CRENNEN LYNDSEY ELIZABETH enters MESA LABORATORIES INC /CO/ with 1.86K shares plus derivative instruments

Holding both equity and derivatives at entry signals strong long-term conviction in the company.

Direct Derivatives

CRENNEN LYNDSEY ELIZABETH

Filed: 6/16/2026ACC: 0000724004-26-000059

InsiderCRENNEN LYNDSEY ELIZABETHCIK 2140665

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IssuerMESA LABORATORIES INC /CO/CIK 724004

Officer· Chief Accounting Officer

Since Jun 2026

1.86K

Baseline shares

100% direct

1.86K

Direct ownership

1 position

6.61K

Derivative underlying

9 instruments

Security positions

All direct

Non-Derivative Holdings1

Common Stock

Direct

Shares owned1.86K

Total

1.86K direct1.86K

Security Title	Shares Owned	Ownership Type
Common Stock	1.86K	Direct
Total	1.86K	1.86K direct

Derivative Holdings9

Restricted Stock Units 6

Direct

Underlying security

Common Stock

Underlying shares

1.44K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

NSO -1

Direct

Underlying security

Common Stock

Underlying shares

369.00

Shares owned

N/A

Exercise price

268.85

Expiration

—

Exercise window

—

Restricted Stock Units - 5

Direct

Underlying security

Common Stock

Underlying shares

1.80K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

542.00

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Unit - 2

Direct

Underlying security

Common Stock

Underlying shares

465.00

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

NSO - 3

Direct

Underlying security

Common Stock

Underlying shares

646.00

Shares owned

N/A

Exercise price

131.67

Expiration

—

Exercise window

—

Restricted Stock Units - 3

Direct

Underlying security

Common Stock

Underlying shares

735.00

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

NSO - 2

Direct

Underlying security

Common Stock

Underlying shares

488.00

Shares owned

N/A

Exercise price

185.57

Expiration

—

Exercise window

—

Restricted Stock Unit - 1

Direct

Underlying security

Common Stock

Underlying shares

125.00

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

6.61K

Owned

0.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units 6 Direct	Common Stock	0	—	—	1.44K	N/A
NSO -1 Direct	Common Stock	268.85	—	—	369.00	N/A
Restricted Stock Units - 5 Direct	Common Stock	0	—	—	1.80K	N/A
Restricted Stock Units Direct	Common Stock	0	—	—	542.00	N/A
Restricted Stock Unit - 2 Direct	Common Stock	0	—	—	465.00	N/A
NSO - 3 Direct	Common Stock	131.67	—	—	646.00	N/A
Restricted Stock Units - 3 Direct	Common Stock	0	—	—	735.00	N/A
NSO - 2 Direct	Common Stock	185.57	—	—	488.00	N/A
Restricted Stock Unit - 1 Direct	Common Stock	0	—	—	125.00	N/A
Total					6.61K	0.00