Proto Labs Inc — Director's Dealing 2013

Nov 12, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Proto Labs Inc (PRLB)
CIK: 0001443669
Period of Report: 2013-11-08

Reporting Person: Cleveland Bradley A. (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-11-08	Common Stock	S	4648	$79.39	Disposed	112720	Indirect
2013-11-08	Common Stock	S	12565	$80.46	Disposed	100155	Indirect
2013-11-08	Common Stock	S	7709	$81.45	Disposed	92446	Indirect
2013-11-08	Common Stock	S	21115	$82.68	Disposed	71331	Indirect
2013-11-08	Common Stock	S	7096	$83.57	Disposed	64235	Indirect

Footnotes

F1: Sales effected pursuant to Rule 10b5-1 trading plan adopted by the Bradley A. Cleveland Declaration Trust (the "Trust") on August 30, 2013.

F2: Reflects the weighted average price of 4,648 shares of common stock of Proto Labs, Inc. sold by the Trust in multiple transactions on November 8, 2013 with sale prices ranging from $78.96 to $79.92 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F3: Reflects the weighted average price of 12,565 shares of common stock of Proto Labs, Inc. sold by the Trust in multiple transactions on November 8, 2013 with sale prices ranging from $79.98 to $80.94 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F4: Reflects the weighted average price of 7,709 shares of common stock of Proto Labs, Inc. sold by the Trust in multiple transactions on November 8, 2013 with sale prices ranging from $81.00 to $81.92 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F5: Reflects the weighted average price of 21,115 shares of common stock of Proto Labs, Inc. sold by the Trust in multiple transactions on November 8, 2013 with sale prices ranging from $82.08 to $83.07 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F6: Reflects the weighted average price of 7,096 shares of common stock of Proto Labs, Inc. sold by the Trust in multiple transactions on November 8, 2013 with sale prices ranging from $83.15 to $83.74 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.