Insider · CIK 0001542477

Langton William R.

Reports to the SEC for 1 company · MAPLE PLAIN, MN

Transactions

Companies

Filings

CIK

0001542477

Forms 4 and 5

Insider transactions

4 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2012-10-02	PRLBProto Labs IncM Exercise/Conversion	EVP of Finance	MExercise/Conversion	+8,250 sh	$2.66	+$21.9K	8,250
2012-10-02	PRLBProto Labs IncS Sale	EVP of Finance	SSale	−8,250 sh	$34.00	−$281K	0
2012-10-02	PRLBProto Labs Inc · Employee Stock Option (right to buy)M Exercise/Conversion	EVP of Finance	MExercise/Conversion	−8,250 sh	—	—	201,750
2012-05-07	PRLBProto Labs Inc · Employee Stock Option (right to buy)A Award	EVP of Finance	AAward	+8,480 sh	—	—	8,480

5540 PIONEER CREEK DRIVE

MAPLE PLAIN, MN, 55359