Mark L Shapiro
CIK 1235090 · View on SEC EDGAR ↗
First SEC filing: June 16, 2021 · Latest: June 16, 2021
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Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 12, 2024 | WRB | A | 2,534 | — | — | 2,534 Direct | — | Acquired | (price as of 2026-08-20) |
| June 14, 2023 | WRB | A | 3,479 | — | — | 3,479 Direct | — | Acquired | (price as of 2026-08-20) |
| June 15, 2022 | WRB | A | 2,995 | — | — | 2,995 Direct | — | Acquired | (price as of 2026-08-20) |
| Dec. 1, 2021 | WRB | M | 5,768 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Dec. 1, 2021 | WRB | D | 5,768 | $77.73 | $448,347 | 0 Direct | -100.00% | Disposed | 101.5% (price as of 2026-08-20) |
| Dec. 1, 2021 | WRB | M | 5,768 | — | — | 5,768 Direct | — | Acquired | (price as of 2026-08-20) |
| June 15, 2021 | WRB | A | 2,652 | — | — | 2,652 Direct | — | Acquired | (price as of 2026-08-20) |
| June 12, 2020 | WRB | A | 3,483 | — | — | 3,483 Direct | — | Acquired | (price as of 2026-08-20) |
| June 6, 2019 | WRB | A | 3,151 | — | — | 3,151 Direct | — | Acquired | (price as of 2026-08-20) |
| May 31, 2018 | WRB | A | 2,619 | — | — | 2,619 Direct | — | Acquired | (price as of 2026-08-20) |
| May 16, 2017 | WRB | A | 3,000 | — | — | 3,000 Direct | — | Acquired | (price as of 2026-08-20) |
| May 25, 2016 | WRB | A | 3,000 | — | — | 18,000 Direct | +20.00% | Acquired | (price as of 2026-08-20) |
| June 2, 2015 | WRB | A | 3,000 | — | — | 15,000 Direct | +25.00% | Acquired | (price as of 2026-08-20) |
| May 20, 2014 | WRB | A | 3,000 | — | — | 12,000 Direct | +33.33% | Acquired | (price as of 2026-08-20) |
| May 21, 2013 | WRB | A | 3,000 | — | — | 9,000 Direct | +50.00% | Acquired | (price as of 2026-08-20) |
| May 22, 2012 | WRB | A | 3,000 | — | — | 6,000 Direct | +100.00% | Acquired | (price as of 2026-08-20) |
| May 18, 2010 | WRB | A | 3,000 | — | — | 8,500 Direct | +54.55% | Acquired | (price as of 2026-08-20) |
| May 19, 2009 | WRB | A | 2,000 | — | — | 5,500 Direct | +57.14% | Acquired | (price as of 2026-08-20) |
| Jan. 13, 2009 | WRB | I | 3,845 | $26.61 | $102,315 | 3,845 Direct | — | Acquired | 783.1% (price as of 2026-08-20) |
| May 28, 2008 | WRB | A | 2,000 | — | — | 3,500 Direct | +133.33% | Acquired | (price as of 2026-08-20) |
| May 8, 2007 | WRB | A | 1,500 | — | — | 23,833 Direct | +6.72% | Acquired | (price as of 2026-08-20) |
| May 16, 2006 | WRB | A | 1,500 | — | — | 22,333 Direct | +7.20% | Acquired | (price as of 2026-08-20) |
| May 10, 2005 | WRB | A | 1,000 | — | — | 13,889 Direct | +7.76% | Acquired | (price as of 2026-08-20) |
| May 11, 2004 | WRB | A | 189 | — | — | 8,593 Direct | +2.25% | Acquired | (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 1, 2021 | WRB | Phantom Stock | Common Stock (5,768) | — | Dec. 1, 2021 | 5,768 | Disposed |
| Jan. 13, 2009 | WRB | Phantom Stock | Common Stock (3,845) | — | — | 3,845 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).