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Protolabs

Name Holding Trade Value Shares
Change
Change in
Stake
BCM
1
Brown Capital Management
Maryland
$212M +$10M +155,176 +6%
Vanguard Group
2
Vanguard Group
Pennsylvania
$140M +$13.5M +209,121 +13%
RP
3
Riverbridge Partners
Minnesota
$138M +$830K +12,854 +0.7%
BFA
4
BlackRock Fund Advisors
California
$112M +$56M +867,693 +150%
JHIU
5
Janus Henderson Investors US
Colorado
$99.7M +$3.5M +54,223 +4%
Wells Fargo
6
Wells Fargo
California
$71.1M +$5.96M +92,346 +11%
ACA
7
Abdiel Capital Advisors
New York
$61.2M -$3.1K -48 -0%
WA
8
Wasatch Advisors
Utah
$55.6M +$5.46M +84,505 +13%
William Blair & Company
9
William Blair & Company
Illinois
$54.5M -$2.09M -32,316 -4%
GKIM
10
GW&K Investment Management
Massachusetts
$51.1M +$2.03M +31,416 +5%
CCA
11
Conestoga Capital Advisors
Pennsylvania
$48.4M +$8.51M +131,750 +27%
BIT
12
BlackRock Institutional Trust
California
$45M +$191K +2,958 +0.5%
SIMG
13
Stephens Investment Management Group
Texas
$44.1M +$2.73M +42,206 +8%
New York State Common Retirement Fund
14
New York State Common Retirement Fund
New York
$43.9M +$3.5M +54,134 +11%
ACM
15
Apex Capital Management
Ohio
$43.4M +$2.64M +40,900 +8%
Lord, Abbett & Co
16
Lord, Abbett & Co
New Jersey
$39.2M -$2.3M -35,617 -7%
T. Rowe Price Associates
17
T. Rowe Price Associates
Maryland
$38.9M +$6.1M +94,530 +23%
Northern Trust
18
Northern Trust
Illinois
$38.1M +$561K +8,687 +2%
State Street
19
State Street
Massachusetts
$34.1M +$4.62M +71,609 +19%
CCM
20
Crestwood Capital Management
New York
$33.5M -$4.14M -64,101 -13%
Loomis, Sayles & Company
21
Loomis, Sayles & Company
Massachusetts
$31.7M -$141K -2,183 -0.5%
KCM
22
Kornitzer Capital Management
Kansas
$31.1M -$7.2M -111,455 -22%
ACH
23
ArrowMark Colorado Holdings
Colorado
$30.6M -$6.14M -95,101 -19%
TCM
24
TimesSquare Capital Management
New York
$29.7M -$21.9M -338,650 -47%
Ameriprise
25
Ameriprise
Minnesota
$27.9M +$5.75M +89,058 +33%