Mesa Labs ex-officer may sell $2.6M in stock

MESA LABORATORIES INC (MLAB) is the issuer of common stock that former officer Gary M. Owens has notified for potential sale under Rule 144.

Rhea-AI Filing Summary

MESA LABORATORIES INC (MLAB) is the issuer of common stock that former officer Gary M. Owens has notified for potential sale under Rule 144. The notice covers up to 20,358 shares of common stock, with an indicated aggregate market value of $2,600,734.50 and shares outstanding of 5,595,869.

The shares to be sold were acquired through multiple restricted stock vesting events between June 2020 and June 2026 as compensation from the issuer. The notice also lists Owens’s prior sales over the past three months, executed through Fidelity Brokerage Services LLC acting as attorney-in-fact.

Key Figures

Shares to be sold under Rule 144: 20,358 shares Aggregate market value of shares to be sold: $2,600,734.50 Shares outstanding: 5,595,869 shares +2 more

5 metrics

Shares to be sold under Rule 144 20,358 shares Common stock of MESA LABORATORIES INC covered by the notice

Aggregate market value of shares to be sold $2,600,734.50 Value of 20,358 MLAB common shares covered by the notice

Shares outstanding 5,595,869 shares Outstanding MLAB common stock referenced in the notice

Past sale on 06/16/2026 3,706 shares for $375,295.50 Common stock sale reported for the past 3 months

Past sale on 08/21/2026 20,000 shares for $2,450,059.20 Common stock sale reported for the past 3 months

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 06/15/2020 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Gary M. Owens"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for MLAB disclose about Gary M. Owens' planned sales?

The notice states that former officer Gary M. Owens may sell up to 20,358 shares of MESA LABORATORIES INC common stock under Rule 144, with an indicated aggregate market value of $2,600,734.50, based on shares acquired via restricted stock vesting compensation.

How many Mesa Laboratories (MLAB) shares are outstanding according to this notice?

The notice lists 5,595,869 shares of MESA LABORATORIES INC common stock outstanding, in connection with the planned sale of shares under Rule 144 by former officer Gary M. Owens.

What is the aggregate market value of MLAB shares covered by Gary M. Owens' Rule 144 notice?

The Rule 144 notice shows an aggregate market value of $2,600,734.50 for the 20,358 shares of MESA LABORATORIES INC common stock that may be sold by Gary M. Owens.

How were the Mesa Laboratories (MLAB) shares to be sold by Gary M. Owens originally acquired?

The shares were acquired through multiple restricted stock vesting events from June 15, 2020 through June 21, 2026, granted by MESA LABORATORIES INC as compensation to Gary M. Owens.

What MLAB share sales by Gary M. Owens are reported for the past three months?

The notice lists two sales of MLAB common stock: 3,706 shares for $375,295.50 on 06/16/2026, and 20,000 shares for $2,450,059.20 on 08/21/2026, associated with Gary M. Owens.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/27/2026 - 03:33 PM EDT Accepted by SEC EDGAR 08/27/2026 - 03:33 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001700671
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MESA LABORATORIES INC /CO/
SEC File Number	000-11740
Address of Issuer	12100 W 6TH AVE LAKEWOOD COLORADO 80228
Phone	3039878000
Name of Person for Whose Account the Securities are To Be Sold	Owens Gary M
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	20358	2600734.50	5595869	08/27/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/15/2020	Restricted Stock Vesting	Issuer			560	06/15/2020	Compensation
Common	09/15/2020	Restricted Stock Vesting	Issuer			863	09/15/2020	Compensation
Common	06/15/2021	Restricted Stock Vesting	Issuer			1025	06/15/2021	Compensation
Common	06/15/2022	Restricted Stock Vesting	Issuer			2683	06/15/2022	Compensation
Common	06/15/2026	Restricted Stock Vesting	Issuer			4531	06/15/2026	Compensation
Common	06/18/2026	Restricted Stock Vesting	Issuer			4753	06/18/2026	Compensation
Common	06/21/2026	Restricted Stock Vesting	Issuer			5943	06/21/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Gary M. Owens 12100 West Sixth Avenue Lakewood CO 80228	Common	06/16/2026	3706	375295.50
Gary M. Owens 12100 West Sixth Avenue Lakewood CO 80228	Common	08/21/2026	20000	2450059.20

144: Remarks and Signature

Remarks
Date of Notice	08/27/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Adam Gehring, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Gary M. Owens
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)