MITSUI SUMITOMO INSURANCE CO LTD
In the last 12 months, MITSUI SUMITOMO INSURANCE CO LTD filed 94 SEC Form 4 transactions across 1 issuer — $705.5M in open-market purchases and $0 in open-market sales. 0% of these transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.
- $705.5MOpen-market buys (1y)
- $0Open-market sells (1y)
- 94Transactions filed
- 1Distinct issuers
- 0%Under Rule 10b5-1
- 2026-03-03Latest filing
Issuers Filed For By open-market buy volume
Recent Form 4 Filings Most recent 75 of 94 (1-year window)
| Date | Ticker | Company | Type | SEC Code | Value | Shares | Price |
|---|---|---|---|---|---|---|---|
| 2026-03-03 | WRB | BERKLEY W R CORP | Buy | — | $2.8M | 38,991 | $71.6 |
| 2026-03-03 | WRB | BERKLEY W R CORP | Buy | — | $5.3M | 73,185 | $72.5 |
| 2026-03-02 | WRB | BERKLEY W R CORP | Buy | — | $3.3M | 45,103 | $72.3 |
| 2026-03-02 | WRB | BERKLEY W R CORP | Buy | — | $7.4M | 100,897 | $73.2 |
| 2026-02-27 | WRB | BERKLEY W R CORP | Buy | — | $10.5M | 147,000 | $71.6 |
| 2026-02-26 | WRB | BERKLEY W R CORP | Buy | — | $10.4M | 145,491 | $71.6 |
| 2026-02-26 | WRB | BERKLEY W R CORP | Buy | — | $541.5K | 7,509 | $72.1 |
| 2026-02-25 | WRB | BERKLEY W R CORP | Buy | — | $11.0M | 154,512 | $71.4 |
| 2026-02-25 | WRB | BERKLEY W R CORP | Buy | — | $1.0M | 14,356 | $71.8 |
| 2026-02-24 | WRB | BERKLEY W R CORP | Buy | — | $7.3M | 103,192 | $70.5 |
| 2026-02-24 | WRB | BERKLEY W R CORP | Buy | — | $4.4M | 61,594 | $71.3 |
| 2026-02-23 | WRB | BERKLEY W R CORP | Buy | — | $14.5M | 203,590 | $71.1 |
| 2026-02-23 | WRB | BERKLEY W R CORP | Buy | — | $1.2M | 16,410 | $71.8 |
| 2026-02-20 | WRB | BERKLEY W R CORP | Buy | — | $11.4M | 160,582 | $70.8 |
| 2026-02-19 | WRB | BERKLEY W R CORP | Buy | — | $21.2M | 300,986 | $70.5 |
| 2026-02-19 | WRB | BERKLEY W R CORP | Buy | — | $3.1M | 44,014 | $71.5 |
| 2026-02-18 | WRB | BERKLEY W R CORP | Buy | — | $16.9M | 239,750 | $70.6 |
| 2026-02-18 | WRB | BERKLEY W R CORP | Buy | — | $3.2M | 45,250 | $71.0 |
| 2026-02-17 | WRB | BERKLEY W R CORP | Buy | — | $20.0M | 281,386 | $71.2 |
| 2026-02-13 | WRB | BERKLEY W R CORP | Buy | — | $1.1M | 15,406 | $69.7 |
| 2026-02-13 | WRB | BERKLEY W R CORP | Buy | — | $303.3K | 4,314 | $70.3 |
| 2026-02-13 | WRB | BERKLEY W R CORP | Buy | — | $19.9K | 280 | $71.2 |
| 2026-02-12 | WRB | BERKLEY W R CORP | Buy | — | $1.3M | 17,599 | $71.9 |
| 2026-02-12 | WRB | BERKLEY W R CORP | Buy | — | $174.7K | 2,401 | $72.8 |
| 2026-02-11 | WRB | BERKLEY W R CORP | Buy | — | $646.4K | 9,289 | $69.6 |
| 2026-02-11 | WRB | BERKLEY W R CORP | Buy | — | $252.3K | 3,578 | $70.5 |
| 2026-02-11 | WRB | BERKLEY W R CORP | Buy | — | $797.6K | 11,163 | $71.4 |
| 2026-02-10 | WRB | BERKLEY W R CORP | Buy | — | $1.5M | 21,884 | $69.1 |
| 2026-02-10 | WRB | BERKLEY W R CORP | Buy | — | $844.8K | 12,082 | $69.9 |
| 2026-02-09 | WRB | BERKLEY W R CORP | Buy | — | $2.5M | 35,952 | $69.3 |
| 2026-02-09 | WRB | BERKLEY W R CORP | Buy | — | $284.7K | 4,048 | $70.3 |
| 2026-02-06 | WRB | BERKLEY W R CORP | Buy | — | $1.1M | 15,694 | $70.5 |
| 2026-02-06 | WRB | BERKLEY W R CORP | Buy | — | $307.4K | 4,306 | $71.4 |
| 2026-02-05 | WRB | BERKLEY W R CORP | Buy | — | $462.1K | 6,528 | $70.8 |
| 2026-02-05 | WRB | BERKLEY W R CORP | Buy | — | $959.9K | 13,472 | $71.3 |
| 2026-02-04 | WRB | BERKLEY W R CORP | Buy | — | $180.3K | 2,585 | $69.8 |
| 2026-02-04 | WRB | BERKLEY W R CORP | Buy | — | $1.6M | 22,415 | $70.3 |
| 2026-02-03 | WRB | BERKLEY W R CORP | Buy | — | $565.5K | 8,347 | $67.7 |
| 2026-02-03 | WRB | BERKLEY W R CORP | Buy | — | $2.2M | 31,653 | $68.9 |
| 2026-02-02 | WRB | BERKLEY W R CORP | Buy | — | $16.1M | 237,062 | $67.7 |
| 2026-02-02 | WRB | BERKLEY W R CORP | Buy | — | $900.3K | 13,159 | $68.4 |
| 2026-01-30 | WRB | BERKLEY W R CORP | Buy | — | $13.3M | 195,000 | $68.4 |
| 2026-01-29 | WRB | BERKLEY W R CORP | Buy | — | $17.9M | 262,282 | $68.1 |
| 2026-01-29 | WRB | BERKLEY W R CORP | Buy | — | $1.9M | 27,718 | $68.6 |
| 2026-01-28 | WRB | BERKLEY W R CORP | Buy | — | $18.9M | 280,354 | $67.6 |
| 2026-01-28 | WRB | BERKLEY W R CORP | Buy | — | $1.9M | 28,577 | $67.9 |
| 2026-01-27 | WRB | BERKLEY W R CORP | Buy | — | $52.7K | 800 | $65.9 |
| 2026-01-27 | WRB | BERKLEY W R CORP | Buy | — | $801.5K | 11,987 | $66.9 |
| 2026-01-27 | WRB | BERKLEY W R CORP | Buy | — | $22.0M | 325,960 | $67.4 |
| 2026-01-27 | WRB | BERKLEY W R CORP | Buy | — | $588.4K | 8,582 | $68.6 |
| 2026-01-27 | WRB | BERKLEY W R CORP | Buy | — | $184.4K | 2,671 | $69.0 |
| 2026-01-26 | WRB | BERKLEY W R CORP | Buy | — | $19.6M | 293,611 | $66.9 |
| 2026-01-26 | WRB | BERKLEY W R CORP | Buy | — | $5.2M | 76,389 | $67.9 |
| 2026-01-23 | WRB | BERKLEY W R CORP | Buy | — | $13.4M | 201,081 | $66.8 |
| 2026-01-23 | WRB | BERKLEY W R CORP | Buy | — | $11.2M | 166,919 | $67.2 |
| 2026-01-22 | WRB | BERKLEY W R CORP | Buy | — | $22.3M | 330,000 | $67.5 |
| 2026-01-21 | WRB | BERKLEY W R CORP | Buy | — | $4.0M | 59,002 | $67.0 |
| 2026-01-21 | WRB | BERKLEY W R CORP | Buy | — | $17.6M | 260,998 | $67.6 |
| 2026-01-20 | WRB | BERKLEY W R CORP | Buy | — | $18.0M | 265,006 | $67.8 |
| 2026-01-20 | WRB | BERKLEY W R CORP | Buy | — | $3.1M | 44,994 | $68.1 |
| 2026-01-16 | WRB | BERKLEY W R CORP | Buy | — | $16.4M | 241,309 | $68.0 |
| 2026-01-16 | WRB | BERKLEY W R CORP | Buy | — | $4.0M | 58,691 | $68.8 |
| 2026-01-15 | WRB | BERKLEY W R CORP | Buy | — | $11.5M | 166,907 | $68.7 |
| 2026-01-15 | WRB | BERKLEY W R CORP | Buy | — | $4.7M | 68,093 | $69.4 |
| 2026-01-14 | WRB | BERKLEY W R CORP | Buy | — | $1.5M | 21,728 | $68.8 |
| 2026-01-14 | WRB | BERKLEY W R CORP | Buy | — | $14.4M | 208,272 | $69.2 |
| 2026-01-13 | WRB | BERKLEY W R CORP | Buy | — | $8.0M | 118,501 | $67.8 |
| 2026-01-13 | WRB | BERKLEY W R CORP | Buy | — | $14.1M | 206,499 | $68.1 |
| 2026-01-12 | WRB | BERKLEY W R CORP | Buy | — | $17.6M | 256,041 | $68.7 |
| 2026-01-09 | WRB | BERKLEY W R CORP | Buy | — | $11.0M | 161,176 | $68.5 |
| 2026-01-09 | WRB | BERKLEY W R CORP | Buy | — | $7.4M | 105,674 | $69.6 |
| 2026-01-09 | WRB | BERKLEY W R CORP | Buy | — | $571.4K | 8,150 | $70.1 |
| 2026-01-08 | WRB | BERKLEY W R CORP | Buy | — | $288.0K | 4,187 | $68.8 |
| 2026-01-08 | WRB | BERKLEY W R CORP | Buy | — | $2.7M | 39,302 | $69.7 |
| 2026-01-08 | WRB | BERKLEY W R CORP | Buy | — | $10.7M | 151,511 | $70.3 |
Showing the most recent 75 of 94 transactions.
Methodology & FAQ
How These Filings Are Sourced
All transactions on this page are sourced directly from SEC EDGAR. A complete description of the open-market vs grant distinction, the Rule 10b5-1 plan-reference heuristic, and the per-insider name matching is documented in the Methodology.
What companies does MITSUI SUMITOMO INSURANCE CO LTD file Form 4 disclosures for?
MITSUI SUMITOMO INSURANCE CO LTD has filed SEC Form 4 transactions for 1 issuer in the last 12 months: BERKLEY W R CORP (WRB).
What does the 10b5-1 badge mean on these transactions?
Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Of MITSUI SUMITOMO INSURANCE CO LTD's 94 reported transactions in the last 12 months, 0 (0%) reference a 10b5-1 trading plan in the Form 4 footnotes.
Are these all the transactions MITSUI SUMITOMO INSURANCE CO LTD has executed?
This page shows SEC Form 4 transactions on record in Pactolio's tracked universe for the last 12 months. Form 4 only covers transactions in registered classes of equity at issuers where the person qualifies as an insider (officer, director, or 10% beneficial owner). Trades in funds, foreign issuers, or non-insider positions are not disclosed under Form 4 and are not included here.