Who owns Ryerson Holding Corporation (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-Q1 13F filings. 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
65 tracked funds added or opened RYZ while 25 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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 2025-Q4 and 2026-Q1, across 192 tracked filers holding RYZ, 164 increased or opened the position and 42 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 2025-Q4 and 2026-Q1 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 20
- VANGUARD CAPITAL MANAGEMENT LLC$44M
- NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$20M
- VANGUARD PORTFOLIO MANAGEMENT LLC$10M
- VANGUARD FIDUCIARY TRUST CO$6M
- CSM Advisors, LLC$6M
- ROBOTTI ROBERT$4M
Full exits 10
- VANGUARD GROUP INC$37M
- Brandywine Global Investment Management, LLC$3M
- TWO SIGMA ADVISERS, LP$2M
- Walleye Capital LLC$2M
- COMERICA BANK$1M
- TEACHER RETIREMENT SYSTEM OF TEXAS$1M
Largest adds
- BlackRock, Inc.$28M
- FRONTIER CAPITAL MANAGEMENT CO LLC$25M
- DIMENSIONAL FUND ADVISORS LP$23M
- STATE STREET CORP$22M
- AMERICAN CENTURY COMPANIES INC$17M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$9M
Largest trims
- Platinum Equity Advisors, LLC/DE$11M
- MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$8M
- JACOBS LEVY EQUITY MANAGEMENT, INC$6M
- TOWLE & CO$4M
- FRANKLIN RESOURCES INC$4M
- DONALD SMITH & CO., INC.$4M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 4,794,759 | $108M | 9.3% | 2026-Q1 |
| Platinum Equity Advisors, LLC/DE | 3,924,478 | $88M | 7.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,176,442 | $71M | 6.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 3,032,179 | $68M | 5.9% | 2026-Q1 |
| JB CAPITAL PARTNERS LP added | 2,839,059 | $64M | 5.5% | 2026-Q1 |
| STATE STREET CORP added | 2,477,685 | $56M | 4.8% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 2,146,422 | $48M | 4.2% | 2026-Q1 |
| DONALD SMITH & CO., INC. added | 1,956,933 | $44M | 3.8% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,939,899 | $44M | 3.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,528,588 | $34M | 3.0% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC added | 1,517,062 | $34M | 2.9% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 1,263,190 | $28M | 2.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,146,330 | $26M | 2.2% | 2026-Q1 |
| AEGIS FINANCIAL CORP added | 1,116,978 | $25M | 2.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,061,499 | $24M | 2.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 1,057,400 | $24M | 2.1% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. new | 909,798 | $20M | 1.8% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 852,933 | $19M | 1.7% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 826,425 | $19M | 1.6% | 2026-Q1 |
| Invenomic Capital Management LP trimmed | 644,284 | $14M | 1.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 430,169 | $10M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 420,426 | $9M | 0.8% | 2026-Q1 |
| Allianz Asset Management GmbH added | 420,008 | $9M | 0.8% | 2026-Q1 |
| Bank of New York Mellon Corp added | 412,185 | $9M | 0.8% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 408,116 | $9M | 0.8% | 2026-Q1 |
| Empowered Funds, LLC added | 407,989 | $9M | 0.8% | 2026-Q1 |
| MORGAN STANLEY added | 360,600 | $8M | 0.7% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 316,212 | $7M | 0.6% | 2026-Q1 |
| SummitTX Capital, L.P. added | 289,584 | $7M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 288,503 | $6M | 0.6% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 268,541 | $6M | 0.5% | 2026-Q1 |
| Nuveen, LLC added | 267,486 | $6M | 0.5% | 2026-Q1 |
| GRIZZLYROCK CAPITAL, LLC trimmed | 260,007 | $6M | 0.5% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 259,086 | $6M | 0.5% | 2026-Q1 |
| CSM Advisors, LLC new | 256,043 | $6M | 0.5% | 2026-Q1 |
| TOWLE & CO trimmed | 251,190 | $6M | 0.5% | 2026-Q1 |
| MAI Capital Management added | 216,179 | $5M | 0.4% | 2026-Q1 |
| FMR LLC added | 194,070 | $4M | 0.4% | 2026-Q1 |
| ROBOTTI ROBERT added | 192,300 | $4M | 0.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 184,202 | $4M | 0.4% | 2026-Q1 |
| SEI INVESTMENTS CO added | 166,632 | $4M | 0.3% | 2026-Q1 |
| Ancora Advisors LLC added | 151,992 | $3M | 0.3% | 2026-Q1 |
| Cerity Partners LLC new | 150,546 | $3M | 0.3% | 2026-Q1 |
| CenterBook Partners LP added | 147,069 | $3M | 0.3% | 2026-Q1 |
| XTX Topco Ltd added | 137,035 | $3M | 0.3% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 127,055 | $3M | 0.2% | 2026-Q1 |
| UBS Group AG added | 116,263 | $3M | 0.2% | 2026-Q1 |
| CDC Financial, Inc. trimmed | 114,160 | $3M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 110,567 | $2M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 107,572 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 91,200 | $2M | 0.2% | 2026-Q1 |
| Trexquant Investment LP added | 90,705 | $2M | 0.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 88,468 | $2M | 0.2% | 2026-Q1 |
| Invesco Ltd. added | 86,924 | $2M | 0.2% | 2026-Q1 |
| BETO FINANCIAL GROUP, LLC new | 73,880 | $2M | 0.2% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC new | 86,701 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 86,583 | $2M | 0.2% | 2026-Q1 |
| FIFTH THIRD BANCORP new | 86,324 | $2M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 82,477 | $2M | 0.2% | 2026-Q1 |
| GRACE & WHITE INC /NY | 76,567 | $2M | 0.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 74,138 | $2M | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 69,822 | $2M | 0.1% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 68,050 | $2M | 0.1% | 2026-Q1 |
| WEDGE CAPITAL MANAGEMENT L L P/NC added | 67,780 | $2M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 64,191 | $1M | 0.1% | 2026-Q1 |
| Covestor Ltd added | 63,592 | $1M | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 61,015 | $1M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 57,206 | $1M | 0.1% | 2026-Q1 |
| Atom Investors LP added | 51,458 | $1M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 42,400 | $1M | 0.1% | 2026-Q1 |
| Mutual Advisors, LLC added | 47,250 | $1M | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 46,340 | $1M | 0.1% | 2026-Q1 |
| HANTZ FINANCIAL SERVICES, INC. trimmed | 38,280 | $861K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 37,931 | $853K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 36,312 | $816K | 0.1% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 35,403 | $796K | 0.1% | 2026-Q1 |
| DBA TRADING, LLC | 35,000 | $787K | 0.1% | 2026-Q1 |
| Tidal Investments LLC new | 32,577 | $732K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 31,539 | $709K | 0.1% | 2026-Q1 |
| SummerHaven Investment Management, LLC trimmed | 30,213 | $679K | 0.1% | 2026-Q1 |
| Prescott General Partners LLC | 30,000 | $674K | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 29,901 | $672K | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 29,526 | $664K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 1,456,793 | $37M | 3.2% | 2025-Q4 stale |
| MACQUARIE GROUP LTD trimmed | 943,346 | $22M | 1.9% | 2025-Q3 stale |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 331,475 | $7M | 0.6% | 2025-Q2 stale |
| Cambria Investment Management, L.P. trimmed | 296,637 | $7M | 0.6% | 2025-Q3 stale |
| Brandywine Global Investment Management, LLC trimmed | 129,480 | $3M | 0.3% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP added | 85,300 | $2M | 0.2% | 2025-Q4 stale |
| Walleye Capital LLC added | 66,584 | $2M | 0.1% | 2025-Q4 stale |
| Fisher Asset Management, LLC trimmed | 51,611 | $1M | 0.1% | 2025-Q3 stale |
| CastleKnight Management LP trimmed | 54,300 | $1M | 0.1% | 2025-Q2 stale |
| COMERICA BANK added | 46,013 | $1M | 0.1% | 2025-Q4 stale |
| VAN ECK ASSOCIATES CORP added | 48,691 | $1M | 0.1% | 2025-Q3 stale |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 41,890 | $1M | 0.1% | 2025-Q4 stale |
| CWA Asset Management Group, LLC added | 44,706 | $1M | 0.1% | 2025-Q3 stale |
| AlphaQuest LLC added | 36,114 | $909K | 0.1% | 2025-Q4 stale |
| Unison Advisors LLC added | 38,579 | $882K | 0.1% | 2025-Q3 stale |
| BAILARD, INC. added | 31,900 | $729K | 0.1% | 2025-Q3 stale |
| SHELTON CAPITAL MANAGEMENT trimmed | 26,624 | $670K | 0.1% | 2025-Q4 stale |
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.