STEEL DYNAMICS INC (STLD): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in STLD · Materials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
28
13F filers
Aggregate Value
$1.0B
Across holders
Last Price
$229.27
2026-08-24
Sector
Materials
GICS
Quarterly fund activity17 increased11 reduced2 exited
Full exits: Alphadyne Asset Management LP, MARSHALL WACE, LLP
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 1.65M | $378.3M | 36.1% | 0.9% | Reduced | $-146.9M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 808K | $185.3M | 17.7% | 0.0% | Added | +$156.8M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 394K | $90.4M | 8.6% | 0.1% | Added | +$34.5M | Q2 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 378K | $86.8M | 8.3% | 0.4% | Reduced | $-13.7M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 352K | $80.7M | 7.7% | 0.0% | Added | +$75.6M | Q2 2026 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC CIK 0001556921 | Hedge Fund | 225K | $51.5M | 4.9% | 0.2% | Added | +$45.8M | Q2 2026 |
| Fisher Asset Management, LLC CIK 0000850529 | Institutional Manager | 134K | $30.6M | 2.9% | 0.0% | Added | +$3.7M | Q2 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 120K | $27.4M | 2.6% | 0.1% | Added | +$7.1M | Q2 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 116K | $26.6M | 2.5% | 0.0% | Reduced | $-20.0M | Q2 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 114K | $26.2M | 2.5% | 0.0% | Added | +$20.4M | Q2 2026 |
Reduced
Hedge Fund
$378.3M· 36.1% of total· 0.9% port· 1.65M sh· $-146.9M QoQ· Q2 2026
Added
Hedge Fund
$185.3M· 17.7% of total· 0.0% port· 808K sh· +$156.8M QoQ· Q2 2026
Added
Hedge Fund
$90.4M· 8.6% of total· 0.1% port· 394K sh· +$34.5M QoQ· Q2 2026
Reduced
Hedge Fund
$86.8M· 8.3% of total· 0.4% port· 378K sh· $-13.7M QoQ· Q2 2026
Added
Hedge Fund
$80.7M· 7.7% of total· 0.0% port· 352K sh· +$75.6M QoQ· Q2 2026
Added
Hedge Fund
$51.5M· 4.9% of total· 0.2% port· 225K sh· +$45.8M QoQ· Q2 2026
Added
Institutional Manager
$30.6M· 2.9% of total· 0.0% port· 134K sh· +$3.7M QoQ· Q2 2026
Added
Hedge Fund
$27.4M· 2.6% of total· 0.1% port· 120K sh· +$7.1M QoQ· Q2 2026
Reduced
Hedge Fund
$26.6M· 2.5% of total· 0.0% port· 116K sh· $-20.0M QoQ· Q2 2026
Added
Hedge Fund
$26.2M· 2.5% of total· 0.0% port· 114K sh· +$20.4M QoQ· Q2 2026
Reduced
Institutional Manager
$13.6M· 1.3% of total· 0.0% port· 59K sh· $-8.1M QoQ· Q2 2026
Added
Hedge Fund
$10.3M· 1.0% of total· 0.0% port· 45K sh· +$8.3M QoQ· Q2 2026
Added
Hedge Fund
$9.8M· 0.9% of total· 0.0% port· 43K sh· +$8.9M QoQ· Q2 2026
Reduced
Hedge Fund
$6.8M· 0.7% of total· 0.0% port· 30K sh· $-4.5M QoQ· Q2 2026
Added
Hedge Fund
$6.3M· 0.6% of total· 0.0% port· 45K sh· — QoQ· Q3 2025
Added
Hedge Fund
$5.4M· 0.5% of total· 0.0% port· 24K sh· $-14.7M QoQ· Q2 2026
Reduced
Hedge Fund
$3.8M· 0.4% of total· 0.0% port· 16K sh· $-4.4M QoQ· Q2 2026
Added
Hedge Fund
$1.5M· 0.1% of total· 0.0% port· 6K sh· — QoQ· Q2 2026
Added
Hedge Fund
$1.4M· 0.1% of total· 0.0% port· 6K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$1.4M· 0.1% of total· 0.0% port· 6K sh· $-3.6M QoQ· Q2 2026
Reduced
Hedge Fund
$1.3M· 0.1% of total· 0.0% port· 6K sh· $-4.7M QoQ· Q2 2026
Reduced
Hedge Fund
$908K· 0.1% of total· 0.0% port· 4K sh· $-50.1M QoQ· Q2 2026
Added
Hedge Fund
$707K· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
Added
Hedge Fund
$529K· 0.1% of total· 0.0% port· 2K sh· $-297K QoQ· Q2 2026
Added
Hedge Fund
$520K· 0.0% of total· 0.0% port· 2K sh· +$3K QoQ· Q2 2026
Reduced
Hedge Fund
$253K· 0.0% of total· 0.0% port· 1K sh· $-25K QoQ· Q2 2026
Reduced
Hedge Fund
$11K· 0.0% of total· 0.0% port· 50 sh· $-21K QoQ· Q2 2026
Added
Hedge Fund
$2K· 0.0% of total· 0.0% port· 10 sh· — QoQ· Q2 2026
1–10 of 28
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