Sean P. Hennessy

CIK: 0001203507

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (19.2%)

Position reduction

Option Exercises (M)1 (3.8%)

Derivative conversions

Awards (A)18 (69.2%)

Compensation grants

Other (G, F, J, C, D, …)2 (7.7%)

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

Companies & Roles (2)

TDG

TransDigm Group INC

Director

PRM

Perimeter Solutions, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (26 total)

TDG
TransDigm Group INC
Sep 18, 2026
Award(A)
Direct
46 shares at avg. $1085.00$50K
TDG
TransDigm Group INC
Mar 20, 2026
Award(A)
Direct
41 shares at avg. $1214.66$50K
PRM
Perimeter Solutions, Inc.
Feb 26, 2026
Award(A)
Stock Option (right to buy)
Direct
7K shares-
PRM
Perimeter Solutions, Inc.
Feb 26, 2026
Award(A)
Stock Option (right to buy)
Direct
6.2K shares-
PRM
Perimeter Solutions, Inc.
Feb 26, 2026
Award(A)
Stock Option (right to buy)
Direct
1.8K shares-
PRM
Perimeter Solutions, Inc.
Feb 26, 2026
Award(A)
Stock Option (right to buy)
Direct
7K shares-
PRM
Perimeter Solutions, Inc.
Feb 26, 2026
Award(A)
Stock Option (right to buy)
Direct
7K shares-
PRM
Perimeter Solutions, Inc.
Feb 26, 2026
Award(A)
Stock Option (right to buy)
Direct
7K shares-
TDG
TransDigm Group INC
Nov 4, 2025
Award(A)
Stock Option
Direct
518 shares-
TDG
TransDigm Group INC
Sep 19, 2025
Award(A)
Direct
36 shares at avg. $1288.13$46K
TDG
TransDigm Group INC
May 20, 2025
Exercise(M)
Direct
4.7K shares at avg. $156.47$735K
TDG
TransDigm Group INC
May 20, 2025
Sale(S)
Direct
3K shares at avg. $1435.77$4.3M
TDG
TransDigm Group INC
May 20, 2025
Sale(S)
Direct
664 shares at avg. $1437.07$954K
TDG
TransDigm Group INC
May 20, 2025
Sale(S)
Direct
636 shares at avg. $1437.85$914K
TDG
TransDigm Group INC
May 20, 2025
Sale(S)
Direct
300 shares at avg. $1438.89$432K
TDG
TransDigm Group INC
May 20, 2025
Sale(S)
Direct
100 shares at avg. $1439.92$144K
TDG
TransDigm Group INC
Mar 26, 2025
Award(A)
Direct
35 shares at avg. $1346.50$47K
PRM
Perimeter Solutions, Inc.
Feb 20, 2025
Award(A)
Stock Option (right to buy)
Direct
21K shares-
PRM
Perimeter Solutions, Inc.
Feb 20, 2025
Award(A)
Stock Option (right to buy)
Direct
5.3K shares-
PRM
Perimeter Solutions, Inc.
Feb 20, 2025
Award(A)
Stock Option (right to buy)
Direct
14K shares-
PRM
Perimeter Solutions, Inc.
Feb 20, 2025
Award(A)
Stock Option (right to buy)
Direct
7K shares-
PRM
Perimeter Solutions, Inc.
Feb 20, 2025
Award(A)
Stock Option (right to buy)
Direct
14K shares-
TDG
TransDigm Group INC
Oct 31, 2024
Award(A)
Stock Option
Direct
450 shares-
TDG
TransDigm Group INC
Sep 25, 2024
Award(A)
Direct
34 shares at avg. $1367.76$47K
TDG
TransDigm Group INC
Feb 25, 2019
Gift(G)
Direct
288 shares-

		Type	Shares	Price		Ownership
Sep 18, 2026	TDG TransDigm Group INC	Award(A)	46	$1085.00	$49,910	Direct
Mar 20, 2026	TDG TransDigm Group INC	Award(A)	41	$1214.66	$49,801	Direct
Feb 26, 2026	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	7,000	-	-	Direct
Feb 26, 2026	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	6,194	-	-	Direct
Feb 26, 2026	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	1,750	-	-	Direct
Feb 26, 2026	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	7,000	-	-	Direct
Feb 26, 2026	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	7,000	-	-	Direct
Feb 26, 2026	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	7,000	-	-	Direct
Nov 4, 2025	TDG TransDigm Group INC	Award(A) Stock Option	518	-	-	Direct
Sep 19, 2025	TDG TransDigm Group INC	Award(A)	36	$1288.13	$46,373	Direct
May 20, 2025	TDG TransDigm Group INC	Exercise(M)	4,700	$156.47	$735,409	Direct
May 20, 2025	TDG TransDigm Group INC	Sale(S)	3,000	$1435.77	$4,307,318	Direct
May 20, 2025	TDG TransDigm Group INC	Sale(S)	664	$1437.07	$954,214	Direct
May 20, 2025	TDG TransDigm Group INC	Sale(S)	636	$1437.85	$914,470	Direct
May 20, 2025	TDG TransDigm Group INC	Sale(S)	300	$1438.89	$431,666	Direct
May 20, 2025	TDG TransDigm Group INC	Sale(S)	100	$1439.92	$143,992	Direct
Mar 26, 2025	TDG TransDigm Group INC	Award(A)	35	$1346.50	$47,128	Direct
Feb 20, 2025	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	21,000	-	-	Direct
Feb 20, 2025	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	5,250	-	-	Direct
Feb 20, 2025	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	14,000	-	-	Direct
Feb 20, 2025	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	7,000	-	-	Direct
Feb 20, 2025	PRM Perimeter Solutions, Inc.	Award(A) Stock Option (right to buy)	14,000	-	-	Direct
Oct 31, 2024	TDG TransDigm Group INC	Award(A) Stock Option	450	-	-	Direct
Sep 25, 2024	TDG TransDigm Group INC	Award(A)	34	$1367.76	$46,504	Direct
Feb 25, 2019	TDG TransDigm Group INC	Gift(G)	288	-	$0	Direct

1-25 of 26 transactions

About HENNESSY SEAN P

HENNESSY SEAN P (SEC CIK 0001203507) files insider reports with the SEC as Director of TransDigm Group INC (TDG) and Director of Perimeter Solutions, Inc. (PRM).

Signal8 holds 10 ownership filings by HENNESSY SEAN P, all Form 4s, filed between Sep 27, 2024 and Sep 21, 2026. Those filings report 26 transactions, from Jun 7, 2018 to Sep 18, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on HENNESSY SEAN P's filings is in WESTLAKE, OH.

Recent filings by HENNESSY SEAN P

Sep 18, 2026: Grant or award of TDG shares (Form 4, code A).
Mar 20, 2026: Grant or award of TDG shares (Form 4, code A).
Feb 26, 2026: Grants or awards of PRM derivative securities (6 lines, Form 4, code A).
Nov 4, 2025: Grant or award of TDG derivative securities (Form 4, code A).
Sep 19, 2025: Grant or award of TDG shares (Form 4, code A).

Other insiders filing for TransDigm Group INC (TDG)

Reiss Joel, Co-Chief Operating Officer
SMALL ROBERT J, Director
Palmer Peter, Director
Howley W Nicholas, Director
Krasik Irina Igorevna, Director
Santana Michele, Director

How to read Form 4 transaction codes