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Aspen Aerogels
ASPN

Name Holding Trade Value Shares
Change 		Change in
Stake
KL
1
KIM LLC
Kansas
$293M -$82.2M -3,500,000 -22%
BlackRock
2
BlackRock
New York
$107M +$10.1M +429,479 +11%
Vanguard Group
3
Vanguard Group
Pennsylvania
$95.8M +$9.29M +395,690 +11%
OCMI
4
Oaktop Capital Management II
New Jersey
$79.7M – – –
Fidelity Investments
5
Fidelity Investments
Massachusetts
$78.2M +$21.1M +899,168 +38%
GKFF
6
George Kaiser Family Foundation
Oklahoma
$75.5M – – –
NIM
7
Needham Investment Management
New York
$54.8M -$16.5M -702,471 -23%
DCM
8
Driehaus Capital Management
Illinois
$51.4M +$28.7M +1,220,724 +130%
ECA
9
Encompass Capital Advisors
New York
$46.5M -$5.43M -231,339 -11%
HRCM
10
Hood River Capital Management
Florida
$41.8M -$36.3M -1,547,924 -47%
FCM
11
Frontier Capital Management
Massachusetts
$41.6M -$7.69M -327,428 -16%
TAM
12
Telemark Asset Management
Massachusetts
$35.6M – – –
State Street
13
State Street
Massachusetts
$33.4M +$438K +18,639 +1%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$32.8M +$5.66M +240,921 +21%
Loomis, Sayles & Company
15
Loomis, Sayles & Company
Massachusetts
$31.5M +$31M +1,319,244 New
Geode Capital Management
16
Geode Capital Management
Massachusetts
$31.3M +$3.03M +128,918 +11%
RA
17
Royce & Associates
New York
$29.6M -$9.6M -408,807 -25%
AIC
18
AWM Investment Company
New York
$28.3M -$18.5M -789,637 -40%
SM
19
Samjo Management
New York
$24.8M -$14.5M -619,275 -37%
Federated Hermes
20
Federated Hermes
Pennsylvania
$23.8M -$3.65M -155,442 -13%
UM
21
UniSuper Management
Australia
$22.8M -$3.02M -128,449 -12%
American Century Companies
22
American Century Companies
Missouri
$18.4M +$15.4M +654,350 +562%
Ameriprise
23
Ameriprise
Minnesota
$15.3M -$23.7M -1,010,573 -61%
Citadel Advisors
24
Citadel Advisors
Florida
$15M +$13.6M +578,280 +1,106%
D.E. Shaw & Co
25
D.E. Shaw & Co
New York
$12.9M +$12.7M +541,505 New
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