SEC Insider Transactions from MITSUI SUMITOMO INSURANCE CO LTD.

Last updated: 2026-03-14 11:55 UTC | Total transactions: 94

MITSUI SUMITOMO INSURANCE CO LTD has filed 94 insider transactions across 1 company since December 2025.

Most recent transaction: a purchase of 100897 shares of BERKLEY W R CORP ($WRB) on March 02, 2026.

Activity breakdown: 94 open-market purchases and 0 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 2, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 100897 $73.20 58,668,274.0000 400,306,000 0.17% 0.03%
March 2, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 45103 $72.29 58,567,377.0000 400,306,000 0.08% 0.01%
March 3, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 73185 $72.52 58,780,450.0000 400,306,000 0.12% 0.02%
March 3, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 38991 $71.60 58,707,265.0000 400,306,000 0.07% 0.01%
Feb. 26, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 145491 $71.65 58,367,765.0000 400,306,000 0.25% 0.04%
Feb. 26, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 7509 $72.11 58,375,274.0000 400,306,000 0.01% 0.00%
Feb. 27, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 147000 $71.63 58,522,274.0000 400,306,000 0.25% 0.04%
Feb. 23, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 16410 $71.80 57,888,620.0000 400,306,000 0.03% 0.00%
Feb. 25, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 14356 $71.77 58,222,274.0000 400,306,000 0.02% 0.00%
Feb. 25, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 154512 $71.39 58,207,918.0000 400,306,000 0.27% 0.04%
Feb. 24, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 61594 $71.28 58,053,406.0000 400,306,000 0.11% 0.02%
Feb. 24, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 103192 $70.52 57,991,812.0000 400,306,000 0.18% 0.03%
Feb. 23, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 203590 $71.09 57,872,210.0000 400,306,000 0.35% 0.05%
Feb. 19, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 44014 $71.50 57,508,038.0000 400,306,000 0.08% 0.01%
Feb. 20, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 160582 $70.80 57,668,620.0000 400,306,000 0.28% 0.04%
Feb. 19, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 300986 $70.53 57,464,024.0000 400,306,000 0.53% 0.08%
Feb. 18, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 239750 $70.58 57,117,788.0000 400,306,000 0.42% 0.06%
Feb. 18, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 45250 $70.96 57,163,038.0000 400,306,000 0.08% 0.01%
Feb. 17, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 281386 $71.19 56,878,038.0000 400,306,000 0.50% 0.07%
Feb. 13, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 15406 $69.73 56,592,058.0000 400,306,000 0.03% 0.00%
Feb. 13, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 280 $71.18 56,596,652.0000 400,306,000 0.00% 0.00%
Feb. 13, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 4314 $70.30 56,596,372.0000 400,306,000 0.01% 0.00%
Feb. 12, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 2401 $72.76 56,576,652.0000 400,306,000 0.00% 0.00%
Feb. 12, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 17599 $71.88 56,574,251.0000 400,306,000 0.03% 0.00%
Feb. 9, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 35952 $69.27 56,494,608.0000 400,306,000 0.06% 0.01%
Feb. 11, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 11163 $71.45 56,556,652.0000 400,306,000 0.02% 0.00%
Feb. 11, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 3578 $70.50 56,545,489.0000 400,306,000 0.01% 0.00%
Feb. 11, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 9289 $69.59 56,541,911.0000 400,306,000 0.02% 0.00%
Feb. 10, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 12082 $69.92 56,532,622.0000 400,306,000 0.02% 0.00%
Feb. 10, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 21884 $69.09 56,520,540.0000 400,306,000 0.04% 0.01%
Feb. 9, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 4048 $70.32 56,498,656.0000 400,306,000 0.01% 0.00%
Feb. 5, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 13472 $71.25 56,438,656.0000 400,306,000 0.02% 0.00%
Feb. 6, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 4306 $71.39 56,458,656.0000 400,306,000 0.01% 0.00%
Feb. 6, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 15694 $70.46 56,454,350.0000 400,306,000 0.03% 0.00%
Feb. 5, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 6528 $70.79 56,425,184.0000 400,306,000 0.01% 0.00%
Feb. 2, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 237062 $67.71 56,340,497.0000 400,306,000 0.42% 0.06%
Feb. 4, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 22415 $70.25 56,418,656.0000 400,306,000 0.04% 0.01%
Feb. 4, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 2585 $69.77 56,396,241.0000 400,306,000 0.00% 0.00%
Feb. 3, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 31653 $68.87 56,393,656.0000 400,306,000 0.06% 0.01%
Feb. 3, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 8347 $67.75 56,362,003.0000 400,306,000 0.01% 0.00%
Feb. 2, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 13159 $68.42 56,353,656.0000 400,306,000 0.02% 0.00%
Jan. 29, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 27718 $68.56 55,908,435.0000 400,306,000 0.05% 0.01%
Jan. 30, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 195000 $68.36 56,103,435.0000 400,306,000 0.35% 0.05%
Jan. 29, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 262282 $68.08 55,880,717.0000 400,306,000 0.47% 0.07%
Jan. 27, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 2671 $69.04 55,309,504.0000 400,306,000 0.00% 0.00%
Jan. 26, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 293611 $66.86 54,883,115.0000 400,306,000 0.54% 0.07%
Jan. 26, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 76389 $67.88 54,959,504.0000 400,306,000 0.14% 0.02%
Jan. 27, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 800 $65.86 54,960,304.0000 400,306,000 0.00% 0.00%
Jan. 27, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 11987 $66.87 54,972,291.0000 400,306,000 0.02% 0.00%
Jan. 27, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 325960 $67.40 55,298,251.0000 400,306,000 0.59% 0.08%
Jan. 27, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 8582 $68.56 55,306,833.0000 400,306,000 0.02% 0.00%
Jan. 28, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 280354 $67.58 55,589,858.0000 400,306,000 0.51% 0.07%
Jan. 28, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 28577 $67.89 55,618,435.0000 400,306,000 0.05% 0.01%
Jan. 22, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 330000 $67.45 54,221,504.0000 400,306,000 0.61% 0.08%
Jan. 23, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 166919 $67.18 54,589,504.0000 400,306,000 0.31% 0.04%
Jan. 23, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 201081 $66.77 54,422,585.0000 400,306,000 0.37% 0.05%
Jan. 20, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 265006 $67.75 53,526,510.0000 400,306,000 0.50% 0.07%
Jan. 21, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 260998 $67.60 53,891,504.0000 400,306,000 0.49% 0.07%
Jan. 21, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 59002 $66.95 53,630,506.0000 400,306,000 0.11% 0.01%
Jan. 20, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 44994 $68.08 53,571,504.0000 400,306,000 0.08% 0.01%
Jan. 15, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 68093 $69.45 52,961,504.0000 400,306,000 0.13% 0.02%
Jan. 16, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 58691 $68.79 53,261,504.0000 400,306,000 0.11% 0.01%
Jan. 16, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 241309 $68.03 53,202,813.0000 400,306,000 0.46% 0.06%
Jan. 15, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 166907 $68.68 52,893,411.0000 400,306,000 0.32% 0.04%
Jan. 13, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 118501 $67.82 52,290,005.0000 400,306,000 0.23% 0.03%
Jan. 14, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 208272 $69.23 52,726,504.0000 400,306,000 0.40% 0.05%
Jan. 14, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 21728 $68.80 52,518,232.0000 400,306,000 0.04% 0.01%
Jan. 13, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 206499 $68.15 52,496,504.0000 400,306,000 0.39% 0.05%
Jan. 12, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 256041 $68.73 52,171,504.0000 400,306,000 0.49% 0.06%
Jan. 8, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 151511 $70.32 51,640,463.0000 400,306,000 0.29% 0.04%
Jan. 9, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 8150 $70.12 51,915,463.0000 400,306,000 0.02% 0.00%
Jan. 9, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 105674 $69.56 51,907,313.0000 400,306,000 0.20% 0.03%
Jan. 9, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 161176 $68.48 51,801,639.0000 400,306,000 0.31% 0.04%
Jan. 8, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 39302 $69.69 51,488,952.0000 400,306,000 0.08% 0.01%
Jan. 8, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 4187 $68.79 51,449,650.0000 400,306,000 0.01% 0.00%
Jan. 5, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 35894 $70.23 50,811,489.0000 400,306,000 0.07% 0.01%
Jan. 6, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 122931 $69.93 51,088,106.0000 400,306,000 0.24% 0.03%
Jan. 5, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 153686 $70.78 50,965,175.0000 400,306,000 0.30% 0.04%
Jan. 5, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 11350 $69.20 50,775,595.0000 400,306,000 0.02% 0.00%
Jan. 7, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 10378 $69.20 51,445,463.0000 400,306,000 0.02% 0.00%
Jan. 7, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 254622 $68.47 51,435,085.0000 400,306,000 0.50% 0.06%
Jan. 6, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 92357 $70.21 51,180,463.0000 400,306,000 0.18% 0.02%
Jan. 2, 2026 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 237734 $69.35 50,764,245.0000 400,306,000 0.47% 0.06%
Dec. 31, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 230000 $70.27 50,526,511.0000 400,306,000 0.46% 0.06%
Dec. 30, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 205000 $70.83 50,296,511.0000 400,306,000 0.41% 0.05%
Dec. 23, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 2027 $71.15 49,446,511.0000 400,306,000 0.00% 0.00%
Dec. 29, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 205000 $70.77 50,091,511.0000 400,306,000 0.41% 0.05%
Dec. 26, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 220000 $70.56 49,886,511.0000 400,306,000 0.44% 0.05%
Dec. 24, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 220000 $70.51 49,666,511.0000 400,306,000 0.44% 0.05%
Dec. 23, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 232546 $70.31 49,444,484.0000 400,306,000 0.47% 0.06%
Dec. 22, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 39940 $69.97 49,049,878.0000 400,306,000 0.08% 0.01%
Dec. 22, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 162060 $70.33 49,211,938.0000 400,306,000 0.33% 0.04%
Dec. 18, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 204350 $69.38 48,805,938.0000 400,306,000 0.42% 0.05%
Dec. 19, 2025 BERKLEY W R CORP $WRB MITSUI SUMITOMO INSURANCE CO LTD Not found P Common Stock 204000 $69.50 49,009,938.0000 400,306,000 0.42% 0.05%

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