Hyliion Holdings Corp. (HYLN) Insider Ownership

Historic Insider Ownership Trends

As of May 23, 2026, the three largest insider holders of HYLN 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
Howard M Jenkins - 5,213,435 0 15 Mar, 2023
Robert M Jr Knight - 375,345 0 13 Feb, 2026
Edward E Olkkola - 863,045 0 28 Feb, 2022
Richard Joseph Freeland - 283,774 0 13 Feb, 2026
Melanie Montague Trent - 218,774 0 13 Feb, 2026
Jeffrey A Craig - 402,845 0 13 Feb, 2026
Andrew H Jr Card - 101,435 0 15 Nov, 2023
Elaine L. Chao - 57,606 0 15 Mar, 2023
Jose Miguel Oxholm Chief Legalcompliance Officer 823,370 0 04 Mar, 2026
Vincent T. Cubbage - 1,092,863 0 13 Feb, 2026
Stephen S. Pang - 130,009 0 15 Mar, 2023
Rodger L Boehm - 218,474 0 13 Feb, 2026
Mary Gustanski - 256,379 0 13 Feb, 2026
Sherri Baker Chief Financial Officer 236,985 0 28 Feb, 2022
Patrick Sexton Chief Technology Officer 364,499 0 26 Apr, 2022
Thomas J. Healy Chief Executive Officer 35,340,288 0 04 Mar, 2026
Greg Standley Chief Accounting Officer. 261,280 0 04 Mar, 2026
Dennis M. Gallagher Chief Operating Officer 476,575 0 18 Dec, 2023
Cheri Lantz Chief Strategy Officer 730,204 0 04 Mar, 2026
Jon Panzer Chief Financial Officer 957,140 0 04 Mar, 2026
Joshua T. Mook Chief Technology Officer 1,114,109 0 04 Mar, 2026
Govindaraj Ramasamy Chief Commercial Officer 607,105 0 10 Mar, 2026

* 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
10 Mar, 2026 Govindaraj Ramasamy Common Stock D 130 $2.02 607,105 D J
03 Mar, 2026 Govindaraj Ramasamy Common Stock D 12,758 $2.04 607,235 D J
03 Mar, 2026 Joshua T. Mook Common Stock D 14,816 $2.04 1,114,109 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 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 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 Joshua T. Mook Common Stock D 14,816 $2.04 1,114,109 D J
03 Mar, 2026 Jose Miguel Oxholm Common Stock D 24,900 $2.04 823,370 D J
03 Mar, 2026 Jose Miguel Oxholm Common Stock D 24,900 $2.04 823,370 D J
03 Mar, 2026 Cheri Lantz Common Stock D 16,700 $2.04 730,204 D J
11 Feb, 2026 Govindaraj Ramasamy Common Stock A 80,488 $2.05 619,993 D A
11 Feb, 2026 Greg Standley Common Stock A 46,803 $2.05 268,691 D A
11 Feb, 2026 Jon Panzer Common Stock A 100,610 $2.05 973,960 D A
11 Feb, 2026 Melanie Montague Trent Common Stock A 60,976 $2.05 218,774 D A
11 Feb, 2026 Richard Joseph Freeland Common Stock A 60,976 $2.05 283,774 D A