# GLAUKOS Corp (GKOS) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/gkos

> 32 non-derivative transactions: 0 purchases, 23 sales ($22.7M). CIK 1192448.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-25 | Navratil Tomas | Officer | S | 167.0 | 151.7 | 72266.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000030/0001920053-26-000030-index.htm |
| 2026-09-25 | Navratil Tomas | Officer | S | 136.0 | 152.71 | 72130.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000030/0001920053-26-000030-index.htm |
| 2026-09-25 | Navratil Tomas | Officer | S | 229.0 | 154.24 | 71901.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000030/0001920053-26-000030-index.htm |
| 2026-09-25 | Navratil Tomas | Officer | S | 1083.0 | 154.88 | 70818.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000030/0001920053-26-000030-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 103.0 | 163.2 | 73787.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 345.0 | 164.6 | 73442.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 191.0 | 166.2 | 73251.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 4.0 | 172.0 | 72433.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 120.0 | 168.38 | 72671.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 234.0 | 170.95 | 72437.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-09-16 | Navratil Tomas | Officer | S | 460.0 | 167.32 | 72791.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000028/0001920053-26-000028-index.htm |
| 2026-08-28 | Navratil Tomas | Officer | S | 6091.0 | 181.19 | 73900.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000026/0001920053-26-000026-index.htm |
| 2026-08-28 | Navratil Tomas | Officer | S | 10.0 | 182.5 | 73890.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000026/0001920053-26-000026-index.htm |
| 2026-08-28 | Navratil Tomas | Officer | S | 7643.0 | 180.25 | 79991.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000026/0001920053-26-000026-index.htm |
| 2026-08-19 | Kliman Gilbert H | Director | M | 2500.0 | 25.77 | 39906.0 | https://www.sec.gov/Archives/edgar/data/1192448/000129317126000012/0001293171-26-000012-index.htm |
| 2026-08-19 | Kliman Gilbert H | Director | S | 2500.0 | 190.0 | 37406.0 | https://www.sec.gov/Archives/edgar/data/1192448/000129317126000012/0001293171-26-000012-index.htm |
| 2026-08-11 | Gilliam Joseph E | Officer | S | 32037.0 | 180.49 | 72588.0 | https://www.sec.gov/Archives/edgar/data/1192448/000170585026000022/0001705850-26-000022-index.htm |
| 2026-08-11 | Gilliam Joseph E | Officer | M | 10000.0 | 48.46 | 82588.0 | https://www.sec.gov/Archives/edgar/data/1192448/000170585026000022/0001705850-26-000022-index.htm |
| 2026-08-11 | Gilliam Joseph E | Officer | M | 20000.0 | 55.18 | 102588.0 | https://www.sec.gov/Archives/edgar/data/1192448/000170585026000022/0001705850-26-000022-index.htm |
| 2026-08-11 | Gilliam Joseph E | Officer | S | 27963.0 | 178.89 | 104625.0 | https://www.sec.gov/Archives/edgar/data/1192448/000170585026000022/0001705850-26-000022-index.htm |
| 2026-08-11 | Gilliam Joseph E | Officer | M | 20000.0 | 55.18 | 122588.0 | https://www.sec.gov/Archives/edgar/data/1192448/000170585026000022/0001705850-26-000022-index.htm |
| 2026-08-11 | Gilliam Joseph E | Officer | M | 10000.0 | 48.46 | 132588.0 | https://www.sec.gov/Archives/edgar/data/1192448/000170585026000022/0001705850-26-000022-index.htm |
| 2026-08-07 | Thurman Alex R. | Officer | S | 20000.0 | 180.13 | 43906.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000018/0001920061-26-000018-index.htm |
| 2026-08-07 | Thurman Alex R. | Officer | M | 20000.0 | 33.81 | 63906.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000018/0001920061-26-000018-index.htm |
| 2026-07-31 | WEN LEANA | Director | S | 525.0 | 167.63 | 21092.0 | https://www.sec.gov/Archives/edgar/data/1192448/000184759826000010/0001847598-26-000010-index.htm |
| 2026-07-16 | Thurman Alex R. | Officer | M | 10000.0 | 38.68 | 53906.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000016/0001920061-26-000016-index.htm |
| 2026-07-16 | Thurman Alex R. | Officer | S | 10000.0 | 160.0 | 43906.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000016/0001920061-26-000016-index.htm |
| 2026-07-09 | Thurman Alex R. | Officer | S | 10000.0 | 155.0 | 43681.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000014/0001920061-26-000014-index.htm |
| 2026-07-09 | Thurman Alex R. | Officer | M | 10000.0 | 38.68 | 53681.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000014/0001920061-26-000014-index.htm |
| 2026-07-06 | Thurman Alex R. | Officer | S | 10000.0 | 150.0 | 43681.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000012/0001920061-26-000012-index.htm |
| 2026-07-06 | Thurman Alex R. | Officer | M | 10000.0 | 38.68 | 53681.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192006126000012/0001920061-26-000012-index.htm |
| 2026-07-01 | Navratil Tomas | Officer | S | 716.0 | 139.06 | 87634.0 | https://www.sec.gov/Archives/edgar/data/1192448/000192005326000024/0001920053-26-000024-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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