Berkley W R WRB-PH Insider Ownership

NYSE WRB-PH
$15.32 +0.10 (+0.68%)
As of: Sep 8, 2026 · 3:22 PM EDT

Insider Holdings by Owner

82.51Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
—
share count not reported for this filer set
Shares Held by Insiders
82.54Mn
filed for Sep 2026
▲+0.03% QoQ
Shares Outstanding
—
not reported
Direct Holdings
82.54Mn
Indirect: 6.56K
Net Shares Traded (QoQ)
+26.93K
net buying in Sep 2026
Insiders Holding Shares
16
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —
Form 4 Holdings

Insiders Holding WRB-PH

Insiders 16
Shares held 82.51Mn
Of outstanding —
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Sumitomo Insurance Co Ltd Mitsui TenPercentOwner 58,780,450 0 58,780,450 71.2% 03 Mar, 2026
2 William R Berkley Executive Chairman 17,366,375 0 17,366,375 21.0% 04 Jun, 2026
3 William R Jr Berkley Chairman, President And Ceo 4,650,314 0 4,650,314 5.6% 05 Aug, 2026
4 James G Shiel Evp Investments 810,633 0 810,633 1.0% 05 Aug, 2026
5 Lucille T Sgaglione Evp 241,036 0 241,036 0.3% 19 Aug, 2025
6 Richard Mark Baio Evp Cfo 227,611 0 227,611 0.3% 05 Aug, 2026
7 Philip S Welt Evp Secretary 214,033 0 214,033 0.3% 05 Aug, 2026
8 Christopher L Augostini Director 109,859 0 109,859 0.1% 04 Jun, 2026
9 Jonathan Talisman Director 33,180 0 33,180 0.0% 04 Jun, 2026
10 Mary C Farrell Director 19,378 0 19,378 0.0% 04 Jun, 2026
11 Daniel Lynn Mosley Director 14,885 0 14,885 0.0% 04 Jun, 2026
12 Leigh Ann Pusey Director 13,214 0 13,214 0.0% 03 Dec, 2021
13 Marie Angela Mattson Director 9,667 0 9,667 0.0% 04 Jun, 2026
14 Mark Ellwood Brockbank Director 0 6,000 6,000 0.0% 02 Aug, 2022
15 Robert Alan Rusbuldt Director 5,866 0 5,866 0.0% 04 Jun, 2026
16 Mark L Shapiro Director 2,534 0 2,534 0.0% 12 Jun, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

3,941 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
03 Aug, 2026 Richard Mark Baio Evp Cfo Acquired A 14,086 $0.00 $0 228,261 Direct
03 Aug, 2026 Philip S Welt Evp Secretary Acquired A 14,086 $0.00 $0 214,625 Direct
03 Aug, 2026 James G Shiel Evp Investments Acquired A 14,086 $0.00 $0 811,283 Direct
03 Aug, 2026 Philip S Welt Evp Secretary Acquired A 14,086 $0.00 $0 214,625 Direct
03 Aug, 2026 William R Jr Berkley Chairman, President And Ceo Acquired A 98,593 $0.00 $0 4,654,453 Direct
03 Aug, 2026 James G Shiel Evp Investments Acquired A 14,086 $0.00 $0 811,283 Direct
03 Aug, 2026 Philip S Welt Evp Secretary Disposed F 592 $72.29 $42.79K 214,033 Direct
03 Aug, 2026 William R Jr Berkley Chairman, President And Ceo Disposed F 4,139 $72.29 $299.20K 4,650,314 Direct
03 Aug, 2026 Richard Mark Baio Evp Cfo Disposed F 650 $72.29 $46.99K 227,611 Direct
03 Aug, 2026 James G Shiel Evp Investments Disposed F 650 $72.29 $46.99K 810,633 Direct
03 Aug, 2026 James G Shiel Evp Investments Disposed F 650 $72.29 $46.99K 810,633 Direct
03 Aug, 2026 Philip S Welt Evp Secretary Disposed F 592 $72.29 $42.79K 214,033 Direct
03 Jun, 2026 Mary C Farrell Director Acquired A 3,090 $0.00 $0 19,378 Direct
03 Jun, 2026 Jonathan Talisman Director Acquired A 3,090 $0.00 $0 33,180 Direct
03 Jun, 2026 William R Jr Berkley President And Ceo Acquired A 3,090 $0.00 $0 4,555,860 Direct
03 Jun, 2026 Marie Angela Mattson Director Acquired A 3,090 $0.00 $0 9,667 Direct
03 Jun, 2026 Robert Alan Rusbuldt Director Acquired A 3,090 $0.00 $0 5,866 Direct
03 Jun, 2026 William R Berkley Executive Chairman Acquired A 3,090 $0.00 $0 17,366,375 Direct
03 Jun, 2026 Daniel Lynn Mosley Director Acquired A 3,090 $0.00 $0 14,885 Direct
03 Jun, 2026 Christopher L Augostini Director Acquired A 3,090 $0.00 $0 109,859 Direct