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Protolabs
PRLB

Name Holding Trade Value Shares
Change 		Change in
Stake
RP
1
Riverbridge Partners
Minnesota
$75.2M +$62.2M +1,157,064 New
Fidelity Investments
2
Fidelity Investments
Massachusetts
$66.5M +$55M +1,023,612 New
NM
3
NBGE Manager
Massachusetts
$65.2M +$53.9M +1,004,290 New
Vanguard Group
4
Vanguard Group
Pennsylvania
$56.2M +$46.4M +864,672 New
Massachusetts Financial Services
5
Massachusetts Financial Services
Massachusetts
$53M +$43.8M +815,320 New
Lord, Abbett & Co
6
Lord, Abbett & Co
New Jersey
$52.5M +$43.4M +808,229 New
WA
7
Wasatch Advisors
Utah
$50.6M +$41.8M +778,217 New
AIM
8
Assured Investment Management
New York
$44.9M +$37.1M +690,692 New
CCM
9
Cupps Capital Management
Illinois
$44.3M +$36.7M +682,417 New
CIP
10
Champlain Investment Partners
Vermont
$38.8M +$32.1M +597,925 New
Capital World Investors
11
Capital World Investors
California
$38.6M +$31.9M +593,452 New
CPIM
12
Columbia Partners Investment Management
Virginia
$35.1M +$29M +539,534 New
CCA
13
Conestoga Capital Advisors
Pennsylvania
$28.4M +$23.4M +436,367 New
SIMG
14
Stephens Investment Management Group
Texas
$28.2M +$23.3M +433,860 New
BFA
15
BlackRock Fund Advisors
California
$25.4M +$21M +390,376 New
ACMM
16
Arbor Capital Management (Minnesota)
Minnesota
$23.2M +$19.1M +356,342 New
BAMCO Inc
17
BAMCO Inc
New York
$22.7M +$18.8M +350,000 New
Wells Fargo
18
Wells Fargo
California
$21.6M +$17.8M +332,229 New
WRF
19
Waddell & Reed Financial
Kansas
$21.5M +$17.8M +331,471 New
GKIM
20
GW&K Investment Management
Massachusetts
$21.4M +$17.7M +329,148 New
William Blair & Company
21
William Blair & Company
Illinois
$19.6M +$16.2M +301,995 New
Loomis, Sayles & Company
22
Loomis, Sayles & Company
Massachusetts
$19.4M +$16.1M +299,012 New
TI
23
Turner Investments
Pennsylvania
$18.8M +$15.6M +289,845 New
Artisan Partners
24
Artisan Partners
Wisconsin
$18.3M +$15.1M +282,000 New
T. Rowe Price Associates
25
T. Rowe Price Associates
Maryland
$18.3M +$15.1M +281,560 New
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