Aspen Aerogels Ownership | Who Owns Aspen Aerogels?


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Aspen Aerogels Ownership Summary


Aspen Aerogels is owned by 94.02% institutional investors, 1.92% insiders, and 4.06% retail investors. Kim is the largest institutional shareholder, holding 16.10% of ASPN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.14% of its assets in Aspen Aerogels shares.

ASPN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockAspen Aerogels94.02%1.92%4.06%
SectorIndustrials Stocks 50.81%11.74%37.45%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Kim12.28M16.10%$145.89M
Blackrock funding, inc. /de5.00M6.56%$59.41M
Vanguard group4.36M5.72%$51.80M
Oaktop capital management ii3.74M4.90%$44.44M
George kaiser family foundation3.17M4.15%$37.63M
Needham investment management2.39M3.13%$28.39M
Dimensional fund advisors lp2.02M2.65%$23.98M
Telemark asset management1.89M2.48%$22.48M
Millennium management1.62M2.13%$19.27M
State street1.49M1.95%$17.67M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Kim12.28M18.39%$145.89M
Oaktop capital management ii3.74M5.55%$44.44M
George kaiser family foundation3.17M5.54%$37.63M
Samjo management874.65K3.92%$10.39M
Firsthand capital management105.00K2.60%$1.25M
Telemark asset management1.89M2.24%$22.48M
Needham investment management2.39M2.19%$28.39M
Dendur capital lp775.00K0.95%$9.21M
Sargent investment group371.05K0.77%$4.72M
Prescott group capital management431.50K0.70%$5.13M

Top Buyers

HolderShares% AssetsChange
Millennium management1.62M0.01%1.59M
Cubist systematic strategies1.39M0.10%1.39M
Point72 asset management1.10M0.03%1.10M
Alyeska investment group800.00K0.04%800.00K
Dendur capital lp775.00K0.95%775.00K

Top Sellers

HolderShares% AssetsChange
Fmr1.23M0.00%-2.82M
Driehaus capital management---2.55M
Encompass capital advisors---1.70M
Loomis sayles & co l p---1.62M
Dld asset management, lp104.25K0.15%-556.06K

New Positions

HolderShares% AssetsChangeValue
Point72 asset management1.10M0.03%1.10M$13.12M
Alyeska investment group800.00K0.04%800.00K$9.50M
Dendur capital lp775.00K0.95%775.00K$9.21M
M&g511.31K0.04%511.31K$6.14M
Castleknight management lp445.60K0.15%445.60K$5.29M

Sold Out

HolderChange
Tfc financial management-2.00
Creekmur asset management-3.00
Capital performance advisors llp-15.00
Parallel advisors-22.00
C m bidwell & associates-22.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2024248-6.06%71,699,8452.19%941.11%1548.45%46-30.30%
Sep 30, 202426210.55%70,144,949-0.59%911.06%1403.70%664.76%
Jun 30, 202423732.40%70,558,047-5.64%930.96%13570.89%6321.15%
Mar 31, 2024179-1.65%74,778,270-0.17%980.85%79-8.14%524.00%
Dec 31, 20231827.06%74,905,28110.52%1071.13%8622.86%50-15.25%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv2.57M3.14%-
Vanguard US Total Market Shares ETF2.41M2.94%2.16K
iShares Russell 2000 ETF1.62M1.98%-14.08K
Needham Aggressive Growth Retail1.35M1.65%67.50K
Vanguard Institutional Extnd Mkt Idx Tr1.04M1.27%1.56K
Loomis Sayles Small Cap Growth Instl918.28K1.12%-9.94K
American Century U.S. Small Cap Growth791.75K0.96%-185.46K
American Century Small Cap Growth Inv791.75K0.96%-185.46K
UBS: US Equity Small Cap Growth718.49K0.88%718.49K
Fidelity Small Cap Growth656.38K0.80%-

Recent Insider Transactions


DateNameRoleActivityValue
Sep 30, 2024Young Donald R President and CEOSell$1.90M
Aug 26, 2024RODRIGUEZ RICARDO C. CFO & TreasurerSell$33.78K
Aug 26, 2024RODRIGUEZ RICARDO C. CFO & TreasurerSell$212.94K
Aug 26, 2024RODRIGUEZ RICARDO C. CFO & TreasurerSell$3.07K
Aug 26, 2024RODRIGUEZ RICARDO C. CFO & TreasurerSell$728.60K

Insider Transactions Trends


DateBuySell
2025 Q1--
2024 Q4--
2024 Q3-6
2024 Q2-10
2024 Q1--

ASPN Ownership FAQ


Who owns the most shares of Aspen Aerogels?

Aspen Aerogels’s largest shareholders are Kim (12.28M shares, 16.10%), Blackrock funding, inc. /de (5M shares, 6.56%), and Vanguard group (4.36M shares, 5.72%). Together, they hold 28.38% of Aspen Aerogels’s total shares outstanding.

Does Blackrock own Aspen Aerogels?

BlackRock is not among the top 10 institutional shareholders of Aspen Aerogels.

Who is Aspen Aerogels’s biggest shareholder by percentage of total assets invested?

Kim is Aspen Aerogels’s biggest shareholder by percentage of total assets invested, with 18.39% of its assets in 12.28M Aspen Aerogels shares, valued at 145.89M$.

Who is the top mutual fund holder of Aspen Aerogels shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Aspen Aerogels shares, with 3.14% of its total shares outstanding invested in 2.57M Aspen Aerogels shares.

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