14 insiders reported 132 Form 4 transactions for Hyliion Holdings Corp. (HYLN) over the past 18 months (most recent 2026-06-30). Recent activity: Healy Thomas J. (Chief Executive Officer) Sell 2.5M shares, Oxholm Jose Miguel (Chief Legal&Compliance Officer) Sell 8,550 shares, Healy Thomas J. (Chief Executive Officer) Sell 16,600 shares, Standley Greg (Chief Accounting Officer.) Sell 3,981 shares, Panzer Jon (Chief Financial Officer) Sell 6,100 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-30 | Healy Thomas J. | Chief Executive Officer | Sell | 2.5M | $0 |
| 2026-05-21 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Sell | 8,550 | $34,713 |
| 2026-05-21 | Healy Thomas J. | Chief Executive Officer | Sell | 16,600 | $67,728 |
| 2026-05-21 | Standley Greg | Chief Accounting Officer. | Sell | 3,981 | $16,123 |
| 2026-05-21 | Panzer Jon | Chief Financial Officer | Sell | 6,100 | $24,766 |
| 2026-05-21 | MOOK JOSHUA T. | Chief Technology Officer | Sell | 4,800 | $19,488 |
| 2026-05-21 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Sell | 4,800 | $19,488 |
| 2026-05-21 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Sell | 3,026 | $11,862 |
| 2026-05-21 | Healy Thomas J. | Chief Executive Officer | Sell | 11,426 | $45,475 |
| 2026-05-21 | Panzer Jon | Chief Financial Officer | Sell | 1,965 | $7,703 |
| 2026-05-21 | MOOK JOSHUA T. | Chief Technology Officer | Sell | 2,003 | $7,852 |
| 2026-05-21 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Sell | 1,715 | $6,723 |
| 2026-03-10 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Sell | 130 | $263 |
| 2026-03-04 | Standley Greg | Chief Accounting Officer. | Sell | 7,411 | $15,118 |
| 2026-03-04 | Healy Thomas J. | Chief Executive Officer | Sell | 58,202 | $119,314 |
| 2026-03-04 | Panzer Jon | Chief Financial Officer | Sell | 16,820 | $34,313 |
| 2026-03-04 | MOOK JOSHUA T. | Chief Technology Officer | Sell | 14,816 | $30,225 |
| 2026-03-04 | RAMASAMY GOVINDARAJ | Chief Commercial Officer | Sell | 12,758 | $26,026 |
| 2026-03-04 | Oxholm Jose Miguel | Chief Legal&Compliance Officer | Sell | 24,900 | $50,796 |
| 2026-03-04 | LANTZ CHERI | Chief Strategy Officer | Sell | 16,700 | $34,068 |
| 2026-02-13 | Freeland Richard Joseph | Director | Buy | 60,976 | $125,001 |
| 2026-02-13 | MOOK JOSHUA T. | Chief Technology Officer | Buy | 95,122 | $195,000 |
| 2026-02-13 | Gustanski Mary | Director | Buy | 60,976 | $125,001 |
| 2026-02-13 | Healy Thomas J. | Chief Executive Officer | Buy | 296,342 | $607,501 |
| 2026-02-13 | Boehm Rodger L | Director | Buy | 60,676 | $124,386 |
Source: SEC Form 4 filings · as of 2026-06-30