UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 13 20, 2025

HYLIION HOLDINGS CORP.

(Exact name of registrant as specified in its charter)

Delaware

001-38823

83-2538002

~~001-38823~~

~~83-2538002~~

(State or Other Jurisdictionof Incorporation)

(Commission File Number)

(I.R.S. EmployerIdentification No.)

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(I.R.S. Employer Identification No.)

1202 BMC Drive, Suite 100Cedar Park,TX		78613
1202 BMC Drive, Suite 100 Cedar Park,TX	78613
(Address of principal executive offices)	(Zip Code)	~~(Zip Code)~~

(833) ~~495~~49w5-4466

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions:

o ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240-13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading symbol(s)		Name of each exchange on which registered
Common Stock, $0.0001 par value per share		HYLN		NYSE American LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b–2 of the Securities Exchange Act of 1934 (§240.12b–2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2 5.~~02 Results~~07 Submission of ~~Operations~~Matters ~~and~~to ~~Financial~~a ~~Condition~~Vote of Security Holders.

OnThe ~~May 13,~~ 2025, ~~Hyliion~~Annual ~~Holdings~~Meeting ~~Corp.~~of Stockholders (the “~~Company~~Annual Meeting”) of ~~issued~~Hyliion aHoldings ~~press~~Corp. ~~release~~(“Hyliion” ~~announcing~~or ~~certain~~the ~~financial~~“Company”) ~~and~~was ~~other~~held ~~results~~on ~~for~~May ~~the quarter ended March 31~~20, 2025. ~~The~~At ~~full text of~~ the ~~press~~Annual ~~release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.~~Meeting:

~~The~~● ~~information~~Stockholders ~~furnished~~elected ~~in this Current Report on Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of~~ the ~~Securities~~two ~~Exchange~~nominees ~~Act~~recommended ofby ~~1934, as amended (~~the ~~“Exchange~~Company’s ~~Act”),~~board ~~or otherwise subject to the liabilities~~ of ~~that~~directors ~~Section, nor shall it be deemed~~ to beserve ~~incorporated~~as byClass ~~reference~~II ~~into~~directors ~~any filing~~ of the Company ~~under~~until the ~~Securities~~2028 ~~Act~~Annual Meeting of ~~1933,~~Stockholders ~~as amended,~~ or ~~the~~until ~~Exchange~~their ~~Act,~~respective ~~except~~successors asare ~~expressly~~elected ~~set~~and ~~forth by specific reference in such filing.~~qualified;

~~Item 9.01 Financial~~● ~~Statements~~Stockholders ~~and~~ratified ~~Exhibits.~~the selection of Grant Thornton LLP (the “Auditor”) to serve as the independent registered public accounting firm of the Company for the 2025 fiscal year ended December 31, 2025; and

● Stockholders approved, on an advisory basis, the compensation of the Company’s named executive officers (d“Say on Pay”)~~Exhibits~~.

Exhibit No.						Description
99.1						Press Release dated May 13, 2025.
104						Cover Page Interactive Data File (embedded within the Inline XBRL document).

Set forth below, with respect to each such matter, are the number of votes cast for or against/withhold, the number of abstentions and the number of broker non-votes.

~~SIGNATURES~~Election of Directors

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused the report to be signed on its behalf by the undersigned hereunto duly authorized.

Nominee	For		Withhold		Broker Non-Votes
Jeffrey Craig		72,112,874		8,246,830		45,325,540
Richard Freeland		79,034,758		1,324,946		45,325,540

		HYLIION HOLDINGS CORP.
		By:	/s/ Thomas Healy
Date:	May 13, 2025		Thomas Healy
			Chief Executive Officer

Ratification of Auditor

For		Against		Abstain
124,912,577		480,647		292,020

Say on Pay

For		Against		Abstain		Broker Non-Votes
75,455,210		4,482,136		422,358		45,325,540

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused the report to be signed on its behalf by the undersigned hereunto duly authorized.

	HYLIION HOLDINGS CORP.

	By:	/s/ Thomas Healy
Date: May 21, 2025		Thomas Healy
		Chief Executive Officer

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