Institutional Holders (2026 Q1)
335 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in GKOS. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Brown Capital Management LLC | 3.52% | 230,028 | $24.8M |
| 2 | Braidwell LP | 2.74% | 763,505 | $82.2M |
| 3 | PFM Health Sciences, LP | 2.12% | 215,685 | $23.2M |
| 4 | Taylor Frigon Capital Management LLC | 1.44% | 23,445 | $2.5M |
| 5 | Exome Asset Management LLC | 1.16% | 20,874 | $2.2M |
| 6 | Riverbridge Partners LLC | 1.14% | 433,228 | $46.6M |
| 7 | Rhenman & Partners Asset Management AB | 1.12% | 84,000 | $9.0M |
| 8 | Integral Health Asset Management, LLC | 0.90% | 175,000 | $18.8M |
| 9 | Granite Investment Partners, LLC | 0.74% | 111,872 | $12.0M |
| 10 | Ehrlich Financial Group | 0.62% | 10,014 | $1.1M |
| 11 | Osterweis Capital Management Inc | 0.53% | 94,863 | $10.2M |
| 12 | Pier Capital, LLC | 0.52% | 29,261 | $3.2M |
| 13 | Champlain Investment Partners, LLC | 0.44% | 319,027 | $34.3M |
| 14 | Driehaus Capital Management LLC | 0.39% | 487,912 | $52.5M |
| 15 | William Blair Investment Management, LLC | 0.38% | 1,073,819 | $115.6M |
| 16 | Bellevue Group AG | 0.37% | 145,703 | $15.7M |
| 17 | Holocene Advisors, LP | 0.36% | 1,383,715 | $149.0M |
| 18 | Eversept Partners, LP | 0.34% | 60,214 | $6.5M |
| 19 | Primecap Management Co/Ca/ | 0.29% | 3,370,628 | $362.9M |
| 20 | Janus Henderson Group plc | 0.29% | 5,348,395 | $575.8M |
| 21 | Eventide Asset Management, LLC | 0.27% | 150,036 | $16.2M |
| 22 | Westfield Capital Management Co LP | 0.22% | 482,219 | $51.9M |
| 23 | Havemeyer Place LP | 0.21% | 17,077 | $1.8M |
| 24 | Fund Advisors of America Inc/FL | 0.20% | 1,878 | $202K |
| 25 | TFB Advisors LLC | 0.20% | 3,543 | $381K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|