Aspen Aerogels Inc

ASPN

Exchange: NYSE
Industry: Wholesale-Lumber & Other Construction Materials
SEC CIK: 0001145986

SEC filings (opens in a new tab)

In the last 90 days, Aspen Aerogels Inc insiders filed 0 open-market purchases and 1 sale; 179 institutions reported holding it in 13F filings for Q2 2026, worth $464.9M in total; no superinvestor holds it.

Q4 2022 vs. Q3 2022

How the institutions holding Aspen Aerogels Inc changed between Q3 2022 and Q4 2022.

All holders in Q4 2022 All holders in Q3 2022

13F holders of ASPN: Q3 2022 compared with Q4 2022
Measure	Q3 2022	Of which not filed for Q4 2022	Q4 2022	Change
Holders	140	3	164	+27
Shares	37.3M	168.1K	67.3M	+30.2M (+81.2%)
Value	$344.0M	$1.55M	$793.4M	+$450.9M (+131.7%)

3 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so the changes leave them out.

New holders (44)

Institutions that held Aspen Aerogels Inc at the end of Q4 2022 but not at the end of Q3 2022.

Institutions new to ASPN in Q4 2022
Institution	Shares	Value	% of portfolio
AWM Investment Company, Inc.	1,300,000	$15.3M	2.21%
Hood River Capital Management LLC	1,052,013	$12.4M	0.45%
AIGH Capital Management LLC	1,000,000	$11.8M	3.90%
J. Goldman & Co LP	974,466	$11.5M	0.81%
Prescott Group Capital Management, L.L.C.	789,474	$9.31M	2.03%
Federated Hermes, Inc.	750,000	$8.84M	0.02%
Penn Capital Management Co Inc	690,481	$8.15M	0.83%
Yaupon Capital Management LP	669,938	$7.90M	1.42%
Arosa Capital Management LP	586,715	$6.92M	2.11%
Monashee Investment Management LLC	505,000	$5.95M	2.56%
Balyasny Asset Management LLC	429,901	$5.07M	0.02%
Ardsley Advisory Partners LP	308,500	$3.64M	0.92%
Ghisallo Capital Management LLC	300,000	$3.54M	0.63%
EVR Research LP	275,000	$3.24M	1.01%
Worth Venture Partners, LLC	250,250	$2.95M	1.75%
CastleKnight Management LP	242,900	$2.86M	0.83%
Palogic Value Management, L.P.	150,000	$1.77M	0.92%
Potomac Capital Management, Inc.	105,000	$1.24M	1.72%
Alpha Paradigm Partners, LLC	85,344	$1.01M	0.42%
Manatuck Hill Partners, LLC	75,000	$884.3K	0.42%
Caption Management, LLC	74,000	$872.5K	0.15%
Legato Capital Management LLC	51,449	$606.6K	0.12%
Diametric Capital, LP	49,698	$585.9K	0.28%
Quantbot Technologies LP	32,371	$381.7K	0.03%
Russell Investments Group, Ltd.	29,690	$350.0K	0.00%
Strategic Wealth Partners, Ltd.	27,927	$329.3K	0.06%
Prelude Capital Management, LLC	27,455	$323.7K	0.02%
Tilt Investment Management Holdings, PBC	22,413	$264.2K	0.22%
Jane Street Group, LLC	21,452	$252.9K	0.00%
Highland Capital Management Fund Advisors, L.P.	17,050	$201.0K	0.02%
Quadrature Capital Ltd	16,782	$198.0K	0.01%
Innovis Asset Management LLC	14,351	$169.2K	0.08%
Fox Run Management, L.L.C.	14,304	$168.6K	0.07%
Quantamental Technologies LLC	11,044	$130.2K	0.06%
Envestnet Asset Management Inc	10,422	$122.9K	0.00%
Arizona State Retirement System	10,270	$121.1K	0.00%
Clear Street Markets LLC	3,387	$40.0K	0.01%
Rockefeller Capital Management L.P.	436	$5.00K	0.00%
Colonial Trust Co	421	$4.96K	0.00%
HHM Wealth Advisors, LLC	200	$2.36K	0.00%
Mendota Financial Group, LLC	47	$554	0.00%
Colonial Trust Advisors	25	$295	0.00%
GWM Advisors LLC	98	$1	0.00%
Nisa Investment Advisors, LLC	39	$0	0.00%

Sold out (17)

Institutions that held Aspen Aerogels Inc at the end of Q3 2022 and filed for Q4 2022 without it.

Institutions that sold out of ASPN in Q4 2022
Institution	Shares, Q3 2022	Value, Q3 2022
Walleye Capital LLC	165,502	$1.53M
Jump Financial, LLC	37,700	$348.0K
Gsa Capital Partners LLP	31,936	$294.0K
Man Group plc	31,443	$290.0K
Dynamic Technology Lab Private Ltd	30,474	$281.0K
PEAK6 Investments LLC	17,818	$164.0K
XTX Topco Ltd	15,986	$147.0K
Versor Investments LP	15,400	$142.0K
SEI Investments Co	14,857	$137.0K
Mesirow Financial Investment Management, Inc.	13,910	$128.0K
Ensign Peak Advisors, Inc	3,760	$35.0K
Point72 Hong Kong Ltd	842	$8.00K
Macquarie Group Ltd	0	$3.00K
TCI Wealth Advisors, Inc.	313	$3.00K
Almanack Investment Partners, LLC.	180	$2.00K
Whittier Trust Co	54	$0
Bogart Wealth, LLC	20	$0

Not filed for Q4 2022 yet (3)

Institutions that held Aspen Aerogels Inc at the end of Q3 2022 and haven't filed a 13F for Q4 2022. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ASPN in Q3 2022 that haven't filed for Q4 2022
Institution	Shares, Q3 2022	Value, Q3 2022
Afton Capital Management LLC	167,119	$1.54M
American Portfolios Advisors	870	$8.02K
Wipfli Financial Advisors LLC,	126	$1.00K