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Institutional Ownership · SEC Form 13F

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.

192
Institutional holders
49M
Shares held (tracked funds)

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. added4,794,759$108M9.3%2026-Q1
Platinum Equity Advisors, LLC/DE3,924,478$88M7.6%2026-Q1
DIMENSIONAL FUND ADVISORS LP added3,176,442$71M6.2%2026-Q1
FRANKLIN RESOURCES INC added3,032,179$68M5.9%2026-Q1
JB CAPITAL PARTNERS LP added2,839,059$64M5.5%2026-Q1
STATE STREET CORP added2,477,685$56M4.8%2026-Q1
AMERICAN CENTURY COMPANIES INC added2,146,422$48M4.2%2026-Q1
DONALD SMITH & CO., INC. added1,956,933$44M3.8%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new1,939,899$44M3.8%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added1,528,588$34M3.0%2026-Q1
FRONTIER CAPITAL MANAGEMENT CO LLC added1,517,062$34M2.9%2026-Q1
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed1,263,190$28M2.5%2026-Q1
GOLDMAN SACHS GROUP INC added1,146,330$26M2.2%2026-Q1
AEGIS FINANCIAL CORP added1,116,978$25M2.2%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added1,061,499$24M2.1%2026-Q1
VICTORY CAPITAL MANAGEMENT INC added1,057,400$24M2.1%2026-Q1
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. new909,798$20M1.8%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added852,933$19M1.7%2026-Q1
AMERIPRISE FINANCIAL INC added826,425$19M1.6%2026-Q1
Invenomic Capital Management LP trimmed644,284$14M1.2%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new430,169$10M0.8%2026-Q1
NORTHERN TRUST CORP added420,426$9M0.8%2026-Q1
Allianz Asset Management GmbH added420,008$9M0.8%2026-Q1
Bank of New York Mellon Corp added412,185$9M0.8%2026-Q1
BRIDGEWAY CAPITAL MANAGEMENT, LLC added408,116$9M0.8%2026-Q1
Empowered Funds, LLC added407,989$9M0.8%2026-Q1
MORGAN STANLEY added360,600$8M0.7%2026-Q1
D. E. Shaw & Co., Inc. added316,212$7M0.6%2026-Q1
SummitTX Capital, L.P. added289,584$7M0.6%2026-Q1
VANGUARD FIDUCIARY TRUST CO new288,503$6M0.6%2026-Q1
TWO SIGMA INVESTMENTS, LP added268,541$6M0.5%2026-Q1
Nuveen, LLC added267,486$6M0.5%2026-Q1
GRIZZLYROCK CAPITAL, LLC trimmed260,007$6M0.5%2026-Q1
AQR CAPITAL MANAGEMENT LLC added259,086$6M0.5%2026-Q1
CSM Advisors, LLC new256,043$6M0.5%2026-Q1
TOWLE & CO trimmed251,190$6M0.5%2026-Q1
MAI Capital Management added216,179$5M0.4%2026-Q1
FMR LLC added194,070$4M0.4%2026-Q1
ROBOTTI ROBERT added192,300$4M0.4%2026-Q1
MILLENNIUM MANAGEMENT LLC added184,202$4M0.4%2026-Q1
SEI INVESTMENTS CO added166,632$4M0.3%2026-Q1
Ancora Advisors LLC added151,992$3M0.3%2026-Q1
Cerity Partners LLC new150,546$3M0.3%2026-Q1
CenterBook Partners LP added147,069$3M0.3%2026-Q1
XTX Topco Ltd added137,035$3M0.3%2026-Q1
Hudson Bay Capital Management LP new127,055$3M0.2%2026-Q1
UBS Group AG added116,263$3M0.2%2026-Q1
CDC Financial, Inc. trimmed114,160$3M0.2%2026-Q1
JPMORGAN CHASE & CO added110,567$2M0.2%2026-Q1
DEUTSCHE BANK AG\ added107,572$2M0.2%2026-Q1
Swiss National Bank added91,200$2M0.2%2026-Q1
Trexquant Investment LP added90,705$2M0.2%2026-Q1
BANK OF AMERICA CORP /DE/ added88,468$2M0.2%2026-Q1
Invesco Ltd. added86,924$2M0.2%2026-Q1
BETO FINANCIAL GROUP, LLC new73,880$2M0.2%2026-Q1
COMMONWEALTH EQUITY SERVICES, LLC new86,701$2M0.2%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added86,583$2M0.2%2026-Q1
FIFTH THIRD BANCORP new86,324$2M0.2%2026-Q1
Russell Investments Group, Ltd. added82,477$2M0.2%2026-Q1
GRACE & WHITE INC /NY76,567$2M0.1%2026-Q1
RENAISSANCE TECHNOLOGIES LLC trimmed74,138$2M0.1%2026-Q1
HRT FINANCIAL LP added69,822$2M0.1%2026-Q1
JACOBS LEVY EQUITY MANAGEMENT, INC trimmed68,050$2M0.1%2026-Q1
WEDGE CAPITAL MANAGEMENT L L P/NC added67,780$2M0.1%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ added64,191$1M0.1%2026-Q1
Covestor Ltd added63,592$1M0.1%2026-Q1
Vanguard Global Advisers, LLC new61,015$1M0.1%2026-Q1
RHUMBLINE ADVISERS added57,206$1M0.1%2026-Q1
Atom Investors LP added51,458$1M0.1%2026-Q1
ALLIANCEBERNSTEIN L.P. added42,400$1M0.1%2026-Q1
Mutual Advisors, LLC added47,250$1M0.1%2026-Q1
Quantinno Capital Management LP added46,340$1M0.1%2026-Q1
HANTZ FINANCIAL SERVICES, INC. trimmed38,280$861K0.1%2026-Q1
BARCLAYS PLC trimmed37,931$853K0.1%2026-Q1
JANE STREET GROUP, LLC added36,312$816K0.1%2026-Q1
LOS ANGELES CAPITAL MANAGEMENT LLC added35,403$796K0.1%2026-Q1
DBA TRADING, LLC35,000$787K0.1%2026-Q1
Tidal Investments LLC new32,577$732K0.1%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added31,539$709K0.1%2026-Q1
SummerHaven Investment Management, LLC trimmed30,213$679K0.1%2026-Q1
Prescott General Partners LLC30,000$674K0.1%2026-Q1
VANGUARD ASSET MANAGEMENT, Ltd new29,901$672K0.1%2026-Q1
STATE OF WISCONSIN INVESTMENT BOARD added29,526$664K0.1%2026-Q1
VANGUARD GROUP INC trimmed1,456,793$37M3.2%2025-Q4 stale
MACQUARIE GROUP LTD trimmed943,346$22M1.9%2025-Q3 stale
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed331,475$7M0.6%2025-Q2 stale
Cambria Investment Management, L.P. trimmed296,637$7M0.6%2025-Q3 stale
Brandywine Global Investment Management, LLC trimmed129,480$3M0.3%2025-Q4 stale
TWO SIGMA ADVISERS, LP added85,300$2M0.2%2025-Q4 stale
Walleye Capital LLC added66,584$2M0.1%2025-Q4 stale
Fisher Asset Management, LLC trimmed51,611$1M0.1%2025-Q3 stale
CastleKnight Management LP trimmed54,300$1M0.1%2025-Q2 stale
COMERICA BANK added46,013$1M0.1%2025-Q4 stale
VAN ECK ASSOCIATES CORP added48,691$1M0.1%2025-Q3 stale
TEACHER RETIREMENT SYSTEM OF TEXAS trimmed41,890$1M0.1%2025-Q4 stale
CWA Asset Management Group, LLC added44,706$1M0.1%2025-Q3 stale
AlphaQuest LLC added36,114$909K0.1%2025-Q4 stale
Unison Advisors LLC added38,579$882K0.1%2025-Q3 stale
BAILARD, INC. added31,900$729K0.1%2025-Q3 stale
SHELTON CAPITAL MANAGEMENT trimmed26,624$670K0.1%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.

HoldersTotal shares

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.

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