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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 11 sales; 367 institutions reported holding it in 13F filings for Q2 2026, worth $8.44B in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding GLAUKOS Corp changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of GKOS: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders3326336+10
Shares57.1M6.57M58.0M+7.48M (+14.8%)
Value$6.44B$742.2M$6.25B+$549.2M (+9.6%)

6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (50)

Institutions that held GLAUKOS Corp at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to GKOS in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Portfolio Management LLC3,208,363$345.4M0.02%
Vanguard Capital Management LLC2,508,771$270.1M0.01%
Driehaus Capital Management LLC487,912$52.5M0.39%
Jennison Associates LLC487,020$52.4M0.04%
Westfield Capital Management Co LP482,219$51.9M0.22%
Vanguard Fiduciary Trust Co396,719$42.7M0.01%
ExodusPoint Capital Management, LP179,728$19.3M0.19%
Lord, Abbett & Co. LLC120,214$12.9M0.04%
Renaissance Technologies LLC118,892$12.8M0.02%
Squarepoint Ops LLC108,049$11.6M0.03%
Trexquant Investment LP62,381$6.72M0.05%
Vanguard Asset Management, Ltd52,761$5.68M0.00%
Engineers Gate Manager LP46,923$5.05M0.06%
Toronto Dominion Bank36,126$3.89M0.01%
Susquehanna International Group, LLP35,072$3.78M0.00%
Pier Capital, LLC29,261$3.15M0.52%
Harbor Capital Advisors, Inc.26,384$2.84M0.23%
Vanguard Global Advisers, LLC23,082$2.49M0.00%
Verition Fund Management LLC21,120$2.27M0.02%
Vanguard Investments Australia, Ltd.14,313$1.54M0.00%
Congress Asset Management Co11,644$1.25M0.01%
Allstate Corp11,191$1.20M0.01%
Fideuram - Intesa Sanpaolo Private Banking S.P.A.9,357$1.01M0.04%
Fox Run Management, L.L.C.5,971$627.0K0.11%
Vestmark Advisory Solutions, Inc.4,377$471.2K0.01%
Inceptionr LLC4,348$468.1K0.11%
Winton Group Ltd3,700$398.3K0.01%
TFB Advisors LLC3,543$381.4K0.20%
Stephens Inc3,371$362.9K0.00%
CIBC Bancorp USA Inc.2,836$305.3K0.00%
CMH Wealth Management LLC2,438$262.5K0.05%
Mount Yale Investment Advisors, LLC2,290$246.5K0.01%
Boothbay Fund Management, LLC2,259$243.2K0.01%
Daiwa Securities Group Inc.2,072$223.1K0.00%
GTS Securities LLC1,871$201.4K0.01%
Archer Investment Corp1,594$171.6K0.04%
Twin Peaks Wealth Advisors, LLC160$17.2K0.00%
Sunbelt Securities, Inc.105$11.3K0.00%
Forum Finance Group S.A.100$9.00K0.00%
TFC Financial Management72$7.75K0.00%
JPL Wealth Management, LLC65$7.00K0.00%
LRI Investments, LLC36$3.88K0.00%
Zions Bancorporation, National Association17$1.83K0.00%
Root Financial Partners, LLC14$1.51K0.00%
Whipplewood Advisors, LLC7$7540.00%
Addison Advisors LLC5$5390.00%
Prestige Wealth Management Group LLC4$4310.00%
Advisory Services Network, LLC3$3230.00%
GHP Investment Advisors, Inc.2$2160.00%
Hughes Financial Services, LLC2$2150.00%

Sold out (40)

Institutions that held GLAUKOS Corp at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of GKOS in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Sofinnova Investments, Inc.288,128$32.5M
Perceptive Advisors LLC140,000$15.8M
Defilade Capital Management, L.P.91,703$10.4M
Balyasny Asset Management LLC87,171$9.84M
Two Sigma Advisers, LP69,000$7.79M
Resolute Capital Asset Partners LLC40,500$4.57M
Connor, Clark & Lunn Investment Management Ltd.30,070$3.40M
SummitTX Capital, L.P.29,534$3.33M
Clough Capital Partners L P20,368$2.30M
CenterBook Partners LP13,257$1.50M
Capital Fund Management S.A.12,627$1.43M
Dark Forest Capital Management LP12,268$1.39M
Teacher Retirement System of Texas10,407$1.18M
Lighthouse Investment Partners, LLC10,000$1.13M
Prelude Capital Management, LLC9,200$1.04M
Evoke Wealth, LLC7,441$840.2K
Legato Capital Management LLC6,700$756.5K
Mariner, LLC5,960$673.0K
Entropy Technologies, LP4,114$464.5K
Persistent Asset Partners Ltd3,770$425.7K
Third View Private Wealth, LLC2,830$319.5K
Gotham Asset Management, LLC2,666$301.0K
Inspire Advisors, LLC2,645$298.7K
Bayforest Capital Ltd2,499$282.2K
Colony Group, LLC1,957$221.0K
MML Investors Services, LLC1,839$207.6K
Kestra Advisory Services, LLC1,137$128.4K
Twin Tree Management, LP1,070$120.8K
OP Asset Management Ltd355$40.1K
Danske Bank A/S300$33.9K
Quest Partners LLC270$30.5K
Torren Management, LLC153$17.3K
DV Trading LLC100$11.3K
SJS Investment Consulting Inc.68$7.68K
SageView Advisory Group, LLC65$7.34K
Clearstead Advisors, LLC57$6.44K
T. Rowe Price Investment Management, Inc.25$3.00K
Kilter Group LLC16$1.81K
SHP Wealth Management5$565
Dunhill Financial, LLC1$99

Not filed for Q1 2026 yet (6)

Institutions that held GLAUKOS Corp at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding GKOS in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc6,020,492$679.8M
Norges Bank536,143$60.5M
Comerica Bank12,885$1.45M
CIBC World Markets Corp3,699$417.7K
Global Retirement Partners, LLC72$8.13K
CIBC Private Wealth Group, LLC23$2.60K