| 2026-08-12 | Press release | Hyliion Holdings Schedules Q2 2026 Financial Results Conference Call and Webcast for August 12, 2026 |
| 2026-08-11 | Press release | Hyliion Holdings Reports Second-Quarter 2026 Financial Results |
| 2026-08-06 | Press release | Hyliion Awarded $41.7 Million U.S. Navy Contract to Scale Multi-Megawatt KARNO Power Modules |
| 2026-08-03 | Press release | Hyliion Successfully Demonstrates Multiple KARNO Power Modules Operating as a Single Scalable Power Plant |
| 2026-07-22 | Press release | Hyliion Awarded $41.7 Million U.S. Navy Contract for Megawatt-Scale KARNO Power Generation Systems |
| 2026-07-10 | Press release | Hyliion to Showcase KARNO Technology at 2026 Pennsylvania Defense and Innovation Summit |
| 2026-07-07 | Press release | Hyliion Appoints Defense Innovation Leader Abdul Subhani as Strategic Advisor |
| 2026-06-01 | Press release | Hyliion’s KARNO™ Power Module Named 2026 Most Valuable Product by Consulting-Specifying Engineer |
| 2026-05-19 | Press release | Hyliion Announces USX-1 Defiant USV as the Launch Platform for KARNO™ Core Sea Trials |
| 2026-05-13 | Earnings deck | Earnings Presentation
of Q1 2026, PDF file, (opens in new window) |
| 2026-05-13 | Press release | Hyliion Holdings Schedules Q1 2026 Financial Results Conference Call and Webcast for May 13, 2026 |
| 2026-05-11 | Press release | Hyliion Achieves True Fuel-Agnostic Performance with the Next-Generation Reactor Design |
| 2026-02-25 | Press release | Hyliion Holdings Schedules Q4 and FY 2025 Financial Results Conference Call and Webcast for February 25, 2026 |
| 2026-02-24 | Press release | Download , Hyliion Holdings Reports Fourth-Quarter and Full-Year 2025 Financial Results , 02/24/2026, (opens in new wind |
| 2026-02-24 | Press release | Hyliion Holdings Reports Fourth-Quarter and Full-Year 2025 Financial Results |
| 2026-02-18 | Press release | Hyliion's KARNO Core Technology Successfully Completes Diesel Fuel Operation, Unlocking New Markets and Enhancing Energy |
| 2026-01-16 | Press release | Hyliion Holdings to Present at the 2026 Needham Growth Conference on January 16, 2026 |
| 2026-01-06 | Press release | Hyliion Successfully Completes Mission-Representative U.S. Navy Load Profile with KARNO™ Power Module |
| 2025-11-17 | Press release | Hyliion Demonstrates Dynamic Fuel Switching in KARNO™ Power Module, Showcasing the Future of Flexible, Fuel Agnostic Pow |
| 2025-11-11 | Press release | Hyliion Holdings Reports Third-quarter 2025 Financial Results |
| 2025-10-29 | Press release | Hyliion Holdings Schedules Q3 2025 Financial Results Conference Call and Webcast for November 12, 2025 |
| 2025-10-29 | Press release | Hyliion Achieves 100 Days of Reliable Operation with KARNO™ Power Module on Customer Asset |
| 2025-10-22 | Press release | Hyliion Achieves Major Milestone With Successful Emission Testing of KARNO™ Power Module |
| 2025-09-17 | Press release | Hyliion Appoints New Vice President of Operations to Drive Manufacturing of the KARNO Power Module |
| 2025-09-16 | Press release | Hyliion Receives EPA Confirmation on KARNO™ Power Module Regulatory Pathway |
| 2025-08-12 | Press release | Hyliion Holdings Reports Second-Quarter 2025 Financial Results |
| 2025-07-23 | Press release | Hyliion’s KARNO Power Module Qualifies for a 30% Tax Credit Under “One Big Beautiful Bill Act” |
| 2025-06-25 | Press release | Hyliion Signs Letter of Intent with MMR Power Solutions to Deploy KARNO Power Modules for Stationary Applications |
| 2025-05-14 | Press release | Hyliion Holdings Schedules First-Quarter 2025 Financial Results Conference Call and Webcast for May 14, 2025 |
| 2025-05-12 | Press release | Hyliion Signs Letter of Intent with Mesa Natural Gas Solutions to Deploy 200 KW KARNO Power Module |
| 2025-04-14 | Press release | Hyliion to Unveil the KARNO Power Module at ACT Expo 2025 |
| 2025-02-26 | Press release | Hyliion Holdings Schedules Fourth-Quarter and Full-Year 2024 Financial Results Conference Call and Webcast for February |
| 2025-02-26 | Earnings deck | Q4 (opens in new window) |
| 2025-02-25 | Press release | Hyliion Holdings Reports Fourth-Quarter and Full-Year 2024 Financial Results |
| 2025-02-25 | Press release | Q4 (opens in new window) |
| 2024-12-23 | Press release | Hyliion Awarded $6 Million Federal Grant to Advance Methane Emission Reductions in the Oil and Gas Industry |
| 2024-11-15 | Earnings deck | Q3 (opens in new window) |
| 2024-11-14 | Press release | Q3 (opens in new window) |
| 2024-11-11 | Press release | Hyliion Successfully Showcases the KARNO Generator’s Uninterrupted Multi-Fuel Operation |
| 2024-09-27 | Press release | Hyliion’s KARNO Linear Generator Now Qualifies Under California’s Renewables Portfolio Standard (RPS) |