NorthWestern Energy Group, Inc. (NWE) · Insider trading

What NorthWestern Energy Group's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months

0 insiders, 0 trades

Sold, 12 months

0 insiders

Net, 12 months

bought less sold

Latest filing

2026-10-05

filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

Bought Sold Largest month: $421,929

Who traded, two years

Insider	Bought	Sold	Trades	Last trade	Holds after
Clark Anthony ThomasDirector	–	$384,430	1	2024-12-12	16,816
Cashell Michael RVP - Transmission	–	$136,312	1	2025-05-02	24,088
Ide Britt EDirector	–	$75,632	2	2025-02-25	11,021

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

Date	Insider	Trade	Shares	Price	Value	Holds after	Filing
2025-05-02	Cashell Michael RVP - Transmission	Sale	2,349	58.03	$136,312	24,088	Form 4
2025-02-25	Ide Britt EDirector	Sale	702	54.32	$38,133	11,021	Form 4
2024-12-12	Clark Anthony ThomasDirector	Sale	7,400	51.95	$384,430	16,816	Form 4
2024-12-09	Ide Britt EDirector	Sale	700	53.57	$37,499	10,888	Form 4

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

105 × grant or award27 × shares withheld for tax

Show them

Date	Insider	What	Shares	Price	Holds after	Filing
2026-10-01	Yazdi MahvashDirector	Grant or award A	+548	68.38	23,603	Form 4
2026-10-01	Horsfall Jan RobertDirector	Grant or award A	+548	68.38	12,261	Form 4
2026-10-01	Sullivan Linda GDirector	Grant or award A	+804	68.38	35,563	Form 4
2026-10-01	Goodin David LDirector	Grant or award A	+548	68.38	6,172	Form 4
2026-10-01	Larson Kent TDirector	Grant or award A	+548	68.38	12,589	Form 4
2026-10-01	Ide Britt EDirector	Grant or award A	+548	68.38	16,217	Form 4
2026-10-01	Yingling Jeffrey W.Director	Grant or award A	+548	68.38	25,121	Form 4
2026-10-01	Edwards Sherina M.Director	Grant or award A	+548	68.38	10,526	Form 4
2026-08-06	Horsfall Jan RobertDirector	Grant or award A	+524	71.62	11,670	Form 4
2026-08-04	Yingling Jeffrey W.Director	Grant or award A	+524	71.62	24,349	Form 4
2026-07-09	Yazdi MahvashDirector	Grant or award A	+524	71.62	22,932	Form 4/A
2026-07-09	Sullivan Linda GDirector	Grant or award A	+768	71.62	34,586	Form 4
2026-07-09	Goodin David LDirector	Grant or award A	+524	71.62	5,624	Form 4
2026-07-09	Larson Kent TDirector	Grant or award A	+524	71.62	12,041	Form 4
2026-07-09	Ide Britt EDirector	Grant or award A	+524	71.62	15,558	Form 4
2026-07-09	Edwards Sherina M.Director	Grant or award A	+524	71.62	9,978	Form 4
2026-07-06	Yazdi MahvashDirector	Grant or award A	+524	71.62	22,932	Form 4
2026-05-11	Horsfall Jan RobertDirector	Grant or award A	+569	65.94	11,109	Form 4
2026-05-11	Yingling Jeffrey W.Director	Grant or award A	+569	65.94	23,616	Form 4
2026-04-07	Yazdi MahvashDirector	Grant or award A	+569	65.94	22,291	Form 4
2026-04-07	Sullivan Linda GDirector	Grant or award A	+834	65.94	33,650	Form 4
2026-04-07	Goodin David LDirector	Grant or award A	+569	65.94	5,100	Form 4
2026-04-07	Larson Kent TDirector	Grant or award A	+569	65.94	11,517	Form 4
2026-04-07	Ide Britt EDirector	Grant or award A	+569	65.94	14,895	Form 4
2026-04-07	Edwards Sherina M.Director	Grant or award A	+569	65.94	9,454	Form 4
2026-03-03	Hines John DVP - Energy Supply & MT Gov	Grant or award A	+1,354	68.45	42,370	Form 4
2026-03-03	Hines John DVP - Energy Supply & MT Gov	Shares withheld for tax F	−398	–	41,972	Form 4
2026-02-27	Bird Brian BDirector, President and CEO	Grant or award A	+20,864	68.45	225,388	Form 4
2026-02-27	Bird Brian BDirector, President and CEO	Shares withheld for tax F	−7,341	–	218,047	Form 4
2026-02-27	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Grant or award A	+2,464	68.45	39,128	Form 4
2026-02-27	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Shares withheld for tax F	−643	–	38,485	Form 4
2026-02-27	Berzina Jeffrey B.Controller	Grant or award A	+938	68.45	4,949	Form 4
2026-02-27	Berzina Jeffrey B.Controller	Shares withheld for tax F	−278	–	4,671	Form 4
2026-02-27	Cashell Michael RVP - Transmission	Grant or award A	+2,453	68.45	28,105	Form 4
2026-02-27	Cashell Michael RVP - Transmission	Shares withheld for tax F	−763	–	27,342	Form 4
2026-02-27	Lail Crystal DawnVP and CFO	Grant or award A	+6,186	68.45	36,587	Form 4
2026-02-27	Lail Crystal DawnVP and CFO	Shares withheld for tax F	−1,506	–	35,081	Form 4
2026-02-27	Vold JeanneVP - Technology	Grant or award A	+1,679	68.45	14,699	Form 4
2026-02-27	Vold JeanneVP - Technology	Shares withheld for tax F	−478	–	14,221	Form 4
2026-02-27	Merkel JasonVP - Distribution	Grant or award A	+1,331	68.45	6,077	Form 4
2026-02-27	Merkel JasonVP - Distribution	Shares withheld for tax F	−461	–	5,616	Form 4
2026-02-27	Heim ShannonVP and General Counsel	Grant or award A	+2,818	68.45	9,687	Form 4
2026-02-27	Heim ShannonVP and General Counsel	Shares withheld for tax F	−892	–	8,795	Form 4
2026-02-27	LaFave BleauVP - Bus Dvlpmt & Asset Mgmt	Grant or award A	+671	68.45	3,694	Form 4
2026-02-27	LaFave BleauVP - Bus Dvlpmt & Asset Mgmt	Shares withheld for tax F	−198	–	3,496	Form 4
2026-02-24	Bird Brian BDirector, President and CEO	Grant or award A	+2,587	68.45	204,584	Form 4
2026-02-24	Bird Brian BDirector, President and CEO	Shares withheld for tax F	−60	–	204,524	Form 4
2026-02-24	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Grant or award A	+1,335	68.45	36,695	Form 4
2026-02-24	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Shares withheld for tax F	−31	–	36,664	Form 4
2026-02-24	Hines John DVP - Energy Supply & MT Gov	Grant or award A	+2,474	68.45	41,073	Form 4
2026-02-24	Hines John DVP - Energy Supply & MT Gov	Shares withheld for tax F	−57	–	41,016	Form 4
2026-02-24	Cashell Michael RVP - Transmission	Grant or award A	+1,329	68.45	25,683	Form 4
2026-02-24	Cashell Michael RVP - Transmission	Shares withheld for tax F	−31	–	25,652	Form 4
2026-02-24	Lail Crystal DawnVP and CFO	Grant or award A	+1,260	68.45	30,430	Form 4
2026-02-24	Lail Crystal DawnVP and CFO	Shares withheld for tax F	−29	–	30,401	Form 4
2026-02-24	Heim ShannonVP and General Counsel	Grant or award A	+148	68.45	6,880	Form 4
2026-02-24	Heim ShannonVP and General Counsel	Shares withheld for tax F	−11	–	6,869	Form 4
2026-02-03	Horsfall Jan RobertDirector	Grant or award A	+581	64.54	10,505	Form 4
2026-02-03	Yingling Jeffrey W.Director	Grant or award A	+581	64.54	22,821	Form 4
2026-01-22	Berzina Jeffrey B.Controller	Shares withheld for tax F	−124	64.54	3,999	Form 4
2026-01-22	Bird Brian BDirector, President and CEO	Shares withheld for tax F	−2,397	64.54	201,935	Form 4
2026-01-22	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Shares withheld for tax F	−327	64.54	35,336	Form 4
2026-01-22	Cashell Michael RVP - Transmission	Shares withheld for tax F	−381	64.54	24,354	Form 4
2026-01-22	Lail Crystal DawnVP and CFO	Shares withheld for tax F	−808	64.54	29,170	Form 4
2026-01-22	Vold JeanneVP - Technology	Shares withheld for tax F	−223	64.54	13,020	Form 4
2026-01-22	Merkel JasonVP - Distribution	Shares withheld for tax F	−206	64.54	4,746	Form 4
2026-01-22	LaFave BleauVP - Bus Dvlpmt & Asset Mgmt	Shares withheld for tax F	−89	64.54	2,722	Form 4
2026-01-15	Hines John DVP - Energy Supply & MT Gov	Shares withheld for tax F	−84	64.54	38,599	Form 4
2026-01-15	Heim ShannonVP and General Counsel	Shares withheld for tax F	−442	64.54	7,195	Form 4
2026-01-02	Yazdi MahvashDirector	Grant or award A	+581	64.54	21,592	Form 4
2026-01-02	Sullivan Linda GDirector	Grant or award A	+852	64.54	32,632	Form 4
2026-01-02	Goodin David LDirector	Grant or award A	+581	64.54	4,531	Form 4
2026-01-02	Larson Kent TDirector	Grant or award A	+581	64.54	10,948	Form 4
2026-01-02	Ide Britt EDirector	Grant or award A	+581	64.54	14,180	Form 4
2026-01-02	Edwards Sherina M.Director	Grant or award A	+581	64.54	8,885	Form 4
2025-12-19	Bird Brian BDirector, President and CEO	Shares withheld for tax F	−3,129	67.84	202,884	Form 4
2025-11-04	Horsfall Jan RobertDirector	Grant or award A	+640	58.61	9,896	Form 4
2025-11-04	Yingling Jeffrey W.Director	Grant or award A	+640	58.61	22,026	Form 4
2025-10-06	Yazdi MahvashDirector	Grant or award A	+640	58.61	20,884	Form 4
2025-10-06	Sullivan Linda GDirector	Grant or award A	+938	58.61	31,600	Form 4
2025-10-06	Goodin David LDirector	Grant or award A	+640	58.61	3,950	Form 4
2025-10-06	Larson Kent TDirector	Grant or award A	+640	58.61	10,367	Form 4
2025-10-06	Ide Britt EDirector	Grant or award A	+640	58.61	13,462	Form 4
2025-10-06	Edwards Sherina M.Director	Grant or award A	+640	58.61	8,304	Form 4
2025-08-01	Yingling Jeffrey W.Director	Grant or award A	+731	51.30	21,157	Form 4
2025-08-01	Horsfall Jan RobertDirector	Grant or award A	+731	51.30	9,232	Form 4
2025-07-01	Edwards Sherina M.Director	Grant or award A	+731	51.30	7,664	Form 4
2025-07-01	Yazdi MahvashDirector	Grant or award A	+731	51.30	20,105	Form 4
2025-07-01	Sullivan Linda GDirector	Grant or award A	+1,072	51.30	30,463	Form 4
2025-07-01	Larson Kent TDirector	Grant or award A	+731	51.30	9,727	Form 4
2025-07-01	Ide Britt EDirector	Grant or award A	+731	51.30	12,678	Form 4
2025-07-01	Goodin David LDirector	Grant or award A	+731	51.30	3,310	Form 4
2025-05-05	Yingling Jeffrey W.Director	Grant or award A	+648	57.87	20,177	Form 4
2025-05-02	Horsfall Jan RobertDirector	Grant or award A	+648	57.87	8,483	Form 4
2025-04-04	Yazdi MahvashDirector	Grant or award A	+648	57.87	19,217	Form 4
2025-04-04	Sullivan Linda GDirector	Grant or award A	+950	57.87	29,168	Form 4
2025-04-04	Ide Britt EDirector	Grant or award A	+648	57.87	11,794	Form 4
2025-04-04	Edwards Sherina M.Director	Grant or award A	+648	57.87	6,933	Form 4
2025-04-04	Larson Kent TDirector	Grant or award A	+648	57.87	8,996	Form 4
2025-04-04	Goodin David LDirector	Grant or award A	+648	57.87	2,579	Form 4
2025-03-07	Vold JeanneVP - Technology	Grant or award A	+1,321	54.12	12,192	Form 4
2025-03-07	Hines John DVP - Energy Supply & MT Gov	Grant or award A	+1,122	54.12	37,204	Form 4
2025-03-07	Heim ShannonVP and General Counsel	Grant or award A	+27	54.12	6,919	Form 4
2025-03-03	Vold JeanneVP - Technology	Grant or award A	+989	–	13,181	Form 4
2025-03-03	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Grant or award A	+1,677	54.12	33,817	Form 4
2025-03-03	Schroeppel Bobbi LVP - HR, Cust Care, Corp Comm	Grant or award A	+1,461	–	35,278	Form 4
2025-03-03	Lail Crystal DawnVP and CFO	Grant or award A	+3,963	54.12	25,853	Form 4
2025-03-03	Lail Crystal DawnVP and CFO	Grant or award A	+4,012	–	29,865	Form 4
2025-03-03	Berzina Jeffrey B.Controller	Grant or award A	+566	54.12	3,261	Form 4
2025-03-03	Berzina Jeffrey B.Controller	Grant or award A	+778	–	4,039	Form 4
2025-03-03	Merkel JasonVP - Distribution	Grant or award A	+495	54.12	3,928	Form 4
2025-03-03	Merkel JasonVP - Distribution	Grant or award A	+1,024	–	4,952	Form 4
2025-03-03	Cashell Michael RVP - Transmission	Grant or award A	+1,551	54.12	24,787	Form 4
2025-03-03	Cashell Michael RVP - Transmission	Grant or award A	+1,440	–	26,227	Form 4
2025-03-03	LaFave BleauVP - Bus Dvlpmt & Asset Mgmt	Grant or award A	+403	54.12	1,858	Form 4
2025-03-03	LaFave BleauVP - Bus Dvlpmt & Asset Mgmt	Grant or award A	+953	–	2,811	Form 4
2025-03-03	Bird Brian BDirector, President and CEO	Grant or award A	+7,540	54.12	183,422	Form 4
2025-03-03	Bird Brian BDirector, President and CEO	Grant or award A	+17,334	–	200,756	Form 4
2025-03-03	Hines John DVP - Energy Supply & MT Gov	Grant or award A	+787	54.12	34,642	Form 4
2025-03-03	Hines John DVP - Energy Supply & MT Gov	Grant or award A	+1,440	–	36,082	Form 4
2025-03-03	Heim ShannonVP and General Counsel	Grant or award A	+361	54.12	4,614	Form 4
2025-03-03	Heim ShannonVP and General Counsel	Grant or award A	+2,257	–	6,871	Form 4
2025-02-05	Yingling Jeffrey W.Director	Grant or award A	+702	53.46	19,320	Form 4
2025-02-05	Horsfall Jan RobertDirector	Grant or award A	+702	53.46	7,827	Form 4
2025-01-06	Edwards Sherina M.Director	Grant or award A	+702	53.46	6,285	Form 4
2025-01-06	Goodin David LDirector	Grant or award A	+702	53.46	1,931	Form 4
2025-01-06	Ide Britt EDirector	Grant or award A	+702	53.46	11,723	Form 4
2025-01-06	Larson Kent TDirector	Grant or award A	+702	53.46	8,348	Form 4
2025-01-06	Sullivan Linda GDirector	Grant or award A	+1,029	53.46	28,023	Form 4
2025-01-06	Yazdi MahvashDirector	Grant or award A	+702	53.46	18,432	Form 4
2024-12-03	Goodin David LDirector	Grant or award A	+1,229	54.39	1,229	Form 4
2024-11-01	Yingling Jeffrey W.Director	Grant or award A	+688	53.46	18,407	Form 4

How to read it

Buy, sale: Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan: A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after: The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value: Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

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