About this data
What it is
When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
Who files it
The insider, usually through the company, within two business days of the trade.
How current
We collect new filings throughout the day on SEC business days.
Worth knowing
Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.

All of this comes from public filings.

Open-market trades per day, last 30 days

05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0
05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0

Purchases Sales

By trade date. Insiders have two business days to file, so the most recent days fill in later.

Latest open-market insider trades

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Showing: ticker GKOS

Latest open-market insider trades
TradedInsiderCompanyTypeSharesPriceValueFiling
Nov 4, 2026Gilbert H. Kliman
Director
GKOS
Glaukos Corporation
Sale2,500$253.00$632.5K SaleForm 4 ↗
Oct 30, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale6,436$240.52$1.5M SaleForm 4 ↗
Oct 30, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale14,943$239.64$3.6M SaleForm 4 ↗
Oct 30, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale12,836$238.56$3.1M SaleForm 4 ↗
Oct 30, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale10,221$237.54$2.4M SaleForm 4 ↗
Sep 25, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale1,083$154.88$167.7K SaleForm 4 ↗
Sep 25, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale229$154.24$35.3K SaleForm 4 ↗
Sep 25, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale136$152.71$20.8K SaleForm 4 ↗
Sep 25, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale167$151.70$25.3K SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale4$172.00$688 SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale234$170.95$40.0K SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale120$168.38$20.2K SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale460$167.32$77.0K SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale191$166.20$31.7K SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale345$164.60$56.8K SaleForm 4 ↗
Sep 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale103$163.20$16.8K SaleForm 4 ↗
Aug 28, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale10$182.50$1,825 SaleForm 4 ↗
Aug 28, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale6,091$181.19$1.1M SaleForm 4 ↗
Aug 28, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale7,643$180.25$1.4M SaleForm 4 ↗
Aug 19, 2026Gilbert H. Kliman
Director
GKOS
Glaukos Corporation
Sale2,500$190.00$475.0K SaleForm 4 ↗
Aug 11, 2026Joseph E. Gilliam
PRESIDENT & COO
GKOS
Glaukos Corporation
Sale32,037$180.49$5.8M SaleForm 4 ↗
Aug 11, 2026Joseph E. Gilliam
PRESIDENT & COO
GKOS
Glaukos Corporation
Sale27,963$178.89$5.0M SaleForm 4 ↗
Aug 7, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale20,000$180.13$3.6M SaleForm 4 ↗
Jul 31, 2026Leana Wen
Director
GKOS
Glaukos Corporation
Sale525$167.63$88.0K SaleForm 4 ↗
Jul 16, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale10,000$160.00$1.6M SaleForm 4 ↗
Jul 9, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale10,000$155.00$1.6M SaleForm 4 ↗
Jul 6, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale10,000$150.00$1.5M SaleForm 4 ↗
Jul 1, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale716$139.06$99.6K SaleForm 4 ↗
Jun 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale1,537$130.68$200.9K SaleForm 4 ↗
May 14, 2026Gilbert H. Kliman
Director
GKOS
Glaukos Corporation
Sale5,000$140.76$703.8K SaleForm 4 ↗
May 11, 2026Gilbert H. Kliman
Director
GKOS
Glaukos Corporation
Sale5,000$135.00$675.0K SaleForm 4 ↗
May 1, 2026Leana Wen
Director
GKOS
Glaukos Corporation
Sale1,700$143.35$243.7K SaleForm 4 ↗
May 1, 2026Joseph E. Gilliam
PRESIDENT & COO
GKOS
Glaukos Corporation
Sale19,573$143.54$2.8M SaleForm 4 ↗
Apr 30, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale10,000$140.00$1.4M SaleForm 4 ↗
Apr 10, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale32$120.23$3,847 SaleForm 4 ↗
Apr 10, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale614$119.35$73.3K SaleForm 4 ↗
Apr 10, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale210$117.45$24.7K SaleForm 4 ↗
Apr 10, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale1,237$116.72$144.4K SaleForm 4 ↗
Mar 25, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale2,511$106.46$267.3K SaleForm 4 ↗
Mar 24, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale1,521$105.24$160.1K SaleForm 4 ↗
Mar 17, 2026Alex R. Thurman
SVP & CHIEF FINANCIAL OFFICER
GKOS
Glaukos Corporation
Sale625$99.15$62.0K SaleForm 4 ↗
Mar 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale272$99.05$26.9K SaleForm 4 ↗
Mar 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale299$98.21$29.4K SaleForm 4 ↗
Mar 16, 2026Tomas Navratil
CHIEF DEVELOPMENT OFFICER
GKOS
Glaukos Corporation
Sale460$97.33$44.8K SaleForm 4 ↗
Feb 19, 2026Aimee S. Weisner
Director
GKOS
Glaukos Corporation
Sale6,471$118.56$767.2K SaleForm 4 ↗
Feb 19, 2026Aimee S. Weisner
Director
GKOS
Glaukos Corporation
Sale1,134$117.33$133.1K SaleForm 4 ↗
Feb 19, 2026Aimee S. Weisner
Director
GKOS
Glaukos Corporation
Sale5,242$116.64$611.4K SaleForm 4 ↗
Feb 19, 2026Aimee S. Weisner
Director
GKOS
Glaukos Corporation
Sale2,153$115.69$249.1K SaleForm 4 ↗
Jan 22, 2026Joseph E. Gilliam
PRESIDENT & COO
GKOS
Glaukos Corporation
Sale3,194$129.28$412.9K SaleForm 4 ↗
Jan 22, 2026Joseph E. Gilliam
PRESIDENT & COO
GKOS
Glaukos Corporation
Sale1,798$128.07$230.3K SaleForm 4 ↗

The newest 50 items, most recent first. Every row links to its original filing. Updated Nov 15, 2026, 4:45 PM EST.

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