Glaukos ($GKOS) Insider Trading & Smart Money Activity
Glaukos Corporation ($GKOS) has 3 insider trades, 2 13F position changes and 6 analyst ratings on file. In the last 12 months on the open market, no insider bought and 1 insider sold ($743.48K), net -$743.48K.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 1
- Net insider $ (12 mo)
- -$743.48K
- Congress trades (12 mo)
- 0
- 13F moves on file
- 2
- Analyst ratings on file
- 6
GKOS insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 0 | 0 | 0 / 0 | 2 / 0 |
| Q3 2026 | 0 | 2 · $492.36K | 0 / 0 | 0 / 0 |
| Q4 2026 | 0 | 1 · $251.12K | 0 / 0 | 0 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All GKOS insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Insider | Navratil TomasCHIEF DEVELOPMENT OFFICER | Sell (Open-market sale) 10b5-1 | 1.53K sh | $251.12K | +2.4% | — | |||||
| Insider | Navratil TomasCHIEF DEVELOPMENT OFFICER | Sell (Open-market sale) 10b5-1 | 1.61K sh | $249.16K | +6.0% | — | |||||
| Insider | Navratil TomasCHIEF DEVELOPMENT OFFICER | Sell (Open-market sale) 10b5-1 | 1.46K sh | $243.20K | -6.1% | +0.8% | — | ||||
| Analyst | Piper Sandler | Reiterates to buy | PT $165 | +11.2% | +21.2% | Read | |||||
| Analyst | Needham | Reiterates to buy | PT $150 | +8.1% | +23.1% | Read | |||||
| Analyst | Citigroup | Reiterates to buy | PT $162 | +5.2% | +22.9% | Read | |||||
| Analyst | Citigroup | Reiterates to buy | PT $162 | +5.2% | +22.9% | Read | |||||
| Analyst | BTIG | Reiterates to buy | PT $162 | +4.0% | +24.7% | Read | |||||
| Analyst | BTIG | Reiterates to buy | PT $162 | +4.0% | +24.7% | Read | |||||
| 13F | Holocene Advisors | Added | +84.42K sh | $193.39M | -16.5% | -9.6% | — | ||||
| 13F | Holocene Advisors | Added | +84.42K sh | $171.89M | -16.5% | -9.6% | — |
1W / 1M / 6M = how GKOS moved from the trade or filing date.
Insider trading in GKOS: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | 3 | -$743.48K | Oct 5, 2026 |
Institutions moving GKOS (13F)
Analyst ratings on GKOS
| Date | Firm | Action | Rating | Price target | 1W | 1M | 6M | Story |
|---|---|---|---|---|---|---|---|---|
| Piper Sandler | Reiterates | buy | $165 | +11.2% | +21.2% | Read | ||
| Needham | Reiterates | buy | $150 | +8.1% | +23.1% | Read | ||
| Citigroup | Reiterates | buy | $162 | +5.2% | +22.9% | Read | ||
| Citigroup | Reiterates | buy | $162 | +5.2% | +22.9% | Read | ||
| BTIG | Reiterates | buy | $162 | +4.0% | +24.7% | Read | ||
| BTIG | Reiterates | buy | $162 | +4.0% | +24.7% | Read |
Frequently asked questions
Are GKOS insiders buying or selling?
Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 1 insider made 3 open-market sales worth $743.48K, a net -$743.48K.
What is the latest insider trade in GKOS?
Navratil Tomas, CHIEF DEVELOPMENT OFFICER filed a sell (open-market sale) of 1.53K sh worth $251.12K on Oct 5, 2026.
Which institutions changed their GKOS positions?
Recent 13F filers moving the stock include Holocene Advisors.
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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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