WRB insider buying
Every open-market purchase of Berkley W R Corp (WRB) stock by its officers, directors and major shareholders, from SEC Form 4 filings.
Bought, last 12 months$705.46M
Insiders buying (12m)2
Purchases on record20
Last purchase filedMar 3, 2026
In the last 12 months, 2 insiders of Berkley W R Corp bought $705.46M of WRB stock on the open market in 20 reported purchases. The most recent was filed on Mar 3, 2026: Mitsui Sumitomo Insurance Co Ltd +1 (10% Owner) bought 258,176 shares at $72.61, worth $18.75M. The largest purchase on record here is $69.30M by MS&AD Insurance Group Holdings, Inc. +1 on Jan 26, 2026. 20 of these trades were pre-scheduled under a Rule 10b5-1 plan.
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| Filed | Insider | Value | Shares | Price | Stake | Trade | |
|---|---|---|---|---|---|---|---|
| Mar 3 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $18.75M | 258,176 | $72.61 | +0% | Mar 2 | SEC |
| Feb 27 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $21.50M | 300,000 | $71.65 | +0% | Feb 26 | SEC |
| Feb 25 | MS&AD Insurance Group Holding…10b5-110% Owner | $39.38M | 553,654 | $71.13 | +1% | Feb 23 | SEC |
| Feb 20 | MS&AD Insurance Group Holding…10b5-110% Owner | $35.74M | 505,582 | $70.70 | +1% | Feb 19 | SEC |
| Feb 18 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $40.16M | 566,386 | $70.91 | +1% | Feb 17 | SEC |
| Feb 13 | MS&AD Insurance Group Holding…10b5-110% Owner | $2.84M | 40,000 | $70.93 | +0% | Feb 12 | SEC |
| Feb 11 | MS&AD Insurance Group Holding…10b5-110% Owner | $6.83M | 97,996 | $69.68 | +0% | Feb 9 | SEC |
| Feb 6 | MS&AD Insurance Group Holding…10b5-110% Owner | $2.84M | 40,000 | $70.88 | +0% | Feb 5 | SEC |
| Feb 4 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $21.45M | 315,221 | $68.05 | +1% | Feb 2 | SEC |
| Jan 30 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $33.09M | 485,000 | $68.22 | +1% | Jan 29 | SEC |
| Jan 28 | MS&AD Insurance Group Holding…10b5-110% Owner | $69.30M | 1,028,931 | $67.35 | +2% | Jan 26 | SEC |
| Jan 23 | MS&AD Insurance Group Holding…10b5-110% Owner | $46.90M | 698,000 | $67.19 | +1% | Jan 22 | SEC |
| Jan 21 | MS&AD Insurance Group Holding…10b5-110% Owner | $42.61M | 630,000 | $67.64 | +1% | Jan 20 | SEC |
| Jan 16 | MS&AD Insurance Group Holding…10b5-110% Owner | $36.65M | 535,000 | $68.50 | +1% | Jan 15 | SEC |
| Jan 14 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $55.62M | 811,041 | $68.58 | +2% | Jan 12 | SEC |
| Jan 9 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $32.64M | 470,000 | $69.45 | +1% | Jan 8 | SEC |
| Jan 7 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $47.42M | 681,218 | $69.61 | +1% | Jan 5 | SEC |
| Jan 2 | MS&AD Insurance Group Holding…10b5-110% Owner | $47.17M | 672,734 | $70.12 | +1% | Dec 30 | SEC |
| Dec 29 | Mitsui Sumitomo Insurance Co…10b5-110% Owner | $62.04M | 879,573 | $70.53 | +2% | Dec 23 | SEC |
| Dec 22 | MS&AD Insurance Group Holding…10b5-110% Owner | $42.55M | 610,350 | $69.71 | +1% | Dec 18 | SEC |