Filing Details

Accession Number:
0001327330-12-000006
Form Type:
5
Zero Holdings:
No
Publication Time:
2012-02-02 16:58:50
Reporting Period:
2011-12-31
Filing Date:
2012-02-02
Accepted Time:
2012-02-02 16:58:50
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1369817 Onebeacon Insurance Group Ltd. OB Fire, Marine & Casualty Insurance (6331) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1538601 Ltd Holdings Tree Lone C/O White Mountains Insurance Group Ltd.
80 South Main St.
Hanover NH 03755
No No Yes No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Class B Common Shares Disposition 2007-03-15 645,262 $25.85 64,327,289 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Class B Common Shares 72,400,000 Direct
Class B Common Shares 6,178,271 Indirect by Sirius International Holdings (NL) B.V.
Class B Common Shares 1,249,178 Indirect by Star Re Ltd.
Footnotes
  1. The Reporting Person is an indirect wholly-owned subsidiary of White Mountains Insurance Group, Ltd. ("WMIG"), a public company which also reports beneficial ownership of all the Class B Common Shares ("Class B Shares") referenced in this filing. The Reporting Person became the direct beneficial owner of 72,400,000 Class B Shares via a contribution from its direct parent on December 14, 2006 (the contributor was also an indirect wholly-owned subsidiary of WMIG). On March 15, 2007, 645,262 Class B Shares were sold by the Reporting Person to the Issuer's ESOP (as disclosed in this filing and in a Form 4 filed by WMIG on such date). The remaining 71,754,738 Class B Shares have been held directly by the Reporting Person, or by one or more of its wholly-owned subsidiaries, since that time.
  2. Reflects reduction in Class B Shares reported as held directly as a result of transfers from the Reporting Person to its indirect wholly-owned subsidiary, Sirius International Holdings (NL) B.V. ("SIH") on August 15, 2008 and July 1, 2011. Class B Shares were transferred from SIH to Star Re Ltd. ("Star Re") on December 6, 2011.
  3. Reflects Class B Shares transferred to SIH from the Reporting Person on August 15, 2008 and July 1, 2011, less 1,249,178 Class B Shares transferred by SIH to Star Re on December 6, 2011.
  4. Reflects Class B Shares transferred from SIH to Star Re on December 6, 2011.