How many institutions held WRB - W. R. BERKLEY CORPORATION - Common Stock, par value $0.20 per share in Q1 2021?

500 institutional investors reported WRB - W. R. BERKLEY CORPORATION - Common Stock, par value $0.20 per share for Q1 2021. Use the holders table for investor-level position and value details.

W. R. BERKLEY CORPORATION - Common Stock, par value $0.20 per share (WRB)

Q: What does CUSIP 084423102 represent in this 13F holders report?

CUSIP 084423102 is the security identifier for WRB - W. R. BERKLEY CORPORATION - Common Stock, par value $0.20 per share used to aggregate holder disclosures.

CUSIP: 084423102

Q1 2021 13F Holders as of 31 Mar 2021

Security type / class: Equity / Common Stock, par value $0.20 per share
Total 13F shares: 124,457,759
Total 13F value: $9,355,454,258
Share change: +1,368,815
Put/Call ratio: 38%
SEC-reported price per share: $75.35
Number of holders: 500
Value change: +$113,697,159
Number of buys: 224
Number of sells: 235
Shares outstanding: 372,028,165

Security key

084423102

Report period

Q1 2021

Institutions

500

Top holders

WRB full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2021 Previous quarter: Q4 2020 BERKLEY W R CORP SEC filings BERKLEY W R CORP company facts BERKLEY W R CORP 13D/G history

Broader feeds

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

Reporting periods

Holder history for CUSIP 084423102

Newer quarter: Q2 2021 Previous quarter: Q4 2020

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top reported holders of WRB - W. R. BERKLEY CORPORATION - Common Stock, par value $0.20 per share (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

VANGUARD GROUP INC

Disclosed value leader

VANGUARD GROUP INC

Comparable rows

15/15

Latest evidence

31 Dec 2020

13F Lead comparable stake: 4.2% Showing 1-6 of 15 holder rows.

Quick read

VANGUARD GROUP INC leads the comparable SEC ownership view at 4.2%.

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 VANGUARD GROUP INC's linked filing trail.

Comparable ownership Top 5

VANGUARD GROUP INC 4.2%

ATLANTA CAPITAL MANAGEMENT CO L L C 2.7%

BlackRock Finance, Inc. 2.6%

STATE STREET CORP 1.8%

JANUS HENDERSON GROUP PLC 1.8%

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
VANGUARD GROUP INC	13F Company 13F	4.2%	$1,044,359,000 15,723,551 shares	—	31 Dec 2020
ATLANTA CAPITAL MANAGEMENT CO L L C	13F Company 13F	2.7%	$669,161,000 10,074,697 shares	—	31 Dec 2020
BlackRock Finance, Inc.	13F Company 13F	2.6%	$633,813,000 9,542,523 shares	—	31 Dec 2020
STATE STREET CORP	13F Company 13F	1.8%	$451,051,000 6,790,894 shares	—	31 Dec 2020
JANUS HENDERSON GROUP PLC	13F Company 13F	1.8%	$438,623,000 6,603,783 shares	—	31 Dec 2020
First Eagle Investment Management, LLC	13F Company 13F	1.5%	$378,887,000 5,704,411 shares	—	31 Dec 2020

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 2021

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

Institutions

500

124,457,759

Rows available

500

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 2021 vs Q4 2020 Across Filers

Q4 2020 holders

492

Q1 2021 holders

500

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 value	Q1 2021 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend