Joshua T. Mook
CIK: 0002011297
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Hyliion Holdings Corp.
Discretionary Trading P&L
Holdings
Transaction History (23 total)
- Sep 30, 2026HYLN
Hyliion Holdings Corp.
Conversion(C)Direct56K shares- - Sep 30, 2026HYLN
Hyliion Holdings Corp.
Conversion(C)Direct71.3K shares- - Aug 21, 2026HYLN
Hyliion Holdings Corp.
Other(J)Direct10.7K shares at avg. $3.33$36K - May 20, 2026HYLN
Hyliion Holdings Corp.
Other(J)Direct2K shares at avg. $3.92$8K - May 19, 2026HYLN
Hyliion Holdings Corp.
Other(J)Direct4.8K shares at avg. $4.06$19K - Mar 3, 2026HYLN
Hyliion Holdings Corp.
Other(J)Direct14.8K shares at avg. $2.04$30K - Feb 11, 2026HYLN
Hyliion Holdings Corp.
Award(A)Direct95.1K shares at avg. $2.05$195K - Dec 12, 2025HYLN
Hyliion Holdings Corp.
Other(J)Direct12.9K shares at avg. $1.94$25K - Nov 27, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct1.4K shares at avg. $1.85$3K - Nov 26, 2025HYLN
Hyliion Holdings Corp.
Award(A)Direct540.5K shares at avg. $1.85$1.0M - Nov 17, 2025HYLN
Hyliion Holdings Corp.
Other(J)Direct9K shares at avg. $1.66$15K - Nov 14, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct7.4K shares at avg. $1.70$13K - Nov 13, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct4.1K shares at avg. $1.68$7K - Aug 27, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct1.4K shares at avg. $1.69$2K - Aug 25, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct0 shares- - Aug 25, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct8.4K shares at avg. $1.77$15K - May 27, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct1.4K shares at avg. $1.14$2K - May 13, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct4.1K shares at avg. $1.91$8K - Feb 27, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct1.4K shares at avg. $1.61$2K - Feb 18, 2025HYLN
Hyliion Holdings Corp.
Award(A)Direct93.3K shares- - Feb 13, 2025HYLN
Hyliion Holdings Corp.
Tax Payment(F)Direct19.6K shares at avg. $2.14$42K - Dec 11, 2024HYLN
Hyliion Holdings Corp.
Conversion(C)Direct101.3K shares- - Nov 14, 2024HYLN
Hyliion Holdings Corp.
Conversion(C)Direct60.8K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 30, 2026 | HYLN Hyliion Holdings Corp. | Conversion(C) | 55,981 | - | $0 | Direct |
| Sep 30, 2026 | HYLN Hyliion Holdings Corp. | Conversion(C) | 71,341 | - | $0 | Direct |
| Aug 21, 2026 | HYLN Hyliion Holdings Corp. | Other(J) | 10,700 | $3.33 | $35,631 | Direct |
| May 20, 2026 | HYLN Hyliion Holdings Corp. | Other(J) | 2,003 | $3.92 | $7,852 | Direct |
| May 19, 2026 | HYLN Hyliion Holdings Corp. | Other(J) | 4,800 | $4.06 | $19,488 | Direct |
| Mar 3, 2026 | HYLN Hyliion Holdings Corp. | Other(J) | 14,816 | $2.04 | $30,225 | Direct |
| Feb 11, 2026 | HYLN Hyliion Holdings Corp. | Award(A) | 95,122 | $2.05 | $195,000 | Direct |
| Dec 12, 2025 | HYLN Hyliion Holdings Corp. | Other(J) | 12,949 | $1.94 | $25,121 | Direct |
| Nov 27, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 1,361 | $1.85 | $2,518 | Direct |
| Nov 26, 2025 | HYLN Hyliion Holdings Corp. | Award(A) | 540,541 | $1.85 | $1,000,001 | Direct |
| Nov 17, 2025 | HYLN Hyliion Holdings Corp. | Other(J) | 9,039 | $1.66 | $15,005 | Direct |
| Nov 14, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 7,397 | $1.70 | $12,575 | Direct |
| Nov 13, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 4,110 | $1.68 | $6,905 | Direct |
| Aug 27, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 1,361 | $1.69 | $2,300 | Direct |
| Aug 25, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 0 | - | - | Direct |
| Aug 25, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 8,430 | $1.77 | $14,921 | Direct |
| May 27, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 1,361 | $1.14 | $1,552 | Direct |
| May 13, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 4,110 | $1.91 | $7,850 | Direct |
| Feb 27, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 1,361 | $1.61 | $2,191 | Direct |
| Feb 18, 2025 | HYLN Hyliion Holdings Corp. | Award(A) | 93,302 | - | - | Direct |
| Feb 13, 2025 | HYLN Hyliion Holdings Corp. | Tax Payment(F) | 19,646 | $2.14 | $42,042 | Direct |
| Dec 11, 2024 | HYLN Hyliion Holdings Corp. | Conversion(C) | 101,250 | - | $0 | Direct |
| Nov 14, 2024 | HYLN Hyliion Holdings Corp. | Conversion(C) | 60,750 | - | $0 | Direct |
1-23 of 23 transactions
About MOOK JOSHUA T.
MOOK JOSHUA T. (SEC CIK 0002011297) files insider reports with the SEC as Chief Technology Officer of Hyliion Holdings Corp. (HYLN).
Signal8 holds 18 ownership filings by MOOK JOSHUA T., all Form 4s, filed between Nov 18, 2024 and Oct 1, 2026. Those filings report 23 transactions, from Nov 14, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on MOOK JOSHUA T.'s filings is in CEDAR PARK, TX.
Recent filings by MOOK JOSHUA T.
- Sep 30, 2026: Conversions of HYLN shares (2 lines, Form 4, code C).
- Aug 21, 2026: Other transaction of HYLN shares (Form 4, code J).
- May 20, 2026: Other transaction of HYLN shares (Form 4, code J).
- May 19, 2026: Other transaction of HYLN shares (Form 4, code J).
- Mar 3, 2026: Other transaction of HYLN shares (Form 4, code J).
Other insiders filing for Hyliion Holdings Corp. (HYLN)
- Standley Greg, Chief Accounting Officer.
- Oxholm Jose Miguel, Chief Legal&Compliance Officer
- Panzer Jon, Chief Financial Officer
- Healy Thomas J., Chief Executive Officer
- Cubbage Vincent T., Director
- RAMASAMY GOVINDARAJ, Chief Commercial Officer