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Zscaler stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−37.8% to $197.66
Zscaler (ZS) stock fell 38% over the last 252 sessions, to $197.66. On the way it reported 0 quarters, its insiders filed 4 open-market trades and 15 Form 144 notices of planned sales, and the company filed 3 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 2, 2026 | Form 144 | Form 144: Adam Geller plans to sell $248K | −6.1% (−5.6% vs SPY) | −18.5% (−15.8% vs SPY) | — |
| Oct 12, 2026 | Form 144 | Form 144: Adam Geller plans to sell $246K | −3.5% (−3.4% vs SPY) | −11.9% (−10.0% vs SPY) | — |
| Oct 9, 2026 | Form 144 | Form 144: Adam Geller plans to sell $5.4M | +7.5% (+6.9% vs SPY) | +1.7% (+1.9% vs SPY) | −9.2% (−4.1% vs SPY) |
| Sep 25, 2026 | Form 144 | Form 144: Kevin Rubin plans to sell $332K | −10.6% (−11.1% vs SPY) | −7.7% (−7.3% vs SPY) | +17.3% (+18.3% vs SPY) |
| Sep 24, 2026 | 8-K | Directors and officers: departures, appointments, pay | −10.6% (−11.1% vs SPY) | −7.7% (−7.3% vs SPY) | +17.3% (+18.3% vs SPY) |
| Sep 21, 2026 | Form 144 | Form 144: Adam Geller plans to sell $132K | +4.9% (+3.3% vs SPY) | −2.2% (−3.4% vs SPY) | +7.4% (+6.8% vs SPY) |
| Sep 21, 2026 | Form 144 | Form 144: Robert Schlossman plans to sell $1.1M | +4.9% (+3.3% vs SPY) | −2.2% (−3.4% vs SPY) | +7.4% (+6.8% vs SPY) |
| Sep 17, 2026 | Form 144 | Form 144: James A Beer plans to sell $34K | +3.0% (+1.9% vs SPY) | +11.3% (+9.2% vs SPY) | +14.0% (+11.5% vs SPY) |
| Sep 17, 2026 | Form 144 | Form 144: Adam Geller plans to sell $880K | +3.0% (+1.9% vs SPY) | +11.3% (+9.2% vs SPY) | +14.0% (+11.5% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: Jay Chaudhry plans to sell $550K | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: Robert Schlossman plans to sell $448K | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: Adam Geller plans to sell $1.1M | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: Mike Rich plans to sell $792K | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: Kevin Rubin plans to sell $1.1M | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Insider sale | Schlossman Robert sold $448K | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Insider sale | Rich Michael J. sold $792K | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Insider sale | Rubin Kevin sold $1.1M | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 16, 2026 | Insider sale | Chaudhry Jagtar Singh sold $550K | −1.2% (−0.8% vs SPY) | +8.1% (+5.7% vs SPY) | +13.0% (+11.2% vs SPY) |
| Sep 3, 2026 | 8-K | Exit or disposal costs | −4.6% (−4.2% vs SPY) | −7.7% (−6.6% vs SPY) | +12.7% (+12.2% vs SPY) |
| Jun 25, 2026 | Form 144 | Form 144: Kevin Rubin plans to sell $510K | −2.8% (−2.9% vs SPY) | +14.1% (+12.4% vs SPY) | +11.2% (+10.4% vs SPY) |
| Jun 22, 2026 | Form 144 | Form 144: Adam Geller plans to sell $345K | −0.6% (−0.3% vs SPY) | +5.8% (+8.2% vs SPY) | +17.5% (+17.3% vs SPY) |
| Apr 16, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.3% (−0.9% vs SPY) | −1.0% (−2.0% vs SPY) | +18.1% (+12.9% vs SPY) |
Insiders’ record here
In the year on the chart, Zscaler's insiders reported 0 open-market buys ($0) and 4 sales ($2.9M).
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 →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 2.05 Exit or disposal costs | 954 | −0.2% | 47% | +0.5% | ±2.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Zscaler: 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.