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Mesa Laboratories

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$176M +$8.24M +35,187 +5%
CCA
2
Conestoga Capital Advisors
Pennsylvania
$111M -$970K -4,141 -0.9%
Vanguard Group
3
Vanguard Group
Pennsylvania
$73.9M +$5.63M +24,014 +9%
RA
4
Royce & Associates
New York
$66.3M +$6.35M +27,120 +11%
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$59.3M -$1.02M -4,362 -2%
RIM
6
Ranger Investment Management
Texas
$44.1M +$1.32M +5,656 +3%
Kayne Anderson Rudnick Investment Management
7
Kayne Anderson Rudnick Investment Management
California
$39.6M +$1.42M +6,083 +4%
State Street
8
State Street
Massachusetts
$36.3M +$56.7K +242 +0.2%
Dimensional Fund Advisors
9
Dimensional Fund Advisors
Texas
$30.4M -$3.82M -16,316 -12%
ACM
10
Atlanta Capital Management
Georgia
$28.4M +$216K +922 +0.8%
Artisan Partners
11
Artisan Partners
Wisconsin
$22.4M +$4.68M +19,965 +29%
Northern Trust
12
Northern Trust
Illinois
$19M +$126K +540 +0.7%
Renaissance Technologies
13
Renaissance Technologies
New York
$16.4M -$3.42M -14,600 -18%
Ameriprise
14
Ameriprise
Minnesota
$16.1M -$142K -605 -0.9%
Bank of New York Mellon
15
Bank of New York Mellon
New York
$13.9M +$2.22M +9,486 +21%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$13.6M -$855K -3,649 -6%
Russell Investments Group
17
Russell Investments Group
United Kingdom
$12.8M +$3.74M +15,958 +45%
TAM
18
THB Asset Management
Connecticut
$11.1M -$2.2M -9,393 -17%
DDC
19
DF Dent & Co
Maryland
$10M +$126K +540 +1%
Principal Financial Group
20
Principal Financial Group
Iowa
$7.91M -$585K -2,496 -7%
PAMP
21
Polar Asset Management Partners
Ontario, Canada
$7.88M +$2.73M +11,666 +59%
Thrivent Financial for Lutherans
22
Thrivent Financial for Lutherans
Minnesota
$7.35M +$6.16M +26,299 +826%
MAP
23
Moody Aldrich Partners
Massachusetts
$7.25M +$6.81M +29,088 New
PI
24
Putnam Investments
Massachusetts
$6.97M +$1.78M +7,587 +37%
CM
25
Castleark Management
Illinois
$6.81M -$1.16M -4,954 -15%