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Aspen Aerogels

Name Holding Trade Value Shares
Change
Change in
Stake
SCC
1
Spring Creek Capital
Kansas
$104M +$70.6M +3,462,124 New
GKFF
2
George Kaiser Family Foundation
Oklahoma
$94.8M
OCMI
3
Oaktop Capital Management II
New Jersey
$88M
TAM
4
Telemark Asset Management
Massachusetts
$60.6M
BlackRock
5
BlackRock
New York
$47.1M -$5.76M -282,176 -15%
Vanguard Group
6
Vanguard Group
Pennsylvania
$39M +$2.13M +104,143 +9%
NIM
7
Needham Investment Management
New York
$33.5M +$357K +17,500 +2%
DCM
8
Driehaus Capital Management
Illinois
$25.6M -$286K -14,008 -2%
State Street
9
State Street
Massachusetts
$22.1M +$4.36M +213,577 +41%
GIPM
10
G2 Investment Partners Management
New York
$20.6M +$2.65M +130,028 +23%
ACM
11
AIGH Capital Management
Maryland
$19.6M
NCGI
12
Next Century Growth Investors
Minnesota
$17.9M -$1.54M -75,539 -11%
RA
13
Royce & Associates
New York
$17.5M +$2.01M +98,413 +20%
EIM
14
Essex Investment Management
Massachusetts
$16.9M +$493K +24,154 +4%
Fidelity Investments
15
Fidelity Investments
Massachusetts
$15.6M +$2.04M +100,110 +24%
T. Rowe Price Associates
16
T. Rowe Price Associates
Maryland
$15.2M -$1.83M -89,683 -15%
CPA
17
Cowen Prime Advisors
New York
$13.7M +$1.42M +69,700 +18%
Millennium Management
18
Millennium Management
New York
$13.2M +$7.25M +355,277 +406%
Geode Capital Management
19
Geode Capital Management
Massachusetts
$12.2M +$495K +24,234 +6%
Dimensional Fund Advisors
20
Dimensional Fund Advisors
Texas
$11.7M -$325K -15,935 -4%
SC
21
Samjo Capital
New York
$10.8M +$326K +16,000 +5%
Baird Financial Group
22
Baird Financial Group
Wisconsin
$10.7M +$433K +21,199 +6%
HP
23
Harvey Partners
New York
$8.98M +$510K +25,000 +9%
SAM
24
Silvercrest Asset Management
New York
$8.38M +$737K +36,128 +15%
Renaissance Technologies
25
Renaissance Technologies
New York
$7.33M -$3.46M -169,800 -41%