Standley Greg (CIK 1842715) reported 20 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-21). Recent activity: Sell HYLN (3,981 shares), Sell HYLN (7,411 shares), Buy HYLN (46,803 shares), Sell HYLN (4,010 shares), Sell HYLN (519 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-21 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 3,981 | $16,123 |
| 2026-03-04 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 7,411 | $15,118 |
| 2026-02-13 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Buy | 46,803 | $95,946 |
| 2025-12-15 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 4,010 | $7,779 |
| 2025-12-01 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 519 | $960 |
| 2025-11-18 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 2,275 | $3,868 |
| 2025-11-14 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 1,264 | $2,402 |
| 2025-11-06 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 1,577 | $3,280 |
| 2025-08-29 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 519 | $877 |
| 2025-08-14 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 2,781 | $4,700 |
| 2025-08-08 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 6,307 | $9,524 |
| 2025-05-28 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 519 | $592 |
| 2025-05-27 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Buy | 5,000 | $5,650 |
| 2025-05-14 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 1,264 | $2,263 |
| 2025-03-26 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 656 | $1,017 |
| 2025-03-18 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 427 | $683 |
| 2025-03-03 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 964 | $1,629 |
| 2025-02-27 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 476 | $766 |
| 2025-02-20 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Buy | 27,722 | $0 |
| 2025-02-13 | Hyliion Holdings Corp. (HYLN) | Chief Accounting Officer. | Sell | 4,977 | $9,904 |
Source: SEC Form 4 filings · as of 2026-05-21