Mesa Labs director gains 2,784 shares in RSU vesting

Mesa Laboratories director R. Tony Tripeny reported the vesting and settlement of 2,784 Restricted Stock Units (RSUs) into 2,784 shares of common stock on August 15, 2026.

Rhea-AI Filing Summary

Mesa Laboratories director R. Tony Tripeny reported the vesting and settlement of 2,784 Restricted Stock Units (RSUs) into 2,784 shares of common stock on August 15, 2026. The RSUs, each representing a contingent right to one common share, vested on that date, increasing his directly held common stock to 9,082 shares. The derivative RSU position was reduced to zero as a result of this exercise and conversion.

Insider Trade Summary

2,784 shares exercised/converted

Exercise 2 txns

Insider Tripeny R Tony

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units - 4 F1, F2, F3	2,784	$0.00	$0.00
Exercise	Common Stock	2,784	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units - 4 — 0 contracts (Direct); Common Stock — 9,082 shares (Direct)

Footnotes (3)

1. F1. Each RSU represents a contingent right to receive one share of the Issuer's common stock
2. F2. RSUs that vested on August 15, 2026
3. F3. Not Applicable

Key Figures

RSUs exercised/converted: 2,784.0000 shares Common shares acquired from RSUs: 2,784.0000 shares Shares held after transaction: 9,082.0000 shares +1 more

4 metrics

RSUs exercised/converted 2,784.0000 shares Restricted Stock Units converted into common stock on August 15, 2026

Common shares acquired from RSUs 2,784.0000 shares Common stock received upon RSU vesting and conversion on August 15, 2026

Shares held after transaction 9,082.0000 shares Total directly owned Mesa Laboratories common stock following the RSU conversion

Reported transaction price per share 0.0000 Per-share value reported for both RSU derivative and resulting common stock entries

Key Terms

Restricted Stock Units, derivative security, contingent right

3 terms

Restricted Stock Units financial

"Each RSU represents a contingent right to receive one share"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

contingent right financial

"represents a contingent right to receive one share"

FAQ

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

What insider transaction did R. Tony Tripeny report for MLAB on August 15, 2026?

R. Tony Tripeny reported the vesting and conversion of 2,784 RSUs into 2,784 shares of Mesa Laboratories common stock on August 15, 2026, reflecting a routine equity award settlement rather than an open-market purchase or sale.

How many Mesa Laboratories (MLAB) shares does R. Tony Tripeny hold after this Form 4?

After the reported transactions, R. Tony Tripeny directly holds 9,082 shares of Mesa Laboratories common stock. This total reflects the addition of 2,784 shares received upon RSU vesting and settlement on August 15, 2026.

What happened to the 2,784 Restricted Stock Units reported by MLAB director Tripeny?

The 2,784 Restricted Stock Units vested on August 15, 2026 and were exercised/converted into an equal number of Mesa Laboratories common shares. Following this conversion, the reported RSU derivative position was reduced to zero.

Were the MLAB Form 4 transactions by R. Tony Tripeny market purchases or sales?

The Form 4 reports an exercise/conversion of RSUs into common stock, not open-market purchases or sales. The derivative RSUs were disposed as a derivative position, and 2,784 common shares were acquired directly at a reported price of $0.00 per share.

What does each RSU reported by MLAB director Tripeny represent?

Each RSU reported represents a contingent right to receive one share of Mesa Laboratories common stock. Upon vesting on August 15, 2026, these RSUs were settled in shares, delivering 2,784 common shares to the reporting person.

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

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Available on EDGAR 08/17/2026 - 05:31 PM Accepted by SEC EDGAR 08/17/2026 - 05:30 PM Learn about SEC filing dates

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^*

Tripeny R Tony

(Last) (First) (Middle)

12100 W 6TH AVE

(Street)

LAKEWOOD COLORADO 80228

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2026

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

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

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

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	08/15/2026		M		2,784	A	$0	9,082	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 - 4	(1)	08/15/2026		M			2,784	(2)	(3)	Common Stock	2,784	$0	0	D

Explanation of Responses:

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

2. RSUs that vested on August 15, 2026

3. Not Applicable

	John Sakys Under Power of Attorney by Tony Tripeny	08/17/2026
	** 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.
* Form 4: SEC 1474 (03-26)