GLAUKOS CORP's ticker is GKOS and the CUSIP is 377322102. A total of 217 filers reported holding GLAUKOS CORP in Q1 2021. The put-call ratio across all filers is 0.46 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $4,951,000 | -86.5% | 58,990 | -87.9% | 0.00% | -87.1% |
| Q4 2020 | $36,570,000 | -32.9% | 485,913 | -55.8% | 0.03% | -45.6% |
| Q3 2020 | $54,481,000 | +71.4% | 1,100,186 | +33.0% | 0.06% | +50.0% |
| Q2 2020 | $31,779,000 | +83.9% | 827,139 | +47.8% | 0.04% | +26.7% |
| Q1 2020 | $17,276,000 | -7.9% | 559,792 | +62.5% | 0.03% | +36.4% |
| Q4 2019 | $18,765,000 | +17.5% | 344,511 | +34.8% | 0.02% | -8.3% |
| Q3 2019 | $15,971,000 | -16.4% | 255,494 | +0.9% | 0.02% | +50.0% |
| Q2 2019 | $19,101,000 | +36.5% | 253,339 | +41.9% | 0.02% | -20.0% |
| Q1 2019 | $13,989,000 | +230.3% | 178,502 | +136.7% | 0.02% | +400.0% |
| Q4 2018 | $4,235,000 | -76.0% | 75,400 | -72.2% | 0.00% | -82.6% |
| Q3 2018 | $17,621,000 | +66.9% | 271,500 | +4.5% | 0.02% | +53.3% |
| Q2 2018 | $10,559,000 | +35.4% | 259,800 | +2.7% | 0.02% | +25.0% |
| Q1 2018 | $7,797,000 | +83.9% | 252,900 | +53.0% | 0.01% | +71.4% |
| Q4 2017 | $4,240,000 | – | 165,300 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| INTERWEST VENTURE MANAGEMENT CO | 350,264 | $15,565,000 | 9.20% |
| Taylor Frigon Capital Management LLC | 108,681 | $4,830,000 | 1.51% |
| Brown Capital Management | 3,021,796 | $134,289,000 | 1.11% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 1,161,414 | $51,613,000 | 1.08% |
| Altium Capital Management LP | 81,000 | $3,600,000 | 0.99% |
| Rhenman & Partners Asset Management AB | 175,000 | $8,022,000 | 0.53% |
| Cinctive Capital Management LP | 126,463 | $5,620,000 | 0.25% |
| RIVERBRIDGE PARTNERS LLC | 554,555 | $24,644,000 | 0.24% |
| Aquatic Capital Management LLC | 2,500 | $111,000 | 0.21% |
| FOX RUN MANAGEMENT, L.L.C. | 6,899 | $307,000 | 0.18% |