Steel Dynamics STLD Insider Ownership

NASDAQ STLD
$221.90 -8.49 (-3.69%)
At close: Sep 29, 2026 · 4:00 PM EDT

Insider Holdings by Owner

10.66Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
7.52%
▲+0.0000% pp QoQ
Shares Held by Insiders
10.82Mn
filed for Sep 2026
▲+0.00% QoQ
Shares Outstanding
144.00Mn
143,997,000 shares
Direct Holdings
10.66Mn
Indirect: 166.12K
Net Shares Traded (QoQ)
+53
net buying in Sep 2026
Insiders Holding Shares
23
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

STLD's three largest insider shareholders as of September 29, 2026 are Richard P Jr Teets (Executive Vice President, 4.98Mn shares), Mark D Millett (Chairman And Ceo, 3.02Mn shares), Keith E Busse (Chairman And Ceo, 701.72K shares).

Form 4 Holdings

Insiders Holding STLD

Insiders 23
Shares held 10.66Mn
Of outstanding 7.40%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Richard P Jr Teets Executive Vice President 4,980,252 0 4,980,252 46.7% 07 May, 2026
2 Mark D Millett Chairman And Ceo 3,016,401 0 3,016,401 28.3% 28 Jul, 2026
3 Keith E Busse Chairman And Ceo 701,717 0 701,717 6.6% 18 Apr, 2023
4 Theresa E Wagler Executive Vice President Cfo 495,038 0 495,038 4.6% 13 Mar, 2026
5 Russell B Rinn Executive Vice President 301,502 0 301,502 2.8% 31 Aug, 2022
6 Barry Schneider President And Coo 246,399 0 246,399 2.3% 13 Mar, 2026
7 Glenn Pushis Senior Vice President 133,008 0 133,008 1.2% 12 Jan, 2026
8 Miguel Alvarez Senior Vice President 122,257 0 122,257 1.1% 24 Apr, 2026
9 James Stanley Anderson Senior Vice President 102,837 0 102,837 1.0% 08 Jun, 2026
10 Gabriel Shaheen Director 82,520 0 82,520 0.8% 13 Apr, 2026
11 Frank D Byrne Director 82,326 0 82,326 0.8% 22 Apr, 2022
12 Christopher A Graham Senior Vice President 68,747 0 68,747 0.6% 15 May, 2026
13 James C Marcuccilli Director 61,985 0 61,985 0.6% 11 Oct, 2024
14 Traci M Dolan Director 58,970 0 58,970 0.6% 14 Jul, 2026
15 Bradley S Seaman Director 51,600 0 51,600 0.5% 14 Jul, 2026
16 Kenneth W. Cornew Director 32,013 0 32,013 0.3% 14 Jul, 2026
17 Richard A Poinsatte Senior Vice President 28,418 0 28,418 0.3% 15 May, 2026
18 Sheree L Bargabos Director 27,105 0 27,105 0.3% 14 Jul, 2026
19 Chad Bickford Vice President 24,025 0 24,025 0.2% 04 May, 2026
20 Steven Alan Sonnenberg Director 19,561 0 19,561 0.2% 15 Apr, 2024
21 Luis Manuel Sierra Director 11,523 0 11,523 0.1% 14 Jul, 2026
22 Jennifer L Hamann Director 5,376 0 5,376 0.1% 14 Aug, 2026
23 Matthew Lane Bell Vice President 2,017 0 2,017 0.0% 24 Feb, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

3,159 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
13 Aug, 2026 Jennifer L Hamann Director Acquired A 72 $0.00 $0 5,376 Direct
28 Jul, 2026 Mark D Millett Chairman And Ceo Disposed G 300 $0.00 $0 3,016,401 Direct
10 Jul, 2026 Kenneth W. Cornew Director Acquired A 2 $0.00 $0 32,013 Direct
10 Jul, 2026 Jennifer L Hamann Director Acquired A 18 $0.00 $0 5,304 Direct
10 Jul, 2026 Luis Manuel Sierra Director Acquired A 7 $0.00 $0 11,523 Direct
10 Jul, 2026 Bradley S Seaman Director Acquired A 109 $0.00 $0 51,600 Direct
10 Jul, 2026 Sheree L Bargabos Director Acquired A 43 $0.00 $0 27,105 Direct
10 Jul, 2026 Traci M Dolan Director Acquired A 102 $0.00 $0 58,970 Direct
05 Jun, 2026 James Stanley Anderson Senior Vice President Disposed S 1,100 $267.35 $294.09K 111,737 Direct
05 Jun, 2026 James Stanley Anderson Senior Vice President Disposed S 4,177 $268.42 $1.12Mn 107,560 Direct
05 Jun, 2026 James Stanley Anderson Senior Vice President Disposed S 4,401 $269.22 $1.18Mn 103,159 Direct
05 Jun, 2026 James Stanley Anderson Senior Vice President Disposed S 322 $269.93 $86.92K 102,837 Direct
01 Jun, 2026 Kenneth W. Cornew Director Acquired A 712 $0.00 $0 32,011 Direct
01 Jun, 2026 Sheree L Bargabos Director Acquired A 712 $0.00 $0 27,062 Direct
01 Jun, 2026 Traci M Dolan Director Acquired A 712 $0.00 $0 58,868 Direct
01 Jun, 2026 Luis Manuel Sierra Director Acquired A 712 $0.00 $0 11,516 Direct
01 Jun, 2026 Jennifer L Hamann Director Acquired A 712 $0.00 $0 5,286 Direct
01 Jun, 2026 Bradley S Seaman Director Acquired A 712 $0.00 $0 51,491 Direct
13 May, 2026 Christopher A Graham Senior Vice President Disposed S 2,999 $236.52 $709.32K 74,748 Direct
14 May, 2026 Richard A Poinsatte Senior Vice President Disposed G 200 $0.00 $0 28,418 Direct