Andrew William Fraser Brown is Director at Zscaler, Inc. (ZS). They have made 33 open-market trades across 4 companies since 2017, most recently 2026-10-08.
CIK 0001593803
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.
2 open-market purchases totalling $1.3M since 2020, against 31 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ZS | 23,292 | $4.8M |
| P | 23,415 | $2.9M |
| GWRE | 2,524 | $426K |
| PSTG | 1,500 | $102K |
| Total | $8.3M |
Shares reported on the most recent Form 4, priced at the 2026-10-13 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 |
|---|---|---|---|---|---|---|---|---|
| P | SELL | 2026-10-08 | 2026-10-13 | $156.03 | $666K | — | — | — |
| P | SELL | 2026-06-25 | 2026-06-29 | $72.57 | $344K | +8.6% | -5.1% | +77.1% |
| ZS | SELL | 2025-06-04 | 2025-06-06 | $296.72 | $12.1M | +0.6% | +3.9% | -11.6% |
| ZS | SELL | 2025-04-02 | 2025-04-03 | $206.00 | $2.1M | +10.9% | +26.2% | +67.6% |
| ZS | SELL · 10b5-1 | 2024-09-23 | 2024-09-24 | $174.10 | $1.4M | +0.0% | +5.8% | +6.9% |
| PSTG | SELL | 2024-04-15 | 2024-04-17 | $52.31 | $2.2M | +0.4% | +13.2% | +22.4% |
| ZS | SELL | 2023-12-21 | 2024-01-18 | $220.45 | $1.1M | +5.3% | +8.8% | -24.5% |
| ZS | SELL | 2023-12-15 | 2023-12-18 | $221.75 | $1.1M | +0.0% | +1.7% | -11.5% |
| PSTG | SELL | 2023-06-26 | 2023-06-28 | $35.83 | $652K | +6.4% | +4.6% | -6.7% |
| ZS | SELL | 2023-06-09 | 2023-06-09 | $150.85 | $1.7M | -4.8% | +1.4% | +5.9% |
| ZS | BUY | 2022-12-23 | 2022-12-27 | $108.78 | $544K | -2.9% | +16.1% | +3.7% |
| PSTG | SELL | 2022-12-21 | 2022-12-22 | $27.28 | $542K | -2.5% | +1.3% | -8.3% |
| PSTG | SELL | 2022-09-12 | 2022-09-14 | $30.18 | $763K | -11.0% | -10.3% | +2.9% |
| GWRE | SELL | 2022-06-23 | 2022-06-23 | $74.14 | $297K | -2.9% | -1.1% | -20.1% |
| PSTG | SELL | 2022-03-21 | 2022-03-22 | $35.20 | $814K | +1.2% | -13.0% | -26.0% |
| ZS | SELL | 2021-10-01 | 2021-10-01 | $263.07 | $5.3M | +9.7% | +21.9% | +24.2% |
| ZS | SELL | 2021-06-17 | 2021-06-17 | $212.27 | $2.1M | +2.7% | +3.5% | +26.8% |
| ZS | SELL | 2021-03-03 | 2021-03-03 | $188.99 | $1.1M | -0.0% | -5.0% | +4.0% |
| GWRE | BUY | 2020-12-18 | 2020-12-21 | $124.49 | $747K | -0.6% | -0.9% | -18.7% |
| ZS | SELL | 2020-05-29 | 2020-06-02 | $90.00 | $6.0M | -2.9% | +4.4% | +35.8% |
| ZS | SELL | 2020-05-07 | 2020-05-11 | $75.00 | $158K | -2.4% | +36.4% | +57.9% |
| ZS | SELL | 2020-03-25 | 2020-03-25 | $65.00 | $390K | +5.0% | +12.0% | +83.0% |
| GWRE | SELL | 2020-03-19 | 2020-03-20 | $85.43 | $357K | -7.0% | +10.5% | +31.8% |
| ZS | SELL | 2020-03-02 | 2020-03-02 | $52.81 | $491K | -25.0% | +17.7% | +108.8% |
| ZS | SELL | 2020-01-15 | 2020-01-16 | $60.00 | $162K | -7.9% | +3.0% | +12.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.