SPEAKER ANDREW R (CIK 1241268) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-20). Recent activity: Buy SND (18,868 shares), Sell SND (12,469 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Smart Sand, Inc. (SND) | Director | Buy | 18,868 | $0 |
| 2026-03-03 | Smart Sand, Inc. (SND) | Director | Sell | 12,469 | $64,714 |
来源：SEC Form 4 申报文件 · 截至 2026-08-20