Conestoga Capital Advisors’s Mesa Laboratories MLAB Stock Holding History

Conestoga Capital Advisors’s Portfolio MLAB Stock Details MLAB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-426,457	Closed	-$28.6M	–	123
2025 Q3	$28.6M	Sell	426,457 -139,693	-25%	-$10.1M	0.46%	52
2025 Q2	$53.3M	Sell	566,150 -5,208	-0.9%	-$572K	0.79%	46
2025 Q1	$67.8M	Sell	571,358 -1,679	-0.3%	-$229K	1.02%	37
2024 Q4	$75.6M	Buy	573,037 +43,927	+8%	+$5.39M	1%	40
2024 Q3	$68.7M	Sell	529,110 -43,505	-8%	-$5.12M	0.93%	39
2024 Q2	$49.7M	Sell	572,615 -8,129	-1%	-$851K	0.74%	43
2024 Q1	$63.7M	Buy	580,744 +2,281	+0.4%	+$230K	0.92%	41
2023 Q4	$60.6M	Buy	578,463 +48,253	+9%	+$4.7M	0.91%	44
2023 Q3	$55.7M	Sell	530,210 -46,013	-8%	-$5.89M	0.96%	42
2023 Q2	$74M	Sell	576,223 -2,236	-0.4%	-$341K	1.18%	37
2023 Q1	$101M	Buy	578,459 +3,676	+0.6%	+$659K	1.69%	23
2022 Q4	$95.5M	Buy	574,783 +86,648	+18%	+$13.6M	1.79%	22
2022 Q3	$68.7M	Sell	488,135 -30,201	-6%	-$5.51M	1.35%	31
2022 Q2	$106M	Sell	518,336 -5,235	-1%	-$1.15M	1.92%	24
2022 Q1	$133M	Buy	523,571 +6,752	+1%	+$1.83M	2.01%	20
2021 Q4	$170M	Buy	516,819 +2,196	+0.4%	+$689K	2.21%	18
2021 Q3	$156M	Buy	514,623 +5,930	+1%	+$1.69M	2.15%	20
2021 Q2	$138M	Sell	508,693 -5,750	-1%	-$1.46M	1.99%	22
2021 Q1	$125M	Buy	514,443 +9,803	+2%	+$2.7M	1.89%	23
2020 Q4	$145M	Buy	504,640 +5,291	+1%	+$1.46M	2.31%	15
2020 Q3	$127M	Buy	499,349 +20,950	+4%	+$4.98M	2.57%	13
2020 Q2	$104M	Buy	478,399 +28,130	+6%	+$6.48M	2.26%	18
2020 Q1	$102M	Buy	450,269 +3,662	+0.8%	+$903K	2.98%	6
2019 Q4	$111M	Sell	446,607 -4,141	-0.9%	-$970K	2.68%	6
2019 Q3	$107M	Sell	450,748 -4,300	-0.9%	-$994K	2.74%	8
2019 Q2	$111M	Buy	455,048 +14,516	+3%	+$3.38M	2.78%	9
2019 Q1	$102M	Sell	440,532 -45,724	-9%	-$10.3M	2.83%	5
2018 Q4	$101M	Buy	486,256 +10,817	+2%	+$2.11M	3.23%	2
2018 Q3	$88.3M	Buy	475,439 +46,717	+11%	+$9.4M	2.25%	13
2018 Q2	$90.5M	Buy	428,722 +19,845	+5%	+$3.47M	2.91%	8
2018 Q1	$60.7M	Sell	408,877 -14,927	-4%	-$2.03M	2.32%	21
2017 Q4	$52.7M	Buy	423,804 +50,577	+14%	+$7.07M	2.02%	25
2017 Q3	$55.7M	Buy	373,227 +20,489	+6%	+$2.89M	2.47%	14
2017 Q2	$50.6M	Sell	352,738 -22,725	-6%	-$3.23M	2.63%	12
2017 Q1	$46.1M	Sell	375,463 -5,817	-2%	-$712K	2.78%	7
2016 Q4	$46.8M	Buy	381,280 +19,221	+5%	+$2.4M	3.12%	4
2016 Q3	$41.4M	Buy	362,059 +11,605	+3%	+$1.32M	2.84%	9
2016 Q2	$43.1M	Sell	350,454 -90,652	-21%	-$9.76M	3.18%	6
2016 Q1	$42.5M	Buy	441,106 +120,402	+38%	+$10.9M	2.87%	11
2015 Q4	$31.9M	Sell	320,704 -11,271	-3%	-$1.21M	2.58%	11
2015 Q3	$37M	Sell	331,975 -8,462	-2%	-$894K	2.96%	9
2015 Q2	$30.3M	Sell	340,437 -3,160	-0.9%	-$267K	2.1%	23
2015 Q1	$24.8M	Sell	343,597 -6,725	-2%	-$501K	1.7%	32
2014 Q4	$27.1M	Buy	350,322 +7,646	+2%	+$560K	1.88%	28
2014 Q3	$19.8M	Buy	342,676 +30,795	+10%	+$2.23M	1.45%	37
2014 Q2	$26.2M	Buy	311,881 +57,570	+23%	+$4.76M	1.76%	33
2014 Q1	$23M	Buy	254,311 +105,455	+71%	+$8.96M	1.45%	38
2013 Q4	$11.7M	Buy	148,856 +36,935	+33%	+$2.69M	0.79%	45
2013 Q3	$7.57M	Buy	111,921 +41,881	+60%	+$2.68M	0.65%	48
2013 Q2	$3.79M	Buy	+70,040	New	+$3.63M	0.39%	50

Other funds holding MLAB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

LPP

Long Path Partners Stamford, Connecticut $220M AUM 25.96% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

Select Equity Group New York $19.5B AUM 17.33% 1-Year Est. Return

RIM

Ranger Investment Management Dallas, Texas $1.38B AUM 24.55% 1-Year Est. Return

GCM

Geneva Capital Management Milwaukee, Wisconsin $4.71B AUM 6.32% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

KCM

Kennedy Capital Management St Louis, Missouri $4.72B AUM 36.69% 1-Year Est. Return

Conestoga Capital Advisors's MLAB Position: Q4 2025 in Review

Conestoga Capital Advisors sold out of Mesa Laboratories (MLAB) in Q4 2025, closing a stake of 426,457 shares — an estimated $28.6M sold.

Conestoga Capital Advisors first reported a position in MLAB in Q2 2013 and held it in 50 quarters. The position peaked at $170M in Q4 2021. 159 funds tracked by Wall St. Rank hold MLAB as of Q4 2025.

Conestoga Capital Advisors reported no remaining Mesa Laboratories position as of Q4 2025 after selling out during the quarter.
Conestoga Capital Advisors sold 426,457 Mesa Laboratories shares in Q4 2025, an estimated $28.6M.
Conestoga Capital Advisors first reported a position in Mesa Laboratories in Q2 2013 and held it in 50 quarters.
Conestoga Capital Advisors's Mesa Laboratories position peaked at $170M in Q4 2021.
159 funds tracked by Wall St. Rank held Mesa Laboratories as of Q4 2025.

Based on Conestoga Capital Advisors's 13F filing for Q4 2025, filed 2 Feb 2026.