HYLN SEC filings, in plain English
Everything Tortoise Acquisition Corp. has filed with the SEC that we hold — 40 filings, newest first, 4 with a plain-English summary of what changed and why it matters. Every row links to the primary document on EDGAR, so you can check the source rather than trust us.
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What changed: The 10-Q filed under Commission file number 001-38823 is that of Hyliion Holdings Corp. (NYSE American: HYLN) for the quarter ended June 30, 2026, with 178,597,218 shares outstanding as of August 3, 2026. Revenue, entirely from research and development services, was $4,944 thousand for the quarter against $1,515 thousand a year earlier and $7,776 thousand for the six months against $2,004 thousand, producing gross profit of $366 thousand. Why it matters: Cash and investments total $132.4 million against $10.1 million of total liabilities and a net cash burn of about $12.6 million a quarter — the company is funded for years at this rate but is spending $15.7 million of operating expense to earn $4.9 million of research-service revenue at a 7% gross margin. Nothing in the results comes from product sales.
What changed: Hyliion reported Q2 2026 revenue of $4.9M (up from $1.5M YoY) and a net loss of $13.9M; cash and equivalents fell to $13.2M from $22.9M at YE 2025, though short- and long-term investments totaled $119.2M. Why it matters: The company is burning ~$19.8M in operating cash semi-annually but retains ~$132M in total liquid assets, providing a multi-quarter runway; R&D services revenue is growing but remains far below operating expense levels.
What changed: Hyliion Holdings Corp., the Tortoise Acquisition Corp. successor, announced on July 22, 2026 that the Office of Naval Research awarded it a cost-plus-fixed-fee contract with a total value of approximately $42 million for the HELMUR megawatt-scale power generation units programme. Hyliion will design, build, test and deliver 2-megawatt and 3-megawatt units and advance core technology, alternative components to reduce magnet supply risk and additive manufacturing. Work runs in Cedar Park, Texas over a 36-month base period with no options, completing by July 2029, fully funded at award. Why it matters: For a pre-revenue de-SPAC, a $42 million contract that is already fully obligated at award using fiscal 2025 and 2026 Navy appropriations is materially better than a framework agreement — the funding does not depend on future appropriations. Cost-plus-fixed-fee also transfers development cost risk to the customer, which is the opposite of the fixed-price commercial programmes that have consumed cash at similar companies. The 36-month base with no options caps the visibility at July 2029.
What changed: Hyliion Holdings Corp., the successor to Tortoise Acquisition Corp., called its annual meeting for Tuesday, May 19, 2026 at 12:00 p.m. Central Time in a virtual format, record date March 25, 2026, with ratification of Grant Thornton as independent auditors among the proposals under NYSE American rules. The pay-versus-performance table reports a 2025 net loss of $57,188 thousand with total shareholder return of $78.63 per $100 invested, against a 2024 net loss of $52,048 thousand and TSR of $111.54. Why it matters: Total shareholder return fell from $111.54 to $78.63 in a year while the annual net loss widened to $57.2 million - the burn is increasing and the market is marking it down. For a company that de-SPAC'd on a powertrain thesis it has since abandoned, that burn is now funding a different business entirely. The Tortoise trust was released at closing, so cash on the balance sheet, not a trust, is the only support beneath the shares.
In plain English
Redemption deadlinethe last day to hand shares back for cash
Set by the filing that calls the meeting. Tender after it and the company is under no obligation to pay you the trust value.
Cash in trust / trust per sharethe cash the company is holding for each public share
Filed quarterly in the 10-Q's XBRL. It earns interest between filings, so the figure on a given day is slightly higher than the last filed one — where we show that we label it an estimate.
Accession numberthe SEC's unique id for one filing
Every figure on this page carries the accession of the filing that states it, so you can open the primary document rather than trust us.