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GLAUKOS Corp

GKOS
Exchange
NYSE
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001192448

In the last 90 days, GLAUKOS Corp insiders filed 0 open-market purchases and 10 sales; 367 institutions reported holding it in 13F filings for Q2 2026, worth $8.46B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by GLAUKOS Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
10 filings
5 insiders, $22.4M in total
Insiders trading
5
Net value
−$22.4M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for GLAUKOS Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for GLAUKOS Corp
NameTitleLast reported holdingLast filingFilings, past year
Navratil TomasCHIEF DEVELOPMENT OFFICER72,433Sep 18, 202616
Kliman Gilbert HDirector37,406Aug 20, 20266
Gilliam Joseph EPRESIDENT & COO72,588Aug 13, 202613
Thurman Alex R.SVP & CHIEF FINANCIAL OFFICER43,906Aug 11, 202611
Wen LeanaDirector21,092Aug 3, 20264
Burns Thomas WilliamCHAIRMAN & CEO68,967Jun 29, 202612
Weisner Aimee SDirector18,806Jun 23, 20263
Hoffmeister David FDirector47,671Jun 23, 20263
Foley Mark JDirector58,389Jun 23, 20262
Stapley MarcDirector37,449Jun 23, 20263
Torres DeniceDirector22,334Jun 23, 20262
Calcaterra Chris M.Chief Operating Officer181,594Mar 28, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 18, 2026 (view filing)5:32 PM ETSep 162 daysNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−1.46K$166.92−$243.2K−2.0%72.4K after7 lots10b5-1
Sep 1, 2026 (view filing)6:24 PM ETAug 284 daysNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−13.7K$180.67−$2.48M−15.7%73.9K after3 lots
Aug 20, 2026 (view filing)8:11 PM ETAug 191 dayKliman Gilbert HDirectorSSale−2.50K$190.00−$475.0K−6.3%37.4K after
Aug 13, 2026 (view filing)7:57 PM ETAug 112 daysGilliam Joseph EPRESIDENT & COOSSale−60.0K$179.74−$10.8M−45.3%72.6K after2 lots
Aug 11, 2026 (view filing)5:31 PM ETAug 74 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−20.0K$180.13−$3.60M−31.3%43.9K after10b5-1
Aug 3, 2026 (view filing)4:41 PM ETJul 313 daysWen LeanaDirectorSSale−525$167.63−$88.0K−2.4%21.1K after
Jul 21, 2026 (view filing)4:26 PM ETJul 165 daysLateThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−10.0K$160.00−$1.60M−18.6%43.9K after10b5-1
Jul 13, 2026 (view filing)8:04 PM ETJul 94 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−10.0K$155.00−$1.55M−18.6%43.7K after10b5-1
Jul 8, 2026 (view filing)9:13 PM ETJul 62 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−10.0K$150.00−$1.50M−18.6%43.7K after10b5-1
Jul 8, 2026 (view filing)8:53 PM ETJul 17 daysLateNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−716$139.06−$99.6K−0.8%87.6K after10b5-1
Jun 18, 2026 (view filing)Jun 162 daysNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−1.54K$130.68−$200.9K−1.7%88.8K after10b5-1
May 18, 2026 (view filing)May 144 daysKliman Gilbert HDirectorSSale−5.00K$140.76−$703.8K−12.3%35.5K after
May 13, 2026 (view filing)May 112 daysKliman Gilbert HDirectorSSale−5.00K$135.00−$675.0K−12.3%35.5K after
May 4, 2026 (view filing)Apr 304 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−10.0K$140.00−$1.40M−18.6%43.7K after10b5-1
May 4, 2026 (view filing)May 13 daysWen LeanaDirectorSSale−1.70K$143.35−$243.7K−7.9%19.7K after
May 4, 2026 (view filing)May 13 daysGilliam Joseph EPRESIDENT & COOSSale−19.6K$143.54−$2.81M−21.0%73.4K after
Apr 14, 2026 (view filing)Apr 104 daysNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−2.09K$117.62−$246.2K−2.3%90.4K after4 lots10b5-1
Mar 27, 2026 (view filing)Mar 252 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−2.51K$106.46−$267.3K−5.6%42.0K after10b5-1
Mar 25, 2026 (view filing)Mar 241 dayThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−1.52K$105.24−$160.1K−3.2%46.5K after10b5-1
Mar 19, 2026 (view filing)Mar 172 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−625$99.15−$62.0K−1.3%49.2K after10b5-1
Mar 19, 2026 (view filing)Mar 163 daysLateNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−1.03K$98.04−$101.1K−1.4%73.6K after3 lots
Feb 23, 2026 (view filing)Feb 194 daysWeisner Aimee SDirectorSSale−15.0K$117.38−$1.76M−44.4%18.8K after4 lots
Jan 26, 2026 (view filing)Jan 224 daysGilliam Joseph EPRESIDENT & COOSSale−10.5K$127.68−$1.34M−10.2%92.4K after4 lots10b5-1
Jan 26, 2026 (view filing)Jan 224 daysStapley MarcDirectorSSale−15.0K$127.71−$1.92M−28.6%37.4K after5 lots10b5-1
Jan 23, 2026 (view filing)Jan 212 daysGilliam Joseph EPRESIDENT & COOSSale−4.50K$124.65−$561.2K−4.6%92.4K after10b5-1
Jan 20, 2026 (view filing)Jan 8-1612 daysLateBurns Thomas WilliamCHAIRMAN & CEOSSale−275.0K$115.00−$31.6M−64.1%153.8K after2 lots10b5-1
Dec 11, 2025 (view filing)Dec 92 daysKliman Gilbert HDirectorSSale−5.00K$107.27−$536.4K−12.5%34.9K after
Nov 26, 2025 (view filing)Nov 251 dayThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−315$105.00−$33.1K−0.6%50.5K after10b5-1
Nov 20, 2025 (view filing)Nov 182 daysGilliam Joseph EPRESIDENT & COOSSale−19.3K$90.00−$1.74M−17.3%92.4K after
Sep 24, 2025 (view filing)Sep 222 daysNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−517$84.22−$43.5K−0.7%76.4K after3 lots10b5-1
Sep 12, 2025 (view filing)Sep 111 dayNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−5.14K$88.22−$453.6K−6.4%75.5K after2 lots10b5-1
Mar 27, 2025 (view filing)Mar 252 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−1.52K$106.84−$162.4K−2.8%53.4K after3 lots10b5-1
Feb 28, 2025 (view filing)Feb 262 daysFoley Mark JDirectorSSale−20.7K$120.72−$2.50M−27.6%54.2K after
Feb 19, 2025 (view filing)Feb 145 daysNavratil TomasCHIEF DEVELOPMENT OFFICERSSale−3.42K$147.14−$502.6K−4.5%72.4K after10b5-1
Dec 23, 2024 (view filing)Dec 203 daysGilliam Joseph EPRESIDENT & COOSSale−3.33K$149.85−$498.7K−3.2%102.2K after2 lots10b5-1
Dec 23, 2024 (view filing)Dec 203 daysKliman Gilbert HDirectorSSale−10.0K$150.28−$1.50M−23.6%32.3K after10b5-1
Dec 13, 2024 (view filing)Dec 112 daysKliman Gilbert HDirectorSSale−2.00K$144.01−$288.0K−5.8%32.3K after
Nov 1, 2024 (view filing)Oct 302 daysGilliam Joseph EPRESIDENT & COOSSale−2.27K$138.97−$316.2K−2.2%102.2K after10b5-1
Sep 11, 2024 (view filing)Sep 92 daysKliman Gilbert HDirectorSSale−3.00K$130.67−$392.0K−8.5%32.3K after2 lots
Aug 23, 2024 (view filing)Aug 212 daysGilliam Joseph EPRESIDENT & COOSSale−5.00K$129.36−$646.8K−4.7%102.2K after2 lots10b5-1
Aug 19, 2024 (view filing)Aug 154 daysStapley MarcDirectorSSale−6.25K$125.93−$787.1K−15.5%34.1K after4 lots10b5-1
Aug 12, 2024 (view filing)Aug 84 daysWeisner Aimee SDirectorSSale−25.0K$120.00−$3.00M−45.4%30.1K after
Jul 9, 2024 (view filing)Jul 54 daysGilliam Joseph EPRESIDENT & COOSSale−2.25K$121.39−$273.1K−2.2%101.8K after10b5-1
Jun 5, 2024 (view filing)Jun 32 daysGilliam Joseph EPRESIDENT & COOSSale−2.50K$113.50−$283.8K−2.4%101.8K after3 lots10b5-1
Jun 3, 2024 (view filing)May 304 daysKliman Gilbert HDirectorSSale−5.00K$112.00−$560.0K−14.0%30.6K after
May 16, 2024 (view filing)May 151 dayStapley MarcDirectorSSale−6.25K$112.80−$705.0K−16.2%32.4K after3 lots10b5-1
May 14, 2024 (view filing)May 104 daysGilliam Joseph EPRESIDENT & COOSSale−2.40K$110.56−$264.8K−2.3%101.8K after10b5-1
May 14, 2024 (view filing)May 104 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−353$110.51−$39.0K−0.7%51.6K after2 lots10b5-1
May 8, 2024 (view filing)May 62 daysGilliam Joseph EPRESIDENT & COOSSale−105$110.36−$11.6K−0.1%101.8K after10b5-1
May 8, 2024 (view filing)May 62 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−90$110.26−$9.92K−0.2%52.0K after10b5-1