MetaCap

Glaukos Insider Trades

NYSE: GKOSHealth CareMedical/Dental InstrumentsUSD

165.69+4.40 (+2.73%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
36 · $29.21M
Shares bought / sold
0 / 176.99K
Net activity
Net selling $29.2 million

Glaukos insider activity

Over the last 12 months, Glaukos insiders reported 63 transactions on SEC Form 4: 0 open-market purchases and 36 sales. Insiders bought $0 and sold $29.2 million worth of stock, for net insider selling of $29.2 million. The largest seller was Gilliam Joseph E, with $13.6 million in reported sales.

The most recent filing shows Navratil Tomas (CHIEF DEVELOPMENT OFFICER) selling 888 shares at $163.93 on Oct 5, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put GKOS's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

GKOS insider transactions

Glaukos insider transactions
DateInsiderTypeSharesValueFiling
Oct 5, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale312$51.67KForm 4
Oct 5, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale327$53.88KForm 4
Oct 5, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale888$145.57KForm 4
Sep 25, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale1,083$167.74KForm 4
Sep 25, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale229$35.32KForm 4
Sep 25, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale136$20.77KForm 4
Sep 25, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale167$25.33KForm 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale4$688Form 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale234$40.00KForm 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale120$20.21KForm 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale460$76.97KForm 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale191$31.74KForm 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale345$56.79KForm 4
Sep 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale103$16.81KForm 4
Aug 28, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale10$1.82KForm 4
Aug 28, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale6,091$1.10MForm 4
Aug 28, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale7,643$1.38MForm 4
Aug 19, 2026Kliman Gilbert HDirectorSale2,500$475.00KForm 4
Aug 19, 2026Kliman Gilbert HDirectorOption exercise2,500$64.42KForm 4
Aug 11, 2026Gilliam Joseph EPRESIDENT & COOSale32,037$5.78MForm 4
Aug 11, 2026Gilliam Joseph EPRESIDENT & COOSale27,963$5.00MForm 4
Aug 11, 2026Gilliam Joseph EPRESIDENT & COOOption exercise10,000$484.60KForm 4
Aug 11, 2026Gilliam Joseph EPRESIDENT & COOOption exercise20,000$1.10MForm 4
Aug 11, 2026Gilliam Joseph EPRESIDENT & COOOption exercise20,000$1.10MForm 4
Aug 11, 2026Gilliam Joseph EPRESIDENT & COOOption exercise10,000$484.60KForm 4
Aug 7, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICERSale20,000$3.60MForm 4
Aug 7, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICEROption exercise20,000$676.20KForm 4
Jul 31, 2026WEN LEANADirectorSale525$88.01KForm 4
Jul 16, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICERSale10,000$1.60MForm 4
Jul 16, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICEROption exercise10,000$386.80KForm 4
Jul 9, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICERSale10,000$1.55MForm 4
Jul 9, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICEROption exercise10,000$386.80KForm 4
Jul 6, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICERSale10,000$1.50MForm 4
Jul 6, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICEROption exercise10,000$386.80KForm 4
Jul 1, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale716$99.57KForm 4
Jun 25, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERTax withholding483$68.86KForm 4
Jun 25, 2026Gilliam Joseph EPRESIDENT & COOTax withholding1,056$150.55KForm 4
Jun 25, 2026Burns Thomas WilliamCHAIRMAN & CEOTax withholding4,059$578.69KForm 4
Jun 16, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale1,537$200.86KForm 4
May 28, 2026Kliman Gilbert HDirectorAward1,878—Form 4
May 28, 2026Hoffmeister David FDirectorAward1,878—Form 4
May 28, 2026Foley Mark JDirectorAward1,878—Form 4
May 28, 2026Stapley MarcDirectorAward1,878—Form 4
May 28, 2026Torres DeniceDirectorAward1,878—Form 4
May 28, 2026WEN LEANADirectorAward1,878—Form 4
May 28, 2026WEISNER AIMEE SDirectorAward1,878—Form 4
May 26, 2026Hoffmeister David FDirectorOption exercise15,000$370.35KForm 4
May 14, 2026Kliman Gilbert HDirectorSale5,000$703.80KForm 4
May 14, 2026Kliman Gilbert HDirectorOption exercise5,000$123.45KForm 4
May 11, 2026Kliman Gilbert HDirectorSale5,000$675.00KForm 4
May 11, 2026Kliman Gilbert HDirectorOption exercise5,000$123.45KForm 4
May 1, 2026WEN LEANADirectorSale1,700$243.69KForm 4
May 1, 2026Gilliam Joseph EPRESIDENT & COOSale19,573$2.81MForm 4
Apr 30, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICERSale10,000$1.40MForm 4
Apr 30, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICEROption exercise10,000$386.80KForm 4
Apr 10, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale32$3.85KForm 4
Apr 10, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale614$73.28KForm 4
Apr 10, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale210$24.66KForm 4
Apr 10, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERSale1,237$144.38KForm 4
Apr 2, 2026Gilliam Joseph EPRESIDENT & COOTax withholding3,169$347.32KForm 4
Apr 2, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERTax withholding1,831$200.68KForm 4
Apr 2, 2026Navratil TomasCHIEF DEVELOPMENT OFFICERTax withholding1,146$125.60KForm 4
Apr 2, 2026Thurman Alex R.SVP & CHIEF FINANCIAL OFFICERTax withholding1,589$174.15KForm 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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