Insider trades › MS&AD Insurance Group Holdings, Inc.
MS&AD Insurance Group Holdings, Inc.
A corporate insider: an officer, director or owner of more than 10% of a company. Insiders report their trades to the SEC on Form 4The form insiders use to report each purchase or sale of their company's stock. It is due within two business days of the trade. · Last filing Feb 25, 2026
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Using 13F.ai, list MS&AD Insurance Group Holdings, Inc.'s open-market buys and sells across companies in the last two years, with the Form 4 links.
Using 13F.ai, how did the stocks MS&AD Insurance Group Holdings, Inc. bought perform after the purchase compared with the S&P 500?
Using 13F.ai, are other insiders at the same companies buying or selling at the same time as MS&AD Insurance Group Holdings, Inc.?
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Buying and selling by quarter
Dollars bought and sold on the open market over the last two years.
Bought Sold
By trade date, using the shares and price reported for each trade. Stock grants, option exercises and shares withheld for tax are left out.
Roles
The companies where this person reports as an insider, and their position at each, most recent first.
| Company | Role | Last filed |
|---|---|---|
| WRB W.R. Berkley Corporation | 10% owner | Feb 25, 2026 |
Roles come from the filings themselves and can change over time.
Latest open-market trades
Purchases and sales at every company, most recent filing first.
| How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss. | Filing | ||||||
|---|---|---|---|---|---|---|---|
| Feb 25, 2026 | WRB W.R. Berkley Corporation | Buy | 154,512 | $71.39 | $11.0M | -0.6% | Form 4 ↗ |
| Feb 25, 2026 | WRB W.R. Berkley Corporation | Buy | 14,356 | $71.77 | $1.0M | -0.6% | Form 4 ↗ |
| Feb 24, 2026 | WRB W.R. Berkley Corporation | Buy | 103,192 | $70.52 | $7.3M | -1.6% | Form 4 ↗ |
| Feb 24, 2026 | WRB W.R. Berkley Corporation | Buy | 61,594 | $71.28 | $4.4M | -1.6% | Form 4 ↗ |
| Feb 23, 2026 | WRB W.R. Berkley Corporation | Buy | 203,590 | $71.09 | $14.5M | -1.5% | Form 4 ↗ |
| Feb 23, 2026 | WRB W.R. Berkley Corporation | Buy | 16,410 | $71.80 | $1.2M | -1.5% | Form 4 ↗ |
| Feb 20, 2026 | WRB W.R. Berkley Corporation | Buy | 160,582 | $70.80 | $11.4M | -0.5% | Form 4 ↗ |
| Feb 19, 2026 | WRB W.R. Berkley Corporation | Buy | 300,986 | $70.53 | $21.2M | -0.1% | Form 4 ↗ |
| Feb 19, 2026 | WRB W.R. Berkley Corporation | Buy | 44,014 | $71.50 | $3.1M | -0.1% | Form 4 ↗ |
| Feb 13, 2026 | WRB W.R. Berkley Corporation | Buy | 15,406 | $69.73 | $1.1M | +0.5% | Form 4 ↗ |
| Feb 13, 2026 | WRB W.R. Berkley Corporation | Buy | 4,314 | $70.30 | $303.3K | +0.5% | Form 4 ↗ |
| Feb 13, 2026 | WRB W.R. Berkley Corporation | Buy | 280 | $71.18 | $19.9K | +0.5% | Form 4 ↗ |
| Feb 12, 2026 | WRB W.R. Berkley Corporation | Buy | 2,401 | $72.76 | $174.7K | -2.6% | Form 4 ↗ |
| Feb 12, 2026 | WRB W.R. Berkley Corporation | Buy | 17,599 | $71.88 | $1.3M | -2.6% | Form 4 ↗ |
| Feb 11, 2026 | WRB W.R. Berkley Corporation | Buy | 3,578 | $70.50 | $252.2K | -0.8% | Form 4 ↗ |
| Feb 11, 2026 | WRB W.R. Berkley Corporation | Buy | 9,289 | $69.59 | $646.4K | -0.8% | Form 4 ↗ |
| Feb 11, 2026 | WRB W.R. Berkley Corporation | Buy | 11,163 | $71.45 | $797.6K | -0.8% | Form 4 ↗ |
| Feb 10, 2026 | WRB W.R. Berkley Corporation | Buy | 12,082 | $69.92 | $844.8K | +1.8% | Form 4 ↗ |
| Feb 10, 2026 | WRB W.R. Berkley Corporation | Buy | 21,884 | $69.09 | $1.5M | +1.8% | Form 4 ↗ |
| Feb 9, 2026 | WRB W.R. Berkley Corporation | Buy | 4,048 | $70.32 | $284.7K | +3.1% | Form 4 ↗ |
| Feb 9, 2026 | WRB W.R. Berkley Corporation | Buy | 35,952 | $69.27 | $2.5M | +3.1% | Form 4 ↗ |
| Feb 6, 2026 | WRB W.R. Berkley Corporation | Buy | 15,694 | $70.46 | $1.1M | +0.8% | Form 4 ↗ |
| Feb 6, 2026 | WRB W.R. Berkley Corporation | Buy | 4,306 | $71.39 | $307.4K | +0.8% | Form 4 ↗ |
| Feb 5, 2026 | WRB W.R. Berkley Corporation | Buy | 6,528 | $70.79 | $462.1K | -2.7% | Form 4 ↗ |
| Feb 5, 2026 | WRB W.R. Berkley Corporation | Buy | 13,472 | $71.25 | $959.9K | -2.7% | Form 4 ↗ |
| Jan 28, 2026 | WRB W.R. Berkley Corporation | Buy | 28,577 | $67.89 | $1.9M | +6.0% | Form 4 ↗ |
| Jan 28, 2026 | WRB W.R. Berkley Corporation | Buy | 280,354 | $67.58 | $18.9M | +6.0% | Form 4 ↗ |
| Jan 27, 2026 | WRB W.R. Berkley Corporation | Buy | 800 | $65.86 | $52.7K | +6.7% | Form 4 ↗ |
| Jan 27, 2026 | WRB W.R. Berkley Corporation | Buy | 11,987 | $66.87 | $801.6K | +6.7% | Form 4 ↗ |
| Jan 27, 2026 | WRB W.R. Berkley Corporation | Buy | 325,960 | $67.40 | $22.0M | +6.7% | Form 4 ↗ |
| Jan 27, 2026 | WRB W.R. Berkley Corporation | Buy | 8,582 | $68.56 | $588.4K | +6.7% | Form 4 ↗ |
| Jan 27, 2026 | WRB W.R. Berkley Corporation | Buy | 2,671 | $69.04 | $184.4K | +6.7% | Form 4 ↗ |
| Jan 26, 2026 | WRB W.R. Berkley Corporation | Buy | 293,611 | $66.86 | $19.6M | +6.9% | Form 4 ↗ |
| Jan 26, 2026 | WRB W.R. Berkley Corporation | Buy | 76,389 | $67.88 | $5.2M | +6.9% | Form 4 ↗ |
| Jan 23, 2026 | WRB W.R. Berkley Corporation | Buy | 166,919 | $67.18 | $11.2M | +5.9% | Form 4 ↗ |
| Jan 23, 2026 | WRB W.R. Berkley Corporation | Buy | 201,081 | $66.77 | $13.4M | +5.9% | Form 4 ↗ |
| Jan 22, 2026 | WRB W.R. Berkley Corporation | Buy | 330,000 | $67.45 | $22.3M | +5.2% | Form 4 ↗ |
| Jan 21, 2026 | WRB W.R. Berkley Corporation | Buy | 59,002 | $66.95 | $4.0M | +4.6% | Form 4 ↗ |
| Jan 21, 2026 | WRB W.R. Berkley Corporation | Buy | 260,998 | $67.60 | $17.6M | +4.6% | Form 4 ↗ |
| Jan 20, 2026 | WRB W.R. Berkley Corporation | Buy | 265,006 | $67.75 | $18.0M | +3.0% | Form 4 ↗ |
| Jan 20, 2026 | WRB W.R. Berkley Corporation | Buy | 44,994 | $68.08 | $3.1M | +3.0% | Form 4 ↗ |
| Jan 16, 2026 | WRB W.R. Berkley Corporation | Buy | 241,309 | $68.03 | $16.4M | +5.0% | Form 4 ↗ |
| Jan 16, 2026 | WRB W.R. Berkley Corporation | Buy | 58,691 | $68.79 | $4.0M | +5.0% | Form 4 ↗ |
| Jan 15, 2026 | WRB W.R. Berkley Corporation | Buy | 166,907 | $68.68 | $11.5M | +3.7% | Form 4 ↗ |
| Jan 15, 2026 | WRB W.R. Berkley Corporation | Buy | 68,093 | $69.45 | $4.7M | +3.7% | Form 4 ↗ |
| Jan 2, 2026 | WRB W.R. Berkley Corporation | Buy | 237,734 | $69.35 | $16.5M | +1.2% | Form 4 ↗ |
| Dec 31, 2025 | WRB W.R. Berkley Corporation | Buy | 230,000 | $70.27 | $16.2M | -0.2% | Form 4 ↗ |
| Dec 30, 2025 | WRB W.R. Berkley Corporation | Buy | 205,000 | $70.83 | $14.5M | -0.4% | Form 4 ↗ |
| Dec 22, 2025 | WRB W.R. Berkley Corporation | Buy | 162,060 | $70.33 | $11.4M | +0.1% | Form 4 ↗ |
| Dec 22, 2025 | WRB W.R. Berkley Corporation | Buy | 39,940 | $69.97 | $2.8M | +0.1% | Form 4 ↗ |
| Dec 19, 2025 | WRB W.R. Berkley Corporation | Buy | 204,000 | $69.50 | $14.2M | +0.8% | Form 4 ↗ |
| Dec 18, 2025 | WRB W.R. Berkley Corporation | Buy | 204,350 | $69.38 | $14.2M | -0.2% | Form 4 ↗ |
Each row links to its Form 4. Since trade compares the stock’s move from the close on the trade date (or the next trading day) to its latest close with the S&P 500 over the same days, adjusted for splits and excluding dividends. It describes the stock, not what the trader made: we don’t know their purchase price, position size or later sales. A dash means the trade isn’t matched to a listed stock, or there is no closing price after it yet.
When several people report on the same filing, we list it under the first one named, so trades by someone usually listed second may be missing here. Information, not investment advice: see the disclaimer.