| 2023-12-20 | +30.8% | legal | SEC EDGAR | HYLN 8-K: 8.01 and (SEC Filing) |
| 2024-05-01 | +28.8% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-05-14 | -24.7% | earnings | Seeking Alpha | Hyliion Holdings Corp. 2025 Q1 - Results - Earnings Call Presentation |
| 2025-05-14 | -24.7% | earnings | Seeking Alpha | Hyliion reiterates $10M-$15M 2025 revenue guidance as KARNO commercialization remains on track |
| 2025-05-14 | -24.7% | earnings | Seeking Alpha | Hyliion Holdings Corp. (HYLN) Q1 2025 Earnings Conference Call Transcript |
| 2025-11-12 | -21.3% | news | Seeking Alpha | Hyliion signals steady pace toward 2026 KARNO commercialization amid strong customer demand and supply chain vigilance |
| 2025-11-12 | -21.3% | earnings | Seeking Alpha | Hyliion Holdings Corp. (HYLN) Q3 2025 Earnings Call Transcript |
| 2025-11-12 | -21.3% | earnings | Seeking Alpha | Hyliion Holdings Corp. 2025 Q3 - Results - Earnings Call Presentation |
| 2025-11-12 | -21.3% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-11-12 | -21.3% | news | Benzinga | What's Going On With Hyliion Shares Wednesday? - Hyliion Holdings (AMEX:HYLN) - Benzinga |
| 2024-02-13 | +18.0% | legal | SEC EDGAR | HYLN 8-K: 5.02 (SEC Filing) |
| 2024-02-13 | +18.0% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2022-02-24 | +14.2% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2023-11-08 | -13.8% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2023-08-09 | -13.8% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-05-12 | +13.2% | earnings | Seeking Alpha | Hyliion Holdings Q1 Earnings Preview |
| 2025-05-13 | -13.1% | earnings | Seeking Alpha | Hyliion Holdings GAAP EPS of -$0.10 misses by $0.02, revenue of $0.5M misses by $0.6M |
| 2025-05-13 | -13.1% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-02-26 | -11.0% | earnings | Seeking Alpha | Hyliion Holdings Corp. (HYLN) Q4 2024 Earnings Conference Call Transcript |
| 2024-09-13 | +10.7% | news | Seeking Alpha | Hyliion Holdings: Still Early Innings For The Company's KARNO Generator Technology - Hold - Seeking Alpha |
| 2023-02-14 | +9.9% | legal | SEC EDGAR | HYLN 8-K: 8.01 (SEC Filing) |
| 2025-08-11 | +9.6% | earnings | Seeking Alpha | Hyliion Holdings Q2 Earnings Preview |
| 2025-08-11 | +9.6% | expansion | Yahoo Finance | US Navy Awards Hyliion (HYLN) $1.5 Million Contract for Multi-Megawatt Power Module - Yahoo Finance |
| 2021-11-10 | -9.2% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2024-11-05 | +8.9% | news | Business Wire | Hyliion Holdings Corp. Announces Transfer of Stock Listing to NYSE American - Business Wire |
| 2025-07-17 | +8.7% | expansion | Seeking Alpha | Hyliion secures $1.5M contract from U.S. Navy |
| 2025-07-17 | +8.7% | expansion | Stock Titan | Hyliion Awarded U.S. Navy Contract to Advance Multi-Unit KARNO Power Module - Stock Titan |
| 2025-11-11 | -8.1% | earnings | Seeking Alpha | Hyliion Holdings GAAP EPS of -$0.08 beats by $0.01, revenue of $0.8M misses by $0.85M |
| 2025-11-11 | -8.1% | earnings | Benzinga | Hyliion Stock Stumbles On Mixed Q3 Earnings Results - Hyliion Holdings (AMEX:HYLN) - Benzinga |
| 2025-11-11 | -8.1% | earnings | Yahoo Finance | Hyliion Holdings Corp. (HYLN) Reports Q3 Loss, Misses Revenue Estimates - Yahoo Finance |
| 2025-11-11 | -8.1% | news | Business Wire | Hyliion Holdings Reports Third-quarter 2025 Financial Results - Business Wire |
| 2023-02-21 | -8.0% | legal | SEC EDGAR | HYLN 8-K: 8.01 (SEC Filing) |
| 2026-02-25 | +7.8% | earnings | GuruFocus.com | Hyliion Holdings Corp (HYLN) Q4 2025 Earnings Call Highlights: Navigating Financial Challenges ... |
| 2026-02-25 | +7.8% | earnings | Moby | Hyliion Holdings Corp. Q4 2025 Earnings Call Summary |
| 2026-02-25 | +7.8% | earnings | Zacks | Hyliion Holdings Corp. (HYLN) Reports Q4 Loss, Misses Revenue Estimates |
| 2026-02-25 | +7.8% | earnings | Seeking Alpha | Hyliion sees $10M 2026 revenue with KARNO commercialization and military contracts while advancing modular platform |
| 2026-02-25 | +7.8% | earnings | Seeking Alpha | Hyliion Holdings Corp. (HYLN) Q4 2025 Earnings Call Transcript |
| 2026-02-25 | +7.8% | earnings | Seeking Alpha | Hyliion Holdings Corp. 2025 Q4 - Results - Earnings Call Presentation |
| 2026-02-25 | +7.8% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2021-08-11 | -7.6% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2022-02-01 | -7.5% | legal | SEC EDGAR | HYLN 8-K: 5.02 and (SEC Filing) |
| 2021-08-16 | -7.4% | legal | SEC EDGAR | HYLN 8-K: 5.02 (SEC Filing) |
| 2023-05-09 | +7.4% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-01-07 | -7.1% | news | Seeking Alpha | Hyliion Stock: New Product, Same Problems (NYSE:HYLN) - Seeking Alpha |
| 2024-04-04 | -6.9% | legal | SEC EDGAR | HYLN 8-K: 8.01 and (SEC Filing) |
| 2025-05-20 | -6.2% | news | Seeking Alpha | Hyliion: Production Challenges Could Impact KARNO Commercialization Efforts - Hold |
| 2025-05-20 | -6.2% | news | Seeking Alpha | Hyliion: Production Challenges Could Impact KARNO Commercialization Efforts - Hold (HYLN) - Seeking Alpha |
| 2021-05-12 | -6.0% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2023-03-17 | -5.5% | legal | SEC EDGAR | HYLN 8-K: 5.02 (SEC Filing) |
| 2024-08-06 | -5.0% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2022-05-20 | -4.7% | legal | SEC EDGAR | HYLN 8-K: 5.02 (SEC Filing) |
| 2025-08-12 | +4.3% | earnings | Seeking Alpha | Hyliion Holdings GAAP EPS of -$0.08 beats by $0.01, revenue of $1.52M misses by $0.08M |
| 2025-08-12 | +4.3% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-08-12 | +4.3% | earnings | Yahoo Finance | What To Expect From Hyliion Holdings Corp (HYLN) Q2 2025 Earnings - Yahoo Finance |
| 2022-12-21 | -4.1% | legal | SEC EDGAR | HYLN 8-K: 5.02 (SEC Filing) |
| 2024-11-14 | -4.0% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-08-25 | +4.0% | news | Seeking Alpha | Hyliion: The Recent Rebound Seems Unwarranted |
| 2025-08-25 | +4.0% | news | Seeking Alpha | Hyliion: The Recent Rebound Seems Unwarranted (NYSE:HYLN) - Seeking Alpha |
| 2024-11-12 | -4.0% | analyst | TradingView | HYLN Forecast — Price Target — Prediction for 2027 - TradingView |
| 2024-03-04 | -3.7% | news | CNN | symbol__ Stock Quote Price and Forecast - CNN |
| 2026-02-11 | -3.7% | earnings | Business Wire | Hyliion Holdings Schedules Q4 and FY 2025 Financial Results Conference Call and Webcast for February 25, 2026 |
| 2023-02-28 | +3.7% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2022-11-06 | -3.4% | news | Stocktwits | Hyliion Holdings Corp (HYLN) News, Articles, Events & Latest Updates - Stocktwits |
| 2024-07-01 | -3.3% | news | London South East | Hyliion Holdings Corp Share Price (HYLN.US) - London South East |
| 2026-02-24 | -3.1% | news | Business Wire | Hyliion Holdings Reports Fourth-Quarter and Full-Year 2025 Financial Results |
| 2026-02-24 | -3.1% | earnings | GuruFocus.com | Hyliion Holdings Corp (HYLN) Q4 2025 Earnings Report Preview: What To Look For |
| 2026-02-24 | -3.1% | earnings | Seeking Alpha | Hyliion Holdings GAAP EPS of -$0.07 beats by $0.01, revenue of $0.71M misses by $0.54M |
| 2026-02-24 | -3.1% | earnings | Yahoo Finance | Hyliion Holdings Corp. (HYLN) Reports Q4 Loss, Misses Revenue Estimates - Yahoo Finance |
| 2026-02-24 | -3.1% | news | Business Wire | Hyliion Holdings Reports Fourth-Quarter and Full-Year 2025 Financial Results - Business Wire |
| 2026-02-24 | -3.1% | earnings | ChartMill | Hyliion Holdings Corp. (NYSEARCA:HYLN) Reports Narrower Q4 Loss, Misses Revenue Estimates - ChartMill |
| 2022-05-09 | -3.1% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2023-03-08 | -2.9% | legal | SEC EDGAR | HYLN 8-K: 8.01 (SEC Filing) |
| 2025-05-05 | -2.9% | earnings | Stock Titan | Hyliion Holdings to Reveal Q1 2025 Financial Performance: Clean Energy Tech Developer Sets May Earnings Date - Stock Titan |
| 2026-01-07 | +2.4% | news | Stock Titan | Modular power tech developer Hyliion to speak at Needham event - Stock Titan |
| 2021-08-24 | -2.4% | legal | SEC EDGAR | HYLN 8-K: 5.02 and (SEC Filing) |
| 2024-11-11 | +2.3% | news | TradingView | HYLN Stock Price and Chart — AMEX:HYLN - TradingView |
| 2025-06-25 | -2.3% | news | Seeking Alpha | Hyliion signs LOI with MMR Power Solutions to deploy KARNO power modules |
| 2021-05-11 | +2.2% | legal | SEC EDGAR | HYLN 8-K: 2.02 and 4.02 (SEC Filing) |
| 2026-04-07 | +2.1% | news | Stock Titan | Hyliion (NYSE: HYLN) plans 2026 virtual meeting, votes on equity plan share increase - Stock Titan |
| 2021-10-14 | +2.0% | legal | SEC EDGAR | HYLN 8-K: 5.02 and (SEC Filing) |
| 2022-09-12 | -2.0% | legal | SEC EDGAR | HYLN 8-K: 5.02 and (SEC Filing) |
| 2021-08-26 | +2.0% | legal | SEC EDGAR | HYLN 8-K: 5.02 and (SEC Filing) |
| 2025-05-04 | -1.9% | news | Intellectia AI | HYLN Forecast — Price Prediction for 2026. Should I Buy HYLN? - Intellectia AI |
| 2026-04-06 | -1.7% | news | Cổng thông tin điện tử tỉnh Lào Cai | Is Hyliion Holdings (HYLN) Stock Stronger Than Peers | Price at $1.70, Down 1.16% - AI Powered Stock Picks - Cổng thông tin điện tử tỉnh Lào Cai |
| 2026-01-28 | -1.6% | news | marketscreener.com | Hyliion: from disillusionment to a thermodynamic revolution? - marketscreener.com |
| 2022-08-25 | +1.5% | legal | SEC EDGAR | HYLN 8-K: 1.01, 3.02, 7.01 (SEC Filing) |
| 2025-11-14 | -1.4% | news | Seeking Alpha | Hyliion: More Hiccups, But Still Too Early To Throw In The Towel On KARNO - Hold |
| 2025-11-14 | -1.4% | news | Seeking Alpha | Hyliion: More Hiccups, But Still Too Early To Throw In The Towel On KARNO - Hold - Seeking Alpha |
| 2025-03-08 | -1.4% | news | Seeking Alpha | Hyliion: Aggressive KARNO Commercialization Timeline Amid Competitive Pressures - Hold |
| 2025-03-08 | -1.4% | news | Seeking Alpha | Hyliion: Aggressive KARNO Commercialization Timeline Amid Competitive Pressures - Hold - Seeking Alpha |
| 2026-03-26 | -1.3% | news | Seeking Alpha | Hyliion Holdings: KARNO Remains A Show Me Story - Hold |
| 2026-03-26 | -1.3% | news | Seeking Alpha | Hyliion Holdings: KARNO Remains A Show Me Story - Hold (NYSE:HYLN) - Seeking Alpha |
| 2024-11-28 | -1.2% | news | Seeking Alpha | Hyliion Holdings: AI Data Center Opportunity In Focus - Hold (NYSE:HYLN) - Seeking Alpha |
| 2025-11-27 | +1.1% | news | Yahoo Finance | What Makes Hyliion (HYLN) a New Buy Stock - Yahoo Finance |
| 2025-11-10 | +1.0% | earnings | Seeking Alpha | Hyliion Holdings Q3 2025 Earnings Preview |
| 2025-03-17 | +0.9% | news | Yahoo Finance | Why Hyliion Holdings (HYLN) Is Plunging in 2025? - Yahoo Finance |
| 2026-01-06 | +0.8% | news | Stock Titan | New shipboard power tech passes tough U.S. Navy stress test - Stock Titan |
| 2025-04-25 | -0.8% | news | Stock Titan | HYLN Stock Price, News & Analysis - Stock Titan |
| 2026-04-10 | +0.7% | news | Simply Wall St. | Promising Penny Stocks To Watch In April 2026 |
| 2026-02-23 | -0.7% | earnings | Seeking Alpha | Hyliion Holdings Q4 2025 Earnings Preview |
| 2022-09-27 | -0.7% | legal | SEC EDGAR | HYLN 8-K: 8.01 and (SEC Filing) |
| 2022-11-09 | -0.7% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-11-17 | +0.6% | news | Stock Titan | Hyliion (NYSE American: HYLN) Showcases KARNO Module with Fuel-Agnostic Switching - Stock Titan |
| 2025-04-01 | +0.5% | news | Yahoo Finance | Why Hyliion Holdings Corp (HYLN)is Plunging in 2025? - Yahoo Finance |
| 2025-02-25 | +0.4% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |
| 2025-08-13 | -0.4% | earnings | Seeking Alpha | Hyliion lowers 2025 revenue outlook to $5M-$10M as commercialization shifts to 2026, supported by 30% tax credit |
| 2025-08-13 | -0.4% | earnings | Seeking Alpha | Hyliion Holdings Corp. 2025 Q2 - Results - Earnings Call Presentation |
| 2025-08-13 | -0.4% | earnings | Seeking Alpha | Hyliion Holdings Corp. (HYLN) Q2 2025 Earnings Call Transcript |
| 2026-02-18 | +0.2% | news | Business Wire | Hyliion's KARNO Core Technology Successfully Completes Diesel Fuel Operation, Unlocking New Markets and Enhancing Energy Resiliency |
| 2026-02-18 | +0.2% | news | Stock Titan | Hyliion fuel-flex generator can switch to diesel when gas lines fail - Stock Titan |
| 2022-08-09 | -0.2% | legal | SEC EDGAR | HYLN 8-K: 2.02 and (SEC Filing) |