HYLN insider transactions

Director Cubbage Vincent T. gifted 11,500 shares, decreasing direct ownership by 1% to 1,081,363 units (SEC Form 4)

Chief Commercial Officer Ramasamy Govindaraj disposed of $26,211 worth of shares (6,515 units at $4.02), decreasing direct ownership by 1% to 600,590 units (SEC Form 4) to satisfy withholding obligation

Chief Accounting Officer. Standley Greg disposed of $16,123 worth of shares (3,981 units at $4.05), decreasing direct ownership by 2% to 257,299 units (SEC Form 4) (for tax liability)

Chief Legal&Compliance Officer Oxholm Jose Miguel disposed of $46,575 worth of shares (11,576 units at $4.02), decreasing direct ownership by 1% to 811,794 units (SEC Form 4) (for withholding tax)

Chief Technology Officer Mook Joshua T. disposed of $27,340 worth of shares (6,803 units at $4.02), decreasing direct ownership by 0.61% to 1,107,306 units (SEC Form 4) to cover taxes

Chief Financial Officer Panzer Jon disposed of $32,469 worth of shares (8,065 units at $4.03), decreasing direct ownership by 0.84% to 949,075 units (SEC Form 4) to satisfy tax liability

Chief Executive Officer Healy Thomas J. disposed of $113,203 worth of shares (28,026 units at $4.04), decreasing direct ownership by 0.08% to 35,312,262 units (SEC Form 4) to cover taxes

SEC Form 4 filed by Hyliion Holdings Corp.

Chief Accounting Officer. Standley Greg disposed of $15,118 worth of shares (7,411 units at $2.04), decreasing direct ownership by 3% to 261,280 units (SEC Form 4)

Chief Commercial Officer Ramasamy Govindaraj disposed of $26,026 worth of shares (12,758 units at $2.04), decreasing direct ownership by 2% to 607,235 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel disposed of $50,796 worth of shares (24,900 units at $2.04), decreasing direct ownership by 3% to 823,370 units (SEC Form 4)

Chief Technology Officer Mook Joshua T. disposed of $30,225 worth of shares (14,816 units at $2.04), decreasing direct ownership by 1% to 1,114,109 units (SEC Form 4)

Chief Strategy Officer Lantz Cheri disposed of $34,068 worth of shares (16,700 units at $2.04), decreasing direct ownership by 2% to 730,204 units (SEC Form 4)

Chief Financial Officer Panzer Jon disposed of $34,313 worth of shares (16,820 units at $2.04), decreasing direct ownership by 2% to 957,140 units (SEC Form 4)

Chief Executive Officer Healy Thomas J. disposed of $119,314 worth of shares (58,202 units at $2.05), decreasing direct ownership by 0.16% to 35,340,288 units (SEC Form 4)

Director Trent Melanie Montague was granted 60,976 shares, increasing direct ownership by 39% to 218,774 units (SEC Form 4)

Director Knight Robert M Jr was granted 60,976 shares, increasing direct ownership by 19% to 375,345 units (SEC Form 4)

Director Gustanski Mary was granted 60,976 shares, increasing direct ownership by 31% to 256,379 units (SEC Form 4)

Director Freeland Richard Joseph was granted 60,976 shares, increasing direct ownership by 27% to 283,774 units (SEC Form 4)

Director Cubbage Vincent T. was granted 60,976 shares, increasing direct ownership by 6% to 1,092,863 units (SEC Form 4)

Director Craig Jeffrey A was granted 60,976 shares, increasing direct ownership by 18% to 402,845 units (SEC Form 4)

Director Boehm Rodger L was granted 60,676 shares, increasing direct ownership by 38% to 218,474 units (SEC Form 4)

Chief Accounting Officer. Standley Greg was granted 46,803 shares, increasing direct ownership by 21% to 268,691 units (SEC Form 4)

Chief Commercial Officer Ramasamy Govindaraj was granted 80,488 shares, increasing direct ownership by 15% to 619,993 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel was granted 95,122 shares, increasing direct ownership by 13% to 848,270 units (SEC Form 4)

Chief Technology Officer Mook Joshua T. was granted 95,122 shares, increasing direct ownership by 9% to 1,128,925 units (SEC Form 4)

Chief Financial Officer Panzer Jon was granted 100,610 shares, increasing direct ownership by 12% to 973,960 units (SEC Form 4)

Chief Executive Officer Healy Thomas J. was granted 296,342 shares, increasing direct ownership by 0.84% to 35,398,490 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel disposed of $4,414 worth of shares (2,480 units at $1.78), decreasing direct ownership by 0.33% to 753,148 units (SEC Form 4)

Chief Accounting Officer. Standley Greg disposed of $7,779 worth of shares (4,010 units at $1.94), decreasing direct ownership by 2% to 221,888 units (SEC Form 4)

Chief Commercial Officer Ramasamy Govindaraj disposed of $25,121 worth of shares (12,949 units at $1.94), decreasing direct ownership by 2% to 539,505 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel disposed of $45,439 worth of shares (23,422 units at $1.94), decreasing direct ownership by 3% to 755,628 units (SEC Form 4)

Chief Technology Officer Mook Joshua T. disposed of $25,121 worth of shares (12,949 units at $1.94), decreasing direct ownership by 1% to 1,033,803 units (SEC Form 4)

Chief Strategy Officer Lantz Cheri disposed of $30,353 worth of shares (15,646 units at $1.94), decreasing direct ownership by 2% to 746,904 units (SEC Form 4)

Chief Financial Officer Panzer Jon disposed of $31,894 worth of shares (16,440 units at $1.94), decreasing direct ownership by 2% to 873,350 units (SEC Form 4)

Chief Executive Officer Healy Thomas J. disposed of $261,828 worth of shares (134,963 units at $1.94), decreasing direct ownership by 0.38% to 35,102,148 units (SEC Form 4)

Chief Strategy Officer Lantz Cheri disposed of $5,022 worth of shares (2,700 units at $1.86), decreasing direct ownership by 0.35% to 762,550 units (SEC Form 4)

Chief Financial Officer Panzer Jon covered exercise/tax liability with 2,435 shares, decreasing direct ownership by 0.27% to 889,790 units (SEC Form 4)

Chief Accounting Officer. Standley Greg covered exercise/tax liability with 519 shares, decreasing direct ownership by 0.23% to 225,898 units (SEC Form 4)

Chief Technology Officer Mook Joshua T. was granted 540,541 shares and covered exercise/tax liability with 1,361 shares, increasing direct ownership by 106% to 1,046,752 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel disposed of $51,634 worth of shares (31,105 units at $1.66), decreasing direct ownership by 4% to 779,050 units (SEC Form 4)

Chief Strategy Officer Lantz Cheri disposed of $41,862 worth of shares (25,218 units at $1.66), decreasing direct ownership by 3% to 765,250 units (SEC Form 4)

Chief Executive Officer Healy Thomas J. disposed of $265,228 worth of shares (159,776 units at $1.66), decreasing direct ownership by 0.45% to 35,237,111 units (SEC Form 4)

Amendment: Chief Legal&Compliance Officer Oxholm Jose Miguel covered exercise/tax liability with 0 shares (SEC Form 4)

Amendment: Chief Strategy Officer Lantz Cheri covered exercise/tax liability with 0 shares (SEC Form 4)

Amendment: Chief Executive Officer Healy Thomas J. covered exercise/tax liability with 0 shares (SEC Form 4)

Chief Accounting Officer. Standley Greg covered exercise/tax liability with 2,275 shares, decreasing direct ownership by 0.99% to 226,417 units (SEC Form 4)

Chief Commercial Officer Ramasamy Govindaraj covered exercise/tax liability with 11,507 shares, decreasing direct ownership by 2% to 552,454 units (SEC Form 4)

Chief Technology Officer Mook Joshua T. covered exercise/tax liability with 11,507 shares and disposed of $15,005 worth of shares (9,039 units at $1.66), decreasing direct ownership by 4% to 507,572 units (SEC Form 4)

Chief Financial Officer Panzer Jon covered exercise/tax liability with 14,632 shares, decreasing direct ownership by 2% to 892,225 units (SEC Form 4)

Amendment: Chief Technology Officer Mook Joshua T. covered exercise/tax liability with 0 shares (SEC Form 4)

Chief Accounting Officer. Standley Greg covered exercise/tax liability with 1,264 shares, decreasing direct ownership by 0.55% to 228,692 units (SEC Form 4)

Chief Financial Officer Panzer Jon covered exercise/tax liability with 1,704 shares, decreasing direct ownership by 0.19% to 906,857 units (SEC Form 4)

Chief Accounting Officer. Standley Greg covered exercise/tax liability with 1,577 shares, decreasing direct ownership by 0.68% to 229,956 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel covered exercise/tax liability with 3,357 shares, decreasing direct ownership by 0.42% to 797,582 units (SEC Form 4)

Chief Strategy Officer Lantz Cheri covered exercise/tax liability with 2,529 shares, decreasing direct ownership by 0.32% to 780,273 units (SEC Form 4)

Chief Financial Officer Panzer Jon covered exercise/tax liability with 2,435 shares, decreasing direct ownership by 0.27% to 908,561 units (SEC Form 4)

Chief Accounting Officer. Standley Greg covered exercise/tax liability with 519 shares, decreasing direct ownership by 0.22% to 231,533 units (SEC Form 4)

Chief Technology Officer Mook Joshua T. covered exercise/tax liability with 1,361 shares, decreasing direct ownership by 0.26% to 519,688 units (SEC Form 4)

Chief Legal&Compliance Officer Oxholm Jose Miguel covered exercise/tax liability with 12,573 shares, decreasing direct ownership by 2% to 800,939 units (SEC Form 4)