| SC 13G | 2012-02-14 | Praesidium Investment Management Company, LLC | MTS SYSTEMS CORP | 802,115 | 5.1% | EDGAR |
| SC 13G/A | 2012-02-10 | BlackRock Inc. | MTS SYSTEMS CORP | 1,157,615 | 7.4% | EDGAR |
| SC 13G/A | 2012-02-10 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,809,438 | 11.5% | EDGAR |
| SC 13G/A | 2012-02-07 | VANGUARD GROUP INC | MTS SYSTEMS CORP | 812,641 | 5.2% | EDGAR |
| SC 13G/A | 2011-05-09 | PZENA INVESTMENT MANAGEMENT LLC | MTS SYSTEMS CORP | 723,223 | 4.7% | EDGAR |
| SC 13G | 2011-02-11 | PZENA INVESTMENT MANAGEMENT LLC | MTS SYSTEMS CORP | 1,006,081 | 6.6% | EDGAR |
| SC 13G | 2011-02-10 | VANGUARD GROUP INC | MTS SYSTEMS CORP | 767,736 | 5.0% | EDGAR |
| SC 13G/A | 2011-02-08 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,852,972 | 12.1% | EDGAR |
| SC 13G/A | 2011-02-07 | BlackRock Inc. | MTS SYSTEMS CORP | 1,195,403 | 7.8% | EDGAR |
| SC 13G/A | 2010-02-08 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,857,144 | 11.2% | EDGAR |
| SC 13G | 2010-01-29 | BlackRock Inc. | MTS SYSTEMS CORP | 1,269,186 | 7.6% | EDGAR |
| SC 13G/A | 2010-01-28 | ROYCE & ASSOCIATES LLC | MTS SYSTEMS CORP | 457,538 | 2.8% | EDGAR |
| SC 13G/A | 2009-03-10 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,687,423 | 10.0% | EDGAR |
| SC 13G/A | 2009-02-13 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,652,466 | 9.8% | EDGAR |
| SC 13G/A | 2009-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | MTS SYSTEMS CORP | 2,950 | 0.0% | EDGAR |
| SC 13G | 2009-02-05 | BARCLAYS GLOBAL INVESTORS NA /CA/ | MTS SYSTEMS CORP | 531,817 | 3.2% | EDGAR |
| SC 13G/A | 2009-01-26 | ROYCE & ASSOCIATES LLC | MTS SYSTEMS CORP | 1,050,045 | 6.2% | EDGAR |
| SC 13G/A | 2008-08-08 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,703,587 | 10.0% | EDGAR |
| SC 13G/A | 2008-02-14 | MAIRS & POWER INC | MTS SYSTEMS CORP | 1,667,285 | 9.4% | EDGAR |
| SC 13G/A | 2008-02-13 | PRICE T ROWE ASSOCIATES INC /MD/ | MTS SYSTEMS CORP | 1,088,350 | 6.1% | EDGAR |