Hyliion legal chief sells 11.9K shares for tax withholding

Hyliion Holdings Corp. (HYLN) reported an insider equity-related transaction by Chief Legal & Compliance Officer Jose Miguel Oxholm.

Rhea-AI Filing Summary

Hyliion Holdings Corp. (HYLN) reported an insider equity-related transaction by Chief Legal & Compliance Officer Jose Miguel Oxholm. On 2026-08-21, 11,980 shares of common stock were disposed of at $3.33 per share in a transaction coded "J". According to the award agreement, these shares were sold at the issuer's direction to cover the reporting person's tax withholding obligations, with the decision to sell at the sole discretion of Hyliion. Following this transaction, Oxholm directly holds 799,814 shares of Hyliion common stock.

Insider Trade Summary

Other: 11,980 shares

Other 1 txn

Insider Oxholm Jose Miguel

Role Chief Legal&Compliance Officer

Type	Security	Shares	Price	Value
Other	Common Stock F1	11,980	$3.33	$40K

Holdings After Transaction: Common Stock — 799,814 shares (Direct)

Footnotes (1)

1. F1. These shares were sold at the direction of the issuer under the terms of the issuer's award agreement with the reporting person. Under the award agreement, the decision to sell shares to cover the reporting person's tax withholding obligations is at the sole discretion of the issuer.

Key Figures

Shares disposed: 11,980 shares Transaction price per share: $3.33 per share Shares held after transaction: 799,814 shares

3 metrics

Shares disposed 11,980 shares Common Stock transaction coded "J" on 2026-08-21

Transaction price per share $3.33 per share Price for the 11,980-share disposition on 2026-08-21

Shares held after transaction 799,814 shares Direct holdings of Jose Miguel Oxholm following the transaction

Key Terms

award agreement, tax withholding obligations, transaction code "J"

3 terms

award agreement financial

"under the terms of the issuer's award agreement with the reporting person"

An award agreement is a legal contract that spells out the terms of a pay or equity grant—such as stock options, restricted shares, or cash bonuses—given to an employee, director or consultant. It describes what is being granted, any conditions for keeping it (for example, earning it over time or meeting performance targets), and what happens if the person leaves or breaks rules. Investors care because these agreements affect company costs, potential share dilution and how executives are motivated and rewarded.

tax withholding obligations financial

"to cover the reporting person's tax withholding obligations"

transaction code "J" regulatory

"transaction coded "J""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Hyliion (HYLN) disclose for Jose Miguel Oxholm?

Hyliion disclosed that Chief Legal & Compliance Officer Jose Miguel Oxholm had 11,980 shares of common stock disposed of on 2026-08-21 in a Form 4 transaction coded "J".

At what price were the Hyliion (HYLN) shares transacted in this Form 4 filing?

The Form 4 reports that 11,980 shares of Hyliion common stock were transacted at $3.33 per share on 2026-08-21.

How many Hyliion (HYLN) shares does Jose Miguel Oxholm hold after this transaction?

After the reported transaction, Chief Legal & Compliance Officer Jose Miguel Oxholm directly holds 799,814 shares of Hyliion common stock.

Why were Jose Miguel Oxholm’s Hyliion (HYLN) shares sold in this Form 4 event?

The footnote states the shares were sold at the direction of Hyliion under the issuer's award agreement to cover Oxholm’s tax withholding obligations, with the decision to sell at the issuer’s sole discretion.

Was the Hyliion (HYLN) insider transaction part of a Rule 10b5-1 plan?

The filing’s 10b5-1 checkbox is not affirmed (aff_10b5_one is false), and the footnotes do not state that the transaction was made pursuant to a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/21/2026 - 04:51 PM EDT Accepted by SEC EDGAR 08/21/2026 - 04:51 PM EDT 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^*

Oxholm Jose Miguel

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal&Compliance Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2026

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	08/21/2026		J(1)		11,980	D	$3.33	799,814	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:

1. These shares were sold at the direction of the issuer under the terms of the issuer's award agreement with the reporting person. Under the award agreement, the decision to sell shares to cover the reporting person's tax withholding obligations is at the sole discretion of the issuer.

Remarks:

	/s/ Jose Miguel Oxholm	08/21/2026
	** 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)