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NYSE · Consumer discretionary

Aspen Aerogels Inc (ASPN)

Aspen Aerogels Inc brought in $214.3M of revenue over the twelve months to September 30, 2026, down 39.3% from a year earlier. It posted a net loss of $130.3M. In fiscal 2025 capital spending exceeded operating cash flow by $4.6M. At September 30, 2026 it held $146M in cash against $51.1M of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 5, 2026.

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Price
$6.11
+24.44% on the day · November 9, 2026
52-week range $2.30 to $8.10
Market cap
$507.1M
Revenue (last 12 months)
$214.3M
-39.3% year on year
Net margin
-60.8%

Key facts about Aspen Aerogels Inc

Net worth
Aspen Aerogels Inc has a market value (market cap) of $507.1M at the latest share price, and shareholders' equity of $184.4M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Revenue and profit
In fiscal 2025 revenue was $271.1M (-40.1% year on year), with a net loss of $389.6M. Over the 12 months to September 30, 2026: revenue $214.3M, net loss $130.3M.
Cash flow
In fiscal 2025 operations brought in $32.9M of cash; after $37.4M of capital spending, free cash flow was -$4.6M.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 5, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
Next earnings report
Aspen Aerogels Inc's next report is expected around February 24, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

What Aspen Aerogels Inc does

Aspen Aerogels Inc is registered with the SEC under industry code SIC 5030 (Wholesale-Lumber & Other Construction Materials). Its shares trade on NYSE under the ticker ASPN.

Revenue and profit by year

Revenue
FY18: $104.4M $104.4M FY18FY19: $139.4M $139.4M FY19FY20: $100.3M $100.3M FY20FY21: $121.6M $121.6M FY21FY22: $180.4M $180.4M FY22FY23: $238.7M $238.7M FY23FY24: $452.7M $452.7M FY24FY25: $271.1M $271.1M FY25
Net income
FY18: -$34.4M -$34.4M FY18FY19: -$14.6M -$14.6M FY19FY20: -$21.8M -$21.8M FY20FY21: -$37.1M -$37.1M FY21FY22: -$82.7M -$82.7M FY22FY23: -$45.8M -$45.8M FY23FY24: $13.4M $13.4M FY24FY25: -$389.6M -$389.6M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$271.1M-$378.2M-$389.6M-$4.73-$4.6M
2024$452.7M$54.5M$13.4M$0.17-$40.7M
2023$238.7M-$49.2M-$45.8M-$0.66-$218.1M
2022$180.4M-$79.2M-$82.7M-$2.10-$272.4M
2021$121.6M-$40.6M-$37.1M-$1.22-$32.4M
2020$100.3M-$21.6M-$21.8M-$0.83-$13.3M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Next report expected around February 24, 2027.

Estimated from its filing rhythm: 52 weeks after its report of February 25, 2026. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Where ASPN ranks in Consumer discretionary

Revenue$271.1M
#673 of 1077 in Consumer discretionary · Bottom 38%
Revenue growth-40.1%
#943 of 952 in Consumer discretionary · Bottom 1%
Net margin-143.7%
#954 of 968 in Consumer discretionary · Bottom 1%
Free cash flow margin-1.7%
#665 of 853 in Consumer discretionary · Bottom 22%

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Consumer discretionary

Latest SEC filings

What Aspen Aerogels Inc has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. November 5, 2026
  2. November 5, 2026
    Quarterly report 10-Q · period to September 30, 2026Revenue rose 17% to $85.2M versus the same quarter last year; diluted EPS -$0.13 versus -$0.08.
  3. November 5, 2026
  4. October 19, 2026
  5. September 24, 2026
  6. September 15, 2026
  7. August 13, 2026
  8. August 7, 2026
    Quarterly report 10-Q · period to June 30, 2026Revenue fell 36% to $49.8M versus the same quarter last year; diluted EPS -$0.28 versus -$0.11.
  9. August 6, 2026
  10. May 18, 2026

Recent insider filings (Forms 3, 4 and 144): 10, the latest on November 6, 2026. Insider transactions on SEC

Insider trades

What the people running Aspen Aerogels Inc did with its shares, from the Form 4 filings they must send the SEC within two business days.

Insiders sold $58.1M worth of shares in the last 90 days and bought none on the open market.

Bought (open market)
$0
last 90 days
Sold
$58.1M
last 90 days
Net sold
12,280,426
$58.1M
DateInsiderWhatSharesPriceValueFiling
November 4, 2026 Nieuwoudt Stacy DurbinDirector Received as pay 6,073 - - Form 4
September 30, 2026 Deegan Glenn E.CAO, GC & Corp Secretary Shares withheld for tax 1,143 $5.48 $6.3K Form 4
September 23, 2026 Wood River Capital, LLC10% owner Sold 12,280,426 $4.73 $58.1M Form 4
June 23, 2026 Noglows William PDirector Exercised options 14,799 $4.75 $70.3K Form 4
May 13, 2026 Robinson CariDirector Received as pay 10,370 - - Form 4
May 13, 2026 Kool KathleenDirector Received as pay 10,370 - - Form 4
May 13, 2026 Noglows William PDirector Received as pay 10,370 - - Form 4
May 13, 2026 Sweetnam James EDirector Received as pay 10,370 - - Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns ASPN

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

HolderOf classSharesFiled
Orin Hirschman13G, passive with 1 related filers 8.6% 7,150,126 October 19, 2026
Oaktop Capital Management II, L.P.13G, passive 5.35% 4,394,525 May 15, 2025

Latest filings below 5%: Wood River Capital, LLC 0% (September 24, 2026); Needham Investment Management L.L.C. 3.9% (August 13, 2026); The Vanguard Group 0% (March 26, 2026); Fmr LLC 1.5% (February 12, 2025).

Largest institutional holders

Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 180 managers reported a position.

HolderSharesValueChange on quarter
Kim, LLC12,280,426$77.9M0
BlackRock, Inc.5,277,148$33.5M+534,072
Oaktop Capital Management II, L.P.5,168,674$32.8M0
Vanguard Capital Management LLC3,539,271$22.4M+103,115
Needham Investment Management LLC3,260,800$20.7M-1,257,975
George Kaiser Family Foundation3,167,322$20.1M0
State Street Corp2,559,495$16.2M+238,768
American Century Companies Inc2,510,042$15.9M+1,262,259
Jacobs Levy Equity Management, Inc2,058,083$13M+839,304
Ameriprise Financial Inc1,821,295$11.5M+314,916
Geode Capital Management, LLC1,770,425$11.2M+229,654
Rice Hall James & Associates, LLC1,635,259$10.4M+82,631
Invesco Ltd.1,619,972$10.3M-678,211
Gagnon Securities LLC1,535,812$9.7M-326,039
Dimensional Fund Advisors LP1,447,333$9.2M+190,853
Goldman Sachs Group Inc1,372,300$8.7M+472,787
Royce & Associates LP1,323,218$8.4M+336,705
Aqr Capital Management LLC1,276,346$8.1M+750,227
Millennium Management LLC1,190,616$7.5M-214,059
Marshall Wace, Llp1,146,707$7.3M-116,395

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

12 insiders reported holding 1,475,562 shares in total, about $9M at the last price.

HolderSharesAs of
Young Donald RPresident and CEO, Director 637,834 March 8, 2026
Whitaker Corby CChief Commercial Officer 205,315 March 8, 2026
Mitchell Steven RDirector 156,898 May 13, 2026
Noglows William PDirector 114,156 June 23, 2026
Landes GreggChief Operating Officer 102,931 March 8, 2026
Thoele Grant DouglasCFO & Treasurer 77,732 March 8, 2026
Deegan Glenn E.CAO, GC & Corp Secretary 66,033 September 30, 2026
Sweetnam James EDirector 36,321 May 13, 2026
Kool KathleenDirector 34,323 May 13, 2026
Robinson CariDirector 22,616 May 13, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about ASPN

What does Aspen Aerogels Inc do?

Aspen Aerogels Inc is a company in the Consumer discretionary sector, listed on NYSE as ASPN. Its shares trade on NYSE under the ticker ASPN.

What is Aspen Aerogels Inc's net worth?

Aspen Aerogels Inc has a market value (market cap) of $507.1M at the latest share price, and shareholders' equity of $184.4M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is Aspen Aerogels Inc profitable?

No. Over the twelve months to September 30, 2026 it reported a net loss of $130.3M on revenue of $214.3M.

How much revenue does Aspen Aerogels Inc make?

Over the twelve months to September 30, 2026 Aspen Aerogels Inc reported revenue of $214.3M. That is 39.3% less than a year earlier.

When did Aspen Aerogels Inc last report?

Its most recent periodic report is the quarterly report (10-Q) filed on November 5, 2026. It covers the period to September 30, 2026. Its newest filing of any kind is the insider trade from November 6, 2026.

When is Aspen Aerogels Inc's next earnings report?

Aspen Aerogels Inc's next report is expected around February 24, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

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Where the numbers come from

Financial figures are the values Aspen Aerogels Inc tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.