BERKLEY W R CORP (WRB) — Institutional Holders, Q2 2026

956 institutional investment managers reported a WRB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $19.7B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← WRB stock profile

WRB in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

112

Added to

336

Trimmed

328

Sold out

Biggest buyers

AQR CAPITAL MANAGEMENTAdded · +1,832,055 sh+$129.2M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded · +1,785,433 sh+$125.9M
TWO SIGMA INVESTMENTSAdded · +1,740,369 sh+$122.7M
GOLDMAN SACHS GROUPAdded · +1,306,932 sh+$92.2M
Bristol Gate Capital PartnersNew · +918,030 sh+$64.7M

Biggest sellers

MORGAN STANLEYTrimmed · -2,159,675 sh-$152.3M
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENTTrimmed · -1,395,149 sh-$98.4M
BlackRockTrimmed · -1,345,982 sh-$94.9M
JPMORGAN CHASETrimmed · -1,119,487 sh-$79.0M
PFA Pension, ForsikringsaktieselskabTrimmed · -789,143 sh-$55.7M

WRB 13F holders ranked 1–100 of 956

Institutional investors reporting a position in BERKLEY W R CORP on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	Mitsui Sumitomo Insurance Ltd#1 · 58,780,450 sh	58,780,450	$4.1B	100.00%	0.0%
2	BlackRock#2 · 21,934,626 sh	21,934,626	$1.5B	0.02%	-5.8%
3	VANGUARD CAPITAL MANAGEMENT#3 · 18,690,969 sh	18,690,969	$1.3B	0.03%	-1.2%
4	VANGUARD PORTFOLIO MANAGEMENT#4 · 14,550,971 sh	14,550,971	$1.0B	0.05%	-1.4%
5	STATE STREET#5 · 14,126,628 sh	14,126,628	$1.0B	0.03%	-1.9%
6	GEODE CAPITAL MANAGEMENT#6 · 8,268,721 sh	8,268,721	$588.5M	0.03%	+0.5%
7	MORGAN STANLEY#7 · 8,252,790 sh	8,252,790	$582.1M	0.03%	-20.7%
8	KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT#8 · 6,377,064 sh	6,377,064	$449.8M	1.40%	-18.0%
9	Invesco Ltd.#9 · 5,028,284 sh	5,028,284	$354.6M	0.03%	-0.5%
10	GOLDMAN SACHS GROUP#10 · 4,158,216 sh	4,158,216	$293.3M	0.03%	+45.8%
11	DIMENSIONAL FUND ADVISORS#11 · 4,041,846 sh	4,041,846	$285.1M	0.05%	+7.3%
12	WELLS FARGO & COMPANY#12 · 3,720,958 sh	3,720,958	$262.4M	0.04%	-1.8%
13	AQR CAPITAL MANAGEMENT#13 · 3,680,160 sh	3,680,160	$259.6M	0.09%	+99.1%
14	FIRST ADVISORS#14 · 3,624,858 sh	3,624,858	$255.7M	0.15%	-8.8%
15	NORGES BANK#15 · 3,148,633 sh	3,148,633	$222.1M	0.02%	—
16	BANK OF AMERICA#16 · 2,849,413 sh	2,849,413	$201.0M	0.01%	-1.9%
17	UBS Group AG#17 · 2,835,322 sh	2,835,322	$200.0M	0.03%	-13.2%
18	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#18 · 2,588,583 sh	2,588,583	$182.6M	0.08%	+222.3%
19	NORTHERN#19 · 2,552,698 sh	2,552,698	$180.0M	0.02%	-5.6%
20	1832 Asset Management L.P.#20 · 2,293,864 sh	2,293,864	$161.8M	0.08%	0.0%
21	JPMORGAN CHASE#21 · 2,154,477 sh	2,154,477	$153.0M	<0.01%	-34.2%
22	Polar Capital Plc#22 · 2,130,000 sh	2,130,000	$150.2M	0.35%	-6.4%
23	ROYAL LONDON ASSET MANAGEMENT LTD#23 · 2,115,249 sh	2,115,249	$149.2M	0.27%	-7.4%
24	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#24 · 2,041,622 sh	2,041,622	$144.0M	0.03%	-6.2%
25	TWO SIGMA INVESTMENTS#25 · 2,013,358 sh	2,013,358	$142.0M	0.10%	+637.5%
26	CHARLES SCHWAB INVESTMENT MANAGEMENT#26 · 1,917,449 sh	1,917,449	$135.2M	0.02%	+0.8%
27	VANGUARD FIDUCIARY#27 · 1,632,946 sh	1,632,946	$115.2M	0.03%	-1.6%
28	Legal & General Group Plc#28 · 1,599,505 sh	1,599,505	$112.8M	0.02%	-14.5%
29	Madison Asset Management#29 · 1,497,784 sh	1,497,784	$105.6M	1.26%	-7.5%
30	CITADEL ADVISORS#30 · 1,475,954 sh	1,475,954	$104.1M	0.01%	+5.9%
31	NATIXIS ADVISORS#31 · 1,466,496 sh	1,466,496	$103.4M	0.12%	+8.7%
32	PRINCIPAL FINANCIAL GROUP#32 · 1,461,348 sh	1,461,348	$103.1M	0.05%	-23.8%
33	FMR#33 · 1,446,808 sh	1,446,808	$102.0M	<0.01%	+4.1%
34	BARCLAYS PLC#34 · 1,440,408 sh	1,440,408	$101.6M	0.02%	+17.4%
35	Bank of New York Mellon#35 · 1,347,506 sh	1,347,506	$95.0M	0.02%	-33.7%
36	CHILTON INVESTMENT#36 · 1,339,877 sh	1,339,877	$94.5M	2.27%	-3.5%
37	Cornerstone Investment Partners#37 · 1,336,146 sh	1,336,146	$94.2M	3.15%	+26.9%
38	DEUTSCHE BANK AG\#38 · 1,305,627 sh	1,305,627	$92.1M	0.03%	+14.1%
39	JONES FINANCIAL COMPANIES LLLP#39 · 1,259,360 sh	1,259,360	$89.8M	0.04%	+9.8%
40	ROYAL BANK OF CANADA#40 · 1,257,518 sh	1,257,518	$88.7M	0.01%	-3.0%
41	HSBC PLC#41 · 1,110,733 sh	1,110,733	$78.6M	0.03%	+0.7%
42	ANCHOR CAPITAL ADVISORS#42 · 1,035,350 sh	1,035,350	$73.0M	2.05%	-8.7%
43	CONFLUENCE INVESTMENT MANAGEMENT#43 · 1,031,752 sh	1,031,752	$72.8M	—	-7.3%
44	RAYMOND JAMES FINANCIAL#44 · 993,028 sh	993,028	$70.0M	0.02%	-9.8%
45	BNP PARIBAS FINANCIAL MARKETS#45 · 969,375 sh	969,375	$68.4M	0.02%	+66.5%
46	MILLENNIUM MANAGEMENT#46 · 936,192 sh	936,192	$66.0M	0.02%	+103.9%
47	Bristol Gate Capital Partners#47 · 918,030 sh	918,030	$64.7M	4.51%	New
48	EULAV Asset Management#48 · 906,464 sh	906,464	$63.9M	—	-26.3%
49	JANE STREET GROUP#49 · 875,704 sh	875,704	$61.8M	<0.01%	-13.7%
50	ENVESTNET ASSET MANAGEMENT#50 · 830,557 sh	830,557	$58.6M	0.01%	-7.3%
51	Cerity Partners#51 · 814,688 sh	814,688	$57.5M	0.07%	+5.1%
52	PARNASSUS INVESTMENTS#52 · 779,771 sh	779,771	$55.0M	—	-3.3%
53	Squarepoint Ops#53 · 751,280 sh	751,280	$53.0M	0.06%	+1300.5%
54	CITIGROUP#54 · 709,852 sh	709,852	$50.1M	0.02%	+0.4%
55	MANUFACTURERS LIFE INSURANCE COMPANY, THE#55 · 651,963 sh	651,963	$46.0M	0.04%	+30.4%
56	Amundi#56 · 647,848 sh	647,848	$45.7M	0.01%	-10.2%
57	Mraz, Amerine & Associates#57 · 635,753 sh	635,753	$44.8M	6.43%	+0.8%
58	Vanguard Global Advisers#58 · 630,210 sh	630,210	$44.4M	0.02%	-2.8%
59	Mitsubishi UFJ Asset Management , Ltd.#59 · 628,784 sh	628,784	$44.3M	0.02%	+1.0%
60	STIFEL FINANCIAL#60 · 620,960 sh	620,960	$43.8M	0.04%	-6.9%
61	Swiss National Bank#61 · 607,262 sh	607,262	$42.8M	0.02%	-16.2%
62	Nuveen#62 · 580,231 sh	580,231	$40.9M	<0.01%	+10.8%
63	TUDOR INVESTMENT ET AL#63 · 571,238 sh	571,238	$40.3M	0.06%	+34.0%
64	RHUMBLINE ADVISERS#64 · 562,316 sh	562,316	$39.7M	0.03%	-2.3%
65	HEALTHCARE OF ONTARIO PENSION PLAN FUND#65 · 561,587 sh	561,587	$39.6M	0.06%	+2899.8%
66	CAISSE DE DEPOT ET PLACEMENT DU QUEBEC#66 · 556,725 sh	556,725	$39.3M	0.06%	-15.5%
67	Sumitomo Mitsui#67 · 525,095 sh	525,095	$37.0M	0.02%	-6.9%
68	BRANDES INVESTMENT PARTNERS#68 · 516,132 sh	516,132	$36.4M	0.26%	+0.6%
69	TRUIST FINANCIAL#69 · 468,920 sh	468,920	$33.1M	0.04%	-18.1%
70	CANADA PENSION PLAN INVESTMENT BOARD#70 · 432,603 sh	432,603	$30.5M	0.02%	New
71	VANGUARD ASSET MANAGEMENT, Ltd#71 · 429,847 sh	429,847	$30.3M	0.02%	+5.9%
72	PRICE T ROWE ASSOCIATES#72 · 420,968 sh	420,968	$29.7M	<0.01%	-0.5%
73	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#73 · 416,611 sh	416,611	$29.4M	0.02%	-17.1%
74	Russell Investments Group, Ltd.#74 · 415,808 sh	415,808	$29.4M	0.03%	+2.1%
75	BNP Paribas Asset Management Holding S.A.#75 · 411,605 sh	411,605	$29.0M	0.03%	+114.3%
76	VICTORY CAPITAL MANAGEMENT#76 · 411,560 sh	411,560	$29.0M	0.02%	-12.9%
77	Dundas Partners LLP#77 · 390,567 sh	390,567	$27.5M	1.99%	0.0%
78	Quantinno Capital Management#78 · 389,863 sh	389,863	$27.5M	0.03%	+48.1%
79	America First Investment Advisors#79 · 383,605 sh	383,605	$27.1M	5.02%	+0.9%
80	WEALTH ENHANCEMENT ADVISORY SERVICES#80 · 377,811 sh	377,811	$26.7M	—	+240.8%
81	FRANKLIN RESOURCES#81 · 374,673 sh	374,673	$26.4M	<0.01%	-4.7%
82	CIBC Asset Management#82 · 367,934 sh	367,934	$26.0M	0.06%	+334.3%
83	SILVERCREST ASSET MANAGEMENT GROUP#83 · 364,547 sh	364,547	$25.7M	0.17%	+33.0%
84	SUSQUEHANNA FUNDAMENTAL INVESTMENTS#84 · 358,749 sh	358,749	$25.3M	0.48%	+98.5%
85	APG Asset Management N.V.#85 · 389,251 sh	389,251	$24.0M	0.06%	-3.2%
86	ZACKS INVESTMENT MANAGEMENT#86 · 333,691 sh	333,691	$23.5M	0.17%	+1.6%
87	BANK OF NOVA SCOTIA#87 · 316,642 sh	316,642	$22.3M	0.03%	+2.0%
88	CREDIT AGRICOLE S A#88 · 315,524 sh	315,524	$22.3M	0.05%	+515.3%
89	CAPITOLIS LIQUID GLOBAL MARKETS#89 · 308,000 sh	308,000	$21.7M	0.09%	New
90	BANK OF MONTREAL#90 · 299,915 sh	299,915	$21.2M	<0.01%	+21.3%
91	D. E. Shaw#91 · 290,364 sh	290,364	$20.5M	<0.01%	+44.6%
92	BARLOW WEALTH PARTNERS#92 · 271,315 sh	271,315	$19.3M	—	+0.4%
93	ALLIANCEBERNSTEIN L.P.#93 · 288,882 sh	288,882	$19.1M	<0.01%	-1.4%
94	FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND#94 · 269,218 sh	269,218	$19.0M	—	-13.4%
95	Rockefeller Capital Management L.P.#95 · 265,691 sh	265,691	$18.7M	0.03%	-4.6%
96	DANSKE BANK A/S#96 · 260,160 sh	260,160	$18.3M	0.04%	-4.4%
97	PhiloSmith Capital#97 · 259,381 sh	259,381	$18.3M	—	-0.4%
98	FAIRHOLME CAPITAL MANAGEMENT#98 · 256,350 sh	256,350	$18.1M	1.21%	0.0%
99	NATIONAL BANK OF CANADA#99 · 253,485 sh	253,485	$17.9M	0.01%	+59.4%
100	NEW YORK STATE TEACHERS RETIREMENT SYSTEM#100 · 249,342 sh	249,342	$17.6M	—	-3.1%

Funds that sold out of WRB in Q2 2026 (87)

Held WRB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held WRB in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Maren Capital504,611 sh	504,611	$33.4M
Wallington Asset Management308,444 sh	308,444	$20.4M
HRT FINANCIAL176,640 sh	176,640	$11.7M
Qube Research & Technologies Ltd154,049 sh	154,049	$10.2M
Tredje AP-fonden119,735 sh	119,735	$7.9M
Dakota Wealth Management101,504 sh	101,504	$6.7M
SteelPeak Wealth52,609 sh	52,609	$3.5M
TWINBEECH CAPITAL36,100 sh	36,100	$2.4M
Virtus Investment Advisers28,228 sh	28,228	$1.9M
JSF Financial18,525 sh	18,525	$1.2M
Andra AP-fonden17,907 sh	17,907	$1.2M
GREAT LAKES ADVISORS15,105 sh	15,105	$1.0M
Quadrature Capital Ltd15,003 sh	15,003	$994.4K
Weiss Asset Management14,858 sh	14,858	$984.8K
NATIONS FINANCIAL GROUP , /IA14,713 sh	14,713	$975.2K
Vise Technologies13,885 sh	13,885	$973.6K
Blue Sparrow14,430 sh	14,430	$956.4K
ING GROEP NV13,532 sh	13,532	$896.9K
OCCUDO QUANTITATIVE STRATEGIES11,863 sh	11,863	$792.8K
SEGALL BRYANT & HAMILL10,197 sh	10,197	$692.0K
Empirical Asset Management10,373 sh	10,373	$687.5K
Virtu Financial10,043 sh	10,043	$666.0K
Voleon Capital Management9,456 sh	9,456	$626.7K
AlphaGrep UK Ltd8,352 sh	8,352	$553.6K
OXFORD ASSET MANAGEMENT LLP8,310 sh	8,310	$550.8K
Tufton Capital Management7,385 sh	7,385	$489.0K
Procyon Advisors7,027 sh	7,027	$465.8K
SummitTX Capital, L.P.5,489 sh	5,489	$363.8K
Concentric Capital Strategies5,327 sh	5,327	$353.1K
BEESE FULMER INVESTMENT MANAGEMENT5,130 sh	5,130	$340.0K
Gallacher Capital Management5,128 sh	5,128	$339.9K
Odyssean5,098 sh	5,098	$337.9K
MANCHESTER FINANCIAL4,763 sh	4,763	$315.7K
BCS Private Wealth Management4,639 sh	4,639	$307.5K
S-Bank Fund Management Ltd4,229 sh	4,229	$280.3K
Abacus Planning Group4,124 sh	4,124	$273.3K
GTS SECURITIES4,069 sh	4,069	$269.7K
Advyzon Investment Management4,028 sh	4,028	$267.0K
Legacy Capital Wealth Partners3,880 sh	3,880	$257.1K
TEACHER RETIREMENT SYSTEM OF TEXAS3,684 sh	3,684	$244.2K
Crumly & Associates3,436 sh	3,436	$227.7K
PATTON FUND MANAGEMENT3,396 sh	3,396	$225.1K
Havemeyer Place3,294 sh	3,294	$218.3K
Indie Asset Partners3,273 sh	3,273	$216.9K
Laurion Capital Management3,255 sh	3,255	$215.7K
Aaron Wealth Advisors3,184 sh	3,184	$211.0K
SAPIENT CAPITAL3,147 sh	3,147	$208.6K
Koshinski Asset Management3,145 sh	3,145	$208.5K
PUREfi Wealth3,082 sh	3,082	$204.3K
Global Assets Advisory2,761 sh	2,761	$183.0K
Western Wealth Management2,665 sh	2,665	$176.7K
Annis Gardner Whiting Capital Advisors1,693 sh	1,693	$112.2K
Banque Cantonale Vaudoise997 sh	997	$66.0K
Root Financial Partners825 sh	825	$54.7K
Walleye Capital625 sh	625	$41.4K
LOOMIS SAYLES & L P599 sh	599	$39.7K
TWIN PEAKS WEALTH ADVISORS333 sh	333	$22.1K
Destiny Wealth Partners327 sh	327	$21.7K
Global Wealth Strategies & Associates160 sh	160	$10.6K
Innovative Asset Advisors Group153 sh	153	$10.2K
Cherry Tree Wealth Management108 sh	108	$7.2K
Colonial Advisors97 sh	97	$6.4K
Legacy Wealth Managment95 sh	95	$6.3K
Addison Advisors91 sh	91	$6.0K
Park Place Capital74 sh	74	$4.9K
Philadelphia Investment Partners69 sh	69	$4.6K
Clayton Financial Group50 sh	50	$3.3K
Sound Income Strategies48 sh	48	$3.1K
First PREMIER Bank43 sh	43	$3.0K
RMG Wealth Management40 sh	40	$2.7K
Union Bankshares30 sh	30	$2.0K
Estabrook Capital Management28 sh	28	$1.9K
Jackson, Grant Investment Advisers24 sh	24	$1.6K
Aspect Partners24 sh	24	$1.6K
Vermillion Wealth Management21 sh	21	$1.4K
Richardson Capital Management20 sh	20	$1.3K
Newbridge Financial Services Group15 sh	15	$994.00
Rachor Investment Advisory Services13 sh	13	$862.00
Wealth Preservation Advisors12 sh	12	$795.00
Golden State Equity Partners10 sh	10	$662.00
Wall Street Financial Group9 sh	9	$597.00
Intentional Wealth Strategies5 sh	5	$331.00
Nvest Wealth Strategies4 sh	4	$266.00
CURIO WEALTH3 sh	3	$199.00
Napier Financial3 sh	3	$199.00
Abound Wealth Management3 sh	3	$171.00
SOA Wealth Advisors1 sh	1	$68.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.