Shannon Heim

CIK: 0001960374

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)5 (62.5%)

Compensation grants

Other (G, F, J, C, D, …)3 (37.5%)

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

Companies & Roles (1)

NWE

NorthWestern Energy Group, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (8 total)

NWE
NorthWestern Energy Group, Inc.
Feb 27, 2026
Tax Payment(F)
Direct
892 shares-
NWE
NorthWestern Energy Group, Inc.
Feb 27, 2026
Award(A)
Direct
2.8K shares at avg. $68.45$193K
NWE
NorthWestern Energy Group, Inc.
Feb 24, 2026
Tax Payment(F)
Direct
11 shares-
NWE
NorthWestern Energy Group, Inc.
Feb 24, 2026
Award(A)
Direct
148 shares at avg. $68.45$10K
NWE
NorthWestern Energy Group, Inc.
Jan 15, 2026
Tax Payment(F)
Direct
442 shares at avg. $64.54$29K
NWE
NorthWestern Energy Group, Inc.
Mar 7, 2025
Award(A)
Direct
27 shares at avg. $54.12$1K
NWE
NorthWestern Energy Group, Inc.
Mar 3, 2025
Award(A)
Direct
2.3K shares-
NWE
NorthWestern Energy Group, Inc.
Mar 3, 2025
Award(A)
Direct
361 shares at avg. $54.12$20K

		Type	Shares	Price		Ownership
Feb 27, 2026	NWE NorthWestern Energy Group, Inc.	Tax Payment(F)	892	-	$0	Direct
Feb 27, 2026	NWE NorthWestern Energy Group, Inc.	Award(A)	2,818	$68.45	$192,892	Direct
Feb 24, 2026	NWE NorthWestern Energy Group, Inc.	Tax Payment(F)	11	-	$0	Direct
Feb 24, 2026	NWE NorthWestern Energy Group, Inc.	Award(A)	148	$68.45	$10,131	Direct
Jan 15, 2026	NWE NorthWestern Energy Group, Inc.	Tax Payment(F)	442	$64.54	$28,527	Direct
Mar 7, 2025	NWE NorthWestern Energy Group, Inc.	Award(A)	27	$54.12	$1,461	Direct
Mar 3, 2025	NWE NorthWestern Energy Group, Inc.	Award(A)	2,257	-	-	Direct
Mar 3, 2025	NWE NorthWestern Energy Group, Inc.	Award(A)	361	$54.12	$19,537	Direct

1-8 of 8 transactions

About Heim Shannon

Heim Shannon (SEC CIK 0001960374) files insider reports with the SEC as VP and General Counsel of NorthWestern Energy Group, Inc. (NWE).

Signal8 holds 5 ownership filings by Heim Shannon, all Form 4s, filed between Mar 5, 2025 and Mar 2, 2026. Those filings report 8 transactions, from Mar 3, 2025 to Feb 27, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Heim Shannon's filings is in HELENA, MT.

Recent filings by Heim Shannon

Feb 27, 2026: Tax withholding of NWE shares (Form 4, code F).
Feb 27, 2026: Grant or award of NWE shares (Form 4, code A).
Feb 24, 2026: Tax withholding of NWE shares (Form 4, code F).
Feb 24, 2026: Grant or award of NWE shares (Form 4, code A).
Jan 15, 2026: Tax withholding of NWE shares (Form 4, code F).

Other insiders filing for NorthWestern Energy Group, Inc. (NWE)

HORSFALL JAN ROBERT, Director
Yingling Jeffrey W., Director
Edwards Sherina M., Director
Goodin David L, Director
Ide Britt E, Director
Larson Kent T, Director

How to read Form 4 transaction codes