MESA LABORATORIES INC /CO/ - Common Stock (MLAB)

Historical Holders from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
MLAB on Nasdaq
Shares outstanding
5,508,853
Price per share
$78.50
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares as of 30 Sep 2025
4,981,287
Total reported value
$333,781,380
% of total 13F portfolios
0%
Share change
-209,810
Value change
-$17,873,769
Avg buy value change
+0%
Avg sell value change
-0%
Number of holders
138
Price from insider filings
$95.82
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of MESA LABORATORIES INC /CO/ - Common Stock (MLAB) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Conestoga Capital Advisors, LLC 11% $71,997,569 618,111 Conestoga Capital Advisors 31 Dec 2024
BlackRock, Inc. 6.9% -54% $24,158,473 -$25,762,419 378,897 -52% BlackRock, Inc. 30 Sep 2025
VANGUARD GROUP INC 5.8% $21,558,127 321,717 The Vanguard Group 30 Sep 2025
ROYCE & ASSOCIATES LP 5% -6% $31,579,825 -$1,874,047 271,118 -5.6% ROYCE & ASSOCIATES LP 31 Mar 2025
As of 30 Sep 2025, MESA LABORATORIES INC /CO/ - Common Stock (MLAB) has 138 institutional shareholders filing 13F forms. They hold 4,981,287 shares. of 5,508,853 outstanding shares (90%) .

Top 25 institutional shareholders own 71% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
Conestoga Capital Advisors, LLC 7.7% 426,457 -25% 0.46% $28,576,892
BlackRock, Inc. 7.1% 388,795 -51% 0% $26,053,151
VANGUARD GROUP INC 5.8% 321,717 -17% 0% $21,558,256
MORGAN STANLEY 4.6% 254,974 +17% 0% $17,085,848
Ranger Investment Management, L.P. 3.8% 209,700 -2.1% 0.98% $14,051,997
GENEVA CAPITAL MANAGEMENT LLC 3.5% 191,386 -3.9% 0.22% $12,824,757
Simcoe Capital Management, LLC 3.5% 190,929 1.9% $12,794,152
ROYCE & ASSOCIATES LP 2.7% 148,558 -40% 0.1% $9,954,872
JANUS HENDERSON GROUP PLC 2.6% 145,654 +29% 0% $9,760,275
Kent Lake PR LLC 2.4% 134,516 4.6% $9,013,917
MILLENNIUM MANAGEMENT LLC 2.4% 133,817 +132% 0.01% $8,967,077
GEODE CAPITAL MANAGEMENT, LLC 2.3% 127,860 -7.9% 0% $8,569,867
Select Equity Group, L.P. 2.3% 126,715 +24% 0.04% $8,491,172
DIAMOND HILL CAPITAL MANAGEMENT INC 2.2% 123,381 +218% 0.04% $8,267,761
KENNEDY CAPITAL MANAGEMENT LLC 2.2% 121,546 +34% 0.18% $8,144,797
STATE STREET CORP 2.2% 118,948 -44% 0% $7,970,705
DIMENSIONAL FUND ADVISORS LP 2.1% 116,772 +1.3% 0% $7,823,283
Boston Partners 2.1% 114,357 +2010% 0.01% $7,663,935
Russell Investments Group, Ltd. 1.8% 99,187 +25% 0.01% $6,646,552
CRAWFORD INVESTMENT COUNSEL INC 1.5% 82,467 +59% 0.09% $5,526,128
Roubaix Capital, LLC 1.4% 76,657 2.4% $5,136,786
Meros Investment Management, LP 1.4% 76,477 +109% 2.2% $5,124,724
NORTHERN TRUST CORP 1.3% 71,966 -22% 0% $4,822,441
MASON CAPITAL MANAGEMENT LLC 1.3% 70,300 0.96% $4,710,803
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.99% 54,605 -12% 0% $3,659,081

Institutional Holders of MESA LABORATORIES INC /CO/ - Common Stock (MLAB) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (% of par) Investors
2025 Q4 3,892 $305,216 +$281,665 7,850% 5
2025 Q3 4,981,287 $333,781,380 -$17,873,769 6,701% 138
2025 Q2 5,194,339 $489,420,814 +$3,151,880 9,422% 154
2025 Q1 5,170,743 $613,627,994 +$6,492,344 11,866% 151
2024 Q4 5,103,701 $673,040,010 +$27,103,138 13,187% 156
2024 Q3 4,893,266 $633,592,675 -$1,799,578 12,986% 165
2024 Q2 4,891,845 $424,757,234 -$2,285,633 8,677% 150
2024 Q1 4,866,455 $534,319,569 +$2,912,009 10,973% 154
2023 Q4 4,844,406 $507,454,547 -$6,592,200 10,477% 158
2023 Q3 4,901,538 $515,000,677 +$6,025,097 10,507% 152
2023 Q2 4,832,223 $620,943,111 -$24,453,662 12,850% 157
2023 Q1 5,023,401 $877,732,676 -$2,517,173 17,473% 157
2022 Q4 5,085,374 $846,760,262 +$70,304,664 16,621% 155
2022 Q3 4,842,604 $681,105,708 -$11,702,600 14,083.02% 159
2022 Q2 4,908,949 $1,000,923,113 +$11,794,155 20,393.83% 168
2022 Q1 4,859,392 $1,238,083,828 +$14,735,450 25,487.96% 168
2021 Q4 4,791,533 $1,570,225,457 +$6,590,466 32,808.92% 173
2021 Q3 4,766,186 $1,441,093,898 +$17,124,814 30,235.93% 171
2021 Q2 4,707,819 $1,276,759,656 +$27,150,060 27,116.98% 157
2021 Q1 4,611,973 $1,124,183,042 -$29,099,250 24,349.78% 171
2020 Q4 4,708,471 $1,349,635,260 -$19,634,872 28,664.08% 174
2020 Q3 4,781,094 $1,219,323,749 +$30,338,136 25,475.98% 152
2020 Q2 4,672,474 $1,012,950,025 +$111,113,576 21,680.05% 165
2020 Q1 4,158,000 $940,428,089 +$24,185,487 22,608.83% 143
2019 Q4 4,041,312 $1,008,233,406 +$16,005,297 24,939.78% 148
2019 Q3 3,977,286 $945,348,212 +$103,701,651 23,776.54% 143
2019 Q2 3,537,340 $864,148,089 +$173,068,954 24,433.87% 123
2019 Q1 2,846,838 $656,211,560 -$22,276,204 23,050% 123
2018 Q4 2,949,130 $614,665,135 +$51,356,210 20,839.01% 108
2018 Q3 2,706,548 $502,397,713 -$14,332,032 18,561.97% 107
2018 Q2 2,771,715 $585,084,122 -$3,040,739 21,108.09% 104
2018 Q1 2,804,404 $416,447,787 +$14,152,203 14,844.08% 89
2017 Q4 2,719,043 $338,012,086 +$9,312,744 12,429.89% 92
2017 Q3 2,635,408 $393,551,781 +$16,798,615 14,931.97% 100
2017 Q2 2,523,332 $361,587,528 +$14,529,617 14,330.77% 88
2017 Q1 2,422,041 $297,178,014 +$25,631,743 12,269.5% 88
2016 Q4 2,372,056 $291,162,725 +$6,379,435 12,274.85% 86
2016 Q3 2,320,851 $265,398,713 +$6,577,828 11,435.52% 81
2016 Q2 2,258,248 $277,761,577 -$7,663,562 12,300% 80
2016 Q1 2,323,041 $223,758,891 +$11,774,517 9,634.87% 71
2015 Q4 2,201,892 $218,647,592 +$5,482,657 9,949.89% 68
2015 Q3 2,144,389 $237,921,832 +$5,544,647 11,140% 65
2015 Q2 2,079,654 $184,950,755 +$5,369,946 8,890.04% 67
2015 Q1 2,027,979 $146,359,693 +$249,076 7,219.72% 61
2014 Q4 1,947,277 $150,544,524 +$2,767,839 7,730.86% 60
2014 Q3 1,714,464 $99,056,623 -$14,639,227 5,777.96% 58
2014 Q2 1,880,106 $157,808,722 +$3,158,272 8,395.88% 65
2014 Q1 1,837,414 $165,738,471 +$20,472,525 9,024.97% 66