Joshua T. Mook - 25 Aug 2025 Form 4/A - Amendment Insider Report for Hyliion Holdings Corp. (HYLN)

Role
Chief Technology Officer
Signature
/s/ Joshua T. Mook
Issuer symbol
HYLN
Transactions as of
25 Aug 2025
Transactions value $
$0
Form type
4/A - Amendment
Date filed
17 Nov 2025, 19:27
Date Of Original Report
25 Aug 2025
Previous filing
28 May 2025
Next filing
29 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
MOOK JOSHUA T. Chief Technology Officer C/O HYLIION HOLDING CORP., 1202 BMC DRIVE, SUITE 100, CEDAR PARK /s/ Joshua T. Mook 2025-11-17 0002011297

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction HYLN Common Stock Tax liability $0 0 0% $0.00 529K 25 Aug 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This Amended Form 4 has been filed to delete a reference to shares withheld to satisfy taxes on the reporting person's Form 4 filed with the SEC on August 25, 2025. The shares were initially reported as withheld as a result of an administrative error by the issuer's third party service provider. No shares were withheld on August 25, 2025 and Column 5 of Table 1 has been revised accordingly.