Hyliion insider report: Ramasamy disposes 9,041 shares for tax withholding

Rhea-AI Filing Summary

Govindaraj Ramasamy, Chief Commercial Officer of Hyliion Holdings Corp. (HYLN), reported routine dispositions of company common stock tied to restricted stock unit (RSU) vesting. On 08/12/2025 he disposed of 4,931 shares at $1.69 per share and on 08/13/2025 he disposed of 4,110 shares at $1.66 per share. The filing shows shares were withheld to satisfy a tax liability arising from the vesting and distribution of RSUs, not open-market selling for other purposes.

Following the 08/12 transaction his beneficial ownership was 568,071 shares and after the 08/13 transaction it was 563,961 shares. The Form 4 was signed on 08/14/2025 and is filed as a single-person report.

Positive

• Transparent disclosure of transaction dates, prices, and share counts on Form 4
• Clear explanation that shares were withheld to satisfy tax liabilities from RSU vesting
• Timely filing with signature dated 08/14/2025 indicating compliance

Negative

• None.

Insights

Securities Analyst

TL;DR: Officer reported small RSU-related share withholdings, indicating tax-related dispositions rather than strategic selling.

The two reported dispositions—4,931 shares at $1.69 and 4,110 shares at $1.66—are explicitly described as shares withheld to cover tax obligations from RSU vesting. The transactions reduced beneficial ownership modestly to 563,961 shares. This pattern is common when companies distribute RSUs and does not alone indicate a change in insider conviction or signal material corporate developments. For investors, the amounts are small relative to total insider holdings and are properly documented on Form 4.

Corporate Governance Expert

TL;DR: Filing documents compliant, routine tax-withholding events with transparent reporting.

The Form 4 identifies the reporting person, role (Chief Commercial Officer), transaction dates, prices, and a clear explanation: shares were withheld to satisfy tax liabilities from RSU vesting. The prompt filing and signature on 08/14/2025 reflect standard compliance with Section 16 reporting. There is no indication of undisclosed arrangements or other derivative activity in this filing.

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

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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^*

RAMASAMY GOVINDARAJ

(Last) (First) (Middle)

C/O HYLIION HOLDING CORP.

1202 BMC DRIVE, SUITE 100

(Street)

CEDAR PARK TX 78613

(City) (State) (Zip)

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 Commercial Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2025

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

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

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

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	08/12/2025		F(1)		4,931	D	$1.69	568,071	D
Common Stock	08/13/2025		F(1)		4,110	D	$1.66	563,961	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. Shares withheld for the payment of a tax liability related to the vesting and distribution of restricted stock units.

Remarks:

	/s/ Govindaraj Ramasamy	08/14/2025
	** 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.

FAQ

What transactions did the HYLN reporting person make on Form 4?

The filing reports dispositions of 4,931 shares on 08/12/2025 at $1.69 and 4,110 shares on 08/13/2025 at $1.66.

Why were shares disposed by Govindaraj Ramasamy according to the Form 4?

The Form 4 states shares were withheld to pay a tax liability related to the vesting and distribution of restricted stock units (RSUs).

How many shares did the reporting person beneficially own after the reported transactions?

Following the 08/12 transaction ownership was 568,071 shares and after the 08/13 transaction it was 563,961 shares.

What is Govindaraj Ramasamy's role at Hyliion (HYLN)?

The Form 4 identifies him as Chief Commercial Officer and an officer of the issuer.

Was this Form 4 filed jointly or by one reporting person?

The metadata indicates the Form was filed by one reporting person.