Buyback Radar
Company reports

White Mountains

WTM

White Mountains has retired 78.0% of its shares since 2006, from 10,833,788 to 2,386,721.

The 2006 peak comes after conversion of the OneBeacon financing preferred in 2001. In 2000 the count was 5,880,115, so the retirement is measured from after that issuance.

78.0%retired since 2006
20.9%last 5 years
6.5%last 12 months
2.4Mshares today
Shares outstanding, 1999 to todaysplit adjusted, from SEC filings
a quarter gone 2009half gone 2015three quarters gone 202111M shares, 20062.4M200020052010201520202025
1999, 5,904,5342026-08-03, 2,386,721
A share bought in 1999
2.5× more of White Mountains today, without buying another share. It was one of 5,904,534 shares then. It is one of 2,386,721 now.
Every filing we read27 fiscal years, split adjusted
Fiscal yearDateShares outstandingFiling
19992000-03-245,904,53410-Kcover page
20002001-03-235,880,11510-Kcover page
20012002-03-318,284,18110-Kcover page, review share change, capital issuance
20022003-03-248,357,08710-Kcover page
20032004-02-279,001,79510-Kcover page
20042005-03-0110,774,58910-Kcover page
20052006-03-0310,780,05310-Kcover page
20062007-02-2810,833,78810-Kcover page
20072008-02-2810,547,33410-Kcover page
20082009-02-278,854,16310-Kcover page
20092009-12-318,860,15010-K
20102011-02-248,025,20010-K
20112012-02-297,454,58510-K
20122013-02-286,316,21010-K
20132014-02-286,179,98610-K
20142015-02-275,991,54910-K
20152016-02-255,553,40710-K
20162017-02-244,561,05710-K
20172018-02-263,742,40810-K
20182019-02-253,167,43610-K
20192020-02-283,193,50910-K/A
20202021-02-243,095,82910-K/A
20212022-02-233,000,84910-K
20222023-02-212,567,52710-K
20232024-02-212,555,18310-K
20242025-02-242,563,05110-K
20252026-02-232,467,05510-K

Source: all 10-K filings of White Mountains on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.

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White Mountains buybacks, answered

Is White Mountains buying back its stock?

Yes. White Mountains has 6.5% fewer shares outstanding than twelve months ago, 2,386,721 as of August 3, 2026. Over five years the share count is down 20.9%.

How many shares has White Mountains bought back?

Net of every new share it issued, White Mountains has 8.4 million fewer shares than at its 2006 peak. That is 78.0% of the company.

How many shares does White Mountains have outstanding?

2,386,721 shares, as of August 3, 2026, from the cover page of its latest 10-Q. At the 2006 peak it had 10,833,788.

What do White Mountains' buybacks mean for a shareholder?

Each share is a bigger slice of the company. Someone who held White Mountains stock in 2006 owns 4.5 times as much of the business today without buying another share. Whether that was a good use of cash depends on the price paid.

How does White Mountains compare with other cannibal stocks?

White Mountains ranks No. 3 of 65 companies on Buyback Radar by share of the company retired since its peak. Close to it on the list: AutoZone (88.2%), Dillard's (85.4%), Globe Life (73.7%), AIG (72.4%).

Every answer is computed from White Mountains' own SEC filings and rebuilt every Monday. Latest count: 10-Q on EDGAR.

Insider buying, last 12 months

No open-market purchases reported in the last 12 months.

The story

The numbers say what happened. The story says whether it can continue. We cover companies like White Mountains in depth on Cannibal Stocks.

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