MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 65,651 Value ($000) $5,154 Avg Close $75.96 Range $66.39 - $83.18

Q3 2025

Shares 71,966 Value ($000) $4,822 Avg Close $71.72 Range $55.21 - $103.28

Q2 2025

Shares 92,732 Value ($000) $8,737 Avg Close $109.15 Range $87.42 - $130.43

Q1 2025

Shares 82,444 Value ($000) $9,783 Avg Close $135.40 Range $114.00 - $154.03

Q4 2024

Shares 93,789 Value ($000) $12,368 Avg Close $121.79 Range $97.08 - $139.36

Q3 2024

Shares 91,964 Value ($000) $11,942 Avg Close $116.53 Range $85.22 - $139.82

Q2 2024

Shares 90,348 Value ($000) $7,839 Avg Close $103.60 Range $82.88 - $122.43

Q1 2024

Shares 92,033 Value ($000) $10,099 Avg Close $99.55 Range $87.54 - $114.48

Q4 2023

Shares 81,518 Value ($000) $8,541 Avg Close $96.12 Range $81.68 - $118.22

Q3 2023

Shares 94,903 Value ($000) $9,971 Avg Close $126.18 Range $101.78 - $143.38

Q2 2023

Shares 92,993 Value ($000) $11,950 Avg Close $149.94 Range $122.07 - $184.65

Q1 2023

Shares 86,780 Value ($000) $15,163 Avg Close $176.11 Range $151.50 - $202.76

Q4 2022

Shares 84,489 Value ($000) $14,043 Avg Close $153.87 Range $112.11 - $186.80

Q3 2022

Shares 84,468 Value ($000) $11,896 Avg Close $178.97 Range $133.61 - $212.24

Q2 2022

Shares 89,526 Value ($000) $18,257 Avg Close $214.62 Range $174.88 - $258.13

Q1 2022

Shares 83,017 Value ($000) $21,160 Avg Close $266.04 Range $239.75 - $326.08

Q4 2021

Shares 81,882 Value ($000) $26,865 Avg Close $307.32 Range $285.14 - $326.54

Q3 2021

Shares 83,425 Value ($000) $25,224 Avg Close $278.11 Range $257.33 - $318.62

Q2 2021

Shares 89,144 Value ($000) $24,173 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 77,515 Value ($000) $18,875 Avg Close $268.89 Range $231.88 - $300.91

Q4 2020

Shares 77,035 Value ($000) $22,082 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 79,966 Value ($000) $20,372 Avg Close $231.93 Range $202.54 - $252.24

Q2 2020

Shares 74,832 Value ($000) $16,224 Avg Close $224.85 Range $197.47 - $262.51

Q1 2020

Shares 74,545 Value ($000) $16,853 Avg Close $240.43 Range $177.40 - $264.58

Q4 2019

Shares 76,087 Value ($000) $18,976 Avg Close $228.21 Range $201.87 - $248.54

Q3 2019

Shares 75,547 Value ($000) $17,963 Avg Close $225.06 Range $200.11 - $261.29

Q2 2019

Shares 69,438 Value ($000) $16,966 Avg Close $226.56 Range $176.37 - $256.07

Q1 2019

Shares 65,533 Value ($000) $15,105 Avg Close $219.75 Range $195.71 - $235.22

Q4 2018

Shares 58,994 Value ($000) $12,293 Avg Close $189.46 Range $162.53 - $218.23

Q3 2018

Shares 49,230 Value ($000) $9,138 Avg Close $195.39 Range $165.11 - $218.31

Q2 2018

Shares 48,167 Value ($000) $10,167 Avg Close $169.69 Range $134.32 - $207.68

Q1 2018

Shares 44,945 Value ($000) $6,672 Avg Close $132.07 Range $118.48 - $150.10

Q4 2017

Shares 45,218 Value ($000) $5,621 Avg Close $135.32 Range $118.50 - $157.82

Q3 2017

Shares 45,450 Value ($000) $6,786 Avg Close $136.33 Range $123.49 - $150.04

Q2 2017

Shares 45,273 Value ($000) $6,488 Avg Close $137.24 Range $116.47 - $164.05

Q1 2017

Shares 42,430 Value ($000) $5,207 Avg Close $118.09 Range $109.46 - $123.38

Q4 2016

Shares 42,429 Value ($000) $5,208 Avg Close $120.22 Range $105.07 - $132.08

Q3 2016

Shares 39,136 Value ($000) $4,475 Avg Close $109.60 Range $98.18 - $123.04

Q2 2016

Shares 38,927 Value ($000) $4,788 Avg Close $103.44 Range $88.28 - $126.77

Q1 2016

Shares 37,599 Value ($000) $3,623 Avg Close $86.42 Range $73.77 - $101.55

Q4 2015

Shares 37,457 Value ($000) $3,727 Avg Close $102.36 Range $85.94 - $114.35

Q3 2015

Shares 36,305 Value ($000) $4,045 Avg Close $100.98 Range $82.67 - $120.40

Q2 2015

Shares 35,958 Value ($000) $3,196 Avg Close $80.63 Range $64.55 - $88.64

Q1 2015

Shares 36,734 Value ($000) $2,653 Avg Close $70.91 Range $65.28 - $76.95

Q4 2014

Shares 36,792 Value ($000) $2,844 Avg Close $69.59 Range $54.13 - $80.65

Q3 2014

Shares 36,860 Value ($000) $2,130 Avg Close $68.77 Range $51.84 - $82.01

Q2 2014

Shares 36,042 Value ($000) $3,026 Avg Close $78.24 Range $70.63 - $86.28

Q1 2014

Shares 40,056 Value ($000) $3,615 Avg Close $80.28 Range $67.42 - $90.75

Q4 2013

Shares 42,726 Value ($000) $3,358 Avg Close $68.72 Range $61.20 - $78.13

Q3 2013

Shares 42,395 Value ($000) $2,867 Avg Close $60.15 Range $50.50 - $68.22

Q2 2013

Shares 41,379 Value ($000) $2,240 Avg Close $48.72 Range $43.39 - $52.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	65,651	$5,154	$75.96	$66.39 - $83.18
Q3 2025	71,966	$4,822	$71.72	$55.21 - $103.28
Q2 2025	92,732	$8,737	$109.15	$87.42 - $130.43
Q1 2025	82,444	$9,783	$135.40	$114.00 - $154.03
Q4 2024	93,789	$12,368	$121.79	$97.08 - $139.36
Q3 2024	91,964	$11,942	$116.53	$85.22 - $139.82
Q2 2024	90,348	$7,839	$103.60	$82.88 - $122.43
Q1 2024	92,033	$10,099	$99.55	$87.54 - $114.48
Q4 2023	81,518	$8,541	$96.12	$81.68 - $118.22
Q3 2023	94,903	$9,971	$126.18	$101.78 - $143.38
Q2 2023	92,993	$11,950	$149.94	$122.07 - $184.65
Q1 2023	86,780	$15,163	$176.11	$151.50 - $202.76
Q4 2022	84,489	$14,043	$153.87	$112.11 - $186.80
Q3 2022	84,468	$11,896	$178.97	$133.61 - $212.24
Q2 2022	89,526	$18,257	$214.62	$174.88 - $258.13
Q1 2022	83,017	$21,160	$266.04	$239.75 - $326.08
Q4 2021	81,882	$26,865	$307.32	$285.14 - $326.54
Q3 2021	83,425	$25,224	$278.11	$257.33 - $318.62
Q2 2021	89,144	$24,173	$248.03	$227.68 - $268.74
Q1 2021	77,515	$18,875	$268.89	$231.88 - $300.91
Q4 2020	77,035	$22,082	$268.73	$247.92 - $285.33
Q3 2020	79,966	$20,372	$231.93	$202.54 - $252.24
Q2 2020	74,832	$16,224	$224.85	$197.47 - $262.51
Q1 2020	74,545	$16,853	$240.43	$177.40 - $264.58
Q4 2019	76,087	$18,976	$228.21	$201.87 - $248.54
Q3 2019	75,547	$17,963	$225.06	$200.11 - $261.29
Q2 2019	69,438	$16,966	$226.56	$176.37 - $256.07
Q1 2019	65,533	$15,105	$219.75	$195.71 - $235.22
Q4 2018	58,994	$12,293	$189.46	$162.53 - $218.23
Q3 2018	49,230	$9,138	$195.39	$165.11 - $218.31
Q2 2018	48,167	$10,167	$169.69	$134.32 - $207.68
Q1 2018	44,945	$6,672	$132.07	$118.48 - $150.10
Q4 2017	45,218	$5,621	$135.32	$118.50 - $157.82
Q3 2017	45,450	$6,786	$136.33	$123.49 - $150.04
Q2 2017	45,273	$6,488	$137.24	$116.47 - $164.05
Q1 2017	42,430	$5,207	$118.09	$109.46 - $123.38
Q4 2016	42,429	$5,208	$120.22	$105.07 - $132.08
Q3 2016	39,136	$4,475	$109.60	$98.18 - $123.04
Q2 2016	38,927	$4,788	$103.44	$88.28 - $126.77
Q1 2016	37,599	$3,623	$86.42	$73.77 - $101.55
Q4 2015	37,457	$3,727	$102.36	$85.94 - $114.35
Q3 2015	36,305	$4,045	$100.98	$82.67 - $120.40
Q2 2015	35,958	$3,196	$80.63	$64.55 - $88.64
Q1 2015	36,734	$2,653	$70.91	$65.28 - $76.95
Q4 2014	36,792	$2,844	$69.59	$54.13 - $80.65
Q3 2014	36,860	$2,130	$68.77	$51.84 - $82.01
Q2 2014	36,042	$3,026	$78.24	$70.63 - $86.28
Q1 2014	40,056	$3,615	$80.28	$67.42 - $90.75
Q4 2013	42,726	$3,358	$68.72	$61.20 - $78.13
Q3 2013	42,395	$2,867	$60.15	$50.50 - $68.22
Q2 2013	41,379	$2,240	$48.72	$43.39 - $52.49