MLAB insider files Form 144 to sell 2,516 shares

MLAB files a Form 144 notice to sell 2,516 shares of Common Stock.

Rhea-AI Filing Summary

MLAB files a Form 144 notice to sell 2,516 shares of Common Stock. The filing lists 2,516 shares associated with a Restricted Stock Vesting event dated 06/18/2026. It also reports 1,151 shares sold during the prior three months on 06/16/2026 with an associated figure of $116,558.32.

Insights

Securities Compliance Counsel

Form 144 notifies the market of a proposed affiliate sale of 2,516 shares.

The filing lists 2,516 shares tied to a Restricted Stock Vesting event dated 06/18/2026 and discloses 1,151 shares sold in the past three months on 06/16/2026. The excerpt shows numeric figures for prior sales.

Timing and exact method of the proposed resale are not detailed in the excerpt; subsequent trade filings or broker reports would show execution details. Cash‑flow treatment and any sale limits under Rule 144 are not described in the provided text.

Key Figures

Shares to be sold: 2,516 shares Shares sold in prior 3 months: 1,151 shares Amount shown with prior sale: $116,558.32 +1 more

4 metrics

Shares to be sold 2,516 shares listed under Securities To Be Sold; <date>06/18/2026</date>

Shares sold in prior 3 months 1,151 shares sold on <date>06/16/2026</date>

Amount shown with prior sale $116,558.32 associated with the 1,151‑share sale on <date>06/16/2026</date>

Restricted stock vesting date 06/18/2026 vesting event linked to the 2,516 shares

Key Terms

Restricted Stock Vesting, Securities To Be Sold, Securities Sold During The Past 3 Months

3 terms

Restricted Stock Vesting financial

"Common | 06/18/2026 | Restricted Stock Vesting"

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.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

FAQ

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

What does MLAB's Form 144 disclose about the proposed sale?

The filing discloses a proposed sale of 2,516 shares of Common Stock tied to a Restricted Stock Vesting event on 06/18/2026. It also notes 1,151 shares were sold on 06/16/2026.

Who is identified in the MLAB Form 144 filing?

The filing lists Fidelity Brokerage Services LLC and an individual at the address shown, Brian D. Archbold. The excerpt pairs the broker and the individual with the listed securities and transactions.

How many shares were sold in the past three months per the filing?

The Form 144 excerpt reports 1,151 shares sold during the past three months, with the sale dated 06/16/2026 and an associated figure of $116,558.32 shown in the excerpt.

Does the filing state the sale method or proceeds recipient?

The provided excerpt does not specify the sale method or who will receive proceeds. The text lists quantities and dates but does not describe the distribution method or cash‑flow treatment.

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

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Accepted by SEC EDGAR 06/22/2026 - 03:51 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	0001776947
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	Archbold Brian David
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	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	2516	225186.78	5524931	06/22/2026	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	06/18/2026	Restricted Stock Vesting	Issuer			2516	06/18/2026	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
Brian D. Archbold 12100 West Sixth Avenue Lakewood CO 80228	Common	06/16/2026	1151	116558.32

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	06/22/2026
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 Brian D. Archbold
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)