Reliance Steel & Aluminum Co.
Reliance Steel & Aluminum Co. (RS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · RS · as of Sep 30, 2025
Ownership Breakdown
655
Institutional Holders
▲ 19 vs Q2
$11.66B
Total Inst. Value
▼ $1.82B vs Q2
51.05M
Shares Outstanding
freeFloat 99.54%
41.54M
13F Shares Held
▼ 1.40M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
RS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC wholesale-metals service centers & of fices | 6.14M | 11.61% | 11.61% | $1.72T | Nov 7, 2025 | ▼ 18.6K |
BLACKROCK, INC. wholesale-metals service centers & of fices | 5.70M | 10.78% | 10.78% | $1.60T | Nov 12, 2025 | ▼ 155.4K |
STATE STREET CORP wholesale-metals service centers & of fices | 2.60M | 4.92% | 4.92% | $729.53B | Nov 14, 2025 | ▲ 166.2K |
BOSTON PARTNERS wholesale-metals service centers & of fices | 2.25M | 4.25% | 4.25% | $631.22B | Nov 13, 2025 | ▲ 484.3K |
WELLINGTON MANAGEMENT GROUP LLP wholesale-metals service centers & of fices | 1.71M | 3.23% | 3.23% | $479.87B | Nov 14, 2025 | ▲ 343.6K |
FRANKLIN RESOURCES INC wholesale-metals service centers & of fices | 1.14M | 2.16% | 2.16% | $320.86B | Nov 13, 2025 | ▲ 51.9K |
PRICE T ROWE ASSOCIATES INC /MD/ wholesale-metals service centers & of fices | 962.4K | 1.82% | 1.82% | $270.27B | Nov 14, 2025 | ▼ 2.36M |
GEODE CAPITAL MANAGEMENT, LLC wholesale-metals service centers & of fices | 936.1K | 1.77% | 1.77% | $262.08B | Nov 12, 2025 | ▲ 11.4K |
PRINCIPAL FINANCIAL GROUP INC wholesale-metals service centers & of fices | 755.8K | 1.43% | 1.43% | $212.24B | Nov 4, 2025 | ▲ 30.8K |
ALLIANCEBERNSTEIN L.P. wholesale-metals service centers & of fices | 733.5K | 1.39% | 1.39% | $206.00B | Nov 14, 2025 | ▲ 660.1K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
28
Increased
+3.04M shares0
New Positions
first time holders22
Decreased
−3.32M shares0
Sold Out
fully exitedNet shares change (top 50)
276.2K
+3.04M / −3.32M
Net new holders
+6
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
RS insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
3
Sell transactions
2.67
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Sznewajs John G director | May 20, 2026 | Award | 469 | — | — | 469 | Form 4 ↗ |
Stotlar Douglas director | May 20, 2026 | Award | 469 | — | — | 469 | Form 4 ↗ |
Seeger David W director | May 20, 2026 | Award | 469 | — | — | 2.9K | Form 4 ↗ |
McEvoy Robert Ambrose director | May 20, 2026 | Award | 469 | — | — | 23.3K | Form 4 ↗ |
Kamsickas James Kevin director | May 20, 2026 | Award | 469 | — | — | 1.0K | Form 4 ↗ |
DELLAQUILA FRANK J director | May 20, 2026 | Award | 469 | — | — | 2.9K | Form 4 ↗ |
Colonias Karen Winifred director | May 20, 2026 | Award | 469 | — | — | 469 | Form 4 ↗ |
Baldwin Lisa director | May 20, 2026 | Award | 469 | — | — | 5.1K | Form 4 ↗ |
Ajemyan Arthur SVP, CFO | Apr 27, 2026 | Sale | 1,822 | $357.61 | $651.6K | 18.5K | Form 4 ↗ |
Ajemyan Arthur SVP, CFO | Apr 27, 2026 | Sale | 1,604 | $358.64 | $575.3K | 16.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Reliance Steel & Aluminum Co. (RS) is primarily owned by institutional investors, who hold approximately 81.4% of total shares outstanding. Company insiders own approximately 0.46%, while retail and public investors account for the remaining 18.17%.
The largest institutional shareholder of Reliance Steel & Aluminum Co. is VANGUARD GROUP INC, holding approximately 6.14 million shares — equal to 11.61% of outstanding shares — as of September 30, 2025.
A total of 655 institutional investors currently hold RS stock, with a combined institutional value of approximately $11.66 billion as of the most recent 13F filing period.
Frequently asked questions
RS ownershipReliance Steel & Aluminum Co. (RS) is primarily owned by institutional investors, who hold approximately 81.4% of shares. The largest shareholder is VANGUARD GROUP INC with a 11.61% stake. Company insiders hold 0.46%. Data sourced from SEC Form 13F as of September 30, 2025.