Thomas J. Healy

CIK: 0001825486

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (11.1%)

Compensation grants

Other (G, F, J, C, D, …)16 (88.9%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

HYLN

Hyliion Holdings Corp.

DirectorOfficer10% Owner

Discretionary Trading P&L

Holdings

Transaction History (18 total)

HYLN
Hyliion Holdings Corp.
Sep 30, 2026
Conversion(C)
Direct
202K shares-
HYLN
Hyliion Holdings Corp.
Sep 30, 2026
Conversion(C)
Direct
222.3K shares-
HYLN
Hyliion Holdings Corp.
Aug 21, 2026
Other(J)
Direct
29.8K shares at avg. $3.33$99K
HYLN
Hyliion Holdings Corp.
May 20, 2026
Other(J)
Direct
11.4K shares at avg. $3.98$45K
HYLN
Hyliion Holdings Corp.
May 19, 2026
Other(J)
Direct
16.6K shares at avg. $4.08$68K
HYLN
Hyliion Holdings Corp.
Mar 3, 2026
Other(J)
Direct
58.2K shares at avg. $2.05$119K
HYLN
Hyliion Holdings Corp.
Feb 11, 2026
Award(A)
Direct
296.3K shares at avg. $2.05$608K
HYLN
Hyliion Holdings Corp.
Dec 12, 2025
Other(J)
Direct
135K shares at avg. $1.94$262K
HYLN
Hyliion Holdings Corp.
Nov 17, 2025
Other(J)
Direct
159.8K shares at avg. $1.66$265K
HYLN
Hyliion Holdings Corp.
Aug 25, 2025
Tax Payment(F)
Direct
0 shares-
HYLN
Hyliion Holdings Corp.
Aug 25, 2025
Tax Payment(F)
Direct
61.6K shares at avg. $1.77$109K
HYLN
Hyliion Holdings Corp.
May 13, 2025
Tax Payment(F)
Direct
11.4K shares at avg. $1.91$22K
HYLN
Hyliion Holdings Corp.
Mar 26, 2025
Tax Payment(F)
Direct
9.1K shares at avg. $1.55$14K
HYLN
Hyliion Holdings Corp.
Feb 28, 2025
Tax Payment(F)
Direct
23.7K shares at avg. $1.69$40K
HYLN
Hyliion Holdings Corp.
Feb 18, 2025
Award(A)
Direct
336.7K shares-
HYLN
Hyliion Holdings Corp.
Feb 13, 2025
Tax Payment(F)
Direct
38K shares at avg. $2.14$81K
HYLN
Hyliion Holdings Corp.
Dec 11, 2024
Conversion(C)
Direct
658.1K shares-
HYLN
Hyliion Holdings Corp.
Nov 14, 2024
Conversion(C)
Direct
394.9K shares-

		Type	Shares	Price		Ownership
Sep 30, 2026	HYLN Hyliion Holdings Corp.	Conversion(C)	202,033	-	$0	Direct
Sep 30, 2026	HYLN Hyliion Holdings Corp.	Conversion(C)	222,256	-	$0	Direct
Aug 21, 2026	HYLN Hyliion Holdings Corp.	Other(J)	29,840	$3.33	$99,367	Direct
May 20, 2026	HYLN Hyliion Holdings Corp.	Other(J)	11,426	$3.98	$45,475	Direct
May 19, 2026	HYLN Hyliion Holdings Corp.	Other(J)	16,600	$4.08	$67,728	Direct
Mar 3, 2026	HYLN Hyliion Holdings Corp.	Other(J)	58,202	$2.05	$119,314	Direct
Feb 11, 2026	HYLN Hyliion Holdings Corp.	Award(A)	296,342	$2.05	$607,501	Direct
Dec 12, 2025	HYLN Hyliion Holdings Corp.	Other(J)	134,963	$1.94	$261,828	Direct
Nov 17, 2025	HYLN Hyliion Holdings Corp.	Other(J)	159,776	$1.66	$265,228	Direct
Aug 25, 2025	HYLN Hyliion Holdings Corp.	Tax Payment(F)	0	-	-	Direct
Aug 25, 2025	HYLN Hyliion Holdings Corp.	Tax Payment(F)	61,603	$1.77	$109,037	Direct
May 13, 2025	HYLN Hyliion Holdings Corp.	Tax Payment(F)	11,418	$1.91	$21,808	Direct
Mar 26, 2025	HYLN Hyliion Holdings Corp.	Tax Payment(F)	9,132	$1.55	$14,155	Direct
Feb 28, 2025	HYLN Hyliion Holdings Corp.	Tax Payment(F)	23,742	$1.69	$40,124	Direct
Feb 18, 2025	HYLN Hyliion Holdings Corp.	Award(A)	336,723	-	-	Direct
Feb 13, 2025	HYLN Hyliion Holdings Corp.	Tax Payment(F)	38,019	$2.14	$81,361	Direct
Dec 11, 2024	HYLN Hyliion Holdings Corp.	Conversion(C)	658,125	-	$0	Direct
Nov 14, 2024	HYLN Hyliion Holdings Corp.	Conversion(C)	394,875	-	$0	Direct

1-18 of 18 transactions

About Healy Thomas J.

Healy Thomas J. (SEC CIK 0001825486) files insider reports with the SEC as Chief Executive Officer of Hyliion Holdings Corp. (HYLN).

Signal8 holds 16 ownership filings by Healy Thomas J., all Form 4s, filed between Nov 18, 2024 and Oct 1, 2026. Those filings report 18 transactions, from Nov 14, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Healy Thomas J.'s filings is in CEDAR PARK, TX.

Recent filings by Healy Thomas J.

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
MOOK JOSHUA T., Chief Technology Officer
Panzer Jon, Chief Financial Officer
Cubbage Vincent T., Director
RAMASAMY GOVINDARAJ, Chief Commercial Officer

How to read Form 4 transaction codes