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Glaukos stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+174.3% to $224.41
Glaukos (GKOS) stock rose 174% over the last 252 sessions, to $224.41. On the way it reported 4 quarters, its insiders filed 12 open-market trades and 14 Form 144 notices of planned sales, and the company filed 0 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 4, 2026 | Form 144 | Form 144: Gilbert H. Kliman plans to sell $632K | +5.7% (+4.1% vs SPY) | — | — |
| Nov 4, 2026 | Insider sale | Kliman Gilbert H sold $632K | +5.7% (+4.1% vs SPY) | — | — |
| Oct 30, 2026 | Form 144 | Form 144: Tomas Navratil plans to sell $10.6M | −2.0% (−0.2% vs SPY) | −9.7% (−4.9% vs SPY) | — |
| Oct 30, 2026 | Insider sale | Navratil Tomas sold $2.4M | −2.0% (−0.2% vs SPY) | −9.7% (−4.9% vs SPY) | — |
| Oct 28, 2026 | Earnings | Earnings: beat the EPS estimate by 618.7% | +0.1% (−0.2% vs SPY) | +25.2% (+27.2% vs SPY) | — |
| Oct 5, 2026 | Form 144 | Form 144: Tomas Navratil plans to sell $251K | +0.2% (−0.5% vs SPY) | +1.2% (0.0% vs SPY) | +37.6% (+40.0% vs SPY) |
| Sep 25, 2026 | Form 144 | Form 144: Tomas Navratil plans to sell $249K | −0.3% (−0.8% vs SPY) | +5.2% (+5.6% vs SPY) | +14.4% (+15.4% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: Tomas Navratil plans to sell $243K | −4.9% (−4.5% vs SPY) | −7.1% (−9.5% vs SPY) | −2.2% (−4.1% vs SPY) |
| Aug 28, 2026 | Form 144 | Form 144: Tomas Navratil plans to sell $2.5M | −1.1% (−0.9% vs SPY) | −0.9% (−1.1% vs SPY) | −13.7% (−13.3% vs SPY) |
| Aug 28, 2026 | Insider sale | Navratil Tomas sold $2.5M | −1.1% (−0.9% vs SPY) | −0.9% (−1.1% vs SPY) | −13.7% (−13.3% vs SPY) |
| Aug 19, 2026 | Form 144 | Form 144: Gilbert H Kliman plans to sell $475K | +2.9% (+2.7% vs SPY) | −1.5% (−1.3% vs SPY) | −13.2% (−12.5% vs SPY) |
| Aug 19, 2026 | Insider sale | Kliman Gilbert H sold $475K | +2.9% (+2.7% vs SPY) | −1.5% (−1.3% vs SPY) | −13.2% (−12.5% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Joseph E Gilliam plans to sell $10.8M | +0.3% (+0.6% vs SPY) | +2.3% (+2.3% vs SPY) | −0.9% (+0.5% vs SPY) |
| Aug 11, 2026 | Insider sale | Gilliam Joseph E sold $10.8M | +0.3% (+0.6% vs SPY) | +2.3% (+2.3% vs SPY) | −0.9% (+0.5% vs SPY) |
| Aug 7, 2026 | Form 144 | Form 144: Alex R. Thurman plans to sell $3.6M | +5.2% (+4.5% vs SPY) | +10.3% (+9.0% vs SPY) | +3.7% (+3.5% vs SPY) |
| Jul 31, 2026 | Form 144 | Form 144: Leana Wen plans to sell $88K | −1.1% (−1.8% vs SPY) | +1.5% (−2.1% vs SPY) | +6.5% (+2.8% vs SPY) |
| Jul 31, 2026 | Insider sale | Wen Leana sold $88K | −1.1% (−1.8% vs SPY) | +1.5% (−2.1% vs SPY) | +6.5% (+2.8% vs SPY) |
| Jul 29, 2026 | Earnings | Earnings: beat the EPS estimate by 33.5% | +6.6% (+8.1% vs SPY) | +12.0% (+7.9% vs SPY) | +17.7% (+14.3% vs SPY) |
| Jul 16, 2026 | Form 144 | Form 144: Alex R. Thurman plans to sell $1.6M | −0.9% (−0.4% vs SPY) | −2.6% (−1.6% vs SPY) | +18.9% (+15.9% vs SPY) |
| Jul 9, 2026 | Form 144 | Form 144: Alex R. Thurman plans to sell $1.6M | +1.4% (+0.5% vs SPY) | +2.5% (+1.2% vs SPY) | +11.1% (+8.1% vs SPY) |
| Jul 6, 2026 | Form 144 | Form 144: Alex Thurman plans to sell $1.5M | +0.2% (−0.6% vs SPY) | +2.9% (+1.5% vs SPY) | +14.1% (+12.4% vs SPY) |
| Jul 1, 2026 | Form 144 | Form 144: Tomas Navratil plans to sell $100K | −1.6% (−1.4% vs SPY) | +9.0% (+9.2% vs SPY) | +18.7% (+19.4% vs SPY) |
| May 14, 2026 | Insider sale | Kliman Gilbert H sold $704K | +3.5% (+2.7% vs SPY) | +4.6% (+4.8% vs SPY) | −7.9% (−7.9% vs SPY) |
| May 11, 2026 | Insider sale | Kliman Gilbert H sold $675K | +1.4% (+1.2% vs SPY) | +7.6% (+7.4% vs SPY) | −5.5% (−5.5% vs SPY) |
| May 1, 2026 | Insider sale | Wen Leana sold $244K | −2.4% (−2.7% vs SPY) | −6.9% (−8.6% vs SPY) | −33.2% (−38.6% vs SPY) |
| May 1, 2026 | Insider sale | Gilliam Joseph E sold $2.8M | −2.4% (−2.7% vs SPY) | −6.9% (−8.6% vs SPY) | −33.2% (−38.6% vs SPY) |
| Apr 29, 2026 | Earnings | Earnings: beat the EPS estimate by 35.9% | −2.3% (−2.2% vs SPY) | +10.9% (+9.2% vs SPY) | −11.6% (−17.5% vs SPY) |
| Mar 16, 2026 | Insider sale | Navratil Tomas sold $101K | +2.0% (+1.0% vs SPY) | +4.0% (+5.8% vs SPY) | +21.7% (+16.7% vs SPY) |
| Feb 19, 2026 | Insider sale | Weisner Aimee S sold $1.8M | −3.3% (−3.0% vs SPY) | −0.1% (−1.1% vs SPY) | −17.0% (−13.0% vs SPY) |
| Feb 17, 2026 | Earnings | Earnings: missed the EPS estimate by -43.2% | −2.6% (−2.8% vs SPY) | +9.5% (+9.4% vs SPY) | −6.2% (−4.5% vs SPY) |
Insiders’ record here
In the year on the chart, Glaukos' insiders reported 0 open-market buys ($0) and 12 sales ($23.2M). Of the 7 old enough to score, 0 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +18.7%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
Report card: every quarter against the estimate → Glaukos: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.