Insider · CIK 0001318960
David Allen Tanner
Files at WTM (WHITE MOUNTAINS INSURANCE GROUP LTD). First filing -, latest -.
In brief
David Allen Tanner files SEC Form 4 as director at WTM (WHITE MOUNTAINS INSURANCE GROUP LTD). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; David Allen Tanner has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 6 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 31, 2026 | WTM WHITE MOUNTAINS INSURANCE GROUP LTD | GGift Common Shares | -2 | $0.00 | $0 | 2,012 | Aug 31, 2026 |
| May 21, 2026 | WTM WHITE MOUNTAINS INSURANCE GROUP LTD | AGrant or award Common Shares | +135 | $0.00 | $0 | 2,014 | May 22, 2026 |
| Mar 4, 2026 | WTM WHITE MOUNTAINS INSURANCE GROUP LTD | GGift Common Shares | -225 | $0.00 | $0 | 1,879 | Mar 5, 2026 |
| Nov 10, 2025 | WTM WHITE MOUNTAINS INSURANCE GROUP LTD | GGift Common Shares | -4 | $0.00 | $0 | 2,104 | Nov 10, 2025 |
| May 22, 2025 | WTM WHITE MOUNTAINS INSURANCE GROUP LTD | AGrant or award Common Shares | +150 | $0.00 | $0 | 2,108 | May 23, 2025 |
| May 23, 2024 | WTM WHITE MOUNTAINS INSURANCE GROUP LTD | AGrant or award Common Shares | +165 | $0.00 | $0 | 1,958 | May 24, 2024 |
Questions about David Allen Tanner
Answered from the filings on this page, as of the latest one.
Is David Allen Tanner buying or selling?
David Allen Tanner has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did David Allen Tanner's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and David Allen Tanner has 0.
Where does David Allen Tanner file Form 4?
David Allen Tanner has filed Form 4 at WTM (WHITE MOUNTAINS INSURANCE GROUP LTD). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.