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.
13F holders, Q3 2025
Institutional positions in GLAUKOS Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 315
- +21 vs. Q2 2025
- Shares held
- 55.9M
- −4.37M (−7.2%) vs. Q2 2025
- Total value
- $4.56B
- −$1.67B (−26.7%) vs. Q2 2025
- New holders
- 62
- 105 more added
- Sold out
- 41
- 116 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GKOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 367 | $8.44B |
| Q1 2026 | 336 | $6.25B |
| Q4 2025 | 332 | $6.44B |
| Q3 2025 | 315 | $4.56B |
| Q2 2025 | 298 | $6.30B |
| Q1 2025 | 317 | $5.67B |
| Q4 2024 | 322 | $8.57B |
| Q3 2024 | 315 | $7.15B |
| Q2 2024 | 282 | $6.39B |
| Q1 2024 | 254 | $4.89B |
| Q4 2023 | 246 | $4.05B |
| Q3 2023 | 233 | $3.75B |
| Q2 2023 | 220 | $3.45B |
| Q1 2023 | 203 | $2.37B |
| Q4 2022 | 215 | $2.03B |
| Q3 2022 | 222 | $2.36B |
| Q2 2022 | 199 | $2.01B |
| Q1 2022 | 211 | $2.50B |
| Q4 2021 | 208 | $1.94B |
| Q3 2021 | 206 | $2.13B |
| Q2 2021 | 219 | $4.10B |
| Q1 2021 | 217 | $4.13B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding GLAUKOS Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brown Capital Management LLC | 762,760 | $62.2M | 2.56% | −376,359−33.0% | Reduced |
| Braidwell LP | 780,164 | $63.6M | 1.89% | +176,750+29.3% | Added |
| Capital World Investors | 850,893 | $69.4M | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 913,410 | $74.5M | 0.06% | +913,410 | New |
| Janus Henderson Group PLC | 1,065,209 | $86.9M | 0.04% | −21,985−2.0% | Reduced |
| William Blair Investment Management, LLC | 1,093,744 | $89.2M | 0.23% | −42,351−3.7% | Reduced |
| Westfield Capital Management Co LP | 1,231,641 | $100.4M | 0.42% | +63,788+5.5% | Added |
| Geode Capital Management, LLC | 1,316,087 | $107.3M | 0.01% | −14,506−1.1% | Reduced |
| Alliancebernstein L.P. | 1,733,474 | $141.4M | 0.04% | +481,620+38.5% | Added |
| Ameriprise Financial Inc | 1,900,284 | $155.0M | 0.04% | −98,968−5.0% | Reduced |
| State Street Corp | 2,104,362 | $171.6M | 0.01% | +13,997+0.7% | Added |
| Primecap Management Co | 2,253,788 | $183.8M | 0.14% | +425,790+23.3% | Added |
| Wellington Management Group LLP | 3,580,670 | $292.0M | 0.05% | +336,266+10.4% | Added |
| Vanguard Group Inc | 6,046,520 | $493.1M | 0.01% | −65,699−1.1% | Reduced |
| BlackRock, Inc. | 8,655,795 | $705.9M | 0.01% | −68,679−0.8% | Reduced |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −500,472−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −177,123−100.0% | Sold out |
| Divisadero Street Capital Management, LP | 0 | $0 | 0.00% | −101,791−100.0% | Sold out |
| Summit Partners Public Asset Management, LLC | 0 | $0 | 0.00% | −75,000−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −31,496−100.0% | Sold out |
| Armistice Capital, LLC | 0 | $0 | 0.00% | −31,438−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −25,792−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −11,500−100.0% | Sold out |
| Zweig-DiMenna Associates LLC | 0 | $0 | 0.00% | −8,600−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −6,107−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −5,348−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −5,291−100.0% | Sold out |
| Yarbrough Capital, LLC | 0 | $0 | 0.00% | −4,728−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −4,715−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −3,139−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −2,795−100.0% | Sold out |
| Core Wealth Partners LLC | 0 | $0 | 0.00% | −2,450−100.0% | Sold out |
| Ethic Inc. | 0 | $0 | 0.00% | −2,331−100.0% | Sold out |
| Wealth Alliance | 0 | $0 | 0.00% | −2,279−100.0% | Sold out |
| Journey Strategic Wealth LLC | 0 | $0 | 0.00% | −2,137−100.0% | Sold out |
| OneAscent Financial Services LLC | 0 | $0 | 0.00% | −2,105−100.0% | Sold out |
| Apriem Advisors | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| Inspire Advisors, LLC | 0 | $0 | 0.00% | −2,016−100.0% | Sold out |
| Shelton Capital Management | 0 | $0 | 0.00% | −2,015−100.0% | Sold out |
| Revisor Wealth Management LLC | 0 | $0 | 0.00% | −1,914−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −1,957−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −1,942−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −172−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −155−100.0% | Sold out |
| MPWM Advisory Solutions, LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Whipplewood Advisors, LLC | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Kestra Investment Management, LLC | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Sierra Ocean, LLC | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Kilter Group LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| ORG Partners LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| J.Safra Asset Management Corp | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |
| Oliver Lagore Vanvalin Investment Group | – | – | – | – | Not filed |