Who Owns Aspen Aerogels, Inc. (ASPN)?Hedge Fund & Institutional Holders

$3.63+0.04 (+0.97%)IndustrialsNYSE

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$InfinityT

% of Float Held

1.5922317605589264e+292%

QoQ Change in Holders

+13 / -2

Price History

$2.57$9.06$15.55$22.05$28.54Sep 24Jun 25Mar 26

ASPN — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
RICE HALL JAMES & ASSOCIATES, LLCNew Position+1.4M+$4.0B
GAGNON SECURITIES LLCNew Position+1.1M+$3.2B
Invesco Ltd.Increased+2.9M+$3.2B
AMERIPRISE FINANCIAL INCNew Position+1.4M+$3.0B
FEDERATED HERMES, INC.New Position+564K+$1.0B
IMC-Chicago, LLCNew Position+103K+$291.0M
Assenagon Asset Management S.A.New Position+97K+$274.0M
OPPENHEIMER & CO INCNew Position+77K+$217.0M
Palogic Value Management, L.P.Increased+325K+$93.0M
OXFORD ASSET MANAGEMENT LLPNew Position+24K+$68.0M
HSBC HOLDINGS PLCNew Position+23K+$66.0M
Centiva Capital, LPNew Position+21K+$60.0M
Arizona State Retirement SystemNew Position+19K+$54.0M
WOODMONT INVESTMENT COUNSEL LLCNew Position+15K+$41.0M
GROUP ONE TRADING LLCNew Position+14K+$40.0M

ASPN — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
DIMENSIONAL FUND ADVISORS LPDecreased-248K-$10.7B
Telemark Asset Management, LLCDecreased-792K-$9.6B
MILLENNIUM MANAGEMENT LLCDecreased-577K-$8.1B
GOLDMAN SACHS GROUP INCDecreased-125K-$7.9B
Penn Capital Management Company, LLCClosed Position-1.0M-$7.2B
CITADEL ADVISORS LLCDecreased-248K-$5.8B
TWO SIGMA INVESTMENTS, LPDecreased-54K-$3.6B
TUDOR INVESTMENT CORP ET ALDecreased-407K-$3.4B
NORTHERN TRUST CORPDecreased-74K-$3.3B
CHARLES SCHWAB INVESTMENT MANAGEMENT INCDecreased-32K-$3.0B
ROYAL BANK OF CANADADecreased-383K-$2.7B
Baird Financial Group, Inc.Decreased-353K-$2.5B
UBS Group AGDecreased-81K-$1.9B
Trexquant Investment LPClosed Position-260K-$1.8B
STATE OF WISCONSIN INVESTMENT BOARDDecreased-137K-$1.8B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1KIM, LLC12,280,426$34.8B2.81%Share
2OAKTOP CAPITAL MANAGEMENT II, L.P.4,394,525$12.4B1.05%Share
3Invesco Ltd.4,102,175$11.6B0.00%Share
4NEEDHAM INVESTMENT MANAGEMENT LLC2,700,000$7.6B0.48%Share
5DIMENSIONAL FUND ADVISORS LP1,870,313$5.0B0.00%Share
6RICE HALL JAMES & ASSOCIATES, LLC1,421,605$4.0B0.22%Share
7JPMORGAN CHASE & CO1,457,187$4.0B0.00%Share
8GAGNON SECURITIES LLC1,133,248$3.2B0.65%Share
9AMERICAN CENTURY COMPANIES INC1,157,978$3.0B0.00%Share
10AMERIPRISE FINANCIAL INC1,377,555$3.0B0.00%Share
11Telemark Asset Management, LLC1,000,000$2.8B0.28%Share
12NEEDHAM INVESTMENT MANAGEMENT LLC945,425$2.7B0.17%Share
13CITADEL ADVISORS LLC866,218$2.0B0.00%Share
14GOLDMAN SACHS GROUP INC997,791$2.0B0.00%Share
15TWO SIGMA INVESTMENTS, LP757,419$2.0B0.00%Share
16BANK OF AMERICA CORP /DE/722,024$2.0B0.00%Share
17MILLENNIUM MANAGEMENT LLC870,951$2.0B0.00%Share
18First Eagle Investment Management, LLC620,274$1.8B0.00%Share
19Palogic Value Management, L.P.525,000$1.5B0.62%Share
20Samjo Management, LLC504,500$1.5B0.61%Share
21NEEDHAM INVESTMENT MANAGEMENT LLC424,075$1.2B0.08%Share
22FEDERATED HERMES, INC.545,076$1.0B0.00%Share
23SUSQUEHANNA INTERNATIONAL GROUP, LLP594,500$1.0B0.00%Call
24NORTHERN TRUST CORP488,335$1.0B0.00%Share
25CHARLES SCHWAB INVESTMENT MANAGEMENT INC540,323$1.0B0.00%Share
26Jump Financial, LLC542,400$1.0B0.01%Share
27AQR CAPITAL MANAGEMENT LLC367,687$1.0B0.00%Share
28UBS Group AG308,642$873.0M0.00%Share
29Samjo Management, LLC294,025$786.0M0.33%Share
30IMC-Chicago, LLC270,100$764.0M0.00%Call
31Centiva Capital, LP250,000$707.0M0.01%Call
32NEEDHAM INVESTMENT MANAGEMENT LLC238,800$675.0M0.04%Share
33IRONWOOD INVESTMENT MANAGEMENT LLC127,460$360.0M0.15%Share
34GROUP ONE TRADING LLC124,300$351.0M0.00%Call
35EntryPoint Capital, LLC110,142$311.0M0.12%Share
36IMC-Chicago, LLC102,930$291.0M0.00%Share
37IMC-Chicago, LLC100,700$284.0M0.00%Put
38Assenagon Asset Management S.A.97,002$274.0M0.00%Share
39OPPENHEIMER & CO INC77,021$217.0M0.00%Share
40CONNORS INVESTOR SERVICES INC55,167$156.0M0.01%Share
41NEEDHAM INVESTMENT MANAGEMENT LLC43,400$122.0M0.01%Share
42ARS Investment Partners, LLC40,765$115.0M0.01%Share
43GROUP ONE TRADING LLC37,400$105.0M0.00%Put
44Caption Management, LLC36,100$102.0M0.00%Share
45OXFORD ASSET MANAGEMENT LLP24,083$68.0M0.03%Share
46HSBC HOLDINGS PLC23,326$66.0M0.00%Share
47Centiva Capital, LP21,247$60.0M0.00%Share
48Arizona State Retirement System19,323$54.0M0.00%Share
49Invesco Ltd.16,988$48.0M0.00%Share
50WOODMONT INVESTMENT COUNSEL LLC14,603$41.0M0.00%Share

ASPN Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025180$120.1B+21
Q3 2025159$303.7B+2
Q2 2025157$256.5B-64
Q1 2025221$355.0B+1
Q4 2024220$1.3T+27
Q3 2024193$23.5T+16
Q2 2024177$24.9T+41
Q1 2024136$11.4T—

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As of Q4 2025, 50 institutional investors hold ASPN (Aspen Aerogels, Inc.). The largest holder is KIM, LLC with $34.8B in shares. This quarter, 13 institutions opened new positions and 2 closed their positions.

Frequently Asked Questions

How many hedge funds own ASPN?

As of Q4 2025, 50 institutional investors report holding ASPN (Aspen Aerogels, Inc.) in their 13F filings.

Who is the largest institutional holder of ASPN?

The largest institutional holder of ASPN is KIM, LLC with $34.8B in shares.

Is institutional ownership of ASPN increasing or decreasing?

This quarter, 13 institutions opened new positions in ASPN and 2 closed their positions.