Based on data from the past 90 days ending January 10, 2026, Hyliion Holdings's three largest insider shareholders are Chief Executive Officer Thomas J. Healy (35.10Mn shares), Director Howard M Jenkins (5.21Mn shares), Director Edward E Olkkola (1.04Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Thomas J. Healy | Chief Executive Officer | 35,102,148 | 15 Dec, 2025 |
| Howard M Jenkins | 5,213,435 | 15 Mar, 2023 | |
| Edward E Olkkola | 1,035,705 | 28 Feb, 2022 | |
| Joshua T. Mook | Chief Technology Officer | 1,033,803 | 15 Dec, 2025 |
| Vincent T. Cubbage | 1,031,887 | 20 Feb, 2025 | |
| Jon Panzer | Chief Financial Officer | 873,350 | 15 Dec, 2025 |
| Jose Miguel Oxholm | Chief Legal&Compliance Officer | 753,148 | 19 Dec, 2025 |
| Cheri Lantz | Chief Strategy Officer | 746,904 | 15 Dec, 2025 |
| Govindaraj Ramasamy | Chief Commercial Officer | 539,505 | 15 Dec, 2025 |
| Dennis M. Gallagher | Chief Operating Officer | 476,575 | 18 Dec, 2023 |
| Patrick Sexton | Chief Technology Officer | 364,499 | 28 Apr, 2022 |
| Jeffrey A Craig | 341,869 | 20 Feb, 2025 | |
| Robert M Jr Knight | 314,369 | 20 Feb, 2025 | |
| Sherri Baker | Chief Financial Officer | 236,985 | 28 Feb, 2022 |
| Richard Joseph Freeland | 222,798 | 21 Aug, 2025 | |
| Greg Standley | Chief Accounting Officer. | 221,888 | 15 Dec, 2025 |
| Mary Gustanski | 195,403 | 20 Feb, 2025 | |
| Rodger L Boehm | 157,798 | 20 Feb, 2025 | |
| Melanie Montague Trent | 157,798 | 20 Feb, 2025 | |
| Stephen S. Pang | 130,009 | 15 Mar, 2023 | |
| Andrew H Jr Card | 101,435 | 15 Nov, 2023 | |
| Elaine L. Chao | 57,606 | 15 Mar, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Dec, 2025 | Jose Miguel Oxholm | Common Stock | D | 2,480 | $1.78 | 753,148 | D | J |
| 12 Dec, 2025 | Jose Miguel Oxholm | Common Stock | D | 23,422 | $1.94 | 755,628 | D | J |
| 12 Dec, 2025 | Thomas J. Healy | Common Stock | D | 134,963 | $1.94 | 35,102,148 | D | J |
| 12 Dec, 2025 | Greg Standley | Common Stock | D | 4,010 | $1.94 | 221,888 | D | J |
| 12 Dec, 2025 | Cheri Lantz | Common Stock | D | 15,646 | $1.94 | 746,904 | D | J |
| 12 Dec, 2025 | Jon Panzer | Common Stock | D | 16,440 | $1.94 | 873,350 | D | J |
| 12 Dec, 2025 | Joshua T. Mook | Common Stock | D | 12,949 | $1.94 | 1,033,803 | D | J |
| 12 Dec, 2025 | Govindaraj Ramasamy | Common Stock | D | 12,949 | $1.94 | 539,505 | D | J |
| 03 Dec, 2025 | Cheri Lantz | Common Stock | D | 2,700 | $1.86 | 762,550 | D | J |
| 28 Nov, 2025 | Jon Panzer | Common Stock | D | 2,435 | $1.88 | 889,790 | D | F |
| 27 Nov, 2025 | Greg Standley | Common Stock | D | 519 | $1.85 | 225,898 | D | F |
| 27 Nov, 2025 | Joshua T. Mook | Common Stock | D | 1,361 | $1.85 | 1,046,752 | D | F |
| 26 Nov, 2025 | Joshua T. Mook | Common Stock | A | 540,541 | $1.85 | 1,048,113 | D | A |
| 17 Nov, 2025 | Jose Miguel Oxholm | Common Stock | D | 31,105 | $1.66 | 779,050 | D | J |
| 17 Nov, 2025 | Thomas J. Healy | Common Stock | D | 159,776 | $1.66 | 35,237,111 | D | J |
| 17 Nov, 2025 | Cheri Lantz | Common Stock | D | 25,218 | $1.66 | 765,250 | D | J |
| 17 Nov, 2025 | Joshua T. Mook | Common Stock | D | 9,039 | $1.66 | 507,572 | D | J |
| 14 Nov, 2025 | Greg Standley | Common Stock | D | 2,275 | $1.70 | 226,417 | D | F |
| 14 Nov, 2025 | Jon Panzer | Common Stock | D | 9,406 | $1.70 | 892,225 | D | F |
| 14 Nov, 2025 | Joshua T. Mook | Common Stock | D | 7,397 | $1.70 | 516,611 | D | F |