YOUNG WILLIAM JOHN (CIK 1687130) reported 10 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-20). Recent activity: Buy SND (62,893 shares), Sell SND (3,885 shares), Sell SND (3,885 shares), Buy SND (27,879 shares), Buy SND (32,812 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Smart Sand, Inc. (SND) | Chief Operating Officer | Buy | 62,893 | $0 |
| 2026-06-09 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 3,885 | $21,173 |
| 2026-03-19 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 3,885 | $15,851 |
| 2026-03-03 | Smart Sand, Inc. (SND) | Chief Operating Officer | Buy | 27,879 | $0 |
| 2026-03-03 | Smart Sand, Inc. (SND) | Chief Operating Officer | Buy | 32,812 | $0 |
| 2026-03-03 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 17,292 | $89,745 |
| 2026-03-03 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 9,291 | $48,220 |
| 2026-02-24 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 12,260 | $64,365 |
| 2025-07-31 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 7,551 | $15,706 |
| 2025-06-10 | Smart Sand, Inc. (SND) | Chief Operating Officer | Sell | 3,885 | $7,459 |
来源：SEC Form 4 申报文件 · 截至 2026-08-20