Exhibit C

MTS SYSTEMS CORPORATION

Reconciliation of Earnings Per Share Excluding Restructuring, Acquisition-Related

and Acquisition Inventory Fair Value Adjustment Expenses

(unaudited - in thousands, except per share data)

Six Months Ended

March 30, 2019

March 31, 2018

Pre-Tax

Tax

Net

Pre-Tax

Tax

Net

Net income

$

28,273

$

3,612

$

24,661

$

19,646

$

(21,943)

$

41,589

Restructuring expenses ¹

130

33

97

608

154

454

Acquisition-related expenses ²

1,035

217

818

—

—

—

Acquisition inventory fair value adjustment ¹

984

148

836

—

—

—

Adjusted net income ³

$

30,422

$

4,010

$

26,412

$

20,254

$

(21,789)

$

42,043

Weighted average diluted common shares outstanding

19,393

19,258

Diluted earnings per share

$

1.46

$

0.19

$

1.27

$

1.02

$

(1.14)

$

2.16

Impact of restructuring expenses

0.01

—

0.01

0.03

0.01

0.02

Impact of acquisition-related expenses

0.05

0.01

0.04

—

—

—

Impact of acquisition inventory fair value adjustment

0.05

0.01

0.04

—

—

—

Adjusted diluted earnings per share ³

$

1.57

$

0.21

$

1.36

$

1.05

$

(1.13)

$

2.18

¹  In determining the tax impact of restructuring expenses and acquisition inventory fair value adjustment, we applied the statutory rate in effect for each jurisdiction where the expenses were incurred.

²   In determining the tax impact of acquisition-related expenses, we applied a U.S. effective income tax rate before discrete items to these expenses.

³   Denotes non-GAAP financial measure.