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Mesa Labs Insider Update: CFO Ownership Rises 12% in Latest Form 4

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Mesa Laboratories, Inc. (MLAB) – Form 4 insider transaction filed 06/20/2025

CFO John Sakys reported activity dated 06/18/2025 involving the exercise and settlement of restricted stock units (RSUs) and related tax withholding.

  • RSU exercise (Code M): 2,840 common shares were issued upon vesting of previously granted RSUs. Each RSU converts 1-for-1 into common stock.
  • Tax withholding (Code F): 1,243 of the newly issued shares were automatically withheld at a reference price of $92.99 to satisfy tax obligations.

After the transactions, Sakys’ direct beneficial ownership changed from 12,865 shares to 14,462 shares, a net increase of 1,597 shares (≈12.4%).

The RSU award vests in three equal annual installments beginning 06/18/2025, providing future potential share deliveries on the next two anniversary dates.

No derivative positions remain other than 5,511 unvested RSUs outstanding.

Because the share acquisition arose from planned equity compensation rather than open-market buying, the filing signals routine ownership growth rather than an active market purchase, though the net increase modestly aligns the CFO’s incentives with shareholders.

Positive

  • Net increase of 1,597 shares in CFO ownership, signalling continued alignment with shareholders
  • Three-year RSU vesting schedule encourages long-term performance focus

Negative

  • None.

Insights

TL;DR CFO gained 1,597 net shares via RSU vesting; routine, mildly positive alignment, limited trading signal.

The filing shows conversion of long-term compensation rather than discretionary buying. Sakys’ ownership rose 12%, now 14,462 shares, indicating continuing equity stake. No open-market sale occurred; the only disposition was automatic tax withholding at $92.99. Such routine Form 4s generally have low market impact, yet incremental insider ownership can be viewed as a modestly constructive governance sign. There is no information on company performance, so the event should not materially affect valuation or near-term trading dynamics.

TL;DR Standard equity-comp vesting; strengthens pay-for-performance linkage, no red flags.

The three-year RSU schedule aligns management with long-term shareholder value. Automatic share withholding (Code F) follows best-practice tax compliance. No accelerated vesting, hedging, or 10b5-1 plan usage was disclosed, suggesting adherence to internal trading policies. Overall governance implications are neutral-to-positive, with minimal risk indicators.

Insider Sakys John
Role CFO
Type Security Shares Price Value
Exercise Restricted Stock Units - 7 2,840 $0.00 --
Exercise Common Stock 2,840 $92.99 $264K
Tax Withholding Common Stock 1,243 $92.99 $116K
Holdings After Transaction: Restricted Stock Units - 7 — 5,511 shares (Direct); Common Stock — 15,705 shares (Direct)
Footnotes (1)
  1. Each RSU represents a contingent right to receive one share of the Issuer's common stock RSUs that vest 1/3 on June 18, 2025 and each of the next two anniversary dates Not Applicable
Form 4 Insider Transactions: What Each Field Means →
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*
Sakys John
(Last) (First) (Middle)
MESA LABORATORIES, INC.
12100 W. 6TH AVENUE
(Street)
LAKEWOOD CO 80228
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MESA LABORATORIES INC /CO/ [ MLAB ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
CFO
3. Date of Earliest Transaction (Month/Day/Year)
06/18/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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 06/18/2025 M 2,840 A $92.99 15,705 D
Common Stock 06/18/2025 F 1,243 D $92.99 14,462 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 - 7 (1) 06/18/2025 M 2,840 (2) (3) Common Stock 2,840 $0 5,511 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 1/3 on June 18, 2025 and each of the next two anniversary dates
3. Not Applicable
John Sakys 06/20/2025
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What did MLAB's Form 4 dated 06/20/2025 disclose?

CFO John Sakys exercised 2,840 RSUs and withheld 1,243 shares for taxes, raising direct ownership to 14,462 shares.

How many Mesa Laboratories shares does the CFO now own?

Following the reported transactions, John Sakys holds 14,462 common shares directly.

Were any shares sold in the open market by the CFO?

No open-market sales occurred; the only disposition was tax withholding (Code F) at $92.99 per share.

What is the vesting schedule of the reported RSUs?

The RSUs vest in three equal tranches: 1/3 on 06/18/2025 and on each of the next two anniversary dates.

Does the filing indicate use of a Rule 10b5-1 trading plan?

The form does not check the Rule 10b5-1(c) box, so no such plan is associated with these transactions.