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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 $8.44B 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 SDirector20,684Jun 23, 20263
Hoffmeister David FDirector49,549Jun 23, 20263
Foley Mark JDirector60,267Jun 23, 20262
Stapley MarcDirector39,327Jun 23, 20263
Torres DeniceDirector24,212Jun 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
Aug 8, 2022 (view filing)Aug 53 daysKliman Gilbert HDirectorSSale−3.36K$53.01−$178.2K−100.0%0 after
May 17, 2023 (view filing)May 15-162 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−7.57K$60.02−$454.2K−1.1%674.0K after2 lots
May 19, 2023 (view filing)May 17-182 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−12.3K$60.16−$738.9K−1.8%674.0K after2 lots
May 23, 2023 (view filing)May 19-234 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−8$60.03−$480.210.0%674.0K after2 lots
Jun 5, 2023 (view filing)Jun 23 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−142$60.00−$8.52K0.0%674.0K after
Jun 8, 2023 (view filing)Jun 6-72 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−25.0K$66.54−$1.66M−3.6%674.0K after4 lots
Jun 12, 2023 (view filing)Jun 84 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−3.19K$70.02−$223.4K−0.5%674.0K after
Jun 30, 2023 (view filing)Jun 282 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−26.8K$70.19−$1.88M−3.8%674.0K after
Jul 6, 2023 (view filing)Jul 3-53 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−31.4K$69.59−$2.19M−4.5%674.0K after3 lots
Jul 11, 2023 (view filing)Jul 7-104 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−13.6K$70.86−$961.8K−2.0%674.0K after3 lots
Jul 14, 2023 (view filing)Jul 122 daysGilliam Joseph EPRESIDENT & COOSSale−2.70K$73.09−$197.3K−2.2%120.5K after
Jul 18, 2023 (view filing)Jul 144 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−30.0K$77.95−$2.34M−4.3%674.0K after5 lots
Jul 18, 2023 (view filing)Jul 144 daysGilliam Joseph EPRESIDENT & COOSSale−42.1K$78.34−$3.30M−25.9%120.5K after
Jul 21, 2023 (view filing)Jul 192 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−200$80.01−$16.0K0.0%674.0K after
Aug 8, 2023 (view filing)Aug 44 daysKliman Gilbert HDirectorSSale−10.0K$74.56−$745.6K−25.2%29.7K after
Oct 4, 2023 (view filing)Oct 22 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−45.0K$71.98−$3.24M−45.1%54.8K after5 lots10b5-1
Dec 18, 2023 (view filing)Dec 14-154 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−90.0K$79.26−$7.13M−61.7%55.8K after5 lots10b5-1
Dec 18, 2023 (view filing)Dec 144 daysStapley MarcDirectorSSale−16.3K$75.93−$1.23M−34.2%31.3K after2 lots10b5-1
Dec 18, 2023 (view filing)Dec 153 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−1.27K$79.80−$101.3K−2.2%55.8K after
Dec 22, 2023 (view filing)Dec 21-221 dayBurns Thomas WilliamCHAIRMAN & CEOSSale−79.7K$85.21−$6.79M−58.8%55.8K after2 lots10b5-1
Dec 22, 2023 (view filing)Dec 211 dayThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−583$85.14−$49.6K−1.0%55.2K after10b5-1
Dec 22, 2023 (view filing)Dec 211 dayGilliam Joseph EPRESIDENT & COOSSale−25.0K$84.80−$2.12M−17.2%120.0K after3 lots10b5-1
Jan 3, 2024 (view filing)Jan 21 dayBurns Thomas WilliamCHAIRMAN & CEOSSale−95.0K$77.20−$7.33M−63.0%55.8K after3 lots10b5-1
Jan 10, 2024 (view filing)Jan 8-92 daysBurns Thomas WilliamCHAIRMAN & CEOSSale−60.1K$82.55−$4.96M−51.8%55.8K after8 lots10b5-1
Jan 16, 2024 (view filing)Jan 124 daysGilliam Joseph EPRESIDENT & COOSSale−110$89.01−$9.79K−0.1%119.8K after10b5-1
Jan 18, 2024 (view filing)Jan 162 daysGilliam Joseph EPRESIDENT & COOSSale−4.89K$89.17−$436.0K−3.9%119.8K after10b5-1
Jan 22, 2024 (view filing)Jan 184 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−583$90.54−$52.8K−1.1%54.6K after2 lots10b5-1
Jan 24, 2024 (view filing)Jan 222 daysGilliam Joseph EPRESIDENT & COOSSale−524$94.01−$49.3K−0.4%119.8K after10b5-1
Jan 31, 2024 (view filing)Jan 292 daysGilliam Joseph EPRESIDENT & COOSSale−9.48K$94.12−$891.9K−7.3%119.8K after10b5-1
Feb 9, 2024 (view filing)Feb 7-82 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−583$95.74−$55.8K−1.1%54.0K after3 lots10b5-1
Feb 12, 2024 (view filing)Feb 8-94 daysGilliam Joseph EPRESIDENT & COOSSale−5.63K$96.14−$541.4K−4.5%119.8K after2 lots10b5-1
Feb 14, 2024 (view filing)Feb 122 daysGilliam Joseph EPRESIDENT & COOSSale−1.51K$96.80−$146.4K−1.2%119.8K after10b5-1
Feb 26, 2024 (view filing)Feb 233 daysFoley Mark JDirectorSSale−4.56K$92.87−$423.5K−12.1%33.2K after
Feb 27, 2024 (view filing)Feb 234 daysGilliam Joseph EPRESIDENT & COOSSale−140.2K$92.14−$12.9M−58.8%98.4K after3 lots10b5-1
Feb 29, 2024 (view filing)Feb 272 daysKliman Gilbert HDirectorSSale−8.00K$92.00−$736.0K−48.9%8.35K after
Mar 4, 2024 (view filing)Feb 294 daysStapley MarcDirectorSSale−6.25K$90.09−$563.1K−16.2%32.4K after3 lots10b5-1
Mar 8, 2024 (view filing)Mar 62 daysKliman Gilbert HDirectorSSale−8.35K$85.34−$712.3K−100.0%0 after2 lots
Mar 8, 2024 (view filing)Mar 71 dayKliman Gilbert HDirectorSSale−5.00K$88.25−$441.3K−14.0%30.6K after
Apr 3, 2024 (view filing)Apr 21 dayThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−474$90.37−$42.8K−0.9%54.9K after5 lots10b5-1
Apr 5, 2024 (view filing)Apr 3-42 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−750$95.03−$71.3K−1.4%54.2K after3 lots10b5-1
Apr 5, 2024 (view filing)Apr 3-42 daysGilliam Joseph EPRESIDENT & COOSSale−400$96.59−$38.6K−0.4%101.8K after2 lots10b5-1
Apr 9, 2024 (view filing)Apr 54 daysGilliam Joseph EPRESIDENT & COOSSale−2.46K$96.81−$237.9K−2.4%101.8K after10b5-1
Apr 9, 2024 (view filing)Apr 5-84 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−1.63K$99.91−$163.3K−3.0%52.5K after5 lots10b5-1
Apr 10, 2024 (view filing)Apr 82 daysGilliam Joseph EPRESIDENT & COOSSale−59.8K$100.47−$6.01M−37.0%101.8K after4 lots10b5-1
May 6, 2024 (view filing)May 24 daysGilliam Joseph EPRESIDENT & COOSSale−2.06K$105.52−$217.3K−2.0%101.8K after4 lots10b5-1
May 6, 2024 (view filing)May 24 daysThurman Alex R.SVP & CHIEF FINANCIAL OFFICERSSale−442$105.69−$46.7K−0.8%52.1K after3 lots10b5-1
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
May 8, 2024 (view filing)May 62 daysGilliam Joseph EPRESIDENT & COOSSale−105$110.36−$11.6K−0.1%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 14, 2024 (view filing)May 104 daysGilliam Joseph EPRESIDENT & COOSSale−2.40K$110.56−$264.8K−2.3%101.8K after10b5-1