SC 13G | 2007-10-05 | DAVIS SELECTED ADVISERS | AMBAC FINANCIAL GROUP INC | 6,506,767 | 6.4% | EDGAR |
SC 13G/A | 2007-02-14 | FMR CORP | AMBAC FINANCIAL GROUP INC | 2,906,032 | 2.7% | EDGAR |
SC 13G/A | 2007-02-14 | WELLINGTON MANAGEMENT CO LLP | AMBAC FINANCIAL GROUP INC | 3,043,099 | 2.9% | EDGAR |
SC 13G | 2007-02-07 | GOLDMAN SACHS ASSET MANAGEMENT LP | AMBAC FINANCIAL GROUP INC | 8,238,671 | 7.8% | EDGAR |
SC 13G/A | 2007-02-02 | J P MORGAN CHASE & CO | AMBAC FINANCIAL GROUP INC | 5,778,739 | 5.4% | EDGAR |
SC 13G/A | 2006-10-10 | FMR CORP | AMBAC FINANCIAL GROUP INC | 6,304,029 | 6.0% | EDGAR |
SC 13G/A | 2006-02-14 | FMR CORP | AMBAC FINANCIAL GROUP INC | 13,185,962 | 12.5% | EDGAR |
SC 13G/A | 2006-02-14 | WELLINGTON MANAGEMENT CO LLP | AMBAC FINANCIAL GROUP INC | 5,667,419 | 5.4% | EDGAR |
SC 13G | 2006-02-14 | OPPENHEIMER CAPITAL | AMBAC FINANCIAL GROUP INC | 5,768,564 | 5.5% | EDGAR |
SC 13G/A | 2006-02-08 | J P MORGAN CHASE & CO | AMBAC FINANCIAL GROUP INC | 7,672,667 | 7.2% | EDGAR |
SC 13G/A | 2005-02-28 | J P MORGAN CHASE & CO | AMBAC FINANCIAL GROUP INC | 11,006,559 | 10.1% | EDGAR |
SC 13G/A | 2005-02-14 | FMR CORP | AMBAC FINANCIAL GROUP INC | 9,872,689 | 9.1% | EDGAR |
SC 13G/A | 2005-02-14 | WELLINGTON MANAGEMENT CO LLP | AMBAC FINANCIAL GROUP INC | 6,710,803 | 6.2% | EDGAR |
SC 13G/A | 2005-02-11 | CITIGROUP INC | AMBAC FINANCIAL GROUP INC | 4,912,426 | 4.5% | EDGAR |
SC 13G/A | 2005-02-10 | FMR CORP | AMBAC FINANCIAL GROUP INC | 11,017,071 | 10.1% | EDGAR |
SC 13G | 2004-02-17 | FMR CORP | AMBAC FINANCIAL GROUP INC | 6,559,108 | 6.1% | EDGAR |
SC 13G/A | 2004-02-12 | J P MORGAN CHASE & CO | AMBAC FINANCIAL GROUP INC | 10,260,026 | 9.6% | EDGAR |
SC 13G/A | 2004-02-12 | WELLINGTON MANAGEMENT CO LLP | AMBAC FINANCIAL GROUP INC | 8,581,334 | 8.0% | EDGAR |
SC 13G/A | 2004-02-11 | GOLDMAN SACHS ASSET MANAGEMENT LP | AMBAC FINANCIAL GROUP INC | 3,515,033 | 3.3% | EDGAR |
SC 13G/A | 2004-01-29 | CITIGROUP INC | AMBAC FINANCIAL GROUP INC | 5,846,824 | 5.5% | EDGAR |