MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

DF DENT & CO INC's Holding History (CIK: 0000934999)

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

Q1 2023

Shares 56,694 Value ($000) $9,906 Avg Close $176.11 Range $151.50 - $202.76

Q4 2022

Shares 51,101 Value ($000) $8,494 Avg Close $153.87 Range $112.11 - $186.80

Q3 2022

Shares 54,266 Value ($000) $7,642 Avg Close $178.97 Range $133.61 - $212.24

Q2 2022

Shares 55,469 Value ($000) $11,312 Avg Close $214.62 Range $174.88 - $258.13

Q1 2022

Shares 51,425 Value ($000) $13,107 Avg Close $266.04 Range $239.75 - $326.08

Q4 2021

Shares 60,827 Value ($000) $19,957 Avg Close $307.32 Range $285.14 - $326.54

Q3 2021

Shares 60,571 Value ($000) $18,314 Avg Close $278.11 Range $257.33 - $318.62

Q2 2021

Shares 56,263 Value ($000) $15,257 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 53,016 Value ($000) $12,909 Avg Close $268.89 Range $231.88 - $300.91

Q4 2020

Shares 49,622 Value ($000) $14,224 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 45,613 Value ($000) $11,620 Avg Close $231.93 Range $202.54 - $252.24

Q2 2020

Shares 44,509 Value ($000) $9,650 Avg Close $224.85 Range $197.47 - $262.51

Q1 2020

Shares 41,992 Value ($000) $9,494 Avg Close $240.43 Range $177.40 - $264.58

Q4 2019

Shares 40,292 Value ($000) $10,049 Avg Close $228.21 Range $201.87 - $248.54

Q3 2019

Shares 39,752 Value ($000) $9,452 Avg Close $225.06 Range $200.11 - $261.29

Q2 2019

Shares 26,033 Value ($000) $6,361 Avg Close $226.56 Range $176.37 - $256.07

Q1 2019

Shares 25,761 Value ($000) $5,938 Avg Close $219.75 Range $195.71 - $235.22

Q4 2018

Shares 7,180 Value ($000) $1,496 Avg Close $189.46 Range $162.53 - $218.23

Q3 2018

Shares 10,687 Value ($000) $1,984 Avg Close $195.39 Range $165.11 - $218.31

Q2 2018

Shares 8,528 Value ($000) $1,800 Avg Close $169.69 Range $134.32 - $207.68

Q1 2018

Shares 11,208 Value ($000) $1,664 Avg Close $132.07 Range $118.48 - $150.10

Q4 2017

Shares 10,932 Value ($000) $1,359 Avg Close $135.32 Range $118.50 - $157.82

Q3 2017

Shares 10,536 Value ($000) $1,573 Avg Close $136.33 Range $123.49 - $150.04

Q2 2017

Shares 8,494 Value ($000) $1,217 Avg Close $137.24 Range $116.47 - $164.05

Q1 2017

Shares 6,148 Value ($000) $754 Avg Close $118.09 Range $109.46 - $123.38

Q4 2016

Shares 4,281 Value ($000) $525 Avg Close $120.22 Range $105.07 - $132.08

Q3 2016

Shares 3,674 Value ($000) $420 Avg Close $109.60 Range $98.18 - $123.04

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	56,694	$9,906	$176.11	$151.50 - $202.76
Q4 2022	51,101	$8,494	$153.87	$112.11 - $186.80
Q3 2022	54,266	$7,642	$178.97	$133.61 - $212.24
Q2 2022	55,469	$11,312	$214.62	$174.88 - $258.13
Q1 2022	51,425	$13,107	$266.04	$239.75 - $326.08
Q4 2021	60,827	$19,957	$307.32	$285.14 - $326.54
Q3 2021	60,571	$18,314	$278.11	$257.33 - $318.62
Q2 2021	56,263	$15,257	$248.03	$227.68 - $268.74
Q1 2021	53,016	$12,909	$268.89	$231.88 - $300.91
Q4 2020	49,622	$14,224	$268.73	$247.92 - $285.33
Q3 2020	45,613	$11,620	$231.93	$202.54 - $252.24
Q2 2020	44,509	$9,650	$224.85	$197.47 - $262.51
Q1 2020	41,992	$9,494	$240.43	$177.40 - $264.58
Q4 2019	40,292	$10,049	$228.21	$201.87 - $248.54
Q3 2019	39,752	$9,452	$225.06	$200.11 - $261.29
Q2 2019	26,033	$6,361	$226.56	$176.37 - $256.07
Q1 2019	25,761	$5,938	$219.75	$195.71 - $235.22
Q4 2018	7,180	$1,496	$189.46	$162.53 - $218.23
Q3 2018	10,687	$1,984	$195.39	$165.11 - $218.31
Q2 2018	8,528	$1,800	$169.69	$134.32 - $207.68
Q1 2018	11,208	$1,664	$132.07	$118.48 - $150.10
Q4 2017	10,932	$1,359	$135.32	$118.50 - $157.82
Q3 2017	10,536	$1,573	$136.33	$123.49 - $150.04
Q2 2017	8,494	$1,217	$137.24	$116.47 - $164.05
Q1 2017	6,148	$754	$118.09	$109.46 - $123.38
Q4 2016	4,281	$525	$120.22	$105.07 - $132.08
Q3 2016	3,674	$420	$109.60	$98.18 - $123.04