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STOCK TITAN

[Form 4] Mesa Laboratories Inc Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Shannon Hall, a director of Mesa Laboratories, reported stock-based compensation transactions dated 08/15/2025. The filing shows 1,404 restricted stock units (RSUs) vested on that date and were converted into 1,404 shares of common stock with a reported acquisition price of $0. After the transaction Hall beneficially owns 4,189 shares directly. The filing also reports an additional grant of 2,784 RSUs that vest on 08/15/2026 and are recorded as 2,784 shares of underlying common stock. The Form 4 was executed under power of attorney and signed on 08/18/2025.

Shannon Hall, direttore di Mesa Laboratories, ha comunicato operazioni di compenso basato su azioni datate 15/08/2025. La comunicazione indica che 1.404 unità azionarie vincolate (RSU) sono maturate in tale data e sono state convertite in 1.404 azioni ordinarie con prezzo di acquisizione riportato pari a $0. Dopo l'operazione, Hall detiene 4.189 azioni in proprietà diretta. Il documento segnala inoltre una concessione aggiuntiva di 2.784 RSU che matureranno il 15/08/2026 e sono registrate come 2.784 azioni ordinarie sottostanti. Il Modulo 4 è stato firmato per procura in data 18/08/2025.

Shannon Hall, directora de Mesa Laboratories, informó transacciones de compensación en acciones con fecha 15/08/2025. El reporte muestra que 1.404 unidades restringidas de acciones (RSU) vencieron en esa fecha y se convirtieron en 1.404 acciones ordinarias con un precio de adquisición informado de $0. Tras la transacción, Hall posee 4.189 acciones en propiedad directa. El formulario también informa una concesión adicional de 2.784 RSU que vencerán el 15/08/2026 y se registran como 2.784 acciones ordinarias subyacentes. El Formulario 4 fue firmado por poder el 18/08/2025.

Mesa Laboratoriesì� ì´ì‚¬ Shannon Hallì� 2025ë…� 8ì›� 15ì¼ìž ì£¼ì‹ ê¸°ë°˜ ë³´ìƒ ê±°ëž˜ë¥� 보고했습니다. ë³´ê³ ì„œì— ë”°ë¥´ë©� 해당 ì¼ìžì—� 1,404ê°œì˜ ì œí•œë¶€ì£¼ì‹ë‹¨ìœ„(RSU)ê°€ 성과조건ì� 충족하여 1,404ì£¼ì˜ ë³´í†µì£¼ë¡œ 전환ë˜ì—ˆê³� ì·¨ë“ê°€ëŠ� $0ë¡� 기재ë˜ì–´ 있습니다. 거래 í›� Hallì€ ì§ì ‘ 4,189ì£�ë¥� 보유하고 있습니다. ë˜í•œ 추가ë¡� 2,784 RSUê°€ 부여ë˜ì–� 2026ë…� 8ì›� 15ì�ì—� 성과가 확정ë˜ë©° 기초 보통ì£� 2,784주로 기ë¡ë˜ì–´ 있다ê³� ë³´ê³ ë˜ì—ˆìŠµë‹ˆë‹�. Form 4ëŠ� ìœ„ìž„ìž¥ì— ë”°ë¼ ìž‘ì„±ë˜ì–´ 2025ë…� 8ì›� 18ì�ì—� 서명ë˜ì—ˆìŠµë‹ˆë‹�.

Shannon Hall, administratrice de Mesa Laboratories, a déclaré des opérations de rémunération en actions datées du 15/08/2025. Le dépôt indique que 1 404 unités d'actions restreintes (RSU) ont acquis à cette date et ont été converties en 1 404 actions ordinaires avec un prix d'acquisition déclaré de 0 $. Après la transaction, Hall détient directement 4 189 actions. Le document signale également une attribution supplémentaire de 2 784 RSU qui acquerront le 15/08/2026 et sont enregistrées comme 2 784 actions ordinaires sous-jacentes. Le formulaire 4 a été signé par procuration le 18/08/2025.

Shannon Hall, Direktorin von Mesa Laboratories, meldete aktienbasierte Vergütungs-Transaktionen mit Datum 15.08.2025. Die Einreichung zeigt, dass 1.404 Restricted Stock Units (RSUs) an diesem Datum fällig wurden und in 1.404 Stammaktien umgewandelt wurden, mit einem angegebenen Erwerbspreis von $0. Nach der Transaktion besitzt Hall direkt 4.189 Aktien. Die Meldung berichtet außerdem über eine zusätzliche Zuteilung von 2.784 RSUs, die am 15.08.2026 fällig werden und als 2.784 zugrunde liegende Stammaktien erfasst sind. Das Formular 4 wurde per Vollmacht ausgeführt und am 18.08.2025 unterschrieben.

Positive
  • Timely disclosure of insider transaction with filing executed shortly after the transaction date
  • Vested RSUs converted to shares, increasing the reporting person's direct ownership to 4,189 shares
  • No cash paid for the vested RSUs as reported (price = $0)
  • Future RSUs disclosed with clear vesting date of 08/15/2026
Negative
  • None.

Insights

TL;DR: Routine RSU vesting increased a director's direct share count by 1,404 shares; no cash paid.

The transaction reflects standard equity compensation mechanics rather than a market-moving event. The vested RSUs converted to 1,404 shares at a reported price of $0, increasing Shannon Hall's direct holdings to 4,189 shares. An additional 2,784 RSUs remain scheduled to vest on 08/15/2026, representing future dilution when settled. For investors, this is a disclosure of insider alignment via equity compensation, but the absolute size is small relative to public-company float and does not indicate a change in company operations or financial condition.

TL;DR: This is a standard director equity vesting disclosure; timing and POA signature are properly documented.

The Form 4 documents customary rollout of restricted stock units to a director with clear vesting dates and an executed filing under power of attorney. The filing shows no sale or cash purchase; vested units converted into shares and additional RSUs remain outstanding with a one-year vesting horizon. From a governance perspective the filing demonstrates routine director compensation and timely reporting, with no red flags such as accelerated dispositions or unexpected changes in control.

Shannon Hall, direttore di Mesa Laboratories, ha comunicato operazioni di compenso basato su azioni datate 15/08/2025. La comunicazione indica che 1.404 unità azionarie vincolate (RSU) sono maturate in tale data e sono state convertite in 1.404 azioni ordinarie con prezzo di acquisizione riportato pari a $0. Dopo l'operazione, Hall detiene 4.189 azioni in proprietà diretta. Il documento segnala inoltre una concessione aggiuntiva di 2.784 RSU che matureranno il 15/08/2026 e sono registrate come 2.784 azioni ordinarie sottostanti. Il Modulo 4 è stato firmato per procura in data 18/08/2025.

Shannon Hall, directora de Mesa Laboratories, informó transacciones de compensación en acciones con fecha 15/08/2025. El reporte muestra que 1.404 unidades restringidas de acciones (RSU) vencieron en esa fecha y se convirtieron en 1.404 acciones ordinarias con un precio de adquisición informado de $0. Tras la transacción, Hall posee 4.189 acciones en propiedad directa. El formulario también informa una concesión adicional de 2.784 RSU que vencerán el 15/08/2026 y se registran como 2.784 acciones ordinarias subyacentes. El Formulario 4 fue firmado por poder el 18/08/2025.

Mesa Laboratoriesì� ì´ì‚¬ Shannon Hallì� 2025ë…� 8ì›� 15ì¼ìž ì£¼ì‹ ê¸°ë°˜ ë³´ìƒ ê±°ëž˜ë¥� 보고했습니다. ë³´ê³ ì„œì— ë”°ë¥´ë©� 해당 ì¼ìžì—� 1,404ê°œì˜ ì œí•œë¶€ì£¼ì‹ë‹¨ìœ„(RSU)ê°€ 성과조건ì� 충족하여 1,404ì£¼ì˜ ë³´í†µì£¼ë¡œ 전환ë˜ì—ˆê³� ì·¨ë“ê°€ëŠ� $0ë¡� 기재ë˜ì–´ 있습니다. 거래 í›� Hallì€ ì§ì ‘ 4,189ì£�ë¥� 보유하고 있습니다. ë˜í•œ 추가ë¡� 2,784 RSUê°€ 부여ë˜ì–� 2026ë…� 8ì›� 15ì�ì—� 성과가 확정ë˜ë©° 기초 보통ì£� 2,784주로 기ë¡ë˜ì–´ 있다ê³� ë³´ê³ ë˜ì—ˆìŠµë‹ˆë‹�. Form 4ëŠ� ìœ„ìž„ìž¥ì— ë”°ë¼ ìž‘ì„±ë˜ì–´ 2025ë…� 8ì›� 18ì�ì—� 서명ë˜ì—ˆìŠµë‹ˆë‹�.

Shannon Hall, administratrice de Mesa Laboratories, a déclaré des opérations de rémunération en actions datées du 15/08/2025. Le dépôt indique que 1 404 unités d'actions restreintes (RSU) ont acquis à cette date et ont été converties en 1 404 actions ordinaires avec un prix d'acquisition déclaré de 0 $. Après la transaction, Hall détient directement 4 189 actions. Le document signale également une attribution supplémentaire de 2 784 RSU qui acquerront le 15/08/2026 et sont enregistrées comme 2 784 actions ordinaires sous-jacentes. Le formulaire 4 a été signé par procuration le 18/08/2025.

Shannon Hall, Direktorin von Mesa Laboratories, meldete aktienbasierte Vergütungs-Transaktionen mit Datum 15.08.2025. Die Einreichung zeigt, dass 1.404 Restricted Stock Units (RSUs) an diesem Datum fällig wurden und in 1.404 Stammaktien umgewandelt wurden, mit einem angegebenen Erwerbspreis von $0. Nach der Transaktion besitzt Hall direkt 4.189 Aktien. Die Meldung berichtet außerdem über eine zusätzliche Zuteilung von 2.784 RSUs, die am 15.08.2026 fällig werden und als 2.784 zugrunde liegende Stammaktien erfasst sind. Das Formular 4 wurde per Vollmacht ausgeführt und am 18.08.2025 unterschrieben.

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*
Hall Shannon

(Last) (First) (Middle)
123 CLEARFIELD DRIVE

(Street)
SAN FRANCISCO CA 94132

(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)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/15/2025
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 08/15/2025 M 1,404 A $0 4,189 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) 08/15/2025 M 1,404 (2) (3) Common Stock 1,404 $0 0 D
Restricted Stock Units - 8 (1) 08/15/2025 A 2,784 (4) (3) Common Stock 2,784 $0 2,784 D
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, 2025
3. Not Applicable
4. RSUs that vest on August 15, 2026
John Sakys under Power of Attorney by Shannon Hall 08/18/2025
** 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.

FAQ

What did Shannon Hall report on Form 4 for MLAB?

The Form 4 reports that 1,404 RSUs vested on 08/15/2025 and converted into 1,404 shares, increasing Hall's direct beneficial ownership to 4,189 shares.

Did Shannon Hall purchase shares on 08/15/2025 for MLAB?

No purchase price is reported; the vested RSUs were converted at a reported price of $0, indicating settlement from equity awards rather than a cash purchase.

Are there additional RSUs disclosed for Shannon Hall?

Yes, the filing shows 2,784 RSUs that are scheduled to vest on 08/15/2026 and correspond to 2,784 underlying shares.

What is the reporting person’s relationship to Mesa Laboratories (MLAB)?

Shannon Hall is reported as a Director of Mesa Laboratories, per the Form 4.

When was the Form 4 signed and who signed it?

The Form 4 was signed under power of attorney by John Sakys on 08/18/2025 on behalf of Shannon Hall.
Mesa Laboratories

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