| SC 13G/A | 2011-02-08 | BLAIR WILLIAM & CO/IL | K12 INC | 2,137,107 | 6.9% | EDGAR |
| SC 13D | 2011-02-04 | LEARNING GROUP LLC | K12 INC | 4,665,083 | 15.0% | EDGAR |
| SC 13G/A | 2010-07-12 | GILDER GAGNON HOWE & CO LLC | K12 INC | 926,362 | 3.0% | EDGAR |
| SC 13G/A | 2010-03-10 | WELLS FARGO & CO/MN | K12 INC | 1,500,723 | 5.0% | EDGAR |
| SC 13G/A | 2010-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | K12 INC | 2,119,430 | 7.1% | EDGAR |
| SC 13G/A | 2010-02-12 | LEARNING GROUP LLC | K12 INC | 4,665,083 | 15.5% | EDGAR |
| SC 13G/A | 2010-02-12 | MOLLUSK HOLDINGS LLC | K12 INC | 0 | 0.0% | EDGAR |
| SC 13G/A | 2010-02-11 | TCW GROUP INC | K12 INC | 1,077,891 | 3.7% | EDGAR |
| SC 13G | 2010-02-10 | GILDER GAGNON HOWE & CO LLC | K12 INC | 1,633,059 | 5.5% | EDGAR |
| SC 13G/A | 2010-02-03 | BLAIR WILLIAM & CO/IL | K12 INC | 2,194,483 | 7.4% | EDGAR |
| SC 13G | 2010-01-21 | WELLS FARGO & CO/MN | K12 INC | 1,502,554 | 5.1% | EDGAR |
| SC 13G/A | 2009-07-10 | BLAIR WILLIAM & CO/IL | K12 INC | 3,066,235 | 10.6% | EDGAR |
| SC 13G/A | 2009-04-08 | EAGLE ASSET MANAGEMENT INC | K12 INC | 0 | 0.0% | EDGAR |
| SC 13G/A | 2009-02-18 | MOLLUSK HOLDINGS LLC | K12 INC | 1,928,863 | 6.7% | EDGAR |
| SC 13G/A | 2009-02-12 | LEARNING GROUP LLC | K12 INC | 4,665,083 | 16.2% | EDGAR |
| SC 13G | 2009-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | K12 INC | 1,446,230 | 5.0% | EDGAR |
| SC 13G | 2009-02-09 | TCW GROUP INC | K12 INC | 1,610,276 | 5.6% | EDGAR |
| SC 13G | 2009-01-26 | EAGLE ASSET MANAGEMENT INC | K12 INC | 1,771,429 | 6.2% | EDGAR |
| SC 13G | 2009-01-12 | BLAIR WILLIAM & CO/IL | K12 INC | 2,323,373 | 8.1% | EDGAR |
| SC 13G | 2008-02-14 | BEAR STEARNS COMPANIES INC | K12 INC | 3,450,748 | 12.7% | EDGAR |