Shannon Hall

CIK: 0001621222

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)3 (60.0%)

Derivative conversions

Awards (A)2 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MLAB

MESA LABORATORIES INC /CO/

Director

Discretionary Trading P&L

Holdings

Transaction History (5 total)

MLAB
MESA LABORATORIES INC /CO/
Sep 9, 2026
Award(A)
Restricted Stock Units - 9
Direct
1.8K shares-
MLAB
MESA LABORATORIES INC /CO/
Aug 15, 2026
Exercise(M)
Direct
2.8K shares-
MLAB
MESA LABORATORIES INC /CO/
Aug 15, 2025
Exercise(M)
Direct
1.4K shares-
MLAB
MESA LABORATORIES INC /CO/
Aug 15, 2025
Award(A)
Restricted Stock Units - 8
Direct
2.8K shares-
MLAB
MESA LABORATORIES INC /CO/
Sep 1, 2024
Exercise(M)
Direct
1.1K shares-

		Type	Shares	Price		Ownership
Sep 9, 2026	MLAB MESA LABORATORIES INC /CO/	Award(A) Restricted Stock Units - 9	1,774	-	-	Direct
Aug 15, 2026	MLAB MESA LABORATORIES INC /CO/	Exercise(M)	2,784	-	$0	Direct
Aug 15, 2025	MLAB MESA LABORATORIES INC /CO/	Exercise(M)	1,404	-	-	Direct
Aug 15, 2025	MLAB MESA LABORATORIES INC /CO/	Award(A) Restricted Stock Units - 8	2,784	-	-	Direct
Sep 1, 2024	MLAB MESA LABORATORIES INC /CO/	Exercise(M)	1,074	-	$0	Direct

1-5 of 5 transactions

About Hall Shannon

Hall Shannon (SEC CIK 0001621222) files insider reports with the SEC as Director of MESA LABORATORIES INC /CO/ (MLAB).

Signal8 holds 4 ownership filings by Hall Shannon, all Form 4s, filed between Sep 6, 2024 and Sep 11, 2026. Those filings report 5 transactions, from Sep 1, 2024 to Sep 9, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Hall Shannon's filings is in SAN FRANCISCO, CA.

Recent filings by Hall Shannon

Sep 9, 2026: Grant or award of MLAB derivative securities (Form 4, code A).
Aug 15, 2026: Option exercise of MLAB shares (Form 4, code M).
Aug 15, 2025: Option exercise of MLAB shares (Form 4, code M).
Aug 15, 2025: Grant or award of MLAB derivative securities (Form 4, code A).
Sep 1, 2024: Option exercise of MLAB shares (Form 4, code M).

Other insiders filing for MESA LABORATORIES INC /CO/ (MLAB)

How to read Form 4 transaction codes