Ryerson Holding Corp RYZ
CIK 0001481582 · CUSIP 783754104
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $107.79M 4,794,759 shares | 0.00% | +1.61M(+50.70%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 02 | Platinum Equity Advisors, LLC/DE CIK 1803274 · View history | $88.22M 3,924,478 shares | 0.99% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2026 | ▾ |
| 03 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $71.41M 3,176,442 shares | 0.01% | +1.26M(+66.20%)Added | SEC filing ↗ May 7, 2026 | ▾ |
| 04 | FRANKLIN RESOURCES INC CIK 38777 · View history | $68.16M 3,032,179 shares | 0.02% | +159.19K(+5.50%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 05 | JB CAPITAL PARTNERS LP CIK 1138532 · View history | $63.82M 2,839,059 shares | 10.99% | +495.58K(+21.10%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $55.70M 2,477,685 shares | 0.00% | +1.13M(+84.00%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 07 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $48.25M 2,146,422 shares | 0.02% | +901.56K(+72.40%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 08 | DONALD SMITH & CO., INC. CIK 814375 · View history | $43.99M 1,956,933 shares | 0.79% | +67.02K(+3.50%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 09 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history | $43.61M 1,939,899 shares | 0.00% | — | SEC filing ↗ May 15, 2026 | ▾ |
| 10 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $34.36M 1,528,588 shares | 0.01% | +399.86K(+35.40%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 11 | FRONTIER CAPITAL MANAGEMENT CO LLC CIK 351173 · View history | $34.10M 1,517,062 shares | 0.35% | +1.14M(+304.60%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 12 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. CIK 1705339 · View history | $28.40M 1,263,190 shares | 0.04% | -165.83K(-11.60%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 13 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $25.77M 1,146,330 shares | 0.00% | +278.05K(+32.00%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 14 | AEGIS FINANCIAL CORP CIK 1140753 · View history | $25.11M 1,116,978 shares | 4.33% | +409.59K(+57.90%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 15 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $23.87M 1,061,499 shares | 0.00% | +415.49K(+64.30%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 16 | VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history | $23.77M 1,057,400 shares | 0.02% | +59.25K(+5.90%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 17 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. CIK 921739 · View history | $20.45M 909,798 shares | 0.04% | +909.80KNew | SEC filing ↗ May 15, 2026 | ▾ |
| 18 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history | $19.17M 852,933 shares | 0.01% | +452.21K(+112.90%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 19 | AMERIPRISE FINANCIAL INC CIK 820027 · Amended · View history | $18.58M 826,425 shares | 0.00% | +403.04K(+95.20%)Added | SEC filing ↗ Jul 17, 2026 | ▾ |
| 20 | Invenomic Capital Management LP CIK 1769456 · View history | $14.48M 644,284 shares | 0.67% | -9.23K(-1.40%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
Showing 20 / 193 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 193 reporting institutions.
This page includes 20 of 193 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 193 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"783754104","quarter":"2026Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.