What does CUSIP 04523Y105 represent in this 13F holders report?

CUSIP 04523Y105 is the security identifier for ASPN - ASPEN AEROGELS INC - Common Stock used to aggregate holder disclosures.

How many institutions held ASPN - ASPEN AEROGELS INC - Common Stock in Q4 2023?

166 institutional investors reported ASPN - ASPEN AEROGELS INC - Common Stock for Q4 2023. Use the holders table for investor-level position and value details.

ASPEN AEROGELS INC - Common Stock (ASPN)

CUSIP: 04523Y105

Q4 2023 13F Holders as of 31 Dec 2023

Type / Class: Equity / Common Stock
Shares outstanding: 82,107,547
Total 13F shares: 74,870,231
Share change: +8,015,312
Total reported value: $1,181,354,395
Put/Call ratio: 154%
Price per share: $15.78
Number of holders: 166
Value change: +$136,924,909
Number of buys: 76
Number of sells: 70

Quarterly Holders Quick Answers

What is CUSIP 04523Y105?
CUSIP 04523Y105 identifies ASPN - ASPEN AEROGELS INC - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2024
Previous quarter: Q3 2023

Recent filing periods for CUSIP 04523Y105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ASPN - ASPEN AEROGELS INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
KIM, LLC	13F	Company	19%	15,780,426	$135,711,664	—	30 Sep 2023	13F
BlackRock Finance, Inc.	13F	Company	4.7%	3,873,707	$33,313,881	—	30 Sep 2023	13F
VANGUARD GROUP INC	13F	Company	4.2%	3,445,887	$29,634,628	—	30 Sep 2023	13F
OAKTOP CAPITAL MANAGEMENT II, L.P.	13F	Company	3.9%	3,194,758	$27,474,919	—	30 Sep 2023	13F
GEORGE KAISER FAMILY FOUNDATION	13F	Individual	3.9%	3,167,322	$27,238,969	—	30 Sep 2023	13F
Samjo Capital LLC	13F	Company	3.7%	3,015,000	$25,929,000	—	30 Sep 2023	13F
NEEDHAM INVESTMENT MANAGEMENT LLC	13F	Company	3.1%	2,528,300	$21,743,380	—	30 Sep 2023	13F
FMR LLC	13F	Company	2.8%	2,279,177	$19,600,922	—	30 Sep 2023	13F
AIGH Capital Management LLC	13F	Company	2.1%	1,752,022	$15,067,389	—	30 Sep 2023	13F
AWM Investment Company, Inc.	13F	Company	2%	1,661,580	$14,289,588	—	30 Sep 2023	13F
ARDSLEY ADVISORY PARTNERS LP	13F	Company	1.9%	1,545,000	$13,287,000	—	30 Sep 2023	13F
ROYCE & ASSOCIATES LP	13F	Company	1.8%	1,459,349	$12,550,401	—	30 Sep 2023	13F
Telemark Asset Management, LLC	13F	Company	1.5%	1,250,000	$10,750,000	—	30 Sep 2023	13F
STATE STREET CORP	13F	Company	1.4%	1,185,816	$10,198,018	—	30 Sep 2023	13F
UniSuper Management Pty Ltd	13F	Company	1.3%	1,083,836	$9,320,990	—	30 Sep 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.3%	1,075,276	$9,248,550	—	30 Sep 2023	13F
Nuveen Asset Management, LLC	13F	Company	1.2%	1,018,092	$8,755,591	—	30 Sep 2023	13F
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	1.2%	963,587	$8,286,848	—	30 Sep 2023	13F
AMERIPRISE FINANCIAL INC	13F	Company	1.1%	879,492	$7,563,631	—	30 Sep 2023	13F
Penn Capital Management Company, LLC	13F	Company	0.96%	789,936	$6,802,764	—	30 Sep 2023	13F
FEDERATED HERMES, INC.	13F	Company	0.91%	750,000	$6,450,000	—	30 Sep 2023	13F
Redwood Investments, LLC	13F	Company	0.89%	729,423	$6,273,038	—	30 Sep 2023	13F
CITADEL ADVISORS LLC	13F	Company	0.81%	667,829	$5,743,330	—	30 Sep 2023	13F
RICE HALL JAMES & ASSOCIATES, LLC	13F	Company	0.76%	623,135	$5,358,961	—	30 Sep 2023	13F
ESSEX INVESTMENT MANAGEMENT CO LLC	13F	Company	0.72%	595,137	$5,118,178	—	30 Sep 2023	13F
Point72 Asset Management, L.P.	13F	Company	0.7%	575,233	$4,947,004	—	30 Sep 2023	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.68%	554,698	$4,770,403	—	30 Sep 2023	13F
Robert M. Gervis	3/4/5	Director	— mixed-class rows	430,851 mixed-class rows	$4,708,680	—	02 Jun 2022	3/4/5
NORTHERN TRUST CORP	13F	Company	0.64%	528,399	$4,544,231	—	30 Sep 2023	13F
ALGERT GLOBAL LLC	13F	Company	0.62%	508,794	$4,376,000	—	30 Sep 2023	13F
MASTERS CAPITAL MANAGEMENT LLC	13F	Company	0.61%	498,500	$4,287,100	—	30 Sep 2023	13F
Baird Financial Group, Inc.	13F	Company	0.58%	478,171	$4,112,271	—	30 Sep 2023	13F
Caption Management, LLC	13F	Company	0.52%	430,000	$3,698,000	—	30 Sep 2023	13F
Worth Venture Partners, LLC	13F	Company	0.52%	428,367	$3,683,956	—	30 Sep 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.45%	365,536	$3,143,610	—	30 Sep 2023	13F
AMH Equity Ltd	13F	Company	0.44%	362,970	$3,142,827	—	30 Sep 2023	13F
MORGAN STANLEY	13F	Company	0.43%	348,995	$3,001,357	—	30 Sep 2023	13F
SILVERCREST ASSET MANAGEMENT GROUP LLC	13F	Company	0.39%	322,967	$2,777,516	—	30 Sep 2023	13F
CastleKnight Management LP	13F	Company	0.38%	310,200	$2,667,720	—	30 Sep 2023	13F
Harvey Partners, LLC	13F	Company	0.37%	302,500	$2,601,500	—	30 Sep 2023	13F
Palogic Value Management, L.P.	13F	Company	0.37%	300,000	$2,580,000	—	30 Sep 2023	13F
ExodusPoint Capital Management, LP	13F	Company	0.34%	277,967	$2,391,000	—	30 Sep 2023	13F
ZEVENBERGEN CAPITAL INVESTMENTS LLC	13F	Company	0.33%	274,227	$2,358,352	—	30 Sep 2023	13F
Sargent Investment Group, LLC	13F	Company	0.33%	271,710	$2,336,706	—	30 Sep 2023	13F
SORA INVESTORS LLC	13F	Company	0.3%	250,000	$2,150,000	—	30 Sep 2023	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.29%	239,763	$2,061,962	—	30 Sep 2023	13F
KENNEDY CAPITAL MANAGEMENT LLC	13F	Company	0.27%	220,615	$1,897,289	—	30 Sep 2023	13F
Trellus Management Company, LLC	13F	Company	0.27%	220,000	$1,892,000	—	30 Sep 2023	13F
Bank of New York Mellon Corp	13F	Company	0.25%	208,062	$1,789,333	—	30 Sep 2023	13F
Hartree Partners, LP	13F	Company	0.24%	200,001	$1,720,008	—	30 Sep 2023	13F

Institutional Holders of ASPEN AEROGELS INC - Common Stock (ASPN) as of Q4 2023

As of 31 Dec 2023, ASPEN AEROGELS INC - Common Stock (ASPN) was held by 166 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 74,870,231 shares. The largest 10 holders included KIM, LLC, BlackRock Inc., VANGUARD GROUP INC, OAKTOP CAPITAL MANAGEMENT II, L.P., GEORGE KAISER FAMILY FOUNDATION, NEEDHAM INVESTMENT MANAGEMENT LLC, Hood River Capital Management LLC, FMR LLC, Samjo Management, LLC, and AWM Investment Company, Inc.. This page lists 167 institutional shareholders reporting positions in this security for the Q4 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2023 vs Q3 2023 Across Filers

Q3 2023 holders

157

Q4 2023 holders

166

Holder diff

Investor	Q3 2023 Shares	Q4 2023 Shares	Share Diff	Share Chg %	Q3 2023 Value $	Q4 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.