Tomas Navratil

Insider

CHIEF DEVELOPMENT OFFICER

Trades at: GKOS

30D 90D 1Y

Net shares · 90d

-3.6K

0 buy · 3.6K sell

Net value · 90d

-$447.0K

$0 in · $447.0K out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 3.6K sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions · open-market

Include grants & non-market

GKOS Sell·S
Jun 16, 26

CHIEF DEVELOPMENT OFFICER · 10b5-1

$200.9K

1.5K sh · $130.68

Own -2%
GKOS Sell·S
Apr 10, 26

CHIEF DEVELOPMENT OFFICER · 10b5-1

$3.8K

32 sh · $120.23

Own -0%
GKOS Sell·S
Apr 10, 26

CHIEF DEVELOPMENT OFFICER · 10b5-1

$73.3K

614 sh · $119.35

Own -1%
GKOS Sell·S
Apr 10, 26

CHIEF DEVELOPMENT OFFICER · 10b5-1

$24.7K

210 sh · $117.45

Own -0%
GKOS Sell·S
Apr 10, 26

CHIEF DEVELOPMENT OFFICER · 10b5-1

$144.4K

1.2K sh · $116.72

Own -1%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 16, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	1.5K	-2%	$130.68	$200.9K
Apr 10, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	32	-0%	$120.23	$3.8K
Apr 10, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	614	-1%	$119.35	$73.3K
Apr 10, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	210	-0%	$117.45	$24.7K
Apr 10, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	1.2K	-1%	$116.72	$144.4K

About Tomas Navratil

This profile aggregates every SEC Form 4 insider transaction reported by Tomas Navratil across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.