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Aspen Aerogels

Name Holding Trade Value Shares
Change
Change in
Stake
SCC
1
Spring Creek Capital
Kansas
$172M
GKFF
2
George Kaiser Family Foundation
Oklahoma
$158M
OCMI
3
Oaktop Capital Management II
New Jersey
$146M
TAM
4
Telemark Asset Management
Massachusetts
$91.6M -$7.9M -150,000 -8%
Vanguard Group
5
Vanguard Group
Pennsylvania
$77.5M +$8.21M +155,733 +11%
BlackRock
6
BlackRock
New York
$77.3M +$7.6M +144,291 +10%
DCM
7
Driehaus Capital Management
Illinois
$68.5M +$6.65M +126,233 +10%
Invesco
8
Invesco
Georgia
$39.7M +$23M +436,343 +121%
Fidelity Investments
9
Fidelity Investments
Massachusetts
$36.5M +$8.32M +157,931 +27%
NIM
10
Needham Investment Management
New York
$34.6M -$14M -266,500 -28%
State Street
11
State Street
Massachusetts
$28.8M -$6M -113,856 -16%
RA
12
Royce & Associates
New York
$21M -$3.93M -74,570 -15%
Dimensional Fund Advisors
13
Dimensional Fund Advisors
Texas
$20.9M +$651K +12,351 +3%
NCGI
14
Next Century Growth Investors
Minnesota
$20.7M -$4.19M -79,447 -16%
GIPM
15
G2 Investment Partners Management
New York
$20.7M -$1.05M -19,876 -5%
ECA
16
Encompass Capital Advisors
New York
$19.9M +$21.1M +400,188 New
Geode Capital Management
17
Geode Capital Management
Massachusetts
$19.3M +$244K +4,634 +1%
EIM
18
Essex Investment Management
Massachusetts
$18.8M -$5.38M -102,175 -21%
T. Rowe Price Associates
19
T. Rowe Price Associates
Maryland
$18.7M -$4.05M -76,862 -17%
UBS AM
20
UBS AM
Illinois
$18.5M +$431K +8,188 +2%
Baird Financial Group
21
Baird Financial Group
Wisconsin
$18.5M +$24.8K +471 +0.1%
SC
22
Samjo Capital
New York
$16.4M -$1.05M -20,000 -6%
CHM
23
Collaborative Holdings Management
New York
$16M -$2.37M -45,000 -12%
CPA
24
Cowen Prime Advisors
New York
$15.6M -$3.31M -62,850 -17%
Northern Trust
25
Northern Trust
Illinois
$10.9M +$537K +10,188 +5%