Michael P. Garthwaite

CIK: 0002080127

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)8 (72.7%)

Position reduction

Option Exercises (M)1 (9.1%)

Derivative conversions

Awards (A)1 (9.1%)

Compensation grants

Other (G, F, J, C, D, …)1 (9.1%)

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

Companies & Roles (1)

KMI

KINDER MORGAN, INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (11 total)

KMI
KINDER MORGAN, INC.
Oct 16, 2026
Sale(S)
Direct
1.6K shares at avg. $33.65$52K
KMI
KINDER MORGAN, INC.
Sep 16, 2026
Sale(S)
Direct
1.6K shares at avg. $30.80$48K
KMI
KINDER MORGAN, INC.
Aug 17, 2026
Sale(S)
Direct
1.6K shares at avg. $32.65$51K
KMI
KINDER MORGAN, INC.
Jul 21, 2026
Award(A)
Restricted Stock Unit
Direct
61.8K shares-
KMI
KINDER MORGAN, INC.
Jul 18, 2026
Tax Payment(F)
Direct
4.1K shares at avg. $32.30$134K
KMI
KINDER MORGAN, INC.
Jul 18, 2026
Exercise(M)
Direct
15.9K shares-
KMI
KINDER MORGAN, INC.
Jul 16, 2026
Sale(S)
Direct
1.6K shares at avg. $32.52$50K
KMI
KINDER MORGAN, INC.
Jun 16, 2026
Sale(S)
Direct
1.6K shares at avg. $31.44$49K
KMI
KINDER MORGAN, INC.
May 18, 2026
Sale(S)
Direct
1.6K shares at avg. $33.65$52K
KMI
KINDER MORGAN, INC.
Apr 16, 2026
Sale(S)
Direct
1.6K shares at avg. $31.72$49K
KMI
KINDER MORGAN, INC.
Mar 16, 2026
Sale(S)
Direct
1.6K shares at avg. $33.30$52K

		Type	Shares	Price		Ownership
Oct 16, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$33.65	$52,153	Direct
Sep 16, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$30.80	$47,745	Direct
Aug 17, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$32.65	$50,612	Direct
Jul 21, 2026	KMI KINDER MORGAN, INC.	Award(A) Restricted Stock Unit	61,767	-	-	Direct
Jul 18, 2026	KMI KINDER MORGAN, INC.	Tax Payment(F)	4,145	$32.30	$133,884	Direct
Jul 18, 2026	KMI KINDER MORGAN, INC.	Exercise(M)	15,915	-	$0	Direct
Jul 16, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$32.52	$50,400	Direct
Jun 16, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$31.44	$48,727	Direct
May 18, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$33.65	$52,151	Direct
Apr 16, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$31.72	$49,168	Direct
Mar 16, 2026	KMI KINDER MORGAN, INC.	Sale(S)	1,550	$33.30	$51,609	Direct

1-11 of 11 transactions

About Garthwaite Michael P.

Garthwaite Michael P. (SEC CIK 0002080127) files insider reports with the SEC as VP (Pres., Products Pipelines) of KINDER MORGAN, INC. (KMI).

Signal8 holds 10 ownership filings by Garthwaite Michael P. (1 Form 3, 9 Form 4), filed between Aug 8, 2025 and Oct 20, 2026. Those filings report 11 transactions, from Mar 16, 2026 to Oct 16, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Garthwaite Michael P.'s filings is in HOUSTON, TX.

Recent filings by Garthwaite Michael P.

Oct 16, 2026: Open-market sale of KMI shares (Form 4, code S).
Sep 16, 2026: Open-market sale of KMI shares (Form 4, code S).
Aug 17, 2026: Open-market sale of KMI shares (Form 4, code S).
Jul 21, 2026: Grant or award of KMI derivative securities (Form 4, code A).
Jul 18, 2026: Tax withholding of KMI shares (Form 4, code F).

Other insiders filing for KINDER MORGAN, INC. (KMI)

Sanders Dax, President
Grubb Kenneth W., VP and COO
Michels David Patrick, VP and Chief Financial Officer
Dang Kimberly A, Chief Executive Officer
Holland James E, VP and COO
ASHLEY ANTHONY B, VP (President, CO2 and ETV)

How to read Form 4 transaction codes