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Aspen Aerogels

Name Holding Trade Value Shares
Change
Change in
Stake
GKFF
1
George Kaiser Family Foundation
Oklahoma
$19.4M
OCMI
2
Oaktop Capital Management II
New Jersey
$17.4M +$2M +246,486 +10%
TAM
3
Telemark Asset Management
Massachusetts
$12.1M +$2.03M +250,000 +14%
NIM
4
Needham Investment Management
New York
$6.94M +$1.83M +225,350 +25%
Vanguard Group
5
Vanguard Group
Pennsylvania
$6.86M +$1.81M +223,540 +25%
CPA
6
Cowen Prime Advisors
New York
$5.02M +$71.5K +8,808 +1%
NCGI
7
Next Century Growth Investors
Minnesota
$4.7M +$296K +36,455 +5%
RA
8
Royce & Associates
New York
$4.52M -$1.65M -202,842 -22%
Renaissance Technologies
9
Renaissance Technologies
New York
$3.89M +$63.5K +7,821 +1%
HP
10
Harvey Partners
New York
$3.36M -$1.6M -197,500 -27%
BlackRock
11
BlackRock
New York
$3.06M +$79.1K +9,740 +2%
DCM
12
Driehaus Capital Management
Illinois
$2.62M +$3.46M +426,011 New
EIM
13
Essex Investment Management
Massachusetts
$2.33M -$465K -57,278 -13%
Russell Investments Group
14
Russell Investments Group
United Kingdom
$2.23M -$2.37M -291,861 -45%
Dimensional Fund Advisors
15
Dimensional Fund Advisors
Texas
$1.97M +$10.6K +1,302 +0.4%
PPA
16
Parametric Portfolio Associates
Washington
$1.46M +$1.93M +237,922 New
SAM
17
Silverback Asset Management
North Carolina
$1.37M +$1.81M +223,580 New
Millennium Management
18
Millennium Management
New York
$1.3M +$1.72M +211,778 New
GIPM
19
G2 Investment Partners Management
New York
$1.28M +$1.69M +208,653 New
WVP
20
Worth Venture Partners
New Jersey
$1.28M +$281K +34,635 +20%
EI
21
EAM Investors
California
$1.14M +$59K +7,273 +4%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$978K +$80.6K +9,934 +7%
California Public Employees Retirement System
23
California Public Employees Retirement System
California
$902K -$965K -118,922 -45%
Baird Financial Group
24
Baird Financial Group
Wisconsin
$751K +$993K +122,297 New
Susquehanna International Group
25
Susquehanna International Group
Pennsylvania
$709K +$828K +102,024 +758%