Hyliion Holdings Corp.

Last updated September 27, 2026

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Organization details

Legal name: Hyliion Holdings Corp.
Former names: Tortoise Acquisition Corp.
Ownership: Public
Status: Active
Sector (GICS): Consumer Discretionary
SIC code: 3713 — Truck & Bus Bodies
Jurisdiction of incorporation: Delaware
Headquarters city: Cedar Park
Headquarters state / province: Texas
Headquarters country: United States
Fiscal year end: December
Ticker symbol: HYLN
Primary stock exchange: NYSE American

Identifiers

SEC CIK: 0001759631

Board of directors

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Andrew H. Card Jr. · Director
Since 2023
Elaine L. Chao · Director
Since 2023
Howard M. Jenkins · Director
Since 2023
Jeffrey A. Craig · Director
Since 2023
Mary Gustanski · Director
Since 2023
Melanie Montague Trent · Director
Since 2023
Richard Joseph Freeland · Director
Since 2023
Robert M. Knight Jr. · Director
Since 2023
Rodger L. Boehm · Director
Since 2023
Stephen S. Pang · Director
Since 2023
Thomas J. Healy · Director · Chief Executive Officer
Since 2023
Vincent T. Cubbage · Director
Since 2023

Chief executives

Thomas J. Healy · Chief Executive Officer

Dates unknown

Director election results

Annual meeting of May 19, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

9 of this board's directors also sit on 12 other boards. 1 is in the same sector.

Shared director Other board Same sector

Arcosa Inc.
via Jeffrey A. Craig and Melanie Montague Trent
EGH Acquisition Corp.
via Stephen S. Pang and Vincent T. Cubbage
Amprius Technologies Inc.
via Mary Gustanski
Baxter International Inc.
via Jeffrey A. Craig
ChargePoint Holdings Inc.
via Elaine L. Chao
Cooper-Standard Holdings Inc. Same sector
via Richard Joseph Freeland
Diamondback Energy Inc.
via Melanie Montague Trent
FreightCar America Inc.
via Rodger L. Boehm
Mobileye Global Inc.
via Elaine L. Chao
Schneider National Inc.
via Robert M. Knight Jr.
The Kroger Company
via Elaine L. Chao
Valvoline Inc.
via Richard Joseph Freeland

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $170,000; 1 purchase by 1 insider
Sold, last 12 months: $0; 0 sales by 0 insiders

Date	Insider	Transaction	Shares	Price	Value
Sep 30, 2026	Vincent T. Cubbage Director	Gift	−5,750	—	—
Sep 30, 2026	Thomas J. Healy Director, Officer (Chief Executive Officer), 10% owner	Derivative conversion	+202,033	—	—
Sep 30, 2026	Panzer Jon Officer (Chief Financial Officer)	Derivative conversion	+59,210	—	—
Sep 30, 2026	MOOK JOSHUA T. Officer (Chief Technology Officer)	Derivative conversion	+55,981	—	—
Sep 30, 2026	Oxholm Jose Miguel Officer (Chief Legal&Compliance Officer)	Derivative conversion	+52,392	—	—
Sep 30, 2026	Standley Greg Officer (Chief Accounting Officer.)	Derivative conversion	+16,633	—	—
Sep 30, 2026	Thomas J. Healy Director, Officer (Chief Executive Officer), 10% owner	Derivative conversion	+222,256	—	—
Sep 30, 2026	Panzer Jon Officer (Chief Financial Officer)	Derivative conversion	+75,457	—	—
Sep 30, 2026	MOOK JOSHUA T. Officer (Chief Technology Officer)	Derivative conversion	+71,341	—	—
Sep 30, 2026	Oxholm Jose Miguel Officer (Chief Legal&Compliance Officer)	Derivative conversion	+71,341	—	—
Sep 30, 2026	Standley Greg Officer (Chief Accounting Officer.)	Derivative conversion	+17,550	—	—
Sep 21, 2026	Oxholm Jose Miguel Officer (Chief Legal&Compliance Officer)	Gift	−50,000	—	—
Aug 27, 2026	Vincent T. Cubbage Director	Open-market purchase	+50,000	$3.40	$170,000
Aug 21, 2026	Panzer Jon Officer (Chief Financial Officer)	Other	−13,595	$3.32	$45,135
Aug 21, 2026	MOOK JOSHUA T. Officer (Chief Technology Officer)	Other	−10,700	$3.33	$35,631

Peers

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Questions about Hyliion Holdings Corp.

Who is the CEO of Hyliion Holdings Corp.?

Thomas J. Healy is Hyliion Holdings Corp.'s Chief Executive Officer.

How many directors are on Hyliion Holdings Corp.'s board?

Hyliion Holdings Corp.'s board has 12 directors: Andrew H. Card Jr., Elaine L. Chao, Howard M. Jenkins, Jeffrey A. Craig, Mary Gustanski, Melanie Montague Trent, Richard Joseph Freeland, Robert M. Knight Jr., Rodger L. Boehm, Stephen S. Pang and 2 others.

Are Hyliion Holdings Corp. insiders buying or selling shares?

Over the last 12 months, Hyliion Holdings Corp. insiders bought $170,000 of shares in 1 purchase and made no open-market sales on the open market, as reported to the SEC on Forms 4 and 5.

How is Hyliion Holdings Corp. connected to…? → Spot something wrong? Report a correction

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