Mesa Labs director gains 3,810 shares via RSUs

For MESA LABORATORIES INC (MLAB), director Shiraz Shabanali Ladiwala reported the vesting and settlement of 3,810 Restricted Stock Units (RSUs) on August 15, 2026.

Rhea-AI Filing Summary

For MESA LABORATORIES INC (MLAB), director Shiraz Shabanali Ladiwala reported the vesting and settlement of 3,810 Restricted Stock Units (RSUs) on August 15, 2026. The RSUs, each representing a contingent right to one share of common stock, were exercised at $0.00 per share, converting into 3,810 shares of common stock. Following this transaction, Ladiwala directly holds 12,333 shares of MLAB common stock.

Insider Trade Summary

3,810 shares exercised/converted

Exercise 2 txns

Insider Ladiwala Shiraz Shabanali

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units - 6 F1, F2, F3	3,810	$0.00	$0.00
Exercise	Common Stock	3,810	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units - 6 — 0 contracts (Direct); Common Stock — 12,333 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: 3,810 shares Common shares acquired: 3,810 shares Exercise price: $0.00 per share +2 more

5 metrics

RSUs exercised 3,810 shares Restricted Stock Units converted into common stock on August 15, 2026

Common shares acquired 3,810 shares Common stock received from RSU vesting and conversion on August 15, 2026

Exercise price $0.00 per share Price at which RSUs converted into MLAB common stock

Shares owned after transaction 12,333 shares Direct MLAB common stock holdings following the August 15, 2026 transaction

RSUs remaining from this grant 0 shares Restricted Stock Units - 6 position after vesting and conversion

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 equity transaction did MLAB director Shiraz Ladiwala report on August 15, 2026?

Shiraz Ladiwala reported the vesting and exercise of 3,810 Restricted Stock Units into 3,810 shares of MESA LABORATORIES INC common stock at $0.00 per share. These RSUs represented a contingent right to receive common shares upon vesting.

How many MLAB shares does Shiraz Ladiwala own after the reported Form 4 transaction?

After the August 15, 2026 transaction, Shiraz Ladiwala directly owns 12,333 shares of MLAB common stock. This reflects the addition of 3,810 shares received from the vesting and conversion of Restricted Stock Units on that date.

What happened to Shiraz Ladiwala’s MLAB Restricted Stock Units in the latest Form 4 filing?

Ladiwala’s 3,810 Restricted Stock Units vested and were exercised on August 15, 2026, disposing of the derivative position and converting into 3,810 common shares. After this event, the reported RSU balance from this grant is 0.

At what price were the MLAB Restricted Stock Units converted into common stock?

The 3,810 Restricted Stock Units were converted into MLAB common stock at an exercise price of $0.00 per share. This reflects typical RSU settlement, where shares are delivered without a cash exercise price when vesting conditions are satisfied.

Does the MLAB Form 4 indicate a net buy or sell by Shiraz Ladiwala?

The Form 4 reflects a neutral net effect in buy/sell terms: 3,810 RSUs were disposed of as a derivative security, while the same number of 3,810 common shares were acquired. It represents RSU settlement rather than an open-market trade.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/17/2026 - 05:55 PM Accepted by SEC EDGAR 08/17/2026 - 05:55 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^*

Ladiwala Shiraz Shabanali

(Last) (First) (Middle)

C/O THERMO FISHER SCIENTIFIC INC.

168 THIRD AVENUE

(Street)

WALTHAM MASSACHUSETTS 02451

(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		3,810	A	$0	12,333	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 - 6	(1)	08/15/2026		M			3,810	(2)	(3)	Common Stock	3,810	$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 Shiraz Ladiwala	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)