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SEC Form 4 research

STEEL DYNAMICS INC insider transactions

Inspect STEEL DYNAMICS INC's public SEC insider acquisitions and sales, reporting owners and source receipts.

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

Issuer CIK
0001022671
Reporting owners
39
Officers and directors
20
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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.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

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2026-10-092026-10-09Sierra Luis ManuelA7$0Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-09 and its public availability date is 2026-10-09. Subtracting those calendar dates gives 0 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001022671-26-000157 ↗SEC accession 0001022671-26-000156 ↗SEC accession 0001022671-26-000155 ↗

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 · 7 rows, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-092026-10-09Sierra Luis ManuelA7$0Not reported
2026-10-092026-10-09Seaman Bradley SA105$0Not reported
2026-10-092026-10-09Hamann Jennifer LA18$0Not reported
2026-10-092026-10-09DOLAN TRACI MA97$0Not reported
2026-10-092026-10-09Cornew Kenneth W.A2$0Not reported
2026-10-092026-10-09BARGABOS SHEREE LA40$0Not reported
2026-08-152026-08-13Hamann Jennifer LA72$0Not reported

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

Inspect all 26 displayed rows: Officers and directors in the directory

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TEETS RICHARD P JR000119595028
BYRNE FRANK D000121680610
RINN RUSSELL B00011867305
MARCUCCILLI JAMES C00013219443
Pushis Glenn000130174250
Graham Christopher A000160747729
CRAWFORD THOMAS J00012294522
Alvarez Miguel000176717712
Anderson James Stanley00019210616
BATES JOHN C0001027286695
Bickford Chad00020190641
BRADY RICHARD J00013485719
BUSSE KEITH E0001195948438
Cornew Kenneth W.000148237912
EDGERLEY PAUL B000107597341
FINK MARY00013966344
Heasley Gary E00013151358
HOLLMAN BERT D000128451430
KOLB JURGEN DR000119595831
MILLETT MARK D00011959496
NOLAN JOHN W000119595311
Poinsatte Richard A00014383453
RUFFOLO JOSEPH D00011959616
Seaman Bradley S00015970692
Shaheen Gabriel000141139313
Wagler Theresa E000130163754
TEETS RICHARD P JR ↗BYRNE FRANK D ↗RINN RUSSELL B ↗MARCUCCILLI JAMES C ↗Pushis Glenn ↗Graham Christopher A ↗CRAWFORD THOMAS J ↗Alvarez Miguel ↗Anderson James Stanley ↗BATES JOHN C ↗Bickford Chad ↗BRADY RICHARD J ↗BUSSE KEITH E ↗Cornew Kenneth W. ↗EDGERLEY PAUL B ↗FINK MARY ↗Heasley Gary E ↗HOLLMAN BERT D ↗KOLB JURGEN DR ↗MILLETT MARK D ↗NOLAN JOHN W ↗Poinsatte Richard A ↗RUFFOLO JOSEPH D ↗Seaman Bradley S ↗Shaheen Gabriel ↗Wagler Theresa E ↗

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.