SC 13G | 2018-01-25 | TIAA, FSB | VANGUARD BOND INDEX FUNDS | 1,853,997,199 | 6.1% | EDGAR |
SC 13G/A | 2017-02-14 | QS Investors, LLC | VANGUARD BOND INDEX FUNDS | 14,909,539 | 3.8% | EDGAR |
SC 13G | 2017-01-30 | TIAA CREF TRUST CO FSB/MO | VANGUARD BOND INDEX FUNDS | 1,378,481,173 | 5.6% | EDGAR |
SC 13G/A | 2016-02-16 | QS Investors, LLC | VANGUARD BOND INDEX FUNDS | 961,279 | 4.9% | EDGAR |
SC 13G | 2016-02-16 | QS Investors, LLC | VANGUARD BOND INDEX FUNDS | 16,916,650 | 5.0% | EDGAR |
SC 13G | 2016-01-27 | TIAA CREF TRUST CO FSB/MO | VANGUARD BOND INDEX FUNDS | 1,150,670,090 | 5.2% | EDGAR |
SC 13G/A | 2015-11-10 | QS Investors, LLC | VANGUARD BOND INDEX FUNDS | 1,156,907 | 5.7% | EDGAR |
SC 13G | 2015-06-10 | QS Investors, LLC | VANGUARD BOND INDEX FUNDS | 1,509,837 | 11.2% | EDGAR |
SC 13G | 2012-02-14 | Windhaven Investment Management, Inc. | VANGUARD BOND INDEX FUNDS | 10,064,824 | 5.7% | EDGAR |
SC 13G/A | 2011-01-20 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 1,419,293 | 6.1% | EDGAR |
SC 13G/A | 2010-01-26 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 4,652,033 | 10.2% | EDGAR |
SC 13G/A | 2010-01-26 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 1,356,974 | 8.7% | EDGAR |
SC 13G/A | 2009-12-10 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 3,907,460 | 10.4% | EDGAR |
SC 13G | 2009-12-10 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 1,571,577 | 38.3% | EDGAR |
SC 13G/A | 2009-02-19 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 1,374,400 | 9.5% | EDGAR |
SC 13G/A | 2009-02-17 | Bank of New York Mellon CORP | VANGUARD BOND INDEX FUNDS | 869,065 | 2.3% | EDGAR |
SC 13G | 2009-01-22 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 1,374,400 | 9.4% | EDGAR |
SC 13G | 2009-01-12 | WELLS FARGO & CO/MN | VANGUARD BOND INDEX FUNDS | 795,743 | 10.1% | EDGAR |
SC 13G/A | 2008-10-08 | Bank of New York Mellon CORP | VANGUARD BOND INDEX FUNDS | 1,147,118 | 8.1% | EDGAR |
SC 13G | 2007-12-10 | Bank of New York Mellon CORP | VANGUARD BOND INDEX FUNDS | 1,120,675 | 11.6% | EDGAR |