Ticker · CUSIP 084423102

WRB

BERKLEY W R CORP

Financial Services·Insurance - Property & Casualty

···Share

Holders (tracked)

Combined shares

9,209,699

Combined value

$645.78M

Last close

$66.83

Quarter

2025Q4

Price is -4.7% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$66.83-0.18 (-0.27%)H $77.13 · L $64.49 · Avg Vol 2.3M

Congress buyCongress sell

Tracked holders · last 8 quarters

Flat over the last 8 quarters.

SEC event timeline

26 events

Bruce Berkowitz (Fairholme) trimmed2026-02-17
−1,300 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+23,244 shares · 2025Q4
Position
D.E. Shaw & Co. exited2026-02-17
−2,764 shares · 2025Q4
Position
Two Sigma Investments trimmed2026-02-17
−2,471 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+13,611 shares · 2025Q4
Position
Steve Cohen (Point72) exited2026-02-17
−79,089 shares · 2025Q4
Position
T. Rowe Price trimmed2026-02-17
−10,572 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+75,015 shares · 2025Q4
Position
Wellington Management exited2026-02-17
−43,339 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+80,128 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+6,214,380 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−1,248 shares · 2025Q4
Position
Mario Gabelli (GAMCO) added2026-02-05
+5,065 shares · 2025Q4
Position
Two Sigma Investments added2025-11-14
+15,556 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−397 shares · 2025Q3
Position
Boykin Curry (Eagle Capital) trimmed2025-11-14
−66 shares · 2025Q3
Position
AQR Capital Management trimmed2025-11-14
−138,660 shares · 2025Q3
Position
Steve Cohen (Point72) opened position2025-11-14
+79,089 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+2,088 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−100,582 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−40,206 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−5,007,772 shares · 2025Q3
Position
Renaissance Technologies exited2025-11-13
−44,766 shares · 2025Q3
Position
Mario Gabelli (GAMCO) trimmed2025-11-12
−4,502 shares · 2025Q3
Position
Norges Bank (Norway SWF) added2025-11-12
+1,104,775 shares · 2024Q3
Position
Ken Fisher (Fisher Asset Mgmt) added2025-11-12
+1,353 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for WRB →

Follow-the-investor returns

If you'd copied each holder of WRB…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Bruce Berkowitz (Fairholme)	2023Q2	$58.08	+15.1%	$17.4M
Boykin Curry (Eagle Capital)	2016Q1	$59.85	+11.7%	$8.3M
Mario Gabelli (GAMCO)	2016Q1	$61.54	+8.6%	$6.2M
Paul Tudor Jones (Tudor Investment)	2016Q1	$62.47	+7.0%	$307K
Paul Tudor Jones (Tudor Investment)	2016Q1	$62.47	+7.0%	$307K
T. Rowe Price	2016Q1	$63.76	+4.8%	$28.6M
Tom Gayner (Markel Group)	2017Q2	$63.93	+4.5%	$4.1M
AQR Capital Management	2016Q1	$64.90	+3.0%	$115.6M
Two Sigma Investments	2019Q4	$69.93	-4.4%	$1.8M
Izzy Englander (Millennium Mgmt)	2016Q1	$70.36	-5.0%	$2.4M
Ken Griffin (Citadel Advisors)	2016Q1	$70.84	-5.7%	$1.1M
Ken Griffin (Citadel Advisors)	2016Q1	$70.84	-5.7%	$1.1M
Ken Griffin (Citadel Advisors)	2016Q1	$70.84	-5.7%	$1.1M
Ken Fisher (Fisher Asset Mgmt)	2022Q4	$73.37	-8.9%	$252K
Norges Bank (Norway SWF)	2016Q1	$13091.09	-99.5%	$415.3M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions2

Norges Bank (Norway SWF)
+6,214,380
$435.8M
Paul Tudor Jones (Tudor Investment)
+75,015
$5.3M

Added to4

AQR Capital Management
+80,128
$5.6M
Ken Griffin (Citadel Advisors)
+23,244
$1.6M
Izzy Englander (Millennium Mgmt)
+13,611
$954K
Mario Gabelli (GAMCO)
+5,065
$355K

Trimmed4

Two Sigma Investments
−2,471
$173K
Bruce Berkowitz (Fairholme)
−1,300
$91K
Ken Fisher (Fisher Asset Mgmt)
−1,248
$88K
T. Rowe Price
−10,572
$741

Exited3

Steve Cohen (Point72)
−79,089
$6.1M
Wellington Management
−43,339
$3.3M
D.E. Shaw & Co.
−2,764
$212K

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	17	28,922,993	$173.89B	—
2022Q2	18	26,828,787	$173.16B	+1
2022Q3	19	25,241,591	$1.63B	+1
2022Q4	20	25,501,135	$1.85B	+1
2023Q1	18	27,354,766	$1.70B	-2
2023Q2	19	25,679,380	$1.53B	+1
2023Q3	17	20,369,604	$1.29B	-2
2023Q4	15	20,827,417	$1.47B	-2
2024Q1	17	20,873,281	$1.85B	+2
2024Q2	17	22,218,819	$1.75B	—
2024Q3	16	9,245,170	$523.9M	-1
2024Q4	16	8,838,284	$517.2M	—
2025Q1	16	3,503,162	$249.3M	—
2025Q2	16	8,115,799	$596.3M	—
2025Q3	15	2,939,339	$225.0M	-1
2025Q4	15	9,209,699	$645.8M	—

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2026-03-18	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2026-01-20	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2026-01-06	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2025-10-31	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-10-30	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-10-30	Lisa McClain	Buy	$1K – $15K	PDF ↗
2025-07-31	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2025-07-16	Lisa McClain	Buy	$1K – $15K	PDF ↗
2025-04-28	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2025-04-14	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2025-04-07	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2025-04-01	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗

Who owns WRB

15 super-investors · 2025Q4

Tracked stake

9.21M

Combined value

$646M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added6Trim4Held2

#	Manager	Shares	Value	% of book	Last action
1	Norges Bank Norway SWF	6.21M	$436M	0.0%	New+6.21M
2	AQR Capital Management	1.73M	$121M	0.1%	Added+80.1K
3	T. Rowe Price	428.2K	$30M	0.0%	Trim−10.6K
4	Bruce Berkowitz Fairholme	260.1K	$18M	1.3%	Trim−1.3K
5	Boykin Curry Eagle Capital	123.5K	$9M	0.0%	Held
6	Ken Griffin Citadel Advisors	112.3K	$8M	0.0%	Added+23.2K
7	Mario Gabelli GAMCO	92.6K	$6M	0.1%	Added+5.1K
8	Paul Tudor Jones Tudor Investment	75.0K	$5M	0.0%	New+75.0K
9	Tom Gayner Markel Group	60.8K	$4M	0.0%	Held
10	Izzy Englander Millennium Mgmt	35.2K	$2M	0.0%	Added+13.6K
11	Ken Griffin Citadel Advisors	27.3K	$2M	0.0%	Added+23.2K
12	Two Sigma Investments	26.6K	$2M	0.0%	Trim−2.5K
13	Ken Griffin Citadel Advisors	16.3K	$1M	0.0%	Added+23.2K
14	Paul Tudor Jones Tudor Investment	4.6K	$323K	0.0%	New+75.0K
15	Ken Fisher Fisher Asset Mgmt	3.8K	$265K	0.0%	Trim−1.2K

Recent moves

20 transactions

SOLDWellington Management
−43,339 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+13,611 · 2025Q4
TRIMBruce Berkowitz (Fairholme)
−1,300 · 2025Q4
ADDAQR Capital Management
+80,128 · 2025Q4
SOLDD.E. Shaw & Co.
−2,764 · 2025Q4
SOLDSteve Cohen (Point72)
−79,089 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+23,244 · 2025Q4
TRIMT. Rowe Price
−10,572 · 2025Q4
TRIMTwo Sigma Investments
−2,471 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+75,015 · 2025Q4
NEWNorges Bank (Norway SWF)
+6,214,380 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−1,248 · 2025Q4
ADDMario Gabelli (GAMCO)
+5,065 · 2025Q4
TRIMD.E. Shaw & Co.
−397 · 2025Q3
ADDTwo Sigma Investments
+15,556 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−40,206 · 2025Q3
ADDT. Rowe Price
+2,088 · 2025Q3
NEWSteve Cohen (Point72)
+79,089 · 2025Q3
TRIMWellington Management
−100,582 · 2025Q3
TRIMBoykin Curry (Eagle Capital)
−66 · 2025Q3

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