Proto Labs Inc — Director's Dealing 2018

Aug 28, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Proto Labs Inc (PRLB)
CIK: 0001443669
Period of Report: 2018-08-24

Reporting Person: WAY JOHN (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-08-24	Common Stock	M	3912	$62.90	Acquired	29415	Direct
2018-08-24	Common Stock	S	2426	$145.509	Disposed	26989	Direct
2018-08-24	Common Stock	S	1486	$146.2531	Disposed	25503	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-08-24	Employee Stock Option (right to buy)	$62.90	M	3912	Disposed	2024-12-01	Common Stock (3912)	Direct

Footnotes

F1: Reflects the weighted average price of 2,426 shares of common stock of Proto Labs, Inc. sold by the reporting person on August 24, 2018 with sale prices ranging from $145.00 to $145.95 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.

F2: Reflects the weighted average price of 1,486 shares of common stock of Proto Labs, Inc. sold by the reporting person on August 24, 2018 with sale prices ranging from $146.10 to $146.65 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: The option vests as to 20% of the shares in five annual installments beginning on December 1, 2015.