ASPEN AEROGELS INC (ASPN) is held by 97 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q2 2026.

Are institutions buying or selling ASPN?

In Q2 2026, 64 institutions opened or increased positions in ASPEN AEROGELS INC while 37 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on ASPN?

HoldingsIntel scores ASPEN AEROGELS INC across four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) — with 3 of the 4 carrying data for ASPN. In Q2 2026, the institutional leg showed net inflows: 64 buying versus 37 selling.

How many hedge funds hold ASPN?

97 institutional investors report holding ASPEN AEROGELS INC (ASPN) as of Q2 2026, based on SEC 13F filings.

Is institutional money flowing into ASPN?

As of Q2 2026, tracked institutions in ASPEN AEROGELS INC show 64 buyers versus 37 sellers — net inflows.

ASPEN AEROGELS INC

ASPN·04523Y105·US·Common Stock·Industrials - Building Products & Equipment-Activist

Holders

(10 Elite)

$268.4M

Total Value

63% (101)

Consensus

64 buying - 37 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Held by 97 funds

10 elite

Who's Trading

Source dates: Price Oct 13, 2026 · Insiders Oct 1, 2026 · Activists Sep 24, 2026 · Congress none

InsiderDEDEEGAN GLENN E.Tax 1K shSep 30, 2026

ActivistWRWood River Capital, LLC0.0%Sep 24, 2026

InsiderWLWood River Capital, LLCSell $58.1MSep 23, 2026

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	Action
BlackRock, Inc.	Increased	5.3M(+11.3%)	$33.5M	0.0%	-52.39%	32
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	3.5M(+3.0%)	$22.4M	0.0%	+58.72%	29
STATE STREET CORP	Increased	2.6M(+10.3%)	$16.2M	0.0%	-40.81%	31
AMERICAN CENTURY COMPANIES INC	Increased	2.5M(+101.2%)	$15.9M	0.0%	+0.06%	45
JACOBS LEVY EQUITY MANAGEMENT, INC	Increased	2.1M(+68.9%)	$13M	0.0%	+19.91%	41
AMERIPRISE FINANCIAL INC	Increased	1.8M(+20.9%)	$11.5M	0.0%	+52.65%	33
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.8M(+14.9%)	$11.2M	0.0%	-52.49%	32
Invesco Ltd.	Decreased	1.6M(-29.5%)	$10.3M	0.0%	+32.98%	0
DIMENSIONAL FUND ADVISORS LP	Increased	1.4M(+15.2%)	$9.2M	0.0%	-60.50%	32
GOLDMAN SACHS GROUP INC	Increased	1.4M(+52.6%)	$8.7M	0.0%	-31.00%	39
ROYCE & ASSOCIATES LP	Increased	1.3M(+34.1%)	$8.4M	0.1%	+32.57%	35
AQR CAPITAL MANAGEMENT LLC	Increased	1.3M(+142.6%)	$8.1M	0.0%	-0.65%	44
MILLENNIUM MANAGEMENT LLC	Decreased	1.2M(-15.2%)	$7.5M	0.0%	-29.09%	0
MWMARSHALL WACE, LLP	Decreased	1.1M(-9.2%)	$7.3M	0.0%	+26.66%	0
DED. E. Shaw & Co., Inc.	Increased	1.1M(+27.9%)	$6.8M	0.0%	+34.93%	34
JPMORGAN CHASE & CO	Increased	1M(+4.0%)	$6M	0.0%	-18.15%	28
BNP PARIBAS FINANCIAL MARKETS	Increased	867,199(+24.3%)	$5.5M	0.0%	-29.35%	33
TWO SIGMA INVESTMENTS, LP	Increased	779,468(+76.6%)	$4.9M	0.0%	-39.44%	41
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Decreased	698,983(-2.5%)	$4.4M	0.0%	+62.87%	0
FEDERATED HERMES, INC.	Increased	596,883(+32.6%)	$3.8M	0.0%	+10.60%	34

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

ASPEN AEROGELS INC

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