MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

Boston Partners's Holding History (CIK: 0001386060)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 213,376 Value ($000) $16,752 Avg Close $75.96 Range $66.39 - $83.18

Q3 2025

Shares 114,357 Value ($000) $7,664 Avg Close $71.72 Range $55.21 - $103.28

Q2 2025

Shares 5,421 Value ($000) $511 Avg Close $109.15 Range $87.42 - $130.43

Q1 2025

Shares 4,663 Value ($000) $553 Avg Close $135.40 Range $114.00 - $154.03

Q4 2024

Shares 4,627 Value ($000) $610 Avg Close $121.79 Range $97.08 - $139.36

Q3 2024

Shares 8,353 Value ($000) $1,085 Avg Close $116.53 Range $85.22 - $139.82

Q2 2024

Shares 6,725 Value ($000) $584 Avg Close $103.60 Range $82.88 - $122.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	213,376	$16,752	$75.96	$66.39 - $83.18
Q3 2025	114,357	$7,664	$71.72	$55.21 - $103.28
Q2 2025	5,421	$511	$109.15	$87.42 - $130.43
Q1 2025	4,663	$553	$135.40	$114.00 - $154.03
Q4 2024	4,627	$610	$121.79	$97.08 - $139.36
Q3 2024	8,353	$1,085	$116.53	$85.22 - $139.82
Q2 2024	6,725	$584	$103.60	$82.88 - $122.43