NORTHWESTERN CORP

PrivateCIK: 73088

Location

SIOUX FALLS, SD

JOHNSON JULIA L

→MASTEC INC

May 19, 2026·May 19, 2026

1 txn

IDE BRITT E

→NORTHWESTERN ENERGY GROUP, INC.

Apr 7, 2026·Apr 7, 2026

1 txn

LARSON KENT T

→NORTHWESTERN ENERGY GROUP, INC.

Apr 7, 2026·Apr 7, 2026

1 txn

EDWARDS SHERINA M.

→NORTHWESTERN ENERGY GROUP, INC.

Apr 7, 2026·Apr 7, 2026

1 txn

HINES JOHN D

→NORTHWESTERN ENERGY GROUP, INC.

Mar 3, 2026·Mar 3, 2026

2 txn

BERZINA JEFFREY B.

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

CASHELL MICHAEL R

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

MERKEL JASON

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

LAFAVE BLEAU

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

BIRD BRIAN B

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

HEIM SHANNON

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

LAIL CRYSTAL DAWN

→NORTHWESTERN ENERGY GROUP, INC.

Mar 2, 2026·Mar 2, 2026

2 txn

LAIL CRYSTAL DAWN

→NORTHWESTERN ENERGY GROUP, INC.

Feb 25, 2026·Feb 25, 2026

2 txn

HEIM SHANNON

→NORTHWESTERN ENERGY GROUP, INC.

Feb 25, 2026·Feb 25, 2026

2 txn

CASHELL MICHAEL R

→NORTHWESTERN ENERGY GROUP, INC.

Feb 25, 2026·Feb 25, 2026

2 txn

HINES JOHN D

→NORTHWESTERN ENERGY GROUP, INC.

Feb 25, 2026·Feb 25, 2026

2 txn

BIRD BRIAN B

→NORTHWESTERN ENERGY GROUP, INC.

Feb 25, 2026·Feb 25, 2026

2 txn

JOHNSON JULIA L

→MASTEC INC

Feb 18, 2026·Feb 18, 2026

1 txn

HORSFALL JAN ROBERT

→NORTHWESTERN ENERGY GROUP, INC.

Feb 4, 2026·Feb 4, 2026

1 txn

BERZINA JEFFREY B.

→NORTHWESTERN ENERGY GROUP, INC.

Jan 26, 2026·Jan 26, 2026

1 txn

LAIL CRYSTAL DAWN

→NORTHWESTERN ENERGY GROUP, INC.

Jan 23, 2026·Jan 23, 2026

1 txn

MERKEL JASON

→NORTHWESTERN ENERGY GROUP, INC.

Jan 23, 2026·Jan 23, 2026

1 txn

LAFAVE BLEAU

→NORTHWESTERN ENERGY GROUP, INC.

Jan 23, 2026·Jan 23, 2026

1 txn

CASHELL MICHAEL R

→NORTHWESTERN ENERGY GROUP, INC.

Jan 23, 2026·Jan 23, 2026

1 txn

BIRD BRIAN B

→NORTHWESTERN ENERGY GROUP, INC.

Jan 23, 2026·Jan 23, 2026

1 txn

Page 1 of 14 · 346 total

Filer	Form	Target	Filed	Activity
JOHNSON JULIA LCIK · 1221442	4 Trade	MASTEC INCCIK · 15615	May 19, 2026 May 19, 2026	1txn
IDE BRITT ECIK · 1634403	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Apr 7, 2026 Apr 7, 2026	1txn
LARSON KENT TCIK · 1530618	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Apr 7, 2026 Apr 7, 2026	1txn
EDWARDS SHERINA M.CIK · 1931208	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Apr 7, 2026 Apr 7, 2026	1txn
HINES JOHN DCIK · 1522051	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 3, 2026 Mar 3, 2026	2txn
BERZINA JEFFREY B.CIK · 1450010	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
CASHELL MICHAEL RCIK · 1522052	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
MERKEL JASONCIK · 1945750	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
LAFAVE BLEAUCIK · 1981436	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
BIRD BRIAN BCIK · 1271670	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
HEIM SHANNONCIK · 1960374	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
LAIL CRYSTAL DAWNCIK · 1656678	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Mar 2, 2026 Mar 2, 2026	2txn
LAIL CRYSTAL DAWNCIK · 1656678	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Feb 25, 2026 Feb 25, 2026	2txn
HEIM SHANNONCIK · 1960374	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Feb 25, 2026 Feb 25, 2026	2txn
CASHELL MICHAEL RCIK · 1522052	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Feb 25, 2026 Feb 25, 2026	2txn
HINES JOHN DCIK · 1522051	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Feb 25, 2026 Feb 25, 2026	2txn
BIRD BRIAN BCIK · 1271670	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Feb 25, 2026 Feb 25, 2026	2txn
JOHNSON JULIA LCIK · 1221442	4 Trade	MASTEC INCCIK · 15615	Feb 18, 2026 Feb 18, 2026	1txn
HORSFALL JAN ROBERTCIK · 1244563	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Feb 4, 2026 Feb 4, 2026	1txn
BERZINA JEFFREY B.CIK · 1450010	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Jan 26, 2026 Jan 26, 2026	1txn
LAIL CRYSTAL DAWNCIK · 1656678	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Jan 23, 2026 Jan 23, 2026	1txn
MERKEL JASONCIK · 1945750	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Jan 23, 2026 Jan 23, 2026	1txn
LAFAVE BLEAUCIK · 1981436	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Jan 23, 2026 Jan 23, 2026	1txn
CASHELL MICHAEL RCIK · 1522052	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Jan 23, 2026 Jan 23, 2026	1txn
BIRD BRIAN BCIK · 1271670	4 Trade	NORTHWESTERN ENERGY GROUP, INC.CIK · 1993004	Jan 23, 2026 Jan 23, 2026	1txn

Page 1 of 14 · 346 total