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GKOS · GLAUKOS Corp

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$181.67 +1.10 (+0.61%)
Market Cap
$10.70B
Shares
58.98M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 364
Total Value: $8,620,649,517
Total Shares: 61,681,916

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 364 13F filers · Δ vs Mar 31, 2026
Top Holder
15.5%
Sep 2023 → Jun 2026 · range 14.1% – 15.8%
+0.0 pts
Top 5
37.8%
Sep 2023 → Jun 2026 · range 37.8% – 47.0%
−2.1 pts
Top 10
51.4%
Sep 2023 → Jun 2026 · range 51.4% – 61.6%
−2.2 pts
HHI
449
Sep 2023 → Jun 2026 · range 449 – 640
Broadly held−34

Quarterly Activity

vs Mar 31, 2026
New
68
Increased
150
Decreased
101
Sold Out
44
Unchanged
45
Holder count: +24
Institutional value: +35.9%
Shares held: +4.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 376
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1192448 CUSIP 377322102 13F (30d) 300 filings 300 filers Visit website Investor relations