Ryerson Holding Corp - Common Stock, $0.01 par value, 100,000,000 shares authorized (RYZ)

Q: What does CUSIP 783754104 represent in this 13F holders report?

CUSIP 783754104 is the security identifier for RYZ - Ryerson Holding Corp - Common Stock, $0.01 par value, 100,000,000 shares authorized used to aggregate holder disclosures.

Q: How many institutions held RYZ - Ryerson Holding Corp - Common Stock, $0.01 par value, 100,000,000 shares authorized in Q1 2019?

91 institutional investors reported RYZ - Ryerson Holding Corp - Common Stock, $0.01 par value, 100,000,000 shares authorized for Q1 2019. Use the holders table for investor-level position and value details.

CUSIP: 783754104

Q1 2019 13F Holders as of 31 Mar 2019

Security type / class: Equity / Common Stock, $0.01 par value, 100,000,000 shares authorized
Total 13F shares: 13,553,297
Total 13F value: $116,014,006
Share change: +267,201
SEC-reported price per share: $8.56
Number of holders: 91
Value change: +$2,689,054
Number of buys: 46
Number of sells: 44
Shares outstanding: 51,934,753

Security key

783754104

Report period

Q1 2019

Institutions

Top holders

RYZ full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Ryerson Holding Corp SEC filings Ryerson Holding Corp company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 783754104

Newer quarter: Q4 2025

Recent filing periods:

Q2 2026 Q4 2025

Ownership snapshot

Top reported holders of RYZ - Ryerson Holding Corp - Common Stock, $0.01 par value, 100,000,000 shares authorized (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

TOWLE & CO

Disclosed value leader

TOWLE & CO

Comparable rows

15/15

Latest evidence

31 Dec 2018

13F Lead comparable stake: 4.3% Showing 1-6 of 15 holder rows.

Quick read

TOWLE & CO leads the comparable SEC ownership view at 4.3%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens TOWLE & CO's linked filing trail.

Comparable ownership Top 5

TOWLE & CO 4.3%

BlackRock Finance, Inc. 3.3%

DIMENSIONAL FUND ADVISORS LP 2.5%

VANGUARD GROUP INC 1.7%

LUMINUS MANAGEMENT LLC 1.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
TOWLE & CO	13F Company 13F	4.3%	$14,073,000 2,219,642 shares	—	31 Dec 2018
BlackRock Finance, Inc.	13F Company 13F	3.3%	$10,872,000 1,715,202 shares	—	31 Dec 2018
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	2.5%	$8,211,000 1,295,114 shares	—	31 Dec 2018
VANGUARD GROUP INC	13F Company 13F	1.7%	$5,448,000 859,282 shares	—	31 Dec 2018
LUMINUS MANAGEMENT LLC	13F Company 13F	1.5%	$5,014,000 790,870 shares	—	31 Dec 2018
FMR LLC	13F Company 13F	1.4%	$4,511,000 711,574 shares	—	31 Dec 2018

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

13,553,297

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2019 vs Q4 2025 Across Filers

Q4 2025 holders

144

Q1 2019 holders

Holder diff

-53

Investor	Q4 2025 Shares	Q1 2019 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2019 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend