MTS Systems Corporation (NASDAQ:MTSC), saw four insiders lower their holdings in the company. VP and CFO Susan E. Knight dropped 411 shares of common stock at an average price of $69.78 per share; SVP, GC and CCO Steven G. Mahon sold 374 shares at an average of $69.78 per share; Senior VP and Chief HR Officer Kristin Trecker disposed of 188 shares at an average of $69.78 per share; and President and CEO Jeffrey A. Graves lowered his position by 1,076 shares at an average of $69.78 per share.

Following these transactions, Knight 19,340 shares directly; Mahon directly holds 3,197.2589 shares; Trecker now has 1,418 shares directly; while Graves now holds 7,877 shares directly in MTS Systems Corporation (NASDAQ:MTSC), the $1.04 billion market cap global supplier of test systems and position sensors.

The biggest hedge fund involved with the company is Ariel Investments, the hedge fund run by John W. Rogers. This fund reported a decrease in activity by 3% last quarter, and now holds 977,578 shares worth about $97 million.

Disclosure: The author, Daniel Forstein, holds no positions in any stocks mentioned.