SEC Form 4 · accession 0001437749-18-016252

Proto Labs Inc · PRLB

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Financial Officer

Period of report

Aug 24, 2018

Accepted (ET)

Aug 28, 2018 · 4:23 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001443669

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock	Aug 24, 2018	M	3,912	$62.90	A	29,415	D
Common Stock^F1	Aug 24, 2018	S	2,426	$145.509	D	26,989	D
Common Stock^F2	Aug 24, 2018	S	1,486	$146.2531	D	25,503	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Employee Stock Option (right to buy)^F3	$62.90	Aug 24, 2018	M	3,912	D	—	Dec 1, 2024	Common Stock	3,912	2,608	D

F1Reflects 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.
F2Reflects 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.
F3The option vests as to 20% of the shares in five annual installments beginning on December 1, 2015.