Who owns Reliance Steel & Aluminum Co.?
Institutional ownership of RS from SEC Form 13F filings across 415 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
415
13F holders
$11.31B
value, 2026 filers
64.1%
of shares outstanding (32.7M sh)
47
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of RS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.8M | $2.17B | 0.0% | 11.4% | -0.4% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.3M | $1.23B | 0.1% | 6.4% | -2.6% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.3M | $862.4M | 0.0% | 4.5% | -50.4% |
| 4 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.5M | $576,345 | 0.1% | 3% | +0.8% |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | 1.3M | $497.0M | 0.1% | 2.6% | -7.7% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 953,533 | $355.2M | 0.0% | 1.9% | -1.7% |
| 7 | FRANKLIN RESOURCES INC | 832,230 | $310.9M | 0.1% | 1.6% | -21.4% |
| 8 | ALLIANCEBERNSTEIN L.P. | 722,478 | $219.6M | 0.1% | 1.4% | -4.8% |
| 9 | PRINCIPAL FINANCIAL GROUP INC | 657,688 | $245.7M | 0.1% | 1.3% | -8.7% |
| 10 | NORGES BANKNEW | 653,621 | $244.2M | 0.0% | 1.3% | new |
| 11 | JPMORGAN CHASE & CO | 625,356 | $235.0M | 0.0% | 1.2% | +27.2% |
| 12 | MORGAN STANLEY | 576,265 | $215.3M | 0.0% | 1.1% | -0.7% |
| 13 | AMERICAN CENTURY COMPANIES INC | 481,435 | $179.9M | 0.1% | 0.9% | -11.0% |
| 14 | NORTHERN TRUST CORP | 473,677 | $177.0M | 0.0% | 0.9% | -11.2% |
| 15 | Bank of New York Mellon Corp | 473,536 | $176.9M | 0.0% | 0.9% | -6.6% |
| 16 | Sixth Street Partners Management Company, L.P.NEW | 431,536 | $161.2M | 27.8% | 0.8% | new |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 431,536 | $161.2M | 0.0% | 0.8% | -1.4% |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 416,997 | $155.8M | 0.2% | 0.8% | +8.7% |
| 19 | Nuveen, LLC | 400,979 | $149.8M | 0.0% | 0.8% | -4.6% |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 394,427 | $147.4M | 0.0% | 0.8% | -2.5% |
| 21 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 382,494 | $142.9M | 0.4% | 0.7% | -5.2% |
| 22 | Corient Private Wealth LP | 347,427 | $129.8M | 0.2% | 0.7% | -0.2% |
| 23 | TWO SIGMA INVESTMENTS, LP | 335,144 | $125.2M | 0.1% | 0.7% | +327.4% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 323,076 | $120.7M | 0.0% | 0.6% | -0.2% |
| 25 | ACADIAN ASSET MANAGEMENT LLC | 310,240 | $115,875 | 0.1% | 0.6% | +2146.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.