Companies / W. R. Berkley Corporation / Activity

Activity — W. R. Berkley Corporation

95 moves.

Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
InsidersInstitutions
DateActorActionSecurityValueShares ΔPosition afterImpact
Jan 22, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$22.26M+330K
+0.61%
54,221,504
14.61% of shares
high
Jan 27, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$21.97M+326K
+0.59%
55,298,251
14.90% of shares
high
Feb 19, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$21.23M+301K
+0.53%
57,464,024
15.48% of shares
high
Feb 17, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$20.03M+281K
+0.50%
56,878,038
15.32% of shares
high
Jan 26, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$19.63M+294K
+0.54%
54,883,115
14.78% of shares
high
Jan 28, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$18.95M+280K
+0.51%
55,589,858
14.97% of shares
high
Jan 20, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$17.95M+265K
+0.50%
53,526,510
14.42% of shares
high
Jan 29, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$17.86M+262K
+0.47%
55,880,717
15.05% of shares
high
Jan 21, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$17.64M+261K
+0.49%
53,891,504
14.52% of shares
high
Jan 12, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$17.60M+256K
+0.49%
52,171,504
14.05% of shares
high
Jan 7, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$17.43M+255K
+0.50%
51,435,085
13.86% of shares
high
Feb 18, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$16.92M+240K
+0.42%
57,117,788
15.39% of shares
high
Jan 2, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$16.49M+238K
+0.47%
50,764,245
13.67% of shares
high
Jan 16, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$16.42M+241K
+0.46%
53,202,813
14.33% of shares
high
Dec 31, 2025Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$16.16M+230K
+0.46%
50,526,511
13.61% of shares
high
Feb 2, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$16.05M+237K
+0.42%
56,340,497
15.18% of shares
high
Dec 30, 2025Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$14.52M+205K
+0.41%
50,296,511
13.55% of shares
high
Feb 23, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$14.47M+204K
+0.35%
57,872,210
15.59% of shares
high
Jan 14, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$14.42M+208K
+0.40%
52,726,504
14.20% of shares
high
Jan 13, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$14.07M+206K
+0.39%
52,496,504
14.14% of shares
high
Jan 23, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$13.43M+201K
+0.37%
54,422,585
14.66% of shares
high
Jan 30, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$13.33M+195K
+0.35%
56,103,435
15.11% of shares
high
Jan 15, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$11.46M+167K
+0.32%
52,893,411
14.25% of shares
high
Feb 20, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$11.37M+161K
+0.28%
57,668,620
15.53% of shares
high
Jan 23, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$11.21M+167K
+0.31%
54,589,504
14.71% of shares
high
Jan 9, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$11.04M+161K
+0.31%
51,801,639
13.95% of shares
high
Feb 25, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$11.03M+155K
+0.27%
58,207,918
15.68% of shares
high
Jan 5, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$10.88M+154K
+0.30%
50,965,175
13.73% of shares
high
Jan 8, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$10.65M+152K
+0.29%
51,640,463
13.91% of shares
high
Feb 27, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$10.53M+147K
+0.25%
58,522,274
15.76% of shares
high
Feb 26, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$10.42M+145K
+0.25%
58,367,765
15.72% of shares
high
Jan 6, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$8.60M+123K
+0.24%
51,088,106
13.76% of shares
high
Jan 13, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$8.04M+119K
+0.23%
52,290,005
14.09% of shares
high
Mar 2, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$7.39M+101K
+0.17%
58,668,274
15.80% of shares
high
Jan 9, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$7.35M+106K
+0.20%
51,907,313
13.98% of shares
high
Feb 24, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$7.28M+103K
+0.18%
57,991,812
15.62% of shares
high
Jan 6, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$6.48M+92K
+0.18%
51,180,463
13.79% of shares
high
Mar 3, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$5.31M+73K
+0.12%
58,780,450
15.83% of shares
high
Jan 26, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$5.19M+76K
+0.14%
54,959,504
14.80% of shares
high
Jan 15, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$4.73M+68K
+0.13%
52,961,504
14.27% of shares
high
Feb 24, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$4.39M+62K
+0.11%
58,053,406
15.64% of shares
high
Jan 16, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$4.04M+59K
+0.11%
53,261,504
14.35% of shares
high
Jan 21, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$3.95M+59K
+0.11%
53,630,506
14.45% of shares
high
Mar 2, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$3.26M+45K
+0.08%
58,567,377
15.78% of shares
high
Feb 18, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$3.21M+45K
+0.08%
57,163,038
15.40% of shares
high
Feb 19, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$3.15M+44K
+0.08%
57,508,038
15.49% of shares
high
Jan 20, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$3.06M+45K
+0.08%
53,571,504
14.43% of shares
high
Mar 3, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$2.79M+39K
+0.07%
58,707,265
15.81% of shares
high
Jan 8, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$2.74M+39K
+0.08%
51,488,952
13.87% of shares
high
Jan 5, 2026Mitsui Sumitomo Insurance Co., Ltd.
10% owner
BuyCommon Stock$2.52M+36K
+0.07%
50,811,489
13.69% of shares
high
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