Navratil Tomas Insider Trades & Stock Holdings

CHIEF DEVELOPMENT OFFICER · Glaukos Corporation · Latest filing Oct 5, 2026

Navratil Tomas, CHIEF DEVELOPMENT OFFICER at Glaukos Corporation has 3 Form 4 trades on file since Sep 16, 2026. Open-market activity: 0 purchases ($0) and 3 sales ($743.48K), net -$743.48K. Latest filing: disposed of 1.53K shares of $GKOS on Oct 5, 2026 at $164.45.

Trades on file

3

Open-market bought

$0

Open-market sold

$743.48K

Net open-market

-$743.48K

Latest filing

Oct 5, 2026

All insider trades by Navratil Tomas

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 5, 2026	$GKOS	Sell (Open-market sale) 10b5-1	1.53K	$164.45	$251.12K			+2.4%			CHIEF DEVELOPMENT OFFICER		—
Sep 25, 2026	$GKOS	Sell (Open-market sale) 10b5-1	1.61K	$154.28	$249.16K			+6.0%			CHIEF DEVELOPMENT OFFICER		—
Sep 16, 2026	$GKOS	Sell (Open-market sale) 10b5-1	1.46K	$166.92	$243.20K			-6.1%	+0.8%		CHIEF DEVELOPMENT OFFICER		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Navratil Tomas traded

• $GKOS

Frequently asked questions

Has Navratil Tomas been buying or selling stock?

Navratil Tomas has 0 open-market purchases and 3 open-market sales on file, net -$743.48K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Navratil Tomas's latest insider trade?

disposed of 1.53K shares of $GKOS on Oct 5, 2026 at $164.45.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.