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SEC Form 4 research

NORTHWESTERN CORP insider transactions

Inspect NORTHWESTERN CORP's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0000073088
Reporting owners
45
Officers and directors
18
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Show the table · 0 rows, 7 columns

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Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Show the table · 20 rows, 3 columns

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JOHNSON JULIA L000122144214
Rowe Robert C000144370431
Pohl Curtis T000133507010
Schroeppel Bobbi L00013350719
Cashell Michael R000152205211
Clark Anthony Thomas00016919582
ADIK STEPHEN P000120520218
BIRD BRIAN B00012716704
Bradley Dorothy M.00014623641
Corcoran Patrick R00013350682
CRAMBLIT MIGGIE E00012498071
DRAPER E LINN JR00011862962
FOSSEL JON S00011877648
Heather H. Grahame000149790321
Hines John D00015220518
HORSFALL JAN ROBERT000124456310
Ide Britt E000163440313
KLIEWER KENDALL00012753882
MASLOWE PHILIP L00010447274
Peoples Denton Louis00013514594
JOHNSON JULIA L ↗Rowe Robert C ↗Pohl Curtis T ↗Schroeppel Bobbi L ↗Cashell Michael R ↗Clark Anthony Thomas ↗ADIK STEPHEN P ↗BIRD BRIAN B ↗Bradley Dorothy M. ↗Corcoran Patrick R ↗CRAMBLIT MIGGIE E ↗DRAPER E LINN JR ↗FOSSEL JON S ↗Heather H. Grahame ↗Hines John D ↗HORSFALL JAN ROBERT ↗Ide Britt E ↗KLIEWER KENDALL ↗MASLOWE PHILIP L ↗Peoples Denton Louis ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.