MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2025

Shares 321,899 Value ($000) $25,269 Avg Close $75.96 Range $66.39 - $83.18

Q3 2025

Shares 321,717 Value ($000) $21,558 Avg Close $71.72 Range $55.21 - $103.28

Q2 2025

Shares 389,409 Value ($000) $36,690 Avg Close $109.15 Range $87.42 - $130.43

Q1 2025

Shares 384,613 Value ($000) $45,638 Avg Close $135.40 Range $114.00 - $154.03

Q4 2024

Shares 382,856 Value ($000) $50,487 Avg Close $121.79 Range $97.08 - $139.36

Q3 2024

Shares 377,582 Value ($000) $49,033 Avg Close $116.53 Range $85.22 - $139.82

Q2 2024

Shares 366,408 Value ($000) $31,793 Avg Close $103.60 Range $82.88 - $122.43

Q1 2024

Shares 373,397 Value ($000) $40,973 Avg Close $99.55 Range $87.54 - $114.48

Q4 2023

Shares 370,278 Value ($000) $38,794 Avg Close $96.12 Range $81.68 - $118.22

Q3 2023

Shares 363,004 Value ($000) $38,141 Avg Close $126.18 Range $101.78 - $143.38

Q2 2023

Shares 360,728 Value ($000) $46,354 Avg Close $149.94 Range $122.07 - $184.65

Q1 2023

Shares 357,188 Value ($000) $62,411 Avg Close $176.11 Range $151.50 - $202.76

Q4 2022

Shares 359,293 Value ($000) $59,718 Avg Close $153.87 Range $112.11 - $186.80

Q3 2022

Shares 349,027 Value ($000) $49,153 Avg Close $178.97 Range $133.61 - $212.24

Q2 2022

Shares 352,197 Value ($000) $71,827 Avg Close $214.62 Range $174.88 - $258.13

Q1 2022

Shares 341,492 Value ($000) $87,040 Avg Close $266.04 Range $239.75 - $326.08

Q4 2021

Shares 337,028 Value ($000) $110,575 Avg Close $307.32 Range $285.14 - $326.54

Q3 2021

Shares 322,783 Value ($000) $97,597 Avg Close $278.11 Range $257.33 - $318.62

Q2 2021

Shares 316,045 Value ($000) $85,701 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 317,600 Value ($000) $77,335 Avg Close $268.89 Range $231.88 - $300.91

Q4 2020

Shares 305,786 Value ($000) $87,650 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 301,297 Value ($000) $76,758 Avg Close $231.93 Range $202.54 - $252.24

Q2 2020

Shares 293,614 Value ($000) $63,655 Avg Close $224.85 Range $197.47 - $262.51

Q1 2020

Shares 281,231 Value ($000) $63,583 Avg Close $240.43 Range $177.40 - $264.58

Q4 2019

Shares 296,237 Value ($000) $73,882 Avg Close $228.21 Range $201.87 - $248.54

Q3 2019

Shares 272,223 Value ($000) $64,727 Avg Close $225.06 Range $200.11 - $261.29

Q2 2019

Shares 225,842 Value ($000) $55,183 Avg Close $226.56 Range $176.37 - $256.07

Q1 2019

Shares 176,191 Value ($000) $40,612 Avg Close $219.75 Range $195.71 - $235.22

Q4 2018

Shares 173,464 Value ($000) $36,148 Avg Close $189.46 Range $162.53 - $218.23

Q3 2018

Shares 161,627 Value ($000) $30,000 Avg Close $195.39 Range $165.11 - $218.31

Q2 2018

Shares 158,318 Value ($000) $33,417 Avg Close $169.69 Range $134.32 - $207.68

Q1 2018

Shares 155,093 Value ($000) $23,022 Avg Close $132.07 Range $118.48 - $150.10

Q4 2017

Shares 154,962 Value ($000) $19,262 Avg Close $135.32 Range $118.50 - $157.82

Q3 2017

Shares 150,730 Value ($000) $22,506 Avg Close $136.33 Range $123.49 - $150.04

Q2 2017

Shares 145,161 Value ($000) $20,804 Avg Close $137.24 Range $116.47 - $164.05

Q1 2017

Shares 131,898 Value ($000) $16,184 Avg Close $118.09 Range $109.46 - $123.38

Q4 2016

Shares 146,603 Value ($000) $17,996 Avg Close $120.22 Range $105.07 - $132.08

Q3 2016

Shares 138,571 Value ($000) $15,847 Avg Close $109.60 Range $98.18 - $123.04

Q2 2016

Shares 130,267 Value ($000) $16,023 Avg Close $103.44 Range $88.28 - $126.77

Q1 2016

Shares 121,370 Value ($000) $11,694 Avg Close $86.42 Range $73.77 - $101.55

Q4 2015

Shares 111,072 Value ($000) $11,052 Avg Close $102.36 Range $85.94 - $114.35

Q3 2015

Shares 108,724 Value ($000) $12,112 Avg Close $100.98 Range $82.67 - $120.40

Q2 2015

Shares 104,764 Value ($000) $9,313 Avg Close $80.63 Range $64.55 - $88.64

Q1 2015

Shares 103,675 Value ($000) $7,485 Avg Close $70.91 Range $65.28 - $76.95

Q4 2014

Shares 102,809 Value ($000) $7,948 Avg Close $69.59 Range $54.13 - $80.65

Q3 2014

Shares 102,537 Value ($000) $5,925 Avg Close $68.77 Range $51.84 - $82.01

Q2 2014

Shares 100,629 Value ($000) $8,449 Avg Close $78.24 Range $70.63 - $86.28

Q1 2014

Shares 98,033 Value ($000) $8,847 Avg Close $80.28 Range $67.42 - $90.75

Q4 2013

Shares 66,100 Value ($000) $5,194 Avg Close $68.72 Range $61.20 - $78.13

Q3 2013

Shares 61,305 Value ($000) $4,145 Avg Close $60.15 Range $50.50 - $68.22

Q2 2013

Shares 45,880 Value ($000) $2,483 Avg Close $48.72 Range $43.39 - $52.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	321,899	$25,269	$75.96	$66.39 - $83.18
Q3 2025	321,717	$21,558	$71.72	$55.21 - $103.28
Q2 2025	389,409	$36,690	$109.15	$87.42 - $130.43
Q1 2025	384,613	$45,638	$135.40	$114.00 - $154.03
Q4 2024	382,856	$50,487	$121.79	$97.08 - $139.36
Q3 2024	377,582	$49,033	$116.53	$85.22 - $139.82
Q2 2024	366,408	$31,793	$103.60	$82.88 - $122.43
Q1 2024	373,397	$40,973	$99.55	$87.54 - $114.48
Q4 2023	370,278	$38,794	$96.12	$81.68 - $118.22
Q3 2023	363,004	$38,141	$126.18	$101.78 - $143.38
Q2 2023	360,728	$46,354	$149.94	$122.07 - $184.65
Q1 2023	357,188	$62,411	$176.11	$151.50 - $202.76
Q4 2022	359,293	$59,718	$153.87	$112.11 - $186.80
Q3 2022	349,027	$49,153	$178.97	$133.61 - $212.24
Q2 2022	352,197	$71,827	$214.62	$174.88 - $258.13
Q1 2022	341,492	$87,040	$266.04	$239.75 - $326.08
Q4 2021	337,028	$110,575	$307.32	$285.14 - $326.54
Q3 2021	322,783	$97,597	$278.11	$257.33 - $318.62
Q2 2021	316,045	$85,701	$248.03	$227.68 - $268.74
Q1 2021	317,600	$77,335	$268.89	$231.88 - $300.91
Q4 2020	305,786	$87,650	$268.73	$247.92 - $285.33
Q3 2020	301,297	$76,758	$231.93	$202.54 - $252.24
Q2 2020	293,614	$63,655	$224.85	$197.47 - $262.51
Q1 2020	281,231	$63,583	$240.43	$177.40 - $264.58
Q4 2019	296,237	$73,882	$228.21	$201.87 - $248.54
Q3 2019	272,223	$64,727	$225.06	$200.11 - $261.29
Q2 2019	225,842	$55,183	$226.56	$176.37 - $256.07
Q1 2019	176,191	$40,612	$219.75	$195.71 - $235.22
Q4 2018	173,464	$36,148	$189.46	$162.53 - $218.23
Q3 2018	161,627	$30,000	$195.39	$165.11 - $218.31
Q2 2018	158,318	$33,417	$169.69	$134.32 - $207.68
Q1 2018	155,093	$23,022	$132.07	$118.48 - $150.10
Q4 2017	154,962	$19,262	$135.32	$118.50 - $157.82
Q3 2017	150,730	$22,506	$136.33	$123.49 - $150.04
Q2 2017	145,161	$20,804	$137.24	$116.47 - $164.05
Q1 2017	131,898	$16,184	$118.09	$109.46 - $123.38
Q4 2016	146,603	$17,996	$120.22	$105.07 - $132.08
Q3 2016	138,571	$15,847	$109.60	$98.18 - $123.04
Q2 2016	130,267	$16,023	$103.44	$88.28 - $126.77
Q1 2016	121,370	$11,694	$86.42	$73.77 - $101.55
Q4 2015	111,072	$11,052	$102.36	$85.94 - $114.35
Q3 2015	108,724	$12,112	$100.98	$82.67 - $120.40
Q2 2015	104,764	$9,313	$80.63	$64.55 - $88.64
Q1 2015	103,675	$7,485	$70.91	$65.28 - $76.95
Q4 2014	102,809	$7,948	$69.59	$54.13 - $80.65
Q3 2014	102,537	$5,925	$68.77	$51.84 - $82.01
Q2 2014	100,629	$8,449	$78.24	$70.63 - $86.28
Q1 2014	98,033	$8,847	$80.28	$67.42 - $90.75
Q4 2013	66,100	$5,194	$68.72	$61.20 - $78.13
Q3 2013	61,305	$4,145	$60.15	$50.50 - $68.22
Q2 2013	45,880	$2,483	$48.72	$43.39 - $52.49