Michael J. Rich is President & CRO at Zscaler, Inc. (ZS). They have made 12 open-market trades across 1 company since 2024, most recently 2026-09-16.
CIK 0002009289
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ZS | 96,193 | $20.0M |
Shares reported on the most recent Form 4, priced at the 2026-09-17 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ZS | SELL | 2026-09-16 | 2026-09-17 | $192.76 | $792K | -0.2% | — | — |
| ZS | SELL | 2026-06-16 | 2026-06-17 | $126.43 | $529K | +14.5% | +21.6% | +57.2% |
| ZS | SELL | 2026-03-17 | 2026-03-18 | $156.59 | $986K | -12.2% | -13.8% | -18.7% |
| ZS | SELL | 2025-12-16 | 2025-12-17 | $230.82 | $946K | -0.5% | -6.4% | -31.8% |
| ZS | SELL | 2025-09-16 | 2025-09-17 | $280.70 | $6.6M | +5.1% | +6.3% | -17.6% |
| ZS | SELL | 2025-06-17 | 2025-06-18 | $303.70 | $2.6M | +0.6% | -5.5% | -7.7% |
| ZS | SELL | 2025-06-12 | 2025-06-16 | $302.88 | $6.1M | +4.0% | -5.1% | -5.8% |
| ZS | SELL | 2025-03-18 | 2025-03-20 | $199.15 | $1.4M | +0.3% | -3.4% | +52.3% |
| ZS | SELL | 2024-12-17 | 2024-12-19 | $200.32 | $1.5M | +0.5% | +6.1% | +12.8% |
| ZS | SELL | 2024-09-17 | 2024-09-18 | $171.28 | $1.6M | -1.1% | +10.0% | +16.0% |
| ZS | SELL | 2024-06-18 | 2024-06-20 | $180.93 | $1.8M | +9.9% | +5.3% | -5.9% |
| ZS | SELL | 2024-03-18 | 2024-03-20 | $193.15 | $1.6M | -5.4% | -15.2% | -10.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.