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Quanterix
QTRX

Name Holding Trade Value Shares
Change 		Change in
Stake
CCM
1
Camber Capital Management
Massachusetts
$77.2M – – –
BlackRock
2
BlackRock
New York
$64.5M +$2.72M +152,442 +6%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$48.1M +$32.9M +1,843,382 +634%
Vanguard Group
4
Vanguard Group
Pennsylvania
$44.4M +$2.05M +114,964 +6%
PCM
5
Portolan Capital Management
Massachusetts
$31.9M +$11.5M +646,884 +84%
GGHC
6
Gilder Gagnon Howe & Co
New York
$28.6M +$6.73M +377,538 +42%
GIM
7
Granahan Investment Management
Massachusetts
$26.6M -$2.13M -119,514 -9%
PVI
8
Pura Vida Investments
New York
$24.9M -$22.5M -1,260,244 -53%
D.E. Shaw & Co
9
D.E. Shaw & Co
New York
$23.1M +$1.79M +100,660 +11%
Millennium Management
10
Millennium Management
New York
$21.7M -$8.12M -455,302 -32%
ACM
11
Ashford Capital Management
Delaware
$20.1M -$681K -38,190 -4%
FCM
12
Frontier Capital Management
Massachusetts
$18.3M -$3M -168,229 -17%
Deutsche Bank
13
Deutsche Bank
Germany
$18.2M -$3.16M -177,557 -18%
Ameriprise
14
Ameriprise
Minnesota
$17M -$4.85M -272,201 -27%
Invesco
15
Invesco
Georgia
$16.6M +$12.3M +691,628 +1,496%
State Street
16
State Street
Massachusetts
$16.5M +$672K +37,729 +5%
PIM
17
Platinum Investment Management
Australia
$16.1M -$5.17M -289,869 -29%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$16M +$673K +37,749 +6%
Dimensional Fund Advisors
19
Dimensional Fund Advisors
Texas
$15.7M +$3.34M +187,220 +37%
Baillie Gifford & Co
20
Baillie Gifford & Co
United Kingdom
$14.2M – – –
TM
21
Tikvah Management
North Carolina
$12.9M -$1.35M -76,000 -12%
BCM
22
Boone Capital Management
Georgia
$11.3M -$1.07M -60,000 -11%
KLC
23
Kent Lake Capital
Nevada
$9.02M -$5.35M -300,000 -43%
Two Sigma Advisers
24
Two Sigma Advisers
New York
$8.4M -$700K -39,300 -10%
Northern Trust
25
Northern Trust
Illinois
$7.92M +$693K +38,857 +12%
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