Navratil Tomas

Insider

CHIEF DEVELOPMENT OFFICER

Trades at: GKOS

30D 90D 1Y

Net shares · 365d

-10.3K

0 buy · 10.3K sell

Net value · 365d

-$1.0M

$0 in · $1.0M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 10.3K sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 365d

Open-market Buys Sells All types

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

$246.2K

2.1K sh · $117.62 avg · 4 lots

Own -2%
GKOS Sell·S
Mar 16, 26

CHIEF DEVELOPMENT OFFICER

$101.1K

1.0K sh · $98.04 avg · 3 lots

Own -1%
GKOS Sell·S
Sep 22, 25

CHIEF DEVELOPMENT OFFICER · 10b5-1

$43.5K

517 sh · $84.22 avg · 3 lots

Own -1%
GKOS Sell·S
Sep 11, 25

CHIEF DEVELOPMENT OFFICER · 10b5-1

$453.6K

5.1K sh · $88.22 avg · 2 lots

Own -6%

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	2.1K4 lots	-2%	$117.62 avg	$246.2K
Mar 16, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	1.0K3 lots	-1%	$98.04 avg	$101.1K
Sep 22, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	5173 lots	-1%	$84.22 avg	$43.5K
Sep 11, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	5.1K2 lots	-6%	$88.22 avg	$453.6K

Buy Sell Non-market (grant · exercise · gift)

About Navratil Tomas

This profile aggregates every SEC Form 4 insider transaction reported by Navratil Tomas 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.