Who owns Ryerson Holding (RYZ)
Which tracked institutional funds hold RYZ, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See RYZ company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
62 tracked funds added or opened RYZ while 33 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
RYZ’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes RYZ more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in RYZ divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 188 tracked filers holding RYZ, 111 increased or opened the position and 92 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in RYZ between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 10
- Assenagon Asset Management S.A.$4M
- Verition Fund Management LLC$3M
- Numerai GP LLC$2M
- PDT Partners, LLC$2M
- Walleye Capital LLC$2M
- CastleKnight Management LP$613K
Full exits 16
- CSM Advisors, LLC$6M
- MILLENNIUM MANAGEMENT LLC$4M
- Hudson Bay Capital Management LP$3M
- Trexquant Investment LP$2M
- HRT FINANCIAL LP$2M
- JACOBS LEVY EQUITY MANAGEMENT, INC$2M
Largest adds
- FRANKLIN RESOURCES INC$25M
- BlackRock, Inc.$13M
- Nuveen, LLC$11M
- Platinum Equity Advisors, LLC/DE$8M
- AMERIPRISE FINANCIAL INC$8M
- FRONTIER CAPITAL MANAGEMENT CO LLC$7M
Largest trims
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$15M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC$6M
- DIMENSIONAL FUND ADVISORS LP$5M
- CenterBook Partners LP$3M
- AMERICAN CENTURY COMPANIES INC$2M
- Invenomic Capital Management LP$2M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 4,891,419 | $120M | 10.2% | 2026-Q2 |
| Platinum Equity Advisors, LLC/DE | 3,924,478 | $97M | 8.2% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 3,791,237 | $93M | 7.9% | 2026-Q2 |
| JB CAPITAL PARTNERS LP | 2,839,059 | $70M | 5.9% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,696,963 | $66M | 5.6% | 2026-Q2 |
| STATE STREET CORP trimmed | 2,205,813 | $54M | 4.6% | 2026-Q2 |
| DONALD SMITH & CO., INC. added | 1,992,517 | $49M | 4.2% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,958,273 | $48M | 4.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 1,861,721 | $46M | 3.9% | 2026-Q2 |
| FRONTIER CAPITAL MANAGEMENT CO LLC added | 1,683,408 | $41M | 3.5% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 1,370,007 | $34M | 2.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,165,452 | $29M | 2.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,155,870 | $28M | 2.4% | 2026-Q2 |
| AEGIS FINANCIAL CORP | 1,116,978 | $27M | 2.3% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 1,086,384 | $27M | 2.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 1,062,435 | $26M | 2.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 1,029,222 | $25M | 2.2% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 907,042 | $22M | 1.9% | 2026-Q2 |
| Nuveen, LLC added | 701,623 | $17M | 1.5% | 2026-Q2 |
| Invenomic Capital Management LP trimmed | 508,048 | $13M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 449,985 | $11M | 0.9% | 2026-Q2 |
| Allianz Asset Management GmbH added | 447,880 | $11M | 0.9% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 439,970 | $11M | 0.9% | 2026-Q2 |
| Bank of New York Mellon Corp added | 434,438 | $11M | 0.9% | 2026-Q2 |
| Empowered Funds, LLC trimmed | 407,803 | $10M | 0.9% | 2026-Q2 |
| FMR LLC added | 406,590 | $10M | 0.8% | 2026-Q2 |
| MORGAN STANLEY added | 387,854 | $10M | 0.8% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 381,812 | $9M | 0.8% | 2026-Q2 |
| ROBOTTI ROBERT added | 369,849 | $9M | 0.8% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 313,790 | $8M | 0.7% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 308,533 | $8M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 294,137 | $7M | 0.6% | 2026-Q2 |
| Cerity Partners LLC added | 276,883 | $7M | 0.6% | 2026-Q2 |
| GRIZZLYROCK CAPITAL, LLC trimmed | 248,007 | $6M | 0.5% | 2026-Q2 |
| TOWLE & CO trimmed | 234,573 | $6M | 0.5% | 2026-Q2 |
| SummitTX Capital, L.P. trimmed | 233,412 | $6M | 0.5% | 2026-Q2 |
| MAI Capital Management trimmed | 215,874 | $5M | 0.5% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 203,819 | $5M | 0.4% | 2026-Q2 |
| UBS Group AG added | 190,240 | $5M | 0.4% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 156,985 | $4M | 0.3% | 2026-Q2 |
| Assenagon Asset Management S.A. added | 153,721 | $4M | 0.3% | 2026-Q2 |
| Ancora Advisors LLC | 151,992 | $4M | 0.3% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 130,711 | $3M | 0.3% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 115,845 | $3M | 0.2% | 2026-Q2 |
| Man Group plc added | 108,888 | $3M | 0.2% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 102,783 | $3M | 0.2% | 2026-Q2 |
| Verition Fund Management LLC added | 102,080 | $3M | 0.2% | 2026-Q2 |
| FIFTH THIRD BANCORP added | 95,603 | $2M | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 94,864 | $2M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 88,200 | $2M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 86,588 | $2M | 0.2% | 2026-Q2 |
| Numerai GP LLC new | 86,376 | $2M | 0.2% | 2026-Q2 |
| XTX Topco Ltd trimmed | 84,131 | $2M | 0.2% | 2026-Q2 |
| Atom Investors LP added | 80,434 | $2M | 0.2% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 80,174 | $2M | 0.2% | 2026-Q2 |
| CDC Financial, Inc. trimmed | 78,446 | $2M | 0.2% | 2026-Q2 |
| Invesco Ltd. trimmed | 78,240 | $2M | 0.2% | 2026-Q2 |
| GRACE & WHITE INC /NY | 76,567 | $2M | 0.2% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 76,049 | $2M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 73,397 | $2M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 70,695 | $2M | 0.1% | 2026-Q2 |
| PDT Partners, LLC new | 66,901 | $2M | 0.1% | 2026-Q2 |
| Walleye Capital LLC trimmed | 61,953 | $2M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 61,180 | $2M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 60,379 | $1M | 0.1% | 2026-Q2 |
| BETO FINANCIAL GROUP, LLC trimmed | 58,880 | $2M | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 56,112 | $1M | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP added | 55,908 | $1M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 55,800 | $1M | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 53,939 | $1M | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 53,835 | $1M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 51,716 | $1M | 0.1% | 2026-Q2 |
| Mutual Advisors, LLC trimmed | 47,240 | $1M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 47,223 | $1M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 44,515 | $1M | 0.1% | 2026-Q2 |
| Legal & General Group Plc added | 40,848 | $1M | 0.1% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 35,502 | $874K | 0.1% | 2026-Q2 |
| DBA TRADING, LLC | 35,000 | $787K | 0.1% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 34,473 | $848K | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 34,042 | $838K | 0.1% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 33,673 | $838K | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC added | 33,309 | $820K | 0.1% | 2026-Q2 |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 33,035 | $813K | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 32,971 | $811K | 0.1% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 30,437 | $749K | 0.1% | 2026-Q2 |
| SummerHaven Investment Management, LLC | 30,213 | $744K | 0.1% | 2026-Q2 |
| Prescott General Partners LLC | 30,000 | $738K | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd | 29,901 | $736K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 29,872 | $735K | 0.1% | 2026-Q2 |
| CenterBook Partners LP trimmed | 28,096 | $691K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 26,862 | $661K | 0.1% | 2026-Q2 |
| CastleKnight Management LP trimmed | 24,900 | $613K | 0.1% | 2026-Q2 |
| GREAT LAKES ADVISORS, LLC new | 23,946 | $589K | 0.1% | 2026-Q2 |
| Jain Global LLC new | 22,284 | $548K | 0.0% | 2026-Q2 |
| ExodusPoint Capital Management, LP trimmed | 21,566 | $531K | 0.0% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 20,828 | $513K | 0.0% | 2026-Q2 |
| Jupiter Topco LLC new | 20,363 | $501K | 0.0% | 2026-Q2 |
| Ethic Inc. added | 20,172 | $496K | 0.0% | 2026-Q2 |
| Aquatic Capital Management LLC added | 18,937 | $466K | 0.0% | 2026-Q2 |
| Odyssean, LLC trimmed | 18,154 | $447K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.