0.40% | 0.00% |
| March 13, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 1074 | $97.02 | 75,620.0000 | 57,190,000 | 1.40% | 0.00% |
| March 5, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 361 | $112.10 | 76,694.0000 | 57,190,000 | 0.47% | 0.00% |
| Feb. 24, 2026 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 396 | $119.17 | 77,055.0000 | 57,190,000 | 0.51% | 0.00% |
| Dec. 30, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 510 | $114.24 | 77,451.0000 | 57,398,000 | 0.65% | 0.00% |
| Dec. 11, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 2054 | $0.00 | 77,961.0000 | 57,398,000 | 2.71% | 0.00% |
| Sept. 22, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 276 | $84.70 | 76,390.0000 | 57,205,000 | 0.36% | 0.00% |
| Sept. 22, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 23 | $82.79 | 76,884.0000 | 57,205,000 | 0.03% | 0.00% |
| Sept. 23, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 483 | $84.69 | 75,907.0000 | 57,205,000 | 0.63% | 0.00% |
| Sept. 22, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 218 | $83.76 | 76,666.0000 | 57,205,000 | 0.28% | 0.00% |
| Sept. 19, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 510 | $83.47 | 76,907.0000 | 57,205,000 | 0.66% | 0.00% |
| Sept. 18, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 1948 | $0.00 | 77,417.0000 | 57,205,000 | 2.58% | 0.00% |
| Sept. 11, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 3194 | $87.98 | 77,417.0000 | 57,205,000 | 3.96% | 0.01% |
| Sept. 11, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 1948 | $88.61 | 75,469.0000 | 57,205,000 | 2.52% | 0.00% |
| May 27, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 483 | $96.97 | 80,611.0000 | 56,637,000 | 0.60% | 0.00% |
| May 7, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 510 | $88.24 | 81,094.0000 | 56,637,000 | 0.62% | 0.00% |
| March 31, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 510 | $98.42 | 82,088.0000 | 52,755,000 | 0.62% | 0.00% |
| April 1, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 484 | $97.09 | 81,604.0000 | 56,637,000 | 0.59% | 0.00% |
| March 25, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 1830 | $96.60 | 82,598.0000 | 52,755,000 | 2.17% | 0.00% |
| March 25, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 5112 | $107.61 | 84,428.0000 | 52,755,000 | 5.71% | 0.01% |
| March 13, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 1948 | $0.00 | 74,385.0000 | 52,755,000 | 2.69% | 0.00% |
| March 13, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 3691 | $0.00 | 78,076.0000 | 52,755,000 | 4.96% | 0.01% |
| March 13, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 12422 | $0.00 | 90,498.0000 | 52,755,000 | 15.91% | 0.02% |
| March 17, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 958 | $102.19 | 89,540.0000 | 52,755,000 | 1.06% | 0.00% |
| Feb. 14, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | S | Common Stock | 3416 | $147.14 | 72,437.0000 | 52,755,000 | 4.50% | 0.01% |
| Jan. 6, 2025 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 1185 | $149.68 | 75,853.0000 | 52,755,000 | 1.54% | 0.00% |
| Dec. 31, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 255 | $151.16 | 77,038.0000 | 55,037,000 | 0.33% | 0.00% |
| Dec. 20, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 509 | $145.14 | 75,723.0000 | 55,037,000 | 0.67% | 0.00% |
| Dec. 20, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 484 | $138.93 | 75,239.0000 | 55,037,000 | 0.64% | 0.00% |
| Dec. 30, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 2054 | $0.00 | 77,293.0000 | 55,037,000 | 2.73% | 0.00% |
| Oct. 15, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 510 | $130.07 | 76,232.0000 | 55,037,000 | 0.66% | 0.00% |
| Sept. 19, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 4108 | $0.00 | 76,742.0000 | 50,715,000 | 5.66% | 0.01% |
| Aug. 6, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 520 | $120.73 | 72,634.0000 | 50,715,000 | 0.71% | 0.00% |
| June 24, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 260 | $93.57 | 73,414.0000 | 49,580,000 | 0.35% | 0.00% |
| June 24, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 260 | $92.69 | 73,154.0000 | 49,580,000 | 0.35% | 0.00% |
| April 1, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 494 | $93.10 | 73,674.0000 | 49,580,000 | 0.67% | 0.00% |
| March 28, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 2418 | $88.08 | 76,771.0000 | 48,433,000 | 3.05% | 0.00% |
| March 28, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 2603 | $88.72 | 74,168.0000 | 48,433,000 | 3.39% | 0.01% |
| March 25, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 459 | $87.16 | 79,189.0000 | 48,433,000 | 0.58% | 0.00% |
| March 14, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 11075 | $0.00 | 79,648.0000 | 48,433,000 | 16.15% | 0.02% |
| March 14, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 1950 | $0.00 | 67,546.0000 | 48,433,000 | 2.97% | 0.00% |
| March 14, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | A | Common Stock | 1027 | $0.00 | 68,573.0000 | 48,433,000 | 1.52% | 0.00% |
| Jan. 12, 2024 | GLAUKOS Corp | $GKOS | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | F | Common Stock | 1209 | $77.08 | 65,596.0000 | 48,433,000 | 1.81% | 0.00% |