SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Archbold Brian David

(Last)

(First)

(Middle)

12100 W. 6TH AVENUE

(Street)

LAKEWOOD

80228

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/10/2019

3. Issuer Name and Ticker or Trading Symbol
MESA LABORATORIES INC /CO [ MLAB ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP of Continuous Improvement

5. If Amendment, Date of Original Filed (Month/Day/Year)

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Restricted Stock Award⁽³⁾	310	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Restricted Stock Unit	⁽¹⁾	⁽²⁾	Common Stock	350	$0	D
Non Qualified Stock Option	01/08/2019⁽⁴⁾	01/08/2024	Common Stock	580	$129.1	D
Non Qualified Stock Option	04/02/2024⁽⁵⁾	04/02/2024	Common Stock	1,050	$142.4	D
Non Qualified Stock Options	06/10/2020⁽⁶⁾	06/10/2025	Common Stock	2,129	$203.54	D

Explanation of Responses:

1. RSUs vest 1/5 on June 15, 2019 and each of next four anniversary dates

2. Not Applicable

3. RSA vests 1/5 on January 6, 2020 and each of the next three anniversary dates

4. 1/4 exercisable on January 8, 2020 and each of the next three anniversary dates

5. 1/5 exercisable on April 2,2019 and each of the next four anniversary dates

6. 1/4 exercisable on June 10, 2020 and each of the next three anniversary dates

	Brian Archbold	06/13/2019
	** 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 5 (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 Number.