Key facts
- This page summarizes John Sakys's Form 4 filing for MESA LABORATORIES INC /CO/ (MLAB).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 20 Jun 2025, 17:22.
John Sakys - 18 Jun 2025 Form 4 Insider Report for MESA LABORATORIES INC /CO/ (MLAB)
- Reporting relationship
- CFO
- Issuer ticker
- MLAB
- Reported as of
- 18 Jun 2025
- Net transaction value
- +$148,505
- SEC form
- 4
- Accepted by SEC
- 20 Jun 2025, 17:22:31 UTC
- Prior SEC filing
- 18 Jun 2025
- Next SEC filing
- 25 Jun 2025
- Source filing
- View source filing
- Reporting owner signature
- John Sakys
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
John Sakys filed Form 4 for MESA LABORATORIES INC /CO/ (MLAB) on 20 Jun 2025.
Change
- Previous filing in this sequence was filed on 18 Jun 2025.
- Current net transaction value: +$148,505.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001197710
Primary reporting owner
Sakys John
- Relationship
- CFO
- Address
- MESA LABORATORIES, INC., 12100 W. 6TH AVENUE, LAKEWOOD
- Signature
- John Sakys
- Signature date
- 20 Jun 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MLAB
transaction
Common Stock
Options Exercise
- Transaction value
- $264,092
- Shares
- +2,840
- Change %
- +22%
- Price
- $92.99
- Shares after
- 15,705
- Date
- 18 Jun 2025
- Ownership
- Direct
MLAB
transaction
Common Stock
Tax liability
- Transaction value
- $115,587
- Shares
- -1,243
- Change %
- -7.9%
- Price
- $92.99
- Shares after
- 14,462
- Date
- 18 Jun 2025
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
MLAB
transaction
Derivative
Restricted Stock Units - 7
Options Exercise
- Transaction value
- $0
- Shares
- -2,840
- Change %
- -34%
- Price
- $0.000000
- Shares after
- 5,511
- Date
- 18 Jun 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 2,840
- Exercise price
- Footnotes
- F1, F2, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
Each RSU represents a contingent right to receive one share of the Issuer's common stock
Footnote F2
RSUs that vest 1/3 on June 18, 2025 and each of the next two anniversary dates
Footnote F3
Not Applicable