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Ownership Document |
Schema Version: X0306 |
Document Type: 4 |
Period of Report: 9/3/19 |
Not Subject to Section 16: 0 |
Issuer: |
| Issuer CIK: 724004 |
| Issuer Name: MESA LABORATORIES INC /CO |
| Issuer Trading Symbol: MLAB |
Reporting Owner: |
| Reporting Owner ID: |
| | Owner CIK: 1197710 |
| | Owner Name: Sakys John |
| Reporting Owner Address: |
| | Owner Street 1: MESA LABORATORIES, INC. |
| | Owner Street 2: 12100 W. 6TH AVENUE |
| | Owner City: LAKEWOOD |
| | Owner State: CO |
| | Owner ZIP Code: 80228 |
| | Owner State Description: |
| Reporting Owner Relationship: |
| | Is Director? No |
| | Is Officer? Yes |
| | Is Ten Percent Owner? No |
| | Is Other? No |
| | Officer Title: CFO |
Non-Derivative Table: |
| Non-Derivative Transaction: |
| | Security Title: |
| | | Value: Common Stock |
| | Transaction Date: |
| | | Value: 9/3/19 |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: M |
| | | Equity Swap Involved? No |
| | Transaction Timeliness: |
| | | Value: |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 1,000 |
| | | Transaction Price Per Share: |
| Value: 48.72 |
| | | Transaction Acquired-Disposed Code: |
| Value: A |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 3,500 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
Derivative Table: |
| Derivative Transaction: |
| | Security Title: |
| | | Value: Non Qualified Stock Option |
| | Conversion or Exercise Price: |
| | | Value: 48.72 |
| | Transaction Date: |
| | | Value: 9/3/19 |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: X |
| | | Equity Swap Involved? No |
| | | Footnote ID: F1 |
| | Transaction Timeliness: |
| | | Value: |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 1,000 |
| | | Transaction Price Per Share: |
| Value: 0 |
| | | Transaction Acquired-Disposed Code: |
| Value: D |
| | Exercise Date: |
| | | Value: 10/29/13 |
| | | Footnote ID: F2 |
| | Expiration Date: |
| | | Value: 10/29/22 |
| | Underlying Security: |
| | | Underlying Security Title: |
| Value: Common Stock |
| | | Underlying Security Shares: |
| Value: 1,000 |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 35,987 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
Footnotes: |
| Footnote - F1: Represents a "cash exercise" of stock options pursuant to which the reporting person paid to the Issuer the exercise price of such options in cash. No shares were sold by the reporting person in connection with this transaction. |
| Footnote - F2: 1/4 exercisable on each of the first four anniversary dates |
Owner Signature: |
| Signature Name: John Sakys |
| Signature Date: 9/3/19 |