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 Other·F
Apr 2, 26

CHIEF DEVELOPMENT OFFICER

$326.3K

3.0K sh · $109.60 avg · 2 lots

Own -3%
GKOS Other·F
Mar 31, 26

CHIEF DEVELOPMENT OFFICER

$635.5K

5.8K sh · $109.60

Own -6%
GKOS Grant·A
Mar 25, 26

CHIEF DEVELOPMENT OFFICER

$0

32.8K sh · 4 lots

Own +48%
GKOS Other·F
Mar 24, 26

CHIEF DEVELOPMENT OFFICER

$548.7K

5.2K sh · $106.05 avg · 2 lots

Own -7%
GKOS Other·F
Mar 16, 26

CHIEF DEVELOPMENT OFFICER

$94.8K

958 sh · $98.94

Own -1%
GKOS Sell·S
Mar 16, 26

CHIEF DEVELOPMENT OFFICER

$101.1K

1.0K sh · $98.04 avg · 3 lots

Own -1%
GKOS Other·F
Mar 13, 26

CHIEF DEVELOPMENT OFFICER

$104.2K

1.1K sh · $97.02

Own -1%
GKOS Other·F
Mar 5, 26

CHIEF DEVELOPMENT OFFICER

$40.5K

361 sh · $112.10

Own -0%
GKOS Other·F
Feb 24, 26

CHIEF DEVELOPMENT OFFICER

$47.2K

396 sh · $119.17

Own -1%
GKOS Other·F
Dec 30, 25

CHIEF DEVELOPMENT OFFICER

$58.3K

510 sh · $114.24

Own -1%
GKOS Grant·A
Dec 11, 25

CHIEF DEVELOPMENT OFFICER

$0

2.1K sh

Own +3%
GKOS Other·F
Sep 23, 25

CHIEF DEVELOPMENT OFFICER · 10b5-1

$40.9K

483 sh · $84.69

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 Other·F
Sep 19, 25

CHIEF DEVELOPMENT OFFICER

$42.6K

510 sh · $83.47

Own -1%
GKOS Grant·A
Sep 18, 25

CHIEF DEVELOPMENT OFFICER

$0

1.9K sh

Own +3%
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
Apr 2, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	3.0K2 lots	-3%	$109.60 avg	$326.3K
Mar 31, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	5.8K	-6%	$109.60	$635.5K
Mar 25, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Grant A	32.8K4 lots	+48%	—	$0
Mar 24, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	5.2K2 lots	-7%	$106.05 avg	$548.7K
Mar 16, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	958	-1%	$98.94	$94.8K
Mar 16, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	1.0K3 lots	-1%	$98.04 avg	$101.1K
Mar 13, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	1.1K	-1%	$97.02	$104.2K
Mar 5, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	361	-0%	$112.10	$40.5K
Feb 24, 2026	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	396	-1%	$119.17	$47.2K
Dec 30, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	510	-1%	$114.24	$58.3K
Dec 11, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Grant A	2.1K	+3%	—	$0
Sep 23, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	483	-1%	$84.69	$40.9K
Sep 22, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Sell S	5173 lots	-1%	$84.22 avg	$43.5K
Sep 19, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Other F	510	-1%	$83.47	$42.6K
Sep 18, 2025	GKOS	CHIEF DEVELOPMENT OFFICER	Grant A	1.9K	+3%	—	$0
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.