Senior insider sale

Chief Development Officer at GLAUKOS CORP — senior position signals high conviction

$2.78M

16K shares

What this filing means

NAVRATIL TOMAS plans to sell 16K shares of GLAUKOS CORP valued at approximately $2.78M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

NAVRATIL TOMAS

Filed: 8/28/2026ACC: 0001959173-26-006521

InsiderNAVRATIL TOMASCIK 1920053

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IssuerGLAUKOS CORPCIK 1192448

Officer· Chief Development Officer

Since Apr 2022

16K

Shares to sell

$2.78M

Approx. market value

13.74K

Acquired (3 months)

Planned

2 completed

Securities Acquired — Last 3 Months14

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Restricted Stock Vesting

Compensation

3/13/2026

2.03K

Restricted Stock Vesting

Compensation

2/24/2026

578.00

Restricted Stock Vesting

Compensation

10/17/2023

517.00

Restricted Stock Vesting

Compensation

4/20/2023

335.00

Restricted Stock Vesting

Compensation

4/10/2023

839.00

Restricted Stock Vesting

Compensation

4/1/2023

637.00

Restricted Stock Vesting

Compensation

3/24/2023

3.36K

Restricted Stock Vesting

Compensation

3/1/2023

336.00

Restricted Stock Vesting

Compensation

2/11/2023

671.00

Restricted Stock Vesting

Compensation

1/11/2023

636.00

Restricted Stock Vesting

Compensation

11/2/2022

637.00

Restricted Stock Vesting

Compensation

4/6/2022

637.00

Restricted Stock Vesting

Compensation

4/1/2022

637.00

Restricted Stock Vesting

Compensation

1/1/2022

1.90K

Total acquired13.74K

Acquisition Date	Type	Amount Acquired	Gift
3/13/2026	Restricted Stock Vesting Compensation	2.03K	—
2/24/2026	Restricted Stock Vesting Compensation	578.00	—
10/17/2023	Restricted Stock Vesting Compensation	517.00	—
4/20/2023	Restricted Stock Vesting Compensation	335.00	—
4/10/2023	Restricted Stock Vesting Compensation	839.00	—
4/1/2023	Restricted Stock Vesting Compensation	637.00	—
3/24/2023	Restricted Stock Vesting Compensation	3.36K	—
3/1/2023	Restricted Stock Vesting Compensation	336.00	—
2/11/2023	Restricted Stock Vesting Compensation	671.00	—
1/11/2023	Restricted Stock Vesting Compensation	636.00	—
11/2/2022	Restricted Stock Vesting Compensation	637.00	—
4/6/2022	Restricted Stock Vesting Compensation	637.00	—
4/1/2022	Restricted Stock Vesting Compensation	637.00	—
1/1/2022	Restricted Stock Vesting Compensation	1.90K	—
Total		13.74K

Planned & Completed Dispositions3

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Completed

—Completed

Units to sell

716.00

Market value

$99.6K

7/1/2026

—Completed

Units to sell

1.54K

Market value

$200.9K

6/16/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

13.74K

Market value

$2.48M

8/28/2026

Total

Units

16K

Value

$2.78M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
7/1/2026	716.00	$99.6K	—	Completed
6/16/2026	1.54K	$200.9K	—	Completed
Planned — Approximate Date
8/28/2026	13.74K	$2.48M	NYSE	Planned
Total	16K	$2.78M