GKOS

GLAUKOS Corp

Name: GLAUKOS Corp insider trading (SEC Form 4) history
Creator: U.S. Securities and Exchange Commission

SEC CIK 1192448

$129.80 +14.6% · 90 days

90-day buys

0 open-market

90-day sells

$6.51M

11 open-market

Net insider flow

−$6.51M

Net selling

Filings shown

Most recent

At a glance

Over the last 90 days, insiders at GKOS have sold a net $6.51M of stock (0 open-market buys vs 11 sells).

Largest recent trade: Burns Thomas William sold $21.5M of GKOS, trimming their stake 55%.

Most active filer: Burns Thomas William, with 28 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for GKOS, newest first

View on SEC EDGAR ↗

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 10, 2024 ΔOwn −0.1%

Burns Thomas William sold $3.2K of GKOS.

−$3.2K

37 sh @ $87

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 10, 2024 ΔOwn −2.0%

Burns Thomas William sold $186.6K of GKOS, trimming their stake 2%.

−$186.6K

2,314 sh @ $81

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 10, 2024 ΔOwn −11%

Burns Thomas William sold $1.03M of GKOS, trimming their stake 11%.

−$1.03M

12,614 sh @ $82

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 10, 2024 ΔOwn −23%

Burns Thomas William sold $1.92M of GKOS, trimming their stake 23%.

−$1.92M

23,299 sh @ $82

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 10, 2024 ΔOwn −23%

Burns Thomas William sold $1.49M of GKOS, trimming their stake 23%.

−$1.49M

17,873 sh @ $83

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 10, 2024 ΔOwn −6.5%

Burns Thomas William sold $328.4K of GKOS, trimming their stake 7%.

−$328.4K

3,900 sh @ $84

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 3, 2024 ΔOwn −34%

Burns Thomas William sold $3.97M of GKOS, trimming their stake 34%.

−$3.97M

51,764 sh @ $77

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 3, 2024 ΔOwn −35%

Burns Thomas William sold $2.72M of GKOS, trimming their stake 35%.

−$2.72M

35,086 sh @ $78

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Jan 3, 2024 ΔOwn −13%

Burns Thomas William sold $639.7K of GKOS, trimming their stake 13%.

−$639.7K

8,150 sh @ $78

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Dec 22, 2023 ΔOwn −59%

Burns Thomas William sold $6.79M of GKOS, trimming their stake 59%.

−$6.79M

79,684 sh @ $85

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Dec 18, 2023 ΔOwn −23%

Burns Thomas William sold $2.1M of GKOS, trimming their stake 23%.

−$2.1M

26,195 sh @ $80

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Dec 18, 2023 ΔOwn −32%

Burns Thomas William sold $2.35M of GKOS, trimming their stake 32%.

−$2.35M

28,835 sh @ $81

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Dec 18, 2023 ΔOwn −8.2%

Burns Thomas William sold $406.4K of GKOS, trimming their stake 8%.

−$406.4K

4,970 sh @ $82

GKOS

GLAUKOS Corp

Sell Stapley Marc · Director · Open-market sale · filed Dec 18, 2023 ΔOwn −19%

Stapley Marc sold $696.1K of GKOS, trimming their stake 19%.

−$696.1K

9,206 sh @ $76

GKOS

GLAUKOS Corp

Sell Stapley Marc · Director · Open-market sale · filed Dec 18, 2023 ΔOwn −18%

Stapley Marc sold $537.8K of GKOS, trimming their stake 18%.

−$537.8K

7,044 sh @ $76

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Dec 18, 2023 ΔOwn −21%

Burns Thomas William sold $1.34M of GKOS, trimming their stake 21%.

−$1.34M

17,688 sh @ $76

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Dec 18, 2023 ΔOwn −18%

Burns Thomas William sold $940.1K of GKOS, trimming their stake 18%.

−$940.1K

12,312 sh @ $76

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Oct 4, 2023 ΔOwn −15%

Burns Thomas William sold $1.04M of GKOS, trimming their stake 15%.

−$1.04M

14,726 sh @ $71

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Oct 4, 2023 ΔOwn −12%

Burns Thomas William sold $722.6K of GKOS, trimming their stake 12%.

−$722.6K

10,100 sh @ $72

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Oct 4, 2023 ΔOwn −16%

Burns Thomas William sold $869.7K of GKOS, trimming their stake 16%.

−$869.7K

11,963 sh @ $73

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Oct 4, 2023 ΔOwn −13%

Burns Thomas William sold $580.4K of GKOS, trimming their stake 13%.

−$580.4K

7,879 sh @ $74

GKOS

GLAUKOS Corp

Sell Burns Thomas William · Director, CHAIRMAN & CEO · Open-market sale · filed Oct 4, 2023 ΔOwn −0.6%

Burns Thomas William sold $24.7K of GKOS, trimming their stake 1%.

−$24.7K

332 sh @ $74

GKOS

GLAUKOS Corp

Buy MORE ROBERT J · Director · Open-market purchase · filed Jun 30, 2015 ΔOwn NEW

More Robert J, GKOS's Director, spent $90K of their own money on 5,000 shares at $18, opening a brand-new position.

+$90K

5,000 sh @ $18

About GKOS insider activity

This page tracks every recent Form 4 filed for GLAUKOS Corp with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is GKOS insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for GLAUKOS Corp usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.