Welcome to our dedicated page for Hyliion Holdings Corporation SEC filings (Ticker: HYLN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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.
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.
Jon Panzer, Chief Financial Officer of Hyliion Holdings Corp. (HYLN), reported two small share dispositions tied to restricted stock unit vesting. The Form 4 shows that on 08/12/2025 he disposed of 6,271 shares at $1.69 each and on 08/13/2025 he disposed of 5,226 shares at $1.66 each. Following those transactions his beneficial ownership declined from 922,493 to 910,996 shares, reflecting shares withheld to cover taxes associated with the vesting and distribution of restricted stock units. The filing is signed by Mr. Panzer on 08/14/2025.
Hyliion Holdings Corp. reported modest R&D services revenue of $1.5 million for the quarter and $2.0 million for the six months ended June 30, 2025, while recording a net loss of $13.4 million for the quarter and $30.7 million year-to-date. Research and development expense rose to $10.1 million in the quarter and $22.4 million for six months as the company advanced development and production activities for its KARNO Power Module.
The balance sheet shows $15.6 million in cash and cash equivalents and held-to-maturity investments with a fair value of approximately $170.0 million, which management states is sufficient to fund operations for the next twelve months. The company continues the approved wind-down of its powertrain business while focusing on KARNO commercialization, noting delivery of two early-adopter units and ongoing R&D under a Department of the Navy agreement originally awarded for up to $16.0 million with $15.2 million of remaining potential revenue as of June 30, 2025.
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.