Thurman Alex R. 4
4 · GLAUKOS Corp · Filed Mar 27, 2026
Research Summary
AI-generated summary of this filing
Glaukos (GKOS) CFO Alex Thurman Sells Shares, Receives Awards
What Happened
Alex R. Thurman, Chief Financial Officer of Glaukos Corp (GKOS), sold 2,511 shares in an open‑market sale on March 25, 2026 at $106.46 per share for proceeds of $267,321. On the same date he was reported as acquiring/being granted a mix of stock awards and option-related interests: a 3,303-share award (no cash paid) and several derivative awards (8,228; 19,601; and 20,515 shares) tied to previously granted restricted stock units and stock options that were deemed earned after the company met certain operational targets.
Key Details
- Transaction date reported: March 25, 2026; Form 4 filed March 27, 2026 (appears timely; Form 4s are typically due within two business days).
- Sale: 2,511 shares at $106.46 → $267,321; footnote F1: sale executed under a Rule 10b5‑1 trading plan adopted Dec 15, 2025.
- Awards/acquisitions reported as zero cash: 3,303 shares (immediate award) and derivative entries of 8,228; 19,601; and 20,515 shares tied to prior grants.
- Vesting/vesting timing: Certain RSUs/options were earned after the Compensation, Nominating and Governance Committee determined pre‑set operational targets were met on March 25, 2026 (see F3, F5, F7). For at least one RSU award, 50% vests/delivers in March 2026 and 50% in December 2026 (F3). For portions of options, 50% vests in March 2026 and 50% in December 2026 (F6). A new option granted March 25, 2026 has a standard four‑year vesting schedule (25% after 1 year, then monthly over 36 months) (F8).
- Unvested units: filing notes certain amounts of restricted stock units remain unvested/not yet delivered (e.g., 5,230 RSUs per F2 and 8,533 RSUs per F4).
- Shares owned after transaction: not specified in the provided summary of the filing.
Context
- The sale was executed under a pre‑arranged 10b5‑1 plan (F1), which is commonly used by insiders to systematically sell shares and is not necessarily a market signal.
- Several of the reported acquisitions are derivative/earned portions of earlier performance‑based RSU and option grants; those awards became earned when the company met pre‑determined operational targets, triggering vesting schedules rather than an immediate open‑market purchase.
- No indication in the filing that shares were sold immediately upon vesting (i.e., not reported as a cashless exercise); the only open‑market sale disclosed here is the 2,511 shares under the 10b5‑1 plan.
Insider Transaction Report
Form 4
GLAUKOS CorpGKOS
Thurman Alex R.
SVP & CHIEF FINANCIAL OFFICER
Transactions
- Sale
Common Stock
[F1][F2]2026-03-25$106.46/sh−2,511$267,321→ 41,967 total - Award
Common Stock
[F3][F4]2026-03-25+3,303→ 45,270 total - Award
Stock Option (Right to Buy)
[F5][F6]2026-03-25+8,228→ 45,738 totalExercise: $55.18Exp: 2032-03-24→ Common Stock (8,228 underlying) - Award
Stock Option (Right to Buy)
[F7]2025-03-25+19,601→ 19,601 totalExercise: $48.46From: 2026-03-25Exp: 2036-03-25→ Common Stock (19,601 underlying) - Award
Stock Option (Right to Buy)
[F8]2026-03-25+20,515→ 20,515 totalExercise: $109.60Exp: 2036-03-25→ Common Stock (20,515 underlying)
Footnotes (8)
- [F1]The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 15, 2025.
- [F2]Includes 5,230 restricted stock units that have not yet vested or been delivered to the Reporting Person.
- [F3]Represents shares of common stock underlying a portion of an award of restricted stock units previously granted by the Issuer on March 14, 2024, the earning and vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares reported herein consists of the portion of the award that was deemed earned based upon the achievement of the operational target. 50% of the number of shares of common stock reported herein will vest and be delivered in March 2026 and 50% will vest and be delivered in December 2026.
- [F4]Includes 8,533 restricted stock units that have not yet vested or been delivered to the Reporting Person.
- [F5]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. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement of the operational targets.
- [F6]50% of the portion of the option reported herein will vest and become exercisable in March 2026. 50% of the portion of the option reported herein will vest and become exercisable in December 2026.
- [F7]Represents a portion of an option to purchase shares of common stock previously granted by the Issuer on March 22, 2023, the vesting of which was subject to the Issuer's achievement of certain pre-determined operational targets over a multi-year performance period. The Compensation, Nominating and Governance Committee of the Issuer's Board of Directors determined on March 25, 2026 that certain of the operational targets had been achieved. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement of the operational targets.
- [F8]This option was granted on March 25, 2026 and has a four-year vesting schedule in which 25% vests on the first anniversary of the grant date and the remainder vests in equal monthly installments for 36 months thereafter, such that the stock option vests in full on the four-year anniversary of the grant date.
Signature
Diana Scherer, Attorney-in-Fact|2026-03-27