Form 4 for GKOS GLAUKOS Corp
Accepted 2026-01-20 00:00:00 ET · period of report 2026-01-08 · accession 0001644557-26-000002 · 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 | 2026-01-20 | 2026-01-08+ | GKOS | Burns Thomas William | COB, CEO, Dir | S - Sale+OE | $115.00 | -275.0K | 153.8K | -64% | -$31.62M |
| DM | 2026-01-20 | 2026-01-08+ | GKOS | Burns Thomas William | COB, CEO, Dir | M - OptEx | $16.49 | +275.0K | 241.8K | New | +$4.53M |
| DM | 2026-01-20 | 2026-01-08+ | GKOS | Burns Thomas William | COB, CEO, Dir | M - OptEx | $0.00 | -275.0K | 0 | -100% | $0 |
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 | 2026-01-08 | S | D | 88,055 | $115.00 | 153,775 | D | — | — | (F1) Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 2 | Common | Common Stock | 2026-01-16 | M | A | 186,945 | $16.49 | 340,720 | D | — | — | (F1) Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 3 | Common | Common Stock | 2026-01-16 | S | D | 186,945 | $115.00 | 153,775 | D | — | — | (F1) Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 4 | Common | Common Stock | 2026-01-08 | M | A | 88,055 | $16.49 | 241,830 | D | — | — | (F1) Includes 89,621 restricted stock units that have not yet vested or been delivered to the Reporting Person. |
| 5 | Derivative | Stock Option (Right to Buy) | 2026-01-08 | M | D | 88,055 | $0.00 | 186,945 | D | $16.49 · — to 2026-03-10 | 88,055 Common Stock | (F4) This option was granted on March 10, 2016 and had a four-year vesting schedule in which 25% vested on the first anniversary of the grant date and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vested in full on the four-year anniversary of the grant date. |
| 6 | Derivative | Stock Option (Right to Buy) | 2026-01-16 | M | D | 186,945 | $0.00 | 0 | D | $16.49 · — to 2026-03-10 | 186,945 Common Stock | (F4) This option was granted on March 10, 2016 and had a four-year vesting schedule in which 25% vested on the first anniversary of the grant date and the remainder vested in equal monthly installments for 36 months thereafter, such that the stock option vested in full on the four-year anniversary of the grant date. |