| SC 13G/A | 2014-02-14 | FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | USG CORP | 1,694,554 | 1.2% | EDGAR |
| SC 13G | 2014-02-13 | PRICE T ROWE ASSOCIATES INC /MD/ | USG CORP | 6,065,950 | 5.5% | EDGAR |
| SC 13D/A | 2014-01-02 | BERKSHIRE HATHAWAY INC | USG CORP | 43,387,982 | 30.5% | EDGAR |
| SC 13G/A | 2013-08-09 | BlackRock Inc. | USG CORP | 5,304,903 | 4.9% | EDGAR |
| SC 13G/A | 2013-02-14 | FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | USG CORP | 8,814,730 | 7.6% | EDGAR |
| SC 13G | 2013-01-30 | BlackRock Inc. | USG CORP | 6,288,986 | 5.9% | EDGAR |
| SC 13G/A | 2011-02-15 | FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | USG CORP | 15,565,930 | 15.1% | EDGAR |
| SC 13G/A | 2010-02-12 | FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | USG CORP | 16,083,430 | 16.2% | EDGAR |
| SC 13D/A | 2009-12-18 | GEBR. KNAUF VERWALTUNGSGESELLSCHAFT KG | USG CORP | 14,757,258 | 14.9% | EDGAR |
| SC 13G/A | 2009-02-17 | JANUS CAPITAL MANAGEMENT LLC | USG CORP | 1,727,835 | 1.7% | EDGAR |
| SC 13G/A | 2009-02-17 | FAIRHOLME CAPITAL MANAGEMENT LLC | USG CORP | 1,300 | 0.0% | EDGAR |
| SC 13G | 2009-02-17 | FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | USG CORP | 15,883,430 | 14.7% | EDGAR |
| SC 13D/A | 2009-02-11 | BERKSHIRE HATHAWAY INC | USG CORP | 43,387,981 | 34.6% | EDGAR |
| SC 13G | 2008-09-10 | THIRD AVENUE MANAGEMENT LLC | USG CORP | 4,312,034 | 4.4% | EDGAR |
| SC 13G/A | 2008-02-14 | D. E. SHAW LAMINAR PORTFOLIOS, L.L.C. | USG CORP | 3,238,981 | 3.3% | EDGAR |
| SC 13G | 2008-02-14 | JANUS CAPITAL MANAGEMENT LLC | USG CORP | 5,698,016 | 5.8% | EDGAR |
| SC 13G | 2008-02-14 | THIRD AVENUE MANAGEMENT LLC | USG CORP | 5,573,058 | 5.7% | EDGAR |
| SC 13G | 2008-02-13 | FAIRHOLME CAPITAL MANAGEMENT LLC | USG CORP | 6,613,036 | 6.7% | EDGAR |
| SC 13G/A | 2008-02-11 | ARIEL CAPITAL MANAGEMENT LLC | USG CORP | - | - | EDGAR |
| SC 13G/A | 2008-02-11 | ARIEL CAPITAL MANAGEMENT LLC | USG CORP | - | - | EDGAR |