Form 4 for GKOS GLAUKOS Corp
Accepted 2026-01-26 00:00:00 ET · period of report 2026-01-22 · accession 0001705850-26-000004 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-01-26 | 2026-01-22 | GKOS | Gilliam Joseph E | Pres, COO | S - Sale+OE | $127.68 | -10.5K | 95.6K | -10% | -$1.34M |
| D | 2026-01-26 | 2026-01-22 | GKOS | Gilliam Joseph E | Pres, COO | M - OptEx | $55.18 | +10.5K | 102.9K | +11% | +$579.3K |
| DM | 2026-01-26 | 2026-01-22 | GKOS | Gilliam Joseph E | Pres, COO | M - OptEx | $55.18 | -10.5K | 55.0K | -16% | -$579.3K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-01-22 | S | D | 2,406 | $126.10 | 100,458 | D | — | — | (F3) This transaction was executed in multiple trades at prices ranging from $125.56 to $126.55. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. (F1) Includes 62,605 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 2 | Common | Common Stock | 2026-01-22 | S | D | 3,194 | $129.28 | 92,366 | D | — | — | (F6) This transaction was executed in multiple trades at prices ranging from $128.98 to $129.81. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. (F1) Includes 62,605 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 3 | Common | Common Stock | 2026-01-22 | S | D | 3,100 | $127.03 | 97,358 | D | — | — | (F4) This transaction was executed in multiple trades at prices ranging from $126.62 to $127.58. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. (F1) Includes 62,605 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 4 | Common | Common Stock | 2026-01-22 | S | D | 1,798 | $128.07 | 95,560 | D | — | — | (F5) This transaction was executed in multiple trades at prices ranging from $127.83 to $128.77. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. (F1) Includes 62,605 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 5 | Common | Common Stock | 2026-01-22 | M | A | 10,498 | $55.18 | 102,864 | D | — | — | (F1) Includes 62,605 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 6 | Derivative | Stock Option (Right to Buy) | 2026-01-22 | M | D | 3,100 | $55.18 | 30,713 | D | $55.18 · — to 2032-03-24 | 3,100 Common Stock | (F9) Represents a portion of an option to purchase shares of common stock previously granted by the Issuer to the Reporting Person on March 24, 2022 in connection with his promotion to President and Chief Operating Officer, the vesting of which was subject to the Issuer's achievement of certain multi-year performance goals. |
| 7 | Derivative | Stock Option (Right to Buy) | 2026-01-22 | M | D | 7,398 | $55.18 | 55,013 | D | $55.18 · — to 2032-03-24 | 7,398 Common Stock | (F8) Represents a portion of an option to purchase shares of common stock previously granted by the Issuer on March 24, 2022, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. |