WILLIAM R BERKLEY
CIK 918186 · Executive Chairman · last filed 2026-06-04
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$1.14B
Companies
9
Total Filings
56
Lifetime Open-Market Net
-$9.88M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| WRBpH | Executive Chairman | 18,716,375 | $15.39 | $288.05M | $0 | 12 | 2026-06-04 |
| WRBpF | Executive Chairman | 8,009,812 | $19.16 | $153.47M | $0 | 3 | 2020-08-19 |
| WRBpE | Executive Chairman | 7,915,491 | $21.49 | $170.14M | $0 | 4 | 2019-08-07 |
| BERKLEY W R CORP (WRBpD) Delisted | Executive Chairman | 24,680,170 | $25.33 | $625.15M | $0 | 2 | 2017-08-09 |
| BERKLEY W R CORP (WRBpC) Delisted | Executive Chairman | 4,875,143 | — | — | $0 | 1 | 2016-05-26 |
| BERKLEY W R CORP (WRBpB) Delisted | Executive Chairman | 24,683,897 | — | — | $0 | 5 | 2016-01-14 |
| WRB | Chairman and CEO | 7,775,645 | $68.27 | $530.84M | $0 | 17 | 2013-01-15 |
| FIRST MARBLEHEAD CORP (FMD) Delisted | Director | 4,277,525 | — | — | -$9.88M | 10 | 2011-09-22 |
| BERKLEY W R CORP (BER) Delisted | Chairman and CEO | 13,764,948 | — | — | $0 | 2 | 2007-05-09 |
Recent Filings · Page 6 of 6
56 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2007-03-02 | BERKLEY W R CORP (BER) Delisted | Exer (M) | +1,000,000 | $6.70M | EDGAR |
| 2007-02-12 | FIRST MARBLEHEAD CORP (FMD) Delisted | Mixed | −86,824 | -$1.71M | EDGAR |
| 2007-02-02 | FIRST MARBLEHEAD CORP (FMD) Delisted | Sell (S) | −20,200 | -$1.10M | EDGAR |
| 2007-02-02 | FIRST MARBLEHEAD CORP (FMD) Delisted | Sell (S) | −39,800 | -$2.16M | EDGAR |
| 2007-02-01 | FIRST MARBLEHEAD CORP (FMD) Delisted | Sell (S) | −89,900 | -$4.90M | EDGAR |
| 2007-02-01 | FIRST MARBLEHEAD CORP (FMD) Delisted | Mixed | −22,100 | -$5.5K | EDGAR |
Showing 51–56 of 56
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Page 6 of 6
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.