BERKLEY W R CORP

Ticker: WRB CUSIP: 084423102 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 144,341 Value ($000) $10,121 Avg Close $72.74 Range $64.36 - $77.72

Q3 2025

Shares 145,453 Value ($000) $11,145 Avg Close $70.00 Range $65.55 - $75.76

Q2 2025

Shares 149,784 Value ($000) $11,005 Avg Close $69.95 Range $61.08 - $73.57

Q1 2025

Shares 150,232 Value ($000) $10,690 Avg Close $59.72 Range $54.51 - $74.49

Q4 2024

Shares 154,881 Value ($000) $9,064 Avg Close $57.87 Range $54.03 - $63.18

Q3 2024

Shares 155,088 Value ($000) $8,798 Avg Close $53.88 Range $49.31 - $58.78

Q2 2024

Shares 105,421 Value ($000) $8,284 Avg Close $51.01 Range $48.28 - $56.07

Q1 2024

Shares 105,378 Value ($000) $9,320 Avg Close $51.43 Range $44.84 - $56.59

Q4 2023

Shares 106,721 Value ($000) $7,547 Avg Close $43.01 Range $38.99 - $46.59

Q3 2023

Shares 106,594 Value ($000) $6,768 Avg Close $38.71 Range $35.97 - $41.14

Q2 2023

Shares 107,656 Value ($000) $6,412 Avg Close $36.64 Range $34.48 - $39.64

Q1 2023

Shares 108,758 Value ($000) $6,771 Avg Close $41.60 Range $36.60 - $46.85

Q4 2022

Shares 193,760 Value ($000) $14,061 Avg Close $44.51 Range $39.51 - $47.36

Q3 2022

Shares 275,166 Value ($000) $17,770 Avg Close $40.00 Range $37.40 - $42.70

Q2 2022

Shares 276,631 Value ($000) $18,883 Avg Close $41.54 Range $39.62 - $44.01

Q1 2022

Shares 322,438 Value ($000) $21,471 Avg Close $36.37 Range $32.41 - $41.10

Q4 2021

Shares 215,748 Value ($000) $17,775 Avg Close $31.99 Range $28.90 - $33.91

Q3 2021

Shares 218,784 Value ($000) $16,011 Avg Close $29.58 Range $28.23 - $30.95

Q2 2021

Shares 224,688 Value ($000) $16,724 Avg Close $30.80 Range $28.73 - $32.57

Q1 2021

Shares 213,266 Value ($000) $16,070 Avg Close $27.39 Range $24.26 - $30.57

Q4 2020

Shares 156,795 Value ($000) $10,414 Avg Close $25.56 Range $23.47 - $27.94

Q3 2020

Shares 151,001 Value ($000) $9,234 Avg Close $24.25 Range $21.67 - $25.92

Q2 2020

Shares 163,797 Value ($000) $9,384 Avg Close $21.65 Range $17.75 - $25.65

Q1 2020

Shares 182,572 Value ($000) $9,525 Avg Close $26.24 Range $16.88 - $31.29

Q4 2019

Shares 186,562 Value ($000) $12,891 Avg Close $26.99 Range $26.07 - $29.98

Q3 2019

Shares 225,389 Value ($000) $16,280 Avg Close $27.14 Range $25.23 - $28.29

Q2 2019

Shares 241,382 Value ($000) $15,914 Avg Close $23.59 Range $21.25 - $26.10

Q1 2019

Shares 226,922 Value ($000) $19,225 Avg Close $20.26 Range $18.10 - $21.71

Q4 2018

Shares 242,270 Value ($000) $17,906 Avg Close $19.20 Range $17.53 - $20.30

Q3 2018

Shares 246,392 Value ($000) $19,694 Avg Close $19.20 Range $17.96 - $20.20

Q2 2018

Shares 255,106 Value ($000) $18,472 Avg Close $18.67 Range $17.54 - $19.80

Q1 2018

Shares 259,471 Value ($000) $18,864 Avg Close $17.46 Range $16.63 - $18.44

Q4 2017

Shares 260,602 Value ($000) $18,672 Avg Close $16.98 Range $16.18 - $17.82

Q3 2017

Shares 265,905 Value ($000) $17,747 Avg Close $16.55 Range $15.18 - $17.71

Q2 2017

Shares 269,819 Value ($000) $18,663 Avg Close $16.61 Range $15.94 - $17.28

Q1 2017

Shares 272,315 Value ($000) $19,234 Avg Close $16.83 Range $15.96 - $17.75

Q4 2016

Shares 277,400 Value ($000) $18,450 Avg Close $14.61 Range $13.31 - $16.21

Q3 2016

Shares 280,097 Value ($000) $16,178 Avg Close $13.86 Range $13.40 - $14.24

Q2 2016

Shares 280,371 Value ($000) $16,800 Avg Close $13.28 Range $12.90 - $14.20

Q1 2016

Shares 288,641 Value ($000) $16,222 Avg Close $12.24 Range $11.21 - $13.36

Q4 2015

Shares 287,841 Value ($000) $15,759 Avg Close $12.98 Range $12.35 - $13.48

Q3 2015

Shares 288,325 Value ($000) $15,676 Avg Close $12.99 Range $12.19 - $13.73

Q2 2015

Shares 399,940 Value ($000) $20,769 Avg Close $11.79 Range $11.41 - $12.54

Q1 2015

Shares 398,807 Value ($000) $20,144 Avg Close $11.73 Range $11.09 - $12.13

Q4 2014

Shares 415,506 Value ($000) $21,299 Avg Close $11.66 Range $10.70 - $12.41

Q3 2014

Shares 428,274 Value ($000) $20,471 Avg Close $10.69 Range $10.11 - $11.18

Q2 2014

Shares 439,977 Value ($000) $20,375 Avg Close $9.99 Range $9.23 - $10.58

Q1 2014

Shares 466,267 Value ($000) $19,406 Avg Close $9.26 Range $8.59 - $9.84

Q4 2013

Shares 1,355,197 Value ($000) $58,802 Avg Close $9.82 Range $9.49 - $10.19

Q3 2013

Shares 1,425,648 Value ($000) $61,103 Avg Close $9.57 Range $9.16 - $10.14

Q2 2013

Shares 1,535,988 Value ($000) $62,760 Avg Close $9.58 Range $8.95 - $10.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	144,341	$10,121	$72.74	$64.36 - $77.72
Q3 2025	145,453	$11,145	$70.00	$65.55 - $75.76
Q2 2025	149,784	$11,005	$69.95	$61.08 - $73.57
Q1 2025	150,232	$10,690	$59.72	$54.51 - $74.49
Q4 2024	154,881	$9,064	$57.87	$54.03 - $63.18
Q3 2024	155,088	$8,798	$53.88	$49.31 - $58.78
Q2 2024	105,421	$8,284	$51.01	$48.28 - $56.07
Q1 2024	105,378	$9,320	$51.43	$44.84 - $56.59
Q4 2023	106,721	$7,547	$43.01	$38.99 - $46.59
Q3 2023	106,594	$6,768	$38.71	$35.97 - $41.14
Q2 2023	107,656	$6,412	$36.64	$34.48 - $39.64
Q1 2023	108,758	$6,771	$41.60	$36.60 - $46.85
Q4 2022	193,760	$14,061	$44.51	$39.51 - $47.36
Q3 2022	275,166	$17,770	$40.00	$37.40 - $42.70
Q2 2022	276,631	$18,883	$41.54	$39.62 - $44.01
Q1 2022	322,438	$21,471	$36.37	$32.41 - $41.10
Q4 2021	215,748	$17,775	$31.99	$28.90 - $33.91
Q3 2021	218,784	$16,011	$29.58	$28.23 - $30.95
Q2 2021	224,688	$16,724	$30.80	$28.73 - $32.57
Q1 2021	213,266	$16,070	$27.39	$24.26 - $30.57
Q4 2020	156,795	$10,414	$25.56	$23.47 - $27.94
Q3 2020	151,001	$9,234	$24.25	$21.67 - $25.92
Q2 2020	163,797	$9,384	$21.65	$17.75 - $25.65
Q1 2020	182,572	$9,525	$26.24	$16.88 - $31.29
Q4 2019	186,562	$12,891	$26.99	$26.07 - $29.98
Q3 2019	225,389	$16,280	$27.14	$25.23 - $28.29
Q2 2019	241,382	$15,914	$23.59	$21.25 - $26.10
Q1 2019	226,922	$19,225	$20.26	$18.10 - $21.71
Q4 2018	242,270	$17,906	$19.20	$17.53 - $20.30
Q3 2018	246,392	$19,694	$19.20	$17.96 - $20.20
Q2 2018	255,106	$18,472	$18.67	$17.54 - $19.80
Q1 2018	259,471	$18,864	$17.46	$16.63 - $18.44
Q4 2017	260,602	$18,672	$16.98	$16.18 - $17.82
Q3 2017	265,905	$17,747	$16.55	$15.18 - $17.71
Q2 2017	269,819	$18,663	$16.61	$15.94 - $17.28
Q1 2017	272,315	$19,234	$16.83	$15.96 - $17.75
Q4 2016	277,400	$18,450	$14.61	$13.31 - $16.21
Q3 2016	280,097	$16,178	$13.86	$13.40 - $14.24
Q2 2016	280,371	$16,800	$13.28	$12.90 - $14.20
Q1 2016	288,641	$16,222	$12.24	$11.21 - $13.36
Q4 2015	287,841	$15,759	$12.98	$12.35 - $13.48
Q3 2015	288,325	$15,676	$12.99	$12.19 - $13.73
Q2 2015	399,940	$20,769	$11.79	$11.41 - $12.54
Q1 2015	398,807	$20,144	$11.73	$11.09 - $12.13
Q4 2014	415,506	$21,299	$11.66	$10.70 - $12.41
Q3 2014	428,274	$20,471	$10.69	$10.11 - $11.18
Q2 2014	439,977	$20,375	$9.99	$9.23 - $10.58
Q1 2014	466,267	$19,406	$9.26	$8.59 - $9.84
Q4 2013	1,355,197	$58,802	$9.82	$9.49 - $10.19
Q3 2013	1,425,648	$61,103	$9.57	$9.16 - $10.14
Q2 2013	1,535,988	$62,760	$9.58	$8.95 - $10.28