STOCK TITAN

Mesa Laboratories (NASDAQ: MLAB) director adds 2,784 shares via RSU vesting

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Mesa Laboratories director Mark Christopher Capone reported the vesting and exercise of 2,784 Restricted Stock Units into an equal number of shares of common stock on August 15, 2026. The derivative RSU position was reduced to zero in this transaction, and his directly held common stock position increased to 6,213 shares.

Positive

  • None.

Negative

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Insider Capone Mark Christopher
Role Director
Type Security Shares Price Value
Exercise Restricted Stock Units - 3 F1, F2, F3 2,784 $0.00 $0.00
Exercise Common Stock 2,784 $0.00 $0.00
Holdings After Transaction: Restricted Stock Units - 3 — 0 shares (Direct); Common Stock — 6,213 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
RSUs Exercised 2,784 shares Restricted Stock Units converted into common stock on August 15, 2026
Common Shares Acquired 2,784 shares Common stock received from RSU vesting and exercise on August 15, 2026
Common Shares Held After 6,213 shares Directly held Mesa Laboratories common stock following the reported transactions
RSU Transaction Price $0.0000 per share Exercise/conversion of RSUs reported with a per-share transaction price of 0.0000
Exercise Transactions Count 1 Transaction summary lists one derivative exercise/conversion (code M)
Restricted Stock Units financial
"Each RSU represents a contingent right to receive one share of the Issuer's common stock"
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
"transaction_code_description: 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.
acquired_disposed_code financial
"transaction_direction_source: acquired_disposed_code"
direct or indirect ownership financial
"direct_or_indirect uses D/I for Direct/Indirect ownership type"

FAQ

What did MLAB director Mark Christopher Capone report in this Form 4?

He reported the vesting and exercise of 2,784 Restricted Stock Units into 2,784 shares of Mesa Laboratories common stock, leaving him with 6,213 common shares held directly after the transactions.

How many Mesa Laboratories (MLAB) RSUs vested for Mark Christopher Capone?

A total of 2,784 RSUs vested for Mark Christopher Capone. Each RSU represents a contingent right to receive one share of Mesa Laboratories common stock, and these RSUs vested on August 15, 2026.

What is Mark Christopher Capone’s Mesa Laboratories (MLAB) shareholding after this filing?

Following the reported transactions, Mark Christopher Capone directly holds 6,213 shares of Mesa Laboratories common stock. This reflects the addition of 2,784 shares received upon the vesting and conversion of RSUs.

Was there a net buy or sell of Mesa Laboratories (MLAB) stock in this Form 4?

There was no net market buy or sell reported. The filing shows an RSU derivative position disposed of and an equal number of common shares acquired, resulting in a netBuySellDirection of neutral in the transaction summary.

On what date did the reported Mesa Laboratories (MLAB) RSUs vest and convert?

The RSUs vested and were exercised into common stock on August 15, 2026. Footnotes specify that these RSUs vested on that date and that each RSU corresponds to one share of Mesa Laboratories common stock.

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

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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*
Capone Mark Christopher

(Last)(First)(Middle)
320 WAKARA WAY

(Street)
SALT LAKE CITY UTAH 84108

(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)
XDirector10% 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)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/15/2026M2,784A$06,213D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units - 3(1)08/15/2026M2,784 (2) (3)Common Stock2,784$00D
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 Mark Capone08/17/2026
** Signature of Reporting PersonDate
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)