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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $22.4M in total
- 10
- 13F holdersQ2 2026, +34 vs. previous quarter
- 367
- 13F valueReported value at the end of Q2 2026
- $8.46B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding GKOS, Q2 2026
No superinvestor reported holding GKOS at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by GLAUKOS Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 (view filing)5:32 PM ET | Sep 16 | 2 days | Navratil TomasCHIEF DEVELOPMENT OFFICER | SSale | −1.46K | $166.92 | −$243.2K | −2.0%72.4K after | 7 lots10b5-1 |
| Sep 1, 2026 (view filing)6:24 PM ET | Aug 28 | 4 days | Navratil TomasCHIEF DEVELOPMENT OFFICER | SSale | −13.7K | $180.67 | −$2.48M | −15.7%73.9K after | 3 lots |
| Aug 20, 2026 (view filing)8:11 PM ET | Aug 19 | 1 day | Kliman Gilbert HDirector | SSale | −2.50K | $190.00 | −$475.0K | −6.3%37.4K after | |
| Aug 13, 2026 (view filing)7:57 PM ET | Aug 11 | 2 days | Gilliam Joseph EPRESIDENT & COO | SSale | −60.0K | $179.74 | −$10.8M | −45.3%72.6K after | 2 lots |
| Aug 11, 2026 (view filing)5:31 PM ET | Aug 7 | 4 days | Thurman Alex R.SVP & CHIEF FINANCIAL OFFICER | SSale | −20.0K | $180.13 | −$3.60M | −31.3%43.9K after | 10b5-1 |
| Aug 3, 2026 (view filing)4:41 PM ET | Jul 31 | 3 days | Wen LeanaDirector | SSale | −525 | $167.63 | −$88.0K | −2.4%21.1K after | |
| Jul 21, 2026 (view filing)4:26 PM ET | Jul 16 | 5 daysLate | Thurman Alex R.SVP & CHIEF FINANCIAL OFFICER | SSale | −10.0K | $160.00 | −$1.60M | −18.6%43.9K after | 10b5-1 |
| Jul 13, 2026 (view filing)8:04 PM ET | Jul 9 | 4 days | Thurman Alex R.SVP & CHIEF FINANCIAL OFFICER | SSale | −10.0K | $155.00 | −$1.55M | −18.6%43.7K after | 10b5-1 |
| Jul 8, 2026 (view filing)9:13 PM ET | Jul 6 | 2 days | Thurman Alex R.SVP & CHIEF FINANCIAL OFFICER | SSale | −10.0K | $150.00 | −$1.50M | −18.6%43.7K after | 10b5-1 |
| Jul 8, 2026 (view filing)8:53 PM ET | Jul 1 | 7 daysLate | Navratil TomasCHIEF DEVELOPMENT OFFICER | SSale | −716 | $139.06 | −$99.6K | −0.8%87.6K after | 10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in GLAUKOS Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,540,056 | $1.33B | 0.02% | +450,027+5.0% | Added |
| Jupiter Topco LLC | 4,862,894 | $679.6M | 0.28% | +4,862,894 | New |
| Vanguard Portfolio Management LLC | 3,321,839 | $464.3M | 0.02% | +113,476+3.5% | Added |
| Primecap Management Co | 3,040,705 | $425.0M | 0.25% | −329,923−9.8% | Reduced |
| Vanguard Capital Management LLC | 2,551,132 | $356.5M | 0.01% | +42,361+1.7% | Added |
| State Street Corp | 2,315,568 | $323.7M | 0.01% | +132,951+6.1% | Added |
| Millennium Management LLC | 1,581,016 | $221.0M | 0.15% | +407,320+34.7% | Added |
| Holocene Advisors, LP | 1,514,931 | $211.7M | 0.48% | +131,216+9.5% | Added |
| Geode Capital Management, LLC | 1,463,448 | $204.6M | 0.01% | +106,995+7.9% | Added |
| Citadel Advisors LLC | 1,390,017 | $194.3M | 0.11% | −56,909−3.9% | Reduced |