FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response...
0.5
                      
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Tumelty John B.
2. Issuer Name and Ticker or Trading Symbol

Proto Labs Inc [ PRLB ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
VP/GM & Managing Director-EMEA
(Last)          (First)          (Middle)

5540 PIONEER CREEK DRIVE
3. Date of Earliest Transaction (MM/DD/YYYY)

11/22/2017
(Street)

MAPLE PLAIN, MN 55359
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

11/27/2017 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   (1) 11/22/2017     M    7341   A $78.59   23536   D    
Common Stock   11/22/2017     M    1898   A $67.15   25434   D    
Common Stock   11/22/2017     M    1891   A $57.88   27325   D    
Common Stock   11/22/2017     S    13556   D $92.0708   (2) 13769   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  This filing amends Table I to correct the balances set forth in Column 5 thereof.
(2)  Reflects the weighted average price of 13,556 shares of common stock of Proto Labs, Inc. sold by the reporting person on November 22, 2017 with sale prices ranging from $91.50 to $92.45 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.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Tumelty John B.
5540 PIONEER CREEK DRIVE
MAPLE PLAIN, MN 55359


VP/GM & Managing Director-EMEA

Signatures
/s/ Samuel A. Rosenbaum, attorney-in-fact 11/30/2017
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
Proto Labs (NYSE:PRLB)
Historical Stock Chart
From Feb 2024 to Mar 2024 Click Here for more Proto Labs Charts.
Proto Labs (NYSE:PRLB)
Historical Stock Chart
From Mar 2023 to Mar 2024 Click Here for more Proto Labs Charts.