MITSUI SUMITOMO INSURANCE CO LTD
CIK: 0001142206
MITSUI SUMITOMO INSURANCE CO LTD's purchase track record
How the stock did after each of MITSUI SUMITOMO INSURANCE CO LTD's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.
Purchases measured
9
of 9 since December 18, 2025
Stock higher 6 months later
67%
3 months: 11%
Median 6-month return
+2.0%
3 months: -4.7%
Beat the S&P 500
11%
median -7.9% vs. index
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 2/25/2026 | WRB | $52.30M | -8.8% | -3.2% | +10.5% |
| 2/17/2026 | WRB | $103.23M | -3.4% | -0.2% | +12.4% |
| 2/6/2026 | WRB | $11.08M | -6.6% | +2.7% | +11.9% |
| 1/29/2026 | WRB | $55.96M | -2.0% | +8.6% | +6.7% |
| 1/21/2026 | WRB | $137.79M | +0.1% | +8.2% | +9.1% |
| 1/13/2026 | WRB | $95.69M | -2.8% | +6.9% | +8.3% |
| 1/5/2026 | WRB | $97.66M | -6.3% | +1.3% | +9.2% |
| 12/26/2025 | WRB | $77.20M | -8.1% | +2.0% | +6.1% |
| 12/18/2025 | WRB | $74.56M | -4.7% | -3.3% | +10.7% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Transaction History
| WRB | ▲ Buy | Open Market | 38,991 | $2.8M | 3/3/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 73,185 | $5.3M | 3/3/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 45,103 | $3.3M | 3/2/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 100,897 | $7.4M | 3/2/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 147,000 | $10.5M | 2/27/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 145,491 | $10.4M | 2/26/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 7,509 | $542K | 2/26/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 154,512 | $11.0M | 2/25/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 14,356 | $1.0M | 2/25/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 103,192 | $7.3M | 2/24/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 61,594 | $4.4M | 2/24/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 203,590 | $14.5M | 2/23/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 16,410 | $1.2M | 2/23/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 160,582 | $11.4M | 2/20/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 300,986 | $21.2M | 2/19/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 44,014 | $3.1M | 2/19/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 239,750 | $16.9M | 2/18/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 45,250 | $3.2M | 2/18/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 281,386 | $20.0M | 2/17/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 4,314 | $303K | 2/13/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 280 | $20K | 2/13/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 15,406 | $1.1M | 2/13/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 17,599 | $1.3M | 2/12/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 2,401 | $175K | 2/12/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 9,289 | $646K | 2/11/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 3,578 | $252K | 2/11/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 11,163 | $798K | 2/11/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 21,884 | $1.5M | 2/10/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 12,082 | $845K | 2/10/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 35,952 | $2.5M | 2/9/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 4,048 | $285K | 2/9/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 15,694 | $1.1M | 2/6/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 4,306 | $307K | 2/6/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 6,528 | $462K | 2/5/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 13,472 | $960K | 2/5/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 2,585 | $180K | 2/4/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 22,415 | $1.6M | 2/4/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 8,347 | $565K | 2/3/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 31,653 | $2.2M | 2/3/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 237,062 | $16.1M | 2/2/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 13,159 | $900K | 2/2/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 195,000 | $13.3M | 1/30/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 262,282 | $17.9M | 1/29/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 27,718 | $1.9M | 1/29/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 280,354 | $18.9M | 1/28/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 28,577 | $1.9M | 1/28/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 800 | $53K | 1/27/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 11,987 | $802K | 1/27/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 325,960 | $22.0M | 1/27/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 8,582 | $588K | 1/27/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 2,671 | $184K | 1/27/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 293,611 | $19.6M | 1/26/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 76,389 | $5.2M | 1/26/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 201,081 | $13.4M | 1/23/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 166,919 | $11.2M | 1/23/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 330,000 | $22.3M | 1/22/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 59,002 | $4.0M | 1/21/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 260,998 | $17.6M | 1/21/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 265,006 | $18.0M | 1/20/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 44,994 | $3.1M | 1/20/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 241,309 | $16.4M | 1/16/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 58,691 | $4.0M | 1/16/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 68,093 | $4.7M | 1/15/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 166,907 | $11.5M | 1/15/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 21,728 | $1.5M | 1/14/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 208,272 | $14.4M | 1/14/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 118,501 | $8.0M | 1/13/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 206,499 | $14.1M | 1/13/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 256,041 | $17.6M | 1/12/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 161,176 | $11.0M | 1/9/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 105,674 | $7.4M | 1/9/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 8,150 | $571K | 1/9/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 4,187 | $288K | 1/8/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 39,302 | $2.7M | 1/8/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 151,511 | $10.7M | 1/8/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 254,622 | $17.4M | 1/7/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 10,378 | $718K | 1/7/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 92,357 | $6.5M | 1/6/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 122,931 | $8.6M | 1/6/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 11,350 | $785K | 1/5/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 35,894 | $2.5M | 1/5/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 153,686 | $10.9M | 1/5/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 237,734 | $16.5M | 1/2/2026 | View on chart |
| WRB | ▲ Buy | Open Market | 230,000 | $16.2M | 12/31/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 205,000 | $14.5M | 12/30/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 205,000 | $14.5M | 12/29/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 220,000 | $15.5M | 12/26/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 220,000 | $15.5M | 12/24/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 232,546 | $16.4M | 12/23/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 2,027 | $144K | 12/23/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 39,940 | $2.8M | 12/22/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 162,060 | $11.4M | 12/22/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 204,000 | $14.2M | 12/19/2025 | View on chart |
| WRB | ▲ Buy | Open Market | 204,350 | $14.2M | 12/18/2025 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
W.R. Berkley Eyes Earnings Beat in Q3
W.R. Berkley is expected to post a Q3 earnings beat, with analysts highlighting key metrics such as reserve gains and investment income. The company’s performance is being closely watched as part of the broader insurance earnings season. Investors are noting the firm’s solid fundamentals, including a trailing P/E of 14.3 and a dividend yield of 0.54%.
W.R. Berkley Eyes Earnings Beat in Q3. W.R. Berkley is expected to post a Q3 earnings beat, with analysts highlighting key metrics such as reserve gains and investment income. The company’s performance is being closely watched as part of the broader insurance earnings season. Investors are noting the firm’s solid fundamentals, including a trailing P/E of 14.3 and a dividend yield of 0.54%.