Companies / Glaukos Corp

Glaukos Corp

NYSE: GKOSCIK 1192448ALISO VIEJO, CA

Financials · FY2025

Revenue$507.44M
Net income$-187.69M
Total debt$3.04M
Cash$114.48M
Diluted EPS$-3.28
Shares outstanding59.0M

Ownership

59.0M shares outstanding · as of Jul 28, 2026
2.9%Insiders
Ownership
Insiders2.88%1,697,521
10%+ / strategic16.24%9,580,937
Institutions95.09%56,087,892
Public float0.00%0

Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 11

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Insider% of sharesShares
Burns Thomas WilliamCEOCHAIRMAN & CEO · Director
2.05%1,210,560
Navratil TomasCHIEF DEVELOPMENT OFFICER
0.15%88,350
Gilliam Joseph EPRESIDENT & COO
0.12%72,363
Foley Mark JDirector
0.10%60,267
Weisner Aimee SDirector
0.09%50,189
Hoffmeister David FDirector
0.08%49,549
Thurman Alex R.SVP & CHIEF FINANCIAL OFFICER
0.07%43,681
Stapley MarcDirector
0.07%39,327
Kliman Gilbert HDirector
0.06%37,406
Torres DeniceDirector
0.04%24,212

Institutional holders 340

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HolderValue% of shares
BlackRock, Inc.$1.33B16.17%
Vanguard Group Inc$679.77M10.21%
Janus Henderson Group PLC$575.84M9.07%
Primecap Management CO/CA$381.29M5.73%
State Street Corporation$323.67M3.93%
Ameriprise Financial Inc$237.60M3.57%
AllianceBernstein L.P.$157.80M2.37%
The Goldman Sachs Group, Inc.$152.48M2.29%
Holocene Advisors, LP$146.70M2.20%
Geode Capital Management, LLC$146.06M2.30%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Jan 16, 2026Burns Thomas William
CEO
SellCommon Stock$21.50M-187K
-54.87%
153,775
0.26% of shares
high
Jan 8, 2026Burns Thomas William
CEO
SellCommon Stock$10.13M-88K
-36.41%
153,775
0.26% of shares
medium
Feb 9, 2026Burns Thomas William
CEO
ExerciseCommon Stock$5.13M+166K
+185.22%
255,621
0.43% of shares
low
Jan 16, 2026Burns Thomas William
CEO
ExerciseCommon Stock$3.08M+187K
+121.57%
340,720
0.58% of shares
low
May 1, 2026Gilliam Joseph E
Executive
SellCommon Stock$2.81M-20K
-21.05%
73,419
0.12% of shares
medium
Jan 8, 2026Burns Thomas William
CEO
ExerciseCommon Stock$1.45M+88K
+57.26%
241,830
0.41% of shares
low
Apr 30, 2026Thurman Alex R.
Executive
SellCommon Stock$1.40M-10K
-18.63%
43,681
0.07% of shares
medium
Apr 2, 2026Burns Thomas William
CEO
OtherCommon Stock$818.5K-7K
-9.28%
73,026
0.12% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
Wellington Management Group LLPPassive13G/A———
Primecap Management CO/CAPassive13G—3,376,928—
Janus Henderson Group PLCPassive13G———
Janus Henderson Group PLCPassive13G/A———
Vanguard Capital ManagementPassive13G—2,947,047—
Vanguard Portfolio ManagementPassive13G—3,256,962—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
GKOS——377322102—