Mesa Laboratories grants director 2,510 RSUs

Director Shiraz Shabanali Ladiwala received 2,510 time-vested RSUs tied to MLAB common stock.

Rhea-AI Filing Summary

MESA LABORATORIES INC (symbol: MLAB) is the issuer of record for a Form 4 filing submitted to the SEC. Ladiwala Shiraz Shabanali reported acquisition or exercise transactions in this Form 4 filing.

MESA LABORATORIES INC (MLAB) reported that director Shiraz Shabanali Ladiwala received a grant of 2,510 Restricted Stock Units (RSUs) on September 9, 2026. Each RSU represents a contingent right to receive one share of common stock and vests on September 9, 2027. Following this grant, Ladiwala holds 2,510 RSUs directly, and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Grant/Award: 2,510 shares

Grant/Award 1 txn

Insider Ladiwala Shiraz Shabanali

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units - 7 F1, F2, F3	2,510	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units - 7 — 2,510 contracts (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 vest on September 9, 2027
3. F3. Not Applicable

Key Figures

RSUs granted: 2,510 units Transaction price per RSU: $0.00 RSU vesting date: September 9, 2027 +2 more

5 metrics

RSUs granted 2,510 units Grant of Restricted Stock Units on September 9, 2026

Transaction price per RSU $0.00 Compensation-related grant with no cash price per unit

RSU vesting date September 9, 2027 Date when the granted RSUs vest

Underlying common shares per RSU 1 share Each RSU represents a contingent right to one share of common stock

RSUs held after transaction 2,510 units Total RSUs directly held by Ladiwala after the grant

Key Terms

Restricted Stock Units, contingent right, vesting

3 terms

Restricted Stock Units financial

"security titled "Restricted Stock Units - 7" with 2,510 units granted"

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.

contingent right financial

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

vesting financial

"RSUs that vest on September 9, 2027"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

FAQ

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

What insider transaction did MLAB disclose for Shiraz Shabanali Ladiwala?

MLAB disclosed that director Shiraz Shabanali Ladiwala received a grant of 2,510 RSUs on September 9, 2026, as a compensation-related award with no cash price per unit reported.

How many Mesa Laboratories (MLAB) RSUs were granted in this Form 4?

The filing reports a grant of 2,510 Restricted Stock Units. Each RSU represents a contingent right to receive one share of Mesa Laboratories common stock upon vesting.

When do the newly granted MLAB RSUs to Ladiwala vest?

The RSUs granted to Shiraz Shabanali Ladiwala vest on September 9, 2027, as disclosed in the footnotes describing the vesting schedule for this award.

What is Ladiwala’s resulting RSU holding in MLAB after this transaction?

After the reported grant, Shiraz Shabanali Ladiwala directly holds 2,510 RSUs linked to Mesa Laboratories common stock, according to the post-transaction holdings figure.

Was the MLAB RSU grant made under a Rule 10b5-1 trading plan?

No. The filing indicates no Rule 10b5-1 trading plan for this transaction, as the document-level 10b5-1 checkbox is not marked as being made under such a plan.

What type of security was reported in this MLAB Form 4?

The Form 4 reports Restricted Stock Units (RSUs) as the security, each representing a contingent right to receive one share of Mesa Laboratories common stock upon vesting.

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

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Available on EDGAR 09/11/2026 - 02:11 PM Accepted by SEC EDGAR 09/11/2026 - 02:09 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)
09/09/2026

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

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 - 7	(1)	09/09/2026		A		2,510		(2)	(3)	Common Stock	2,510	$0	2,510	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 on September 9, 2027

3. Not Applicable

	John Sakys under Power of Attorney by Shiraz Ladiwala	09/11/2026
	** 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)