Hyliion Holdings Corp. filings document formal disclosures for a developer of modular power plant technology centered on the KARNO™ generator platform. Recent Form 8-K reports furnish quarterly and annual results announcements, including management updates on KARNO development, testing, customer applications, military programs, and related business milestones.
The company’s proxy materials cover board matters, shareholder voting items, executive compensation, equity awards, pay-versus-performance tables, and governance disclosures. Together, these filings provide the regulatory record for Hyliion’s operating results, public-company governance, compensation structure, and capital-market communications as it develops distributed power-generation technology.
Hyliion Holdings Corp. filed a current report to furnish a press release announcing its financial and other results for the quarter ended June 30, 2025. The press release, dated August 12, 2025, is included as Exhibit 99.1 and is incorporated by reference.
The company clarifies that this information, including Exhibit 99.1, is furnished rather than filed under the Exchange Act, which limits certain legal liabilities and how it may be incorporated into other securities filings.
Jon Panzer, Chief Financial Officer of Hyliion Holdings Corp. (HYLN), filed a Form 4 reporting a transaction on 08/08/2025. The filing shows 741 shares were withheld to satisfy a tax liability related to the vesting and distribution of restricted stock units; the reported per-share amount associated with the transaction is $1.53.
After the withholding, Mr. Panzer is shown as directly beneficially owning 922,493 shares. The form contains no listed derivative transactions and is signed and dated 08/08/2025.
Hyliion Holdings Corp. insider Greg Standley, who serves as the companys Chief Accounting Officer and an officer of the issuer, reported a common stock transaction dated 08/06/2025. The Form 4 shows 6,307 shares were withheld to satisfy a tax liability arising from the vesting and distribution of restricted stock units, reported under transaction code F(1). The withholding used a per-share value of $1.51.
After the withholding, Mr. Standley beneficially owned 234,833 shares of Hyliion common stock on a direct basis. The filing shows no derivative transactions and was submitted by a single reporting person.