WRB
W. R. Berkley Corporation
W. R. Berkley Corporation insider trading
Every time one of WRB's executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.
SEC Form 4 data, Q3 2024 to Q2 2026
WRB insider trading by quarter
Between Jul 01, 2024 and Jun 30, 2026, 2 insiders traded WRB on the open market: 94 purchases worth $705.5M and 0 sales. In the last four quarters alone: 94 purchases ($705.5M) and 0 sales, by 2 insiders.
| Quarter | Bought | Sold | Insiders |
|---|---|---|---|
| Q2 2026 | — | — | |
| Q1 2026 | +$570.2M83 buys | — | |
| Q4 2025 | +$135.3M11 buys | — | |
| Q3 2025 | — | — | |
| Q2 2025 | — | — | |
| Q1 2025 | — | — | |
| Q4 2024 | — | — | |
| Q3 2024 | — | — |
- Largest purchase
- +$22.3M of WRB by MS&AD Insurance Group Holdings, Inc. (10% Owner) on Jan 22, 2026, under a 10b5-1 plan.
Open-market transactions through Jun 30, 2026most recent first
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$5.3M
Mar 03, 2026
73,185 sh · $72.52
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$2.8M
Mar 03, 2026
38,991 sh · $71.60
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$7.4M
Mar 02, 2026
100,897 sh · $73.20
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$3.3M
Mar 02, 2026
45,103 sh · $72.29
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$10.5M
Feb 27, 2026
147,000 sh · $71.63
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$10.4M
Feb 26, 2026
145,491 sh · $71.65
Mitsui Sumitomo Insurance Co Ltd10b5-1
10% Owner
+$541.5K
Feb 26, 2026
7,509 sh · $72.11
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$11M
Feb 25, 2026
154,512 sh · $71.39
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$1M
Feb 25, 2026
14,356 sh · $71.77
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$7.3M
Feb 24, 2026
103,192 sh · $70.52
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$4.4M
Feb 24, 2026
61,594 sh · $71.28
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$14.5M
Feb 23, 2026
203,590 sh · $71.09
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$1.2M
Feb 23, 2026
16,410 sh · $71.80
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$11.4M
Feb 20, 2026
160,582 sh · $70.80
MS&AD Insurance Group Holdings, Inc.10b5-1
10% Owner
+$21.2M
Feb 19, 2026
300,986 sh · $70.53
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Mar 03, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 73,185 | $72.52 | +$5.3M |
| Mar 03, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 38,991 | $71.60 | +$2.8M |
| Mar 02, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 100,897 | $73.20 | +$7.4M |
| Mar 02, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 45,103 | $72.29 | +$3.3M |
| Feb 27, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 147,000 | $71.63 | +$10.5M |
| Feb 26, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 145,491 | $71.65 | +$10.4M |
| Feb 26, 2026 | Mitsui Sumitomo Insurance Co Ltd10b5-110% Owner | 7,509 | $72.11 | +$541.5K |
| Feb 25, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 154,512 | $71.39 | +$11M |
| Feb 25, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 14,356 | $71.77 | +$1M |
| Feb 24, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 103,192 | $70.52 | +$7.3M |
| Feb 24, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 61,594 | $71.28 | +$4.4M |
| Feb 23, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 203,590 | $71.09 | +$14.5M |
| Feb 23, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 16,410 | $71.80 | +$1.2M |
| Feb 20, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 160,582 | $70.80 | +$11.4M |
| Feb 19, 2026 | MS&AD Insurance Group Holdings, Inc.10b5-110% Owner | 300,986 | $70.53 | +$21.2M |
From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.
After insiders bought WRB
What the stock actually did in the 90 days following each open-market purchase
Don't check WRB — let it ping you
Get told the moment an insider moves on WRB
Pro watches W. R. Berkley Corporation for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add WRB to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.
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How to read WRB insider activity
- Open-market purchase (code P)
- An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
- Grants and option exercises (codes A, M)
- Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
- Cluster buy
- Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.
Other Financials tickers
Questions
- How much WRB stock have insiders bought and sold in the last two years?
- Between Jul 01, 2024 and Jun 30, 2026, 2 W. R. Berkley Corporation insiders made 94 open-market purchases worth $705.5M and no sales. In the four quarters to Jun 30, 2026: 94 purchases ($705.5M) and no sales. The largest purchase was MS&AD Insurance Group Holdings, Inc. buying $22.3M on Jan 22, 2026.
- Where does WRB insider trading data come from?
- From the Form 4 filings W. R. Berkley Corporation's officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.
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