Hyliion Holdings Corp. planned insider sales
In the last twelve months insiders at Hyliion Holdings Corp. filed 20 Form 144 notices of planned sales, 874,138 shares worth $2.0 million at the time of filing, from 6 sellers. The latest, filed 21 August 2026: Govindaraj Ramasamy (officer), 7,000 shares worth $22,500, planned for around 21 August 2026 through UBS Financial Services Inc.
| Filed | Seller | Relationship | Shares | Value | Planned sale | Sold, per Form 4 | Broker | How acquired | Filing |
|---|---|---|---|---|---|---|---|---|---|
| 21 August 2026 | Govindaraj Ramasamy | Officer | 7,000 | $22,500 | 21 August 2026 | None on Form 4 yet | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 21 August 2026 | Jose Oxholm | Officer | 15,000 | $50,000 | 21 August 2026 | None on Form 4 yet | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 21 August 2026 | Joshua Mook | Officer | 15,000 | $50,000 | 21 August 2026 | None on Form 4 yet | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 21 August 2026 | Jon Panzer | Officer | 30,000 | $100,000 | 21 August 2026 | None on Form 4 yet | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 21 August 2026 | Thomas Healy | Officer, Director | 60,000 | $200,000 | 21 August 2026 | None on Form 4 yet | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 19 May 2026 | Joshua Mook | Officer | 15,000 | $61,000 | 19 May 2026 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 19 May 2026 | Jon Panzer | Officer | 15,000 | $61,000 | 19 May 2026 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 19 May 2026 | Govindaraj Ramasamy | Officer | 15,000 | $61,000 | 19 May 2026 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 19 May 2026 | Jose Oxholm | Officer | 15,000 | $61,000 | 19 May 2026 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 19 May 2026 | Thomas Healy | Officer | 30,000 | $125,000 | 19 May 2026 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 12 December 2025 | Govindaraj Ramasamy | Officer | 30,000 | $58,500 | 12 December 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 12 December 2025 | Joshua Mook | Officer | 32,000 | $62,400 | 12 December 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 12 December 2025 | Jon Panzer | Officer | 40,000 | $78,000 | 12 December 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 12 December 2025 | Jose Oxholm | Officer | 60,000 | $117,000 | 12 December 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 12 December 2025 | Thomas Healy | Officer | 220,000 | $432,000 | 12 December 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 3 December 2025 | Cheri Lantz | Officer | 50,000 | $100,000 | 3 December 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 17 November 2025 | Joshua Mook | Officer | 9,039 | $15,000 | 17 November 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 17 November 2025 | Cheri Lantz | Officer | 25,218 | $41,862 | 17 November 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 17 November 2025 | Jose Oxholm | Officer | 31,105 | $51,600 | 17 November 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
| 17 November 2025 | Thomas Healy | Officer | 159,776 | $265,000 | 17 November 2025 | No matching Form 4 sale | UBS Financial Services Inc | Employee Benefit | Form 144 |
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.