Steel Dynamics Inc (STLD) Insider Ownership

Historic Insider Ownership Trends

Steel Dynamics's top three insider shareholders as of March 23, 2026 are Richard P Jr Teets (Director, 4.98Mn shares), Mark D Millett (Chairman Ceo, 2.99Mn shares), Keith E Busse (Director, 701.72K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Richard P Jr Teets 4,980,085 0 23 Feb, 2026
Mark D Millett Chairman And Ceo 3,016,701 0 13 Mar, 2026
Theresa E Wagler Executive Vice President Cfo 495,038 0 13 Mar, 2026
Barry Schneider President And Coo 246,399 0 13 Mar, 2026
Miguel Alvarez Senior Vice President 127,082 0 13 Mar, 2026
James Stanley Anderson Senior Vice President 112,837 0 13 Mar, 2026
Gabriel Shaheen 82,363 0 12 Jan, 2026
Christopher A Graham Senior Vice President 77,747 0 13 Mar, 2026
Richard P Jr Teets 0 73,000 18 Sep, 2025
Bradley S Seaman 50,650 0 12 Jan, 2026
Richard A Poinsatte Senior Vice President 30,918 0 13 Mar, 2026
Steven Alan Sonnenberg 19,561 0 15 Apr, 2024
Luis Manuel Sierra 10,792 0 12 Jan, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
13 Mar, 2026 Mark D Millett Common Stock A 46,422 $0.00 3,037,326 D A
13 Mar, 2026 James Stanley Anderson Common Stock A 14,738 $0.00 119,305 D A
13 Mar, 2026 Miguel Alvarez Common Stock A 16,479 $0.00 134,314 D A
13 Mar, 2026 Christopher A Graham Common Stock A 16,479 $0.00 84,979 D A
13 Mar, 2026 Theresa E Wagler Common Stock A 20,766 $0.00 504,152 D A
13 Mar, 2026 Richard A Poinsatte Common Stock A 6,253 $0.00 33,662 D A
13 Mar, 2026 Barry Schneider Common Stock A 26,571 $0.00 258,061 D A
13 Mar, 2026 Miguel Alvarez Common Stock D 7,232 $182.19 127,082 D F
13 Mar, 2026 James Stanley Anderson Common Stock D 6,468 $182.19 112,837 D F
13 Mar, 2026 Christopher A Graham Common Stock D 7,232 $182.19 77,747 D F
13 Mar, 2026 Barry Schneider Common Stock D 11,662 $182.19 246,399 D F
13 Mar, 2026 Theresa E Wagler Common Stock D 9,114 $182.19 495,038 D F
13 Mar, 2026 Richard A Poinsatte Common Stock D 2,744 $182.19 30,918 D F
13 Mar, 2026 Mark D Millett Common Stock D 20,625 $182.19 3,016,701 D F
02 Mar, 2026 Barry Schneider Common Stock D 1,291 $193.13 231,490 D F
23 Feb, 2026 James Stanley Anderson Common Stock D 657 $193.39 106,278 D F
23 Feb, 2026 Miguel Alvarez Common Stock D 956 $193.39 120,435 D F
23 Feb, 2026 Theresa E Wagler Common Stock D 1,355 $193.39 486,932 D F
23 Feb, 2026 Christopher A Graham Common Stock D 956 $193.39 71,100 D F
23 Feb, 2026 Mark D Millett Common Stock D 2,928 $193.39 2,998,991 D F