BERKLEY W R CORP (WRB)

Latest Insider Confidence Score

2026Q1

53.2
Bullish

Company insider confidence (by quarter)

2010Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
MITSUI SUMITOMO INSURANCE CO LTD 10% Owner 48,601,588 Dec 11, 2025
MS&AD Insurance Group Holdings, Inc. 10% Owner 48,601,588 Dec 11, 2025
Berkley Capital, LLC Other 6,004,661 Feb 12, 2018
Berkley Capital Investors, L.P. Other 6,004,661 Feb 12, 2018
Berkley W R Corp Other 6,004,661 Feb 12, 2018

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 2, 2026 Mar 3, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 72.5 +258,176 0.44% ✓ $18.7M
Feb 26, 2026 Feb 27, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 80.0 +300,000 0.52% ✓ $21.5M
Feb 23, 2026 Feb 25, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 80.0 +553,654 0.96% ✓ $39.4M
Feb 19, 2026 Feb 20, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 80.0 +505,582 0.88% ✓ $35.7M
Feb 17, 2026 Feb 18, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +566,386 1.00% ✓ $40.2M
Feb 12, 2026 Feb 13, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 65.0 +40,000 0.07% ✓ $2.8M
Feb 9, 2026 Feb 11, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 66.3 +97,996 0.17% ✓ $6.8M
Feb 5, 2026 Feb 6, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 65.0 +40,000 0.07% ✓ $2.8M
Feb 2, 2026 Feb 4, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 80.0 +315,221 0.56% ✓ $21.5M
Jan 29, 2026 Jan 30, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 80.0 +485,000 0.87% ✓ $33.1M
Jan 26, 2026 Jan 28, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +1,028,931 1.88% ✓ $69.3M
Jan 22, 2026 Jan 23, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +698,000 1.30% ✓ $46.9M
Jan 20, 2026 Jan 21, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +630,000 1.18% ✓ $42.6M
Jan 15, 2026 Jan 16, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +535,000 1.01% ✓ $36.6M
Jan 12, 2026 Jan 14, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +811,041 1.56% ✓ $55.6M
Jan 8, 2026 Jan 9, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 80.0 +470,000 0.91% ✓ $32.6M
Jan 5, 2026 Jan 7, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +681,218 1.34% ✓ $47.4M
Dec 30, 2025 Jan 2, 2026 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +672,734 1.34% ✓ $47.2M
Dec 23, 2025 Dec 29, 2025 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +879,573 1.79% ✓ $62M
Dec 18, 2025 Dec 22, 2025 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Buy 90.0 +610,350 1.26% ✓ $42.5M
Dec 18, 2025 Dec 19, 2025 SHIEL JAMES G EVP - Investments Neutral 52.5 -1,250 -0.12% ✗ -
Dec 11, 2025 MITSUI SUMITOMO INSURANCE CO LTD 10% Owner Neutral 52.5 - 0.00% ✗ -
Aug 15, 2025 Aug 19, 2025 SHIEL JAMES G EVP - Investments Sell 82.5 +15,382 1.55% ✗ $53K
Aug 15, 2025 Aug 19, 2025 Sgaglione Lucille T EVP Sell 90.0 +15,409 6.57% ✗ $51.1K
Aug 15, 2025 Aug 19, 2025 Welt Philip S EVP & Secretary Sell 86.3 +15,448 7.38% ✗ $48.3K
Aug 15, 2025 Aug 19, 2025 Baio Richard Mark CFO Sell 90.0 +15,382 6.99% ✗ $53K
Aug 15, 2025 Aug 19, 2025 BERKLEY WILLIAM R JR CEO Sell 62.5 +107,173 0.15% ✗ $334.5K
Aug 15, 2025 Aug 19, 2025 BERKLEY WILLIAM R Chair Sell 62.5 +107,592 0.13% ✗ $304.7K
Jun 11, 2025 Jun 13, 2025 BERKLEY WILLIAM R Chair Neutral 47.5 +2,776 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 Mosley Daniel Lynn Director Neutral 90.0 +2,776 30.78% ✗ -
Jun 11, 2025 Jun 13, 2025 Mattson Marie Angela Director Neutral 90.0 +2,776 73.03% ✗ -
Jun 11, 2025 Jun 13, 2025 Ferre Maria Luisa Director Neutral 85.0 +2,776 5.20% ✗ -
Jun 11, 2025 Jun 13, 2025 Talisman Jonathan Director Neutral 85.0 +2,776 9.85% ✗ -
Jun 11, 2025 Jun 13, 2025 Farrell Mary C Director Neutral 77.5 +2,776 1.79% ✗ -
Jun 11, 2025 Jun 13, 2025 BERKLEY WILLIAM R JR CEO Neutral 47.5 +2,776 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 BLAYLOCK RONALD E Director Neutral 77.5 +2,776 1.95% ✗ -
Jun 11, 2025 Jun 13, 2025 Augostini Christopher L Director Neutral 82.5 +2,776 2.67% ✗ -
Jun 11, 2025 Jun 13, 2025 Rusbuldt Robert Alan Director Neutral 90.0 +2,776 100.00% ✗ -
Jun 13, 2025 Rusbuldt Robert Alan Director Neutral 52.5 - 0.00% ✗ -
Jan 8, 2025 Jan 10, 2025 SHIEL JAMES G EVP - Investments Neutral 27.5 -208,000 -17.35% ✗ -
Dec 26, 2024 Dec 27, 2024 SHIEL JAMES G EVP - Investments Neutral 52.5 -1,500 -0.15% ✗ -
Aug 15, 2024 Aug 19, 2024 SHIEL JAMES G EVP - Investments Sell 78.8 +16,667 1.71% ✗ $46.5K
Aug 15, 2024 Aug 19, 2024 Sgaglione Lucille T EVP Sell 86.3 +16,697 7.68% ✗ $44.8K
Aug 15, 2024 Aug 19, 2024 Baio Richard Mark CFO Sell 86.3 +16,667 8.21% ✗ $46.5K
Aug 15, 2024 Aug 19, 2024 Welt Philip S EVP & Secretary Sell 86.3 +16,738 8.72% ✗ $42.4K
Aug 15, 2024 Aug 19, 2024 BERKLEY WILLIAM R JR CEO Sell 85.0 +115,375 2.03% ✗ $291.9K
Aug 15, 2024 Aug 19, 2024 BERKLEY WILLIAM R Chair Sell 62.5 +115,826 0.14% ✗ $265.9K
Jun 12, 2024 Jun 12, 2024 BERKLEY WILLIAM R Chair Neutral 47.5 +2,534 0.00% ✗ -
Jun 12, 2024 Jun 12, 2024 Ferre Maria Luisa Director Neutral 85.0 +2,534 7.67% ✗ -
Jun 12, 2024 Jun 12, 2024 Farrell Mary C Director Neutral 82.5 +2,534 2.51% ✗ -
Jun 12, 2024 Jun 12, 2024 Augostini Christopher L Director Neutral 82.5 +2,534 3.79% ✗ -
Jun 12, 2024 Jun 12, 2024 Mosley Daniel Lynn Director Neutral 90.0 +2,534 72.84% ✗ -
Jun 12, 2024 Jun 12, 2024 BLAYLOCK RONALD E Director Neutral 82.5 +2,534 2.75% ✗ -
Jun 12, 2024 Jun 12, 2024 SHAPIRO MARK L Director Neutral 77.5 +2,534 1.77% ✗ -
Jun 12, 2024 Jun 12, 2024 Talisman Jonathan Director Neutral 90.0 +2,534 15.60% ✗ -
Jun 12, 2024 Jun 12, 2024 Mattson Marie Angela Director Neutral 90.0 +2,534 100.00% ✗ -
Jun 12, 2024 Jun 12, 2024 BERKLEY WILLIAM R JR CEO Neutral 55.0 +2,534 0.07% ✗ -
Jun 12, 2024 Mattson Marie Angela Director Neutral 52.5 - 0.00% ✗ -
Aug 15, 2023 Aug 17, 2023 Sgaglione Lucille T EVP Sell 86.3 +12,492 9.44% ✗ $37.4K
Aug 15, 2023 Aug 17, 2023 SHIEL JAMES G EVP - Investments Sell 78.8 +12,483 1.96% ✗ $37.9K
Aug 15, 2023 Aug 17, 2023 Baio Richard Mark CFO Sell 86.3 +11,710 9.50% ✗ $35.6K
Aug 15, 2023 Aug 17, 2023 BERKLEY WILLIAM R Chair Sell 60.0 +86,090 0.15% ✗ $215.7K
Aug 15, 2023 Aug 17, 2023 BERKLEY WILLIAM R JR CEO Sell 82.5 +85,749 2.32% ✗ $237.3K
Aug 15, 2023 Aug 17, 2023 Welt Philip S EVP & Secretary Sell 86.3 +7,588 6.34% ✗ $22.9K
Jun 14, 2023 Jun 14, 2023 SHAPIRO MARK L Director Neutral 77.5 +3,479 2.49% ✗ -
Jun 14, 2023 Jun 14, 2023 Ferre Maria Luisa Director Neutral 90.0 +3,479 11.77% ✗ -
Jun 14, 2023 Jun 14, 2023 Farrell Mary C Director Neutral 82.5 +3,479 3.57% ✗ -
Jun 14, 2023 Jun 14, 2023 BLAYLOCK RONALD E Director Neutral 82.5 +3,479 3.92% ✗ -
Jun 14, 2023 Jun 14, 2023 Augostini Christopher L Director Neutral 85.0 +3,479 5.49% ✗ -
Jun 14, 2023 Jun 14, 2023 BERKLEY WILLIAM R JR CEO Neutral 55.0 +3,479 0.09% ✗ -
Jun 14, 2023 Jun 14, 2023 BERKLEY WILLIAM R Chair Neutral 47.5 +3,479 0.01% ✗ -
Jun 14, 2023 Jun 14, 2023 Talisman Jonathan Director Neutral 90.0 +3,479 27.25% ✗ -
Jun 14, 2023 Jun 14, 2023 Mosley Daniel Lynn Director Neutral 90.0 +3,479 100.00% ✗ -
Apr 21, 2023 Apr 25, 2023 Baio Richard Mark CFO Neutral 77.5 +1,750 1.44% ✗ -
Sep 29, 2022 Feb 9, 2023 Talisman Jonathan Director Buy 47.5 +6 0.05% ✗ $414.1
Jan 10, 2023 Mosley Daniel Lynn Director Neutral 52.5 - 0.00% ✗ -
Jul 5, 2022 Sep 14, 2022 Talisman Jonathan Director Buy 47.5 +6 0.05% ✗ $405.6
Mar 8, 2022 Sep 14, 2022 Farrell Mary C Director Buy 55.0 +133 0.14% ✗ $8.1K
Aug 15, 2022 Aug 17, 2022 SHIEL JAMES G EVP - Investments Sell 78.8 +13,859 2.22% ✗ $43.9K
Aug 15, 2022 Aug 17, 2022 Sgaglione Lucille T EVP Sell 91.3 +13,881 11.74% ✗ $42.4K
Aug 15, 2022 Aug 17, 2022 Welt Philip S EVP, GC & Secretary Sell 83.8 +3,269 2.82% ✗ $27.4K
Aug 15, 2022 Aug 17, 2022 Baio Richard Mark CFO Sell 91.3 +11,367 10.31% ✗ $36K
Aug 15, 2022 Aug 17, 2022 BERKLEY WILLIAM R Chair Sell 60.0 +95,582 0.17% ✗ $249.4K
Aug 15, 2022 Aug 17, 2022 BERKLEY WILLIAM R JR CEO Sell 90.0 +95,202 2.65% ✗ $274.4K
Jul 29, 2022 Aug 2, 2022 BROCKBANK MARK ELLWOOD Director Buy 92.5 +6,000 6.73% ✗ $371.8K
Jun 15, 2022 Jun 15, 2022 Talisman Jonathan Director Neutral 90.0 +2,995 30.69% ✗ -
Jun 15, 2022 Jun 15, 2022 SHAPIRO MARK L Director Neutral 77.5 +2,995 2.20% ✗ -
Jun 15, 2022 Jun 15, 2022 Ferre Maria Luisa Director Neutral 90.0 +2,995 11.27% ✗ -
Jun 15, 2022 Jun 15, 2022 Farrell Mary C Director Neutral 82.5 +2,995 3.18% ✗ -
Jun 15, 2022 Jun 15, 2022 BROCKBANK MARK ELLWOOD Director Neutral 60.0 +2,995 0.23% ✗ -
Jun 15, 2022 Jun 15, 2022 BLAYLOCK RONALD E Director Neutral 82.5 +2,995 3.49% ✗ -
Jun 15, 2022 Jun 15, 2022 Augostini Christopher L Director Neutral 82.5 +2,995 4.97% ✗ -
Jun 15, 2022 Jun 15, 2022 BERKLEY WILLIAM R JR CEO Neutral 55.0 +2,995 0.08% ✗ -
Jun 15, 2022 Jun 15, 2022 BERKLEY WILLIAM R Chair Neutral 47.5 +2,995 0.01% ✗ -
Dec 20, 2021 Feb 11, 2022 Talisman Jonathan Director Buy 55.0 +9 0.14% ✗ $705.6
Dec 23, 2021 Dec 23, 2021 BROCKBANK MARK ELLWOOD Director Sell 17.5 -25,000 -2.82% ✗ $2M
Dec 1, 2021 Dec 3, 2021 BROCKBANK MARK ELLWOOD Director Sell 17.5 -38,301 -4.15% ✗ $3M
Dec 1, 2021 Dec 3, 2021 Pusey Leigh Ann Director Sell 22.5 -2,547 -16.16% ✗ $198K
Dec 1, 2021 Dec 3, 2021 SHAPIRO MARK L Director Sell 20.0 -5,768 -5.96% ✗ $448.3K
Dec 1, 2021 Dec 3, 2021 Talisman Jonathan Director Sell 22.5 -681 -9.48% ✗ $52.9K