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Mesa Laboratories

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$159M +$17.7M +76,403 +13%
CCA
2
Conestoga Capital Advisors
Pennsylvania
$107M -$994K -4,300 -0.9%
Vanguard Group
3
Vanguard Group
Pennsylvania
$64.7M +$10.7M +46,381 +21%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$57.6M -$6.49M -28,069 -10%
RA
5
Royce & Associates
New York
$56.8M +$27.4M +118,355 +98%
RIM
6
Ranger Investment Management
Texas
$40.7M -$230K -993 -0.6%
Kayne Anderson Rudnick Investment Management
7
Kayne Anderson Rudnick Investment Management
California
$36.3M +$431K +1,863 +1%
State Street
8
State Street
Massachusetts
$34.5M +$1.05M +4,527 +3%
Dimensional Fund Advisors
9
Dimensional Fund Advisors
Texas
$32.9M -$38.4K -166 -0.1%
ACM
10
Atlanta Capital Management
Georgia
$26.9M +$152K +657 +0.6%
Renaissance Technologies
11
Renaissance Technologies
New York
$19.1M +$7.79M +33,700 +72%
Northern Trust
12
Northern Trust
Illinois
$18M +$1.41M +6,109 +9%
Artisan Partners
13
Artisan Partners
Wisconsin
$16.6M +$868K +3,756 +6%
Ameriprise
14
Ameriprise
Minnesota
$15.5M +$4.83M +20,905 +47%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$13.9M +$1.02M +4,398 +8%
TAM
16
THB Asset Management
Connecticut
$12.8M -$1.26M -5,435 -9%
Marshall Wace
17
Marshall Wace
United Kingdom
$11.5M +$11.2M +48,518 New
Bank of New York Mellon
18
Bank of New York Mellon
New York
$11M +$443K +1,916 +4%
Goldman Sachs
19
Goldman Sachs
New York
$10.7M +$2.43M +10,491 +30%
DDC
20
DF Dent & Co
Maryland
$9.45M +$3.17M +13,719 +53%
Russell Investments Group
21
Russell Investments Group
United Kingdom
$8.4M +$8.17M +35,352 New
Principal Financial Group
22
Principal Financial Group
Iowa
$8.14M +$736K +3,183 +10%
Luther King Capital Management (LKCM)
23
Luther King Capital Management (LKCM)
Texas
$7.73M +$28.9K +125 +0.4%
CM
24
Castleark Management
Illinois
$7.67M +$7.46M +32,275 New
Invesco
25
Invesco
Georgia
$7.45M +$759K +3,283 +12%