NOVANTA INC — Director's Dealing 2011

May 25, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GSI GROUP INC (GSIG)
CIK: 0001076930
Period of Report: 2011-05-23

Reporting Person: POND BYRON O (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-23	Common Stock	P	10000	$11.59	Acquired	60222	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.55 to $11.77, inclusive. The reporting person undertakes to provide to GSI Group Inc., any security holder of GSI Group Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in the previous sentence.