[Form 4] Mesa Laboratories Inc Insider Trading Activity

Rhea-AI Filing Summary

Form 4 filing – Mesa Laboratories Inc. (MLAB)

President & CEO Gary M. Owens reported two transactions dated 06/21/2025: (1) the conversion of 3,301 Restricted Stock Units (Code “M”) into common stock at a referenced price of $95.82 per share, and (2) the withholding of 1,445 shares for tax purposes (Code “F”) at the same price. Following these transactions, Owens’ direct ownership rose from an implied 50,721 shares to 52,577 shares, a net increase of 1,856 shares. The RSUs originated from a grant that vests one-third annually (2024-2026). No open-market purchases or sales were disclosed; all activity relates to equity compensation.

The filing is routine, indicating continued equity alignment but limited new cash investment by the insider.

Positive

• Net increase of 1,856 shares in CEO’s direct holdings, modestly strengthening insider alignment.

Negative

• 1,445 shares disposed to cover taxes, indicating no out-of-pocket insider buying.

Insights

Financial Analyst

TL;DR: Routine RSU vesting; modest net share increase, negligible market impact.

The CEO’s Form 4 shows standard compensation mechanics. Converting 3,301 RSUs and withholding 1,445 shares for taxes results in a 1,856-share net gain, lifting direct holdings to 52,577 shares. At the stated $95.82 reference price, gross value of shares acquired is about $316k; tax-withheld shares equal roughly $139k. No cash was paid by the executive, so this does not signal willingness to buy shares in the open market. Given Mesa Labs’ 5.4 million basic shares outstanding (not in filing but typical), the net change equals ~0.03 %, immaterial to ownership structure. Investors should view the event as neutral housekeeping rather than a directional signal.

Corporate Governance Expert

TL;DR: Equity retention aligns incentives; sale for taxes standard, not alarming.

The staggered-vesting RSU program promotes long-term alignment between the CEO and shareholders. Owens retained ~56 % of the vested shares after satisfying tax obligations, a common best-practice threshold. Because no discretionary sale occurred, there is no negative governance implication. The Rule 10b5-1 checkbox is blank, suggesting the transactions were not under a pre-arranged plan, but their compensation-driven nature still renders them low-risk for perception. Overall governance impact is neutral-to-slightly positive.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Owens Gary M

(Last) (First) (Middle)

12100 W. 6TH AVENUE

(Street)

LAKEWOOD CO 80228

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
06/20/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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	06/21/2025		M		3,301	A	$95.82	54,022	D
Common Stock	06/21/2025		F		1,445	D	$95.82	52,577	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction 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 (Month/Day/Year)		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: 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
Restricted Stock Units - 8	(1)	06/21/2025		M			3,301	(2)	(3)	Common Stock	3,301	$0	3,300	D

Explanation of Responses:

1. Each RSU represents a contingent right to receive one share of the Issuer's common stock

2. RSUs that vest 1/3 on June 21, 2024 and each of the next two anniversary dates

3. Not Applicable

	John Sakys under Power of Attorney by Gary Owens	06/24/2025
	** 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 Number.

FAQ

What triggered Gary Owens’ Form 4 filing for MLAB?

The CEO converted 3,301 RSUs into common stock and withheld 1,445 shares for taxes on 06/21/2025.

How many Mesa Laboratories shares does the CEO now own?

After the transactions, Gary Owens directly owns 52,577 common shares.

Was there any open-market purchase or sale?

No. All activity involved equity compensation vesting; no open-market trades were reported.

What was the price used in the RSU conversion and tax withholding?

Both transactions reference a price of $95.82 per share.

Do the RSUs continue to vest?

The original RSU grant vests one-third annually, with remaining tranches due on the next two anniversaries.