Ownership history in GROUP ONE TRADING LLC · 23 quarters on record
This page tracks every 13F SEC filing in which GROUP ONE TRADING LLC reported a position in GLAUKOS CORP (GKOS). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | REDUCED | 357 | -543 | -60.3% | 0.00% | $29K | $81.55 |
| 2025 Q2 | REDUCED | 900 | -3,558 | -79.8% | 0.00% | $93K | $103.29 |
| 2024 Q3 | ADDED | 4,458 | +4,322 | +3177.9% | 0.00% | $581K | $130.28 |
| 2024 Q2 | ADDED | 136 | +15 | +12.4% | 0.00% | $16K | $118.35 |
| 2024 Q1 | REDUCED | 121 | -9,126 | -98.7% | 0.00% | $11K | $94.29 |
| 2023 Q4 | ADDED | 9,247 | +2,470 | +36.4% | 0.00% | $735K | $79.49 |
| 2023 Q3 | REDUCED | 6,777 | -22,319 | -76.7% | 0.00% | $510K | $75.25 |
| 2023 Q2 | ADDED | 29,096 | +25,256 | +657.7% | 0.01% | $2.1M | $71.21 |
| 2023 Q1 | REDUCED | 3,840 | -8,040 | -67.7% | 0.00% | $192K | $50.10 |
| 2022 Q3 | REDUCED | 11,880 | -21,326 | -64.2% | 0.00% | $632K | $53.24 |
As of 2025 Q4 — sorted by position size