Activity Companies Alerts About

Mark D. Millett owns 2.10% of Steel Dynamics

3,016,401 shares as of the July 28, 2026 filing, worth $726M at the latest close.

STLD · $34.5B market cap · Founder-led
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Free.
The stake
2.10%
worth $726M at the latest close
Stake rank
#123
by dollar value of the stake
Last sale
1,866 days ago
Sep 9, 2021
Last buy
None
no purchases since 2021

Mark D. Millett owns 2.10% of STEEL DYNAMICS INC: 3,016,401 of 143,328,088 shares, worth about $726M at the 2026-10-16 close. The stake has moved from 1.22% in 2016 to 2.10% on 2026-07-28, across 3 sales and 0 purchases that moved it since 2016. The last trade that moved it was a sale of $4.5M on 2021-09-09.

How the stake is held

as of the Jul 28, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Jul 28, 2026 · Form 4 ↗
HELD DIRECTLY
3,016,401
100.0%
THE STAKE
3,016,401
2.10%