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BlackRock, Inc. reported beneficial ownership of common stock of Hyliion Holdings Corp. on a Schedule 13G. BlackRock beneficially owned 10,119,991 shares of Hyliion common stock, representing 5.7% of the outstanding class as of June 30, 2026.
BlackRock had sole voting power over 9,983,679 shares and sole dispositive power over all 10,119,991 shares, with no shared voting or dispositive power. Various underlying clients have the right to receive dividends or sale proceeds, but no single client holds more than five percent of Hyliion’s outstanding common shares.
Hyliion Holdings Corp. has been awarded a cost-plus-fixed-fee contract by the Office of Naval Research valued at approximately $42 million to support the High Efficiency/Low Maintenance Ultra Reliable ("HELMUR") Megawatt Scale Power Generation Units program. Hyliion will design, develop, build, test, and deliver 2‑megawatt and 3‑megawatt power generation units under this award.
The work will be performed primarily in Cedar Park, Texas and is expected to be completed by July 2029. The contract has a 36‑month base period with no option periods, funded using fiscal year 2025 and 2026 Navy Research, Development, Test and Evaluation appropriations and awarded under ONR’s Long Range Broad Agency Announcement BAA No. N00014-25-S-B001.
Hyliion Holdings Corp. Chief Executive Officer Thomas J. Healy transferred 2,500,000 shares of Common Stock as a bona fide gift to the TH 2026 Irrevocable Trust dated June 26, 2026. The filing states this was for estate planning purposes and that no payment or other consideration was received.
The trust’s beneficiaries are members of Healy’s family and future descendants. Healy is neither a trustee nor a beneficiary and does not have or share voting or investment power over the trust’s shares. Following the gift, he directly holds 32,812,262 shares of Common Stock.
Hyliion Holdings Corp. director Cubbage Vincent T. transferred 11,500 shares of Common Stock as a bona fide gift to family members. No funds were exchanged and no sale occurred in this transfer. After the gift, he directly holds 1,081,363 shares of Hyliion Common Stock.
Hyliion Holdings Corp. Chief Accounting Officer Greg Standley reported an administrative share transaction. On May 19, 2026, 3,981 shares of common stock were sold at $4.05 per share under the issuer’s award agreement to cover his tax withholding obligations at the issuer’s sole discretion. Following this, he directly holds 257,299 common shares, indicating a routine, tax-related adjustment rather than a discretionary market trade.
Hyliion Holdings Corp.'s Chief Commercial Officer, Ramasamy Govindaraj, had a total of 6,515 shares of common stock sold on his behalf over two days to cover tax withholding obligations tied to equity awards. The shares were sold at the issuer’s direction under an award agreement, not as discretionary market trades. Following these transactions, he directly holds 600,590 shares of Hyliion common stock.
Hyliion Holdings Corp.’s Chief Legal & Compliance Officer Jose Miguel Oxholm reported two issuer-directed transactions in common stock. On May 19, 8,550 shares at $4.06 per share and on May 20, 3,026 shares at $3.92 per share were sold at the issuer’s direction under an award agreement to cover his tax withholding obligations. The footnote explains that the decision to sell shares for taxes is at the sole discretion of the issuer, so these are not discretionary open‑market trades by the insider. After these transactions, Oxholm directly held 811,794 shares of Hyliion common stock.
Hyliion Holdings Corp.’s Chief Technology Officer, Joshua T. Mook, reported two small Form 4 transactions in common stock coded as “other acquisition or disposition.” On May 19 and May 20, a total of 6,803 shares were sold at prices of $4.06 and $3.92 per share. A footnote explains these shares were sold at the direction of the issuer under an award agreement to cover Mr. Mook’s tax withholding obligations, meaning they were mechanistic, compensation-related sales rather than discretionary trading. After these transactions, Mr. Mook directly holds 1,107,306 common shares, so the tax-related sales represent a small portion of his overall stake.
Hyliion Holdings Corp. Chief Financial Officer Jon Panzer reported two non-market transactions in company common stock. On May 19 and May 20, a total of 8,065 shares were sold at prices of $4.06 and $3.92 per share, respectively.
According to the award agreement, these sales were executed at the issuer’s direction solely to cover Panzer’s tax withholding obligations, rather than as discretionary trades. After these transactions, Panzer directly holds 949,075 shares of Hyliion common stock.
Hyliion Holdings Corp. Chief Executive Officer Thomas J. Healy reported two "other" transactions in Hyliion common stock. On May 19 and May 20, a total of 28,026 shares were sold at prices of $4.08 and $3.98 per share.
According to the disclosure, these shares were sold at the direction of Hyliion under the terms of its award agreement with Healy to cover his tax withholding obligations. After these transactions, Healy directly held about 35.3 million shares of Hyliion common stock, indicating the changes were small relative to his overall position.