Tomas Navratil Sells $10.6M of Glaukos Corp (GKOS) — SEC Form 4, Nov 04, 2026
Open-Market Net Sale · SEC Form 4
−$10,618,980
Equity position changed by -45.7%
Equity Position
37.3K sh
68,795 → 37,328
Equity Change
-45.7%
shares held after vs before
Filing Lag
3 business days
late vs 2-day SEC deadline
Form 4 · Statement of Changes in Beneficial Ownership
Reporting Owner
| Name | Relationship |
|---|---|
| Tomas Navratil CIK 0001920053 |
Officer
|
Tomas Navratil at Glaukos Corp
Full insider history
Bought (12 mo)
—
Sold (12 mo)
$14,493,241
More from this insider at Glaukos Corp
| 2026-11-04 | - | — | View |
| 2026-10-07 | Sell | -$251,120 | View |
| 2026-09-28 | Sell | -$249,158 | View |
| 2026-09-18 | Sell | -$243,204 | View |
| 2026-09-01 | Sell | -$2,483,104 | View |
Non-Derivative Securities Transactions
| Title | Date | Type | Shares | Price | Net Total | Post-Txn | Ownership |
|---|---|---|---|---|---|---|---|
| Common StockF1 | 2026-10-30 | M - Exercise | 4,181 A | $55.00 | +$229,955 | 72,976 | Direct |
| Common StockF2 | 2026-10-30 | M - Exercise | 8,788 A | $85.94 | +$755,241 | 81,764 | Direct |
| Common StockF3F2 | 2026-10-30 | S - Sale | 10,221 D | $237.54 | -$2,427,896 | 71,543 | Direct |
| Common StockF4F2 | 2026-10-30 | S - Sale | 12,836 D | $238.56 | -$3,062,156 | 58,707 | Direct |
| Common StockF5F2 | 2026-10-30 | S - Sale | 14,943 D | $239.64 | -$3,580,941 | 43,764 | Direct |
| Common StockF6F2 | 2026-10-30 | S - Sale | 6,436 D | $240.52 | -$1,547,987 | 37,328 | Direct |
Derivative Securities Transactions
Footnotes (7)
- F1
- Includes 37,328 restricted stock units that have not yet vested or been delivered to the Reporting Person. Additionally, the amount reported has been adjusted by 259 shares to correct a clerical error. Show more
- F2
- Includes 37,328 restricted stock units that have not yet vested or been delivered to the Reporting Person. Show more
- F3
- This transaction was executed in multiple trades at prices ranging from $237.09 to $238.07. 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. Show more
- F4
- This transaction was executed in multiple trades at prices ranging from $238.11 to $239.11. 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 Show more
- F5
- This transaction was executed in multiple trades at prices ranging from $239.13 to $240.03. 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 Show more
- F6
- This transaction was executed in multiple trades at prices ranging from $240.17 to $240.87. 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 Show more
- F7
- These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years. Show more
Related filings at Glaukos Corp
Institutional Holders
13F holders · Jun 30, 2026
369
institutional managers reporting a position
Largest by reported value
- Black Rock, Inc. $1.33B
- Jupiter Topco Llc $680M
- Vanguard Portfolio Management Llc $464M
5%+ Holders · 13D/G
5 filers
Other insiders at Glaukos Corp
-
Gilbert H Kliman -$475K
-
Joseph E Gilliam -$10.8M
-
Alex R. Thurman -$3.6M
-
Leana Wen -$88K
GET /v1/forms/4/0001193125-26-445949
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