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 Q4 2024?

139 institutional investors reported RYZ - Ryerson Holding Corp - Common Stock, $0.01 par value, 100,000,000 shares authorized for Q4 2024. Use the holders table for investor-level position and value details.

CUSIP: 783754104

Q4 2024 13F Holders as of 31 Dec 2024

Security type / class: Equity / Common Stock, $0.01 par value, 100,000,000 shares authorized
Total 13F shares: 30,075,008
Total 13F value: $556,787,741
Share change: +404,180
Put/Call ratio: 62%
SEC-reported price per share: $18.51
Number of holders: 139
Value change: +$6,827,409
Number of buys: 63
Number of sells: 67
Shares outstanding: 51,934,753

Security key

783754104

Report period

Q4 2024

Institutions

139

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

Platinum Equity Advisors,...

Disclosed value leader

Platinum Equity Advisors,...

Comparable rows

15/15

Latest evidence

30 Sep 2024

13F Lead comparable stake: 7.6% Showing 1-6 of 15 holder rows.

Quick read

Platinum Equity Advisors, LLC/DE leads the comparable SEC ownership view at 7.6%.

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 Platinum Equity Advisors, LLC/DE's linked filing trail.

Comparable ownership Top 5

Platinum Equity Advisors, LLC/DE 7.6%

BlackRock, Inc. 6.8%

JB CAPITAL PARTNERS LP 4.1%

DIMENSIONAL FUND ADVISORS LP 4%

VANGUARD GROUP INC 3.8%

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
Platinum Equity Advisors, LLC/DE	13F Company 13F	7.6%	$78,136,357 3,924,478 shares	—	30 Sep 2024
BlackRock, Inc.	13F Company 13F	6.8%	$69,972,240 3,514,427 shares	—	30 Sep 2024
JB CAPITAL PARTNERS LP	13F Company 13F	4.1%	$42,429,584 2,131,069 shares	—	30 Sep 2024
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	4%	$41,220,484 2,070,347 shares	—	30 Sep 2024
VANGUARD GROUP INC	13F Company 13F	3.8%	$39,627,053 1,990,309 shares	—	30 Sep 2024
STATE STREET CORP	13F Company 13F	2.7%	$28,100,914 1,411,397 shares	—	30 Sep 2024

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 Q4 2024

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

Institutions

139

30,075,008

Rows available

139

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 Q4 2024 vs Q4 2025 Across Filers

Q4 2025 holders

144

Q4 2024 holders

139

Holder diff

-5

Investor	Q4 2025 Shares	Q4 2024 Shares	Share Diff	Share Chg %	Q4 2025 value	Q4 2024 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend