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WRB in the 13F filings

Berkley W R Corp · CUSIP 084423102

Sector · InsuranceTheme · Financial services· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Sep 2024
the date the book describes
Filed
14 Nov 2024
latest of these filings; the earliest 1 Nov 2024
Managers listing it
9
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q2 2024 and Q3 2024; 7 listed it in both
Shares listed
14,208,923
combined, among listed positions
Reported value
$806m
combined, at the quarter end

Among the 94 comparable managers: 9 buyers (opened or added shares) and 1 seller (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing WRB in Q3 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

9 of 9 holders

ActionFiling
Janus Henderson Group Ltd11,321,958$642m0.33%Added+3,825,23814 Nov 2024 (the filing on sec.gov)
AQR Capital Management LLC1,110,591$62m0.09%Added+511,48214 Nov 2024 (the filing on sec.gov)
Arrowstreet Capital LP884,096$50munder 0.1%Added+191,07714 Nov 2024 (the filing on sec.gov)
Winton Group Ltd325,103$18m1.29%Added+89,90912 Nov 2024 (the filing on sec.gov)
Tudor Investment Corp277,238$16m0.06%Added+149,15514 Nov 2024 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC102,482$5.8munder 0.1%Addedn.a.14 Nov 2024 (the filing on sec.gov)
GAMCO Investors Inc98,829$5.6m0.06%Added+34,12014 Nov 2024 (the filing on sec.gov)
Markel Group Inc60,750$3.4munder 0.1%Added+20,2501 Nov 2024 (the filing on sec.gov)
Brevan Howard Capital Management LP27,876$1.6munder 0.1%Newnew14 Nov 2024 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2024 to Q3 2024, among managers that listed it in both quarters or opened it.

Increases

Reductions

No reduction among listed positions.

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (1)

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
9 in Q3 2024 to 11 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
WRB by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20138$517mn.a.n.a.
Q3 20134$490mn.a.n.a.
Q4 20136$484mn.a.n.a.
Q1 20145$467mn.a.n.a.
Q2 20146$518mn.a.n.a.
Q3 20144$472mn.a.n.a.
Q4 20147$509mn.a.n.a.
Q1 20153$478mn.a.n.a.
Q2 20153$485mn.a.n.a.
Q3 20158$611mn.a.n.a.
Q4 20157$594mn.a.n.a.
Q1 20167$598mn.a.n.a.
Q2 20165$508mn.a.n.a.
Q3 20163$440mn.a.n.a.
Q4 20166$571mn.a.n.a.
Q1 20176$661mn.a.n.a.
Q2 20179$651mn.a.n.a.
Q3 20178$548mn.a.n.a.
Q4 201710$817mn.a.n.a.
Q1 201811$879mn.a.n.a.
Q2 20187$851mn.a.n.a.
Q3 20188$1.1bnn.a.n.a.
Q4 201810$1.1bnn.a.n.a.
Q1 201910$1.2bnn.a.n.a.
Q2 201911$1.3bnn.a.n.a.
Q3 201915$1.4bnn.a.n.a.
Q4 201912$1.4bnn.a.n.a.
Q1 202014$1.0bnn.a.n.a.
Q2 202013$1.1bnn.a.n.a.
Q3 20209$948mn.a.n.a.
Q4 202015$1.2bnn.a.n.a.
Q1 20218$1.1bnn.a.n.a.
Q2 202113$1.2bnn.a.n.a.
Q3 202116$1.2bnn.a.n.a.
Q4 202115$1.3bnn.a.n.a.
Q1 202213$1.7bnn.a.n.a.
Q2 202217$1.8bnn.a.n.a.
Q3 202219$1.6bnn.a.n.a.
Q4 202217$1.5bnn.a.n.a.
Q1 202321$1.4bnn.a.n.a.
Q2 202320$906mn.a.n.a.
Q3 202311$713mn.a.n.a.
Q4 20237$692m16
Q1 202410$1.1bn63
Q2 20249$1.0bn73
Q3 20249$806m91
Q4 202410$1.0bn45
Q1 202510$1.3bn55
Q2 202510$1.2bn64
Q3 202510$1.2bn37
Q4 20257$820m1518
Q1 20268$723m1514
Q2 202611$1.1bn1612

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

WRB and V →WRB and AXP →WRB and BAC →Choose a stock to compare with WRB →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own WRB, latest filings →Back to the 13F Explorer →