Hyliion Holdings Corp. (HYLN) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, Hyliion Holdings's top three insider holders are Thomas J. Healy (Chief Executive Officer, 35.34Mn shares), Howard M Jenkins (Director, 5.21Mn shares), Joshua T. Mook (Chief Technology Officer, 1.11Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Thomas J. Healy Chief Executive Officer 35,340,288 0 04 Mar, 2026
Howard M Jenkins - 5,213,435 0 15 Mar, 2023
Joshua T. Mook Chief Technology Officer 1,114,109 0 04 Mar, 2026
Vincent T. Cubbage - 1,092,863 0 13 Feb, 2026
Jon Panzer Chief Financial Officer 957,140 0 04 Mar, 2026
Edward E Olkkola - 863,045 0 28 Feb, 2022
Jose Miguel Oxholm Chief Legalcompliance Officer 823,370 0 04 Mar, 2026
Cheri Lantz Chief Strategy Officer 730,204 0 04 Mar, 2026
Govindaraj Ramasamy Chief Commercial Officer 607,105 0 10 Mar, 2026
Dennis M. Gallagher Chief Operating Officer 476,575 0 18 Dec, 2023
Jeffrey A Craig - 402,845 0 13 Feb, 2026
Robert M Jr Knight - 375,345 0 13 Feb, 2026
Patrick Sexton Chief Technology Officer 364,499 0 26 Apr, 2022
Richard Joseph Freeland - 283,774 0 13 Feb, 2026
Greg Standley Chief Accounting Officer. 261,280 0 04 Mar, 2026
Mary Gustanski - 256,379 0 13 Feb, 2026
Sherri Baker Chief Financial Officer 236,985 0 28 Feb, 2022
Melanie Montague Trent - 218,774 0 13 Feb, 2026
Rodger L Boehm - 218,474 0 13 Feb, 2026
Edward E Olkkola - 0 172,660 09 Dec, 2021
Stephen S. Pang - 130,009 0 15 Mar, 2023
Andrew H Jr Card - 101,435 0 15 Nov, 2023
Elaine L. Chao - 57,606 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
10 Mar, 2026 Govindaraj Ramasamy Common Stock D 130 $2.02 607,105 D J
03 Mar, 2026 Jose Miguel Oxholm Common Stock D 24,900 $2.04 823,370 D J
03 Mar, 2026 Thomas J. Healy Common Stock D 58,202 $2.05 35,340,288 D J
03 Mar, 2026 Govindaraj Ramasamy Common Stock D 12,758 $2.04 607,235 D J
03 Mar, 2026 Jon Panzer Common Stock D 16,820 $2.04 957,140 D J
03 Mar, 2026 Greg Standley Common Stock D 7,411 $2.04 261,280 D J
03 Mar, 2026 Cheri Lantz Common Stock D 16,700 $2.04 730,204 D J
03 Mar, 2026 Joshua T. Mook Common Stock D 14,816 $2.04 1,114,109 D J
11 Feb, 2026 Jose Miguel Oxholm Common Stock A 95,122 $2.05 848,270 D A
11 Feb, 2026 Richard Joseph Freeland Common Stock A 60,976 $2.05 283,774 D A
11 Feb, 2026 Greg Standley Common Stock A 46,803 $2.05 268,691 D A
11 Feb, 2026 Joshua T. Mook Common Stock A 95,122 $2.05 1,128,925 D A
11 Feb, 2026 Jon Panzer Common Stock A 100,610 $2.05 973,960 D A
11 Feb, 2026 Robert M Jr Knight Common Stock A 60,976 $2.05 375,345 D A
11 Feb, 2026 Jeffrey A Craig Common Stock A 60,976 $2.05 402,845 D A
11 Feb, 2026 Melanie Montague Trent Common Stock A 60,976 $2.05 218,774 D A
11 Feb, 2026 Mary Gustanski Common Stock A 60,976 $2.05 256,379 D A
11 Feb, 2026 Vincent T. Cubbage Common Stock A 60,976 $2.05 1,092,863 D A
11 Feb, 2026 Govindaraj Ramasamy Common Stock A 80,488 $2.05 619,993 D A
11 Feb, 2026 Rodger L Boehm Common Stock A 60,676 $2.05 218,474 D A