Rudy Rong, President at ZeroStack, sold ZSTK on Aug 19, 2026
Data as of Oct 16
- Traded
- Aug 19, 2026
- Disclosed
- Aug 21, 2026
- Filed
- 2 days after the trade
Form 4s are due within two business days.
Official filing (SEC Form 4) ↗
The price around the disclosure
ZSTK since disclosure
−15.1%
after the sale
Similar stocks (XLF) since disclosure
−3.4%
XLF — its sector index fund
Change in closing price from Aug 21, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.
Our take
None of our tested rules fired on this trade.