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ASPN Insider Trading

Insider Ownership Percentage: 4.30%
Insider Buying (Last 12 Months): $107,000.00
Insider Selling (Last 12 Months): $230,926.45

Aspen Aerogels Insider Trading History Chart

This chart shows the insider buying and selling history at Aspen Aerogels by year and by quarter.

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Aspen Aerogels Share Price & Price History

Current Price: $3.64
Price Change: ▲ Price Increase of +0.16 (4.60%)
As of 12/4/2025 04:59 PM ET

This chart shows the closing price history over time for ASPN up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Aspen Aerogels Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/13/2025Donald R. YoungCEOSell56,845$3.23$183,609.35494,011View SEC Filing Icon  
8/13/2025Santhosh P DanielCAOSell2,000$7.54$15,080.0017,879View SEC Filing Icon  
8/12/2025Santhosh P DanielCAOSell4,410$7.31$32,237.1019,879View SEC Filing Icon  
5/12/2025Donald R. YoungCEOBuy20,000$5.35$107,000.00550,856View SEC Filing Icon  
9/30/2024Donald R. YoungCEOSell63,355$30.03$1,902,550.65483,640View SEC Filing Icon  
8/26/2024Ricardo C RodriguezCFOSell32,465$30.14$978,495.1020,790View SEC Filing Icon  
5/28/2024Donald R. YoungCEOSell256,944$29.24$7,513,042.56502,855View SEC Filing Icon  
5/14/2024Wood River Capital, LlcMajor ShareholderSell3,500,000$23.50$82,250,000.0012,280,426View SEC Filing Icon  
5/13/2024Keith L SchillingSVPSell20,000$26.84$536,800.0028,792View SEC Filing Icon  
5/6/2024Corby C. WhitakerSVPSell55,159$25.01$1,379,526.59131,533View SEC Filing Icon  
11/20/2023Gregg LandesSVPSell155$11.01$1,706.55126,393View SEC Filing Icon  
9/7/2023Steven R MitchellDirectorBuy7,541$6.50$49,016.50134,260View SEC Filing Icon  
9/5/2023Steven R MitchellDirectorBuy50,000$6.17$308,500.00126,719View SEC Filing Icon  
8/22/2023Mark L NoetzelDirectorBuy4,000$5.65$22,600.00119,322View SEC Filing Icon  
8/8/2023Donald R. YoungCEOBuy25,000$6.83$170,750.00656,703View SEC Filing Icon  
12/6/2022James E SweetnamDirectorBuy2,700$11.30$30,510.006,195View SEC Filing Icon  
11/30/2022Wood River Capital, LlcMajor ShareholderBuy10,526,316$9.50$100,000,002.0015,780,426View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Aspen Aerogels (NYSE:ASPN)

97.64% of Aspen Aerogels stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at ASPN by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Aspen Aerogels Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
12/2/2025IFP Advisors Inc12,021$84K0.0%-42.1%0.015%Search for SEC Filing on Google Icon
11/25/2025Connors Investor Services Inc.40,167$0.28M0.0%+14.2%0.049%Search for SEC Filing on Google Icon
11/24/2025Penn Capital Management Company LLC1,036,995$7.23M0.6%+39.0%1.255%Search for SEC Filing on Google Icon
11/17/2025Caxton Associates LLP13,654$95K0.0%-86.8%0.017%Search for SEC Filing on Google Icon
11/17/2025Voleon Capital Management LP138,538$0.96M0.0%-44.3%0.168%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC65,962$0.46M0.0%-30.7%0.080%Search for SEC Filing on Google Icon
11/17/2025Sargent Investment Group LLC189,227$1.32M0.2%-8.0%0.229%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd126,275$0.88M0.0%-50.6%0.153%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC10,109$70K0.0%N/A0.012%Search for SEC Filing on Google Icon
11/17/2025Numerai GP LLC18,280$0.13M0.0%N/A0.022%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC1,447,517$10.08M0.0%+59.6%1.751%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.31,159$0.22M0.0%-12.5%0.038%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP55,400$0.39M0.0%N/A0.067%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE814,849$5.67M0.0%-0.4%0.986%Search for SEC Filing on Google Icon
11/17/2025Algert Global LLC94,655$0.66M0.0%-50.3%0.115%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.64,090$0.45M0.0%-26.4%0.078%Search for SEC Filing on Google Icon
11/14/2025Creative Planning21,948$0.15M0.0%+43.2%0.027%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.34,787$0.24M0.0%+31.0%0.042%Search for SEC Filing on Google Icon
11/14/2025Man Group plc80,197$0.56M0.0%N/A0.097%Search for SEC Filing on Google Icon
11/14/2025Occudo Quantitative Strategies LP10,398$72K0.0%N/A0.013%Search for SEC Filing on Google Icon
11/14/2025California State Teachers Retirement System60,670$0.42M0.0%+7.3%0.073%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC94,589$0.66M0.0%-48.4%0.114%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP811,528$5.65M0.0%+5.2%0.982%Search for SEC Filing on Google Icon
11/14/2025Caption Management LLC30,000$0.21M0.0%-31.4%0.036%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC90,850$0.63M0.0%+33.3%0.110%Search for SEC Filing on Google Icon
11/13/2025Jump Financial LLC537,400$3.74M0.0%+361.7%0.650%Search for SEC Filing on Google Icon
11/13/2025Entropy Technologies LP23,221$0.16M0.0%N/A0.028%Search for SEC Filing on Google Icon
11/13/2025Invesco Ltd.1,222,376$8.51M0.0%+46.9%1.479%Search for SEC Filing on Google Icon
11/13/2025Ironwood Investment Management LLC134,362$0.94M0.4%+8.1%0.163%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG396,809$2.76M0.0%+45.4%0.480%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets692,148$4.82M0.0%+68.4%0.837%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.46,754$0.33M0.0%+15.7%0.057%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.134,247$0.93M0.0%+74.5%0.162%Search for SEC Filing on Google Icon
11/13/2025First Trust Advisors LP195,968$1.36M0.0%-4.7%0.237%Search for SEC Filing on Google Icon
11/13/2025HUB Investment Partners LLC16,940$0.12M0.0%N/A0.020%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP2,252,013$15.68M0.0%-8.0%2.725%Search for SEC Filing on Google Icon
11/12/2025First Eagle Investment Management LLC517,323$3.60M0.0%N/A0.626%Search for SEC Filing on Google Icon
11/12/2025Quantbot Technologies LP158,583$1.10M0.0%N/A0.192%Search for SEC Filing on Google Icon
11/12/2025Mitsubishi UFJ Asset Management Co. Ltd.70,177$0.49M0.0%-11.4%0.085%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC44,964$0.31M0.0%+16.1%0.054%Search for SEC Filing on Google Icon
11/12/2025Fox Run Management L.L.C.36,181$0.25M0.0%N/A0.044%Search for SEC Filing on Google Icon
11/10/2025Counterpoint Mutual Funds LLC71,595$0.50M0.0%N/A0.087%Search for SEC Filing on Google Icon
11/10/2025Compound Planning Inc.15,003$0.10M0.0%N/A0.018%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.4,510,370$31.39M0.0%+0.5%5.476%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.1,349,749$9.39M0.0%+8.3%1.639%Search for SEC Filing on Google Icon
11/6/2025Peregrine Investment Management Inc.600,000$4.18M2.1%N/A0.729%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers110,732$0.77M0.0%-2.4%0.134%Search for SEC Filing on Google Icon
11/6/2025Essex Investment Management Co. LLC390,033$2.72M0.4%-8.6%0.474%Search for SEC Filing on Google Icon
11/6/2025Versor Investments LP39,300$0.27M0.1%N/A0.048%Search for SEC Filing on Google Icon
11/6/2025ProShare Advisors LLC11,338$79K0.0%-16.6%0.014%Search for SEC Filing on Google Icon
11/6/2025Oppenheimer & Co. Inc.121,826$0.85M0.0%+515.9%0.148%Search for SEC Filing on Google Icon
11/5/2025Alps Advisors Inc.123,677$0.86M0.0%-11.1%0.150%Search for SEC Filing on Google Icon
11/4/2025Woodmont Investment Counsel LLC14,603$0.10M0.0%-42.7%0.018%Search for SEC Filing on Google Icon
11/3/2025Gagnon Securities LLC1,754,833$12.21M2.5%-7.6%2.131%Search for SEC Filing on Google Icon
11/3/2025New York State Common Retirement Fund720,024$5.01M0.0%+45.6%0.874%Search for SEC Filing on Google Icon
11/3/2025Federated Hermes Inc.289,931$2.02M0.0%-83.6%0.352%Search for SEC Filing on Google Icon
10/30/2025Olympiad Research LP10,109$70K0.1%N/A0.012%Search for SEC Filing on Google Icon
10/30/2025Universal Beteiligungs und Servicegesellschaft mbH35,123$0.24M0.0%-51.5%0.043%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC80,423$0.56M0.0%-39.9%0.098%Search for SEC Filing on Google Icon
10/17/2025Perigon Wealth Management LLC49,321$0.34M0.0%+30.3%0.060%Search for SEC Filing on Google Icon
10/16/2025Rice Hall James & Associates LLC1,407,726$9.80M0.5%-8.9%1.709%Search for SEC Filing on Google Icon
10/15/2025Inspire Investing LLC66,115$0.46M0.0%N/A0.080%Search for SEC Filing on Google Icon
10/15/2025ARS Investment Partners LLC60,007$0.42M0.0%+6.2%0.073%Search for SEC Filing on Google Icon
10/9/2025Voya Investment Management LLC12,359$86K0.0%-32.8%0.015%Search for SEC Filing on Google Icon
10/9/2025Harbour Capital Advisors LLC58,675$0.41M0.1%N/A0.071%Search for SEC Filing on Google Icon
9/4/2025Osaic Holdings Inc.10,615$63K0.0%+29.1%0.013%Search for SEC Filing on Google Icon
8/18/2025Caxton Associates LLP103,172$0.61M0.0%+114.9%0.125%Search for SEC Filing on Google Icon
8/16/2025FORA Capital LLC29,452$0.17M0.0%+138.2%0.036%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 7,235$43K0.0%+184.6%0.009%Search for SEC Filing on Google Icon
8/15/2025Voleon Capital Management LP248,839$1.47M0.1%+464.8%0.302%Search for SEC Filing on Google Icon
8/15/2025HRT Financial LP595,742$3.53M0.0%+668.7%0.723%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets411,066$2.43M0.0%+5.7%0.499%Search for SEC Filing on Google Icon
8/15/2025Balyasny Asset Management L.P.59,099$0.35M0.0%-62.3%0.072%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE818,212$4.84M0.0%+124.2%0.993%Search for SEC Filing on Google Icon
8/15/2025AWM Investment Company Inc.1,435,477$8.50M1.0%-41.4%1.743%Search for SEC Filing on Google Icon
8/14/2025California State Teachers Retirement System56,519$0.34M0.0%-7.4%0.069%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.26,559$0.16M0.0%+6.8%0.032%Search for SEC Filing on Google Icon
8/14/2025Caption Management LLC43,700$0.26M0.0%-90.3%0.053%Search for SEC Filing on Google Icon
8/14/2025The Manufacturers Life Insurance Company 24,671$0.15M0.0%+12.1%0.030%Search for SEC Filing on Google Icon
8/14/2025Nebula Research & Development LLC35,414$0.21M0.0%-38.7%0.043%Search for SEC Filing on Google Icon
8/14/2025Frontier Capital Management Co. LLC508,651$3.01M0.0%-0.3%0.618%Search for SEC Filing on Google Icon
8/14/2025Qube Research & Technologies Ltd255,594$1.51M0.0%-40.4%0.310%Search for SEC Filing on Google Icon
8/14/2025Federated Hermes Inc.1,766,733$10.46M0.0%N/A2.145%Search for SEC Filing on Google Icon
8/13/2025Jump Financial LLC116,400$0.69M0.0%N/A0.141%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP404,006$2.39M0.0%+32.1%0.491%Search for SEC Filing on Google Icon
8/13/2025Baird Financial Group Inc.399,740$2.37M0.0%-10.0%0.485%Search for SEC Filing on Google Icon
8/13/2025First Trust Advisors LP205,563$1.22M0.0%-23.8%0.250%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.831,991$4.93M0.0%+1,045.5%1.010%Search for SEC Filing on Google Icon
8/13/2025Samjo Management LLC343,625$2.03M0.9%-57.8%0.417%Search for SEC Filing on Google Icon
8/13/2025New York State Common Retirement Fund494,462$2.93M0.0%+13.0%0.600%Search for SEC Filing on Google Icon
8/13/2025Russell Investments Group Ltd.76,950$0.46M0.0%-35.9%0.093%Search for SEC Filing on Google Icon
8/12/2025American Century Companies Inc.15,044$89K0.0%N/A0.018%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers113,506$0.67M0.0%+24.8%0.138%Search for SEC Filing on Google Icon
8/12/2025Legal & General Group Plc67,130$0.40M0.0%+3.6%0.082%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.1,246,506$7.38M0.0%+105.4%1.513%Search for SEC Filing on Google Icon
8/12/2025Telemark Asset Management LLC1,792,424$10.61M1.0%-5.3%2.176%Search for SEC Filing on Google Icon
8/11/2025ARS Investment Partners LLC56,507$0.34M0.0%+132.1%0.069%Search for SEC Filing on Google Icon
8/11/2025Universal Beteiligungs und Servicegesellschaft mbH72,428$0.43M0.0%+127.9%0.088%Search for SEC Filing on Google Icon
8/8/2025Creative Planning15,324$91K0.0%N/A0.019%Search for SEC Filing on Google Icon
8/8/2025SG Americas Securities LLC133,821$0.79M0.0%+98.6%0.163%Search for SEC Filing on Google Icon
Data available starting January 2016

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Aspen Aerogels logo
Aspen Aerogels, Inc. designs, develops, manufactures, and sells aerogel insulation products primarily for use in the energy infrastructure and sustainable insulation materials markets in the United States, Asia, Canada, Europe, and Latin America. It operates in two segments, Energy Industrial and Thermal Barrier. The company offers PyroThin thermal barriers for use in lithium-ion batteries in electric vehicles and energy storage industries; Pyrogel XTE that reduces the risk of corrosion under insulation in energy infrastructure operating systems; and Pyrogel HPS for applications within the power generation market. It also offers Pyrogel XTF to provide protection against fire; Cryogel Z for sub-ambient and cryogenic applications in the energy infrastructure market; Spaceloft Subsea for use in pipe-in-pipe applications in offshore oil production; and Cryogel X201, which is used in designing cold systems, such as refrigerated appliances, cold storage equipment, and aerospace systems. The company was founded in 2001 and is headquartered in Northborough, Massachusetts.
Read More on Aspen Aerogels

Today's Range

Now: $3.64
Low: $3.42
High: $3.73

50 Day Range

MA: $5.97
Low: $2.94
High: $8.82

52 Week Range

Now: $3.64
Low: $2.92
High: $14.53

Volume

2,561,129 shs

Average Volume

3,427,311 shs

Market Capitalization

$300.85 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.95

Who are the company insiders with the largest holdings of Aspen Aerogels?

Aspen Aerogels' top insider investors include:
  1. Wood River Capital, Llc (Major Shareholder)
  2. Donald R Young (CEO)
  3. Corby C Whitaker (SVP)
  4. Keith L Schilling (SVP)
  5. Ricardo C Rodriguez (CFO)
  6. Santhosh P Daniel (CAO)
Learn More about top insider investors at Aspen Aerogels.

Who are the major institutional investors of Aspen Aerogels?

Aspen Aerogels' top institutional shareholders include:
  1. Vanguard Group Inc. — 5.48%
  2. Dimensional Fund Advisors LP — 2.72%
  3. Gagnon Securities LLC — 2.13%
  4. Millennium Management LLC — 1.75%
  5. Rice Hall James & Associates LLC — 1.71%
  6. JPMorgan Chase & Co. — 1.64%
Learn More about top institutional investors of Aspen Aerogels stock.

Which major investors are selling Aspen Aerogels stock?

Within the previous quarter, ASPN stock was sold by these institutional investors:
  1. Federated Hermes Inc.
  2. Dimensional Fund Advisors LP
  3. Gagnon Securities LLC
  4. Rice Hall James & Associates LLC
  5. Qube Research & Technologies Ltd
  6. Voleon Capital Management LP
  7. Algert Global LLC
  8. Caxton Associates LLP
Within the last year, company insiders that have sold Aspen Aerogels company stock include:
  1. Wood River Capital, Llc (Major Shareholder)
  2. Donald R Young (CEO)
Learn More investors selling Aspen Aerogels stock.

Which major investors are buying Aspen Aerogels stock?

During the previous quarter, ASPN stock was bought by institutional investors including:
  1. Peregrine Investment Management Inc.
  2. Millennium Management LLC
  3. First Eagle Investment Management LLC
  4. Jump Financial LLC
  5. Invesco Ltd.
  6. Penn Capital Management Company LLC
  7. BNP Paribas Financial Markets
  8. New York State Common Retirement Fund