Armour Spencer D III (CIK 1399885) reported 5 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-05-21). Recent activity: Buy VNOM (3,612 shares), Buy PUMP (28,181 shares), Sell VNOM (46,715 shares), Buy VNOM (4,173 shares), Buy PUMP (17,939 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-21 | Viper Energy, Inc. (VNOM) | Director | Buy | 3,612 | $0 |
| 2026-05-19 | ProPetro Holding Corp. (PUMP) | Director | Buy | 28,181 | $0 |
| 2025-08-19 | VNOM Sub, Inc. (VNOM) | Director | Sell | 46,715 | $0 |
| 2025-05-22 | Viper Energy, Inc. (VNOM) | Director | Buy | 4,173 | $0 |
| 2025-04-24 | ProPetro Holding Corp. (PUMP) | Director | Buy | 17,939 | $0 |
Source: SEC Form 4 filings · as of 2026-05-21