Glaukos Corporation (GKOS)
NYSE: GKOS
· Real-Time Price · USD
87.39
2.90 (3.43%)
At close: Oct 03, 2025, 3:59 PM
87.41
0.02%
After-hours: Oct 03, 2025, 05:16 PM EDT
13F Institute Ownership
Total Institutes of 309 in Glaukos reduced their positions with a decrease of 27 investors compared to the previous quarter. An additional 4.08M shares, as total invested capital grew by $664.63M with ownership percentage increasing from 100.59% to 107.26%.
Options Activity
Institutions are holding more Puts Contracts as Calls Contracts, indicating a bearish sentiment.
Put/Call 1.751
1.75
Call Flow 258,600
36%
Put Flow 452,900
64%
Top Shareholders
| Institute | Ownership | Shares | Shares % Change | Market Value | Portfolio | Filing Date |
|---|---|---|---|---|---|---|
| Blackrock, Inc. | 15.33% | 8.72M | +1.96% | 901.15M | 0.02% | Aug 12, 2025 |
| FMR LLC | 11.13% | 6.34M | -3.07% | 654.51M | 0.04% | Aug 14, 2025 |
| Vanguard Group Inc | 10.74% | 6.11M | +2.47% | 631.33M | 0.01% | Aug 11, 2025 |
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