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 7 sales; 368 institutions reported holding it in 13F filings for Q2 2026, worth $8.44B in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 12, 2026
- $14.6B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $15.0M in total
- 7
- 13F holdersQ2 2026, +33 vs. previous quarter
- 368
- 13F valueReported value at the end of Q2 2026
- $8.44B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $507.4M
- +32.3% year over year
- Net income, FY2025
- -$187.7M
- No comparable prior period
- Free cash flow, FY2025
- -$22.5M
- No comparable prior period
- Revenue, Q3 FY2026
- $211.0M
- +58.0% year over year
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 4.48M
- Shares sold short
- Change
- +140.8K
- +3.2% vs. previous
- Days to cover
- 2.85
- At average daily volume
Superinvestors holding GKOS, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding GKOS at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov 5, 2026 (view filing)7:32 PM ET | Nov 4 | 1 day | Kliman Gilbert HDirector | SSale | −2.50K | $253.00 | −$632.5K | −6.3%37.4K after | |
| Nov 3, 2026 (view filing)9:45 PM ET | Oct 30 | 4 days | Navratil TomasCHIEF DEVELOPMENT OFFICER | SSale | −44.4K | $238.97 | −$10.6M | −54.3%37.3K after | 4 lots |
| Oct 7, 2026 (view filing)7:07 PM ET | Oct 5 | 2 days | Navratil TomasCHIEF DEVELOPMENT OFFICER | SSale | −1.53K | $164.45 | −$251.1K | −2.2%69.3K after | 3 lots10b5-1 |
| Sep 28, 2026 (view filing)6:23 PM ET | Sep 25 | 3 days | Navratil TomasCHIEF DEVELOPMENT OFFICER | SSale | −1.61K | $154.28 | −$249.2K | −2.2%70.8K after | 4 lots10b5-1 |
| 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 |
Top 10 13F holders, Q2 2026
See all 368 holdersThe 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 |
Holders of 5% or more of GKOS
See all 5 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of GLAUKOS Corp.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 14.40%8.16M shares | – | Apr 29, 20251 filing | Apr 29, 2025 | SEC |
| Janus Henderson Group PLC | 13G/A | 9.20%5.35M shares | +3.90 ppfrom 5.30% | Feb 17, 20262 filings | May 15, 2026 | SEC |
| Primecap Management Co | 13G | 5.88%3.38M shares | New | Feb 11, 20261 filing | Feb 11, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.60%3.26M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.07%2.95M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |