Hyliion director buys 50,000 shares at $3.40

Hyliion Holdings Corp. (HYLN) director Vincent T. Cubbage reported an open-market purchase of 50,000 shares of common stock on 2026-08-27 at $3.40 per share.

Rhea-AI Filing Summary

Hyliion Holdings Corp. (HYLN) director Vincent T. Cubbage reported an open-market purchase of 50,000 shares of common stock on 2026-08-27 at $3.40 per share. Following this transaction, he directly holds 1,131,363 shares of Hyliion common stock.

Insider Trade Summary

Net Buyer: 50,000 shares

Net Buy 1 txn

Insider Cubbage Vincent T.

Role Director

Bought 50,000 shs ($170K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	50,000	$3.40	$170K

Holdings After Transaction: Common Stock — 1,131,363 shares (Direct)

Key Figures

Shares purchased: 50,000 shares of Common Stock Purchase price per share: $3.40 per share Shares owned after transaction: 1,131,363 shares of Common Stock +1 more

4 metrics

Shares purchased 50,000 shares of Common Stock Open-market or private purchase on 2026-08-27

Purchase price per share $3.40 per share Price for the 50,000-share purchase on 2026-08-27

Shares owned after transaction 1,131,363 shares of Common Stock Direct ownership reported following the 2026-08-27 purchase

Net buy shares in filing 50,000 shares Net buy direction across all reported transactions

Key Terms

Form 4, non-derivative, open market or private transaction, direct ownership

4 terms

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

non-derivative financial

""transaction_type": "non-derivative""

open market or private transaction financial

""transaction_code_description": "Purchase in open market or private transaction""

direct ownership financial

""ownership_type": "direct""

FAQ

What insider transaction did HYLN director Vincent T. Cubbage report?

He reported a purchase of 50,000 shares of Hyliion common stock on 2026-08-27 in an open-market or private transaction at $3.40 per share.

How many HYLN shares does Vincent T. Cubbage own after this Form 4 transaction?

After the reported transaction, Vincent T. Cubbage directly holds 1,131,363 shares of Hyliion Holdings Corp. common stock, as stated in the Form 4.

Was the HYLN insider trade made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not checked, and there is no footnote indicating that the transaction was made pursuant to a Rule 10b5-1 or other pre-arranged trading plan.

What price did the HYLN director pay per share in the reported purchase?

The reported purchase price was $3.40 per share for Hyliion Holdings Corp. common stock, according to the Form 4 transaction data.

Is the reported HYLN transaction in common stock or derivatives?

The reported transaction involves Common Stock as a non-derivative security. The Form 4 shows no derivative transactions or derivative holdings for this filing.

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Available on EDGAR 08/27/2026 - 05:08 PM Accepted by SEC EDGAR 08/27/2026 - 05:07 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cubbage Vincent T.

(Last) (First) (Middle)

C/O HYLIION HOLDING CORP.

1202 BMC DRIVE, SUITE 100

(Street)

CEDAR PARK TEXAS 78613

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Hyliion Holdings Corp. [ HYLN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/27/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/27/2026		P		50,000	A	$3.4	1,131,363	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/ Vincent T. Cubbage	08/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)