13FPulse
AS

ASPN ASPEN AEROGELS INC

2026Q2 · CUSIP 04523Y105 · Sector: Consumer

Normal

Fund flows are within the usual range

Funds that own it
175
Institutions that reported holding it to the SEC
Net increase in holders
+11
Last quarter 164 → now 175
How unusual is that
Above average
Stronger buying than 71% of US stocks
What the filings say, in one paragraph

175 funds held ASPN at the end of 2026Q2, up 11 from the quarter before. Fund flows are within the usual range — nothing unusual. On the business itself, revenue over the last 12 months was $202M(YoY -49.1%), return on equity is -65.6%. ASPN has had 10 buying rushes in its history, and the price moved -23.3% on average over the six months after (that is the raw price move, not how much it beat the market by). It sits in the Consumer sector.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2014Q3: holders=42 2014Q4: holders=38 2015Q1: holders=45 2015Q2: holders=45 2015Q3: holders=55 2015Q4: holders=47 2016Q1: holders=54 2016Q2: holders=58 2016Q3: holders=52 2016Q4: holders=53 2017Q1: holders=43 2017Q2: holders=44 2017Q3: holders=50 2017Q4: holders=47 2018Q1: holders=50 2018Q2: holders=44 2018Q3: holders=43 2018Q4: holders=36 2019Q1: holders=34 2019Q2: holders=36 2019Q3: holders=41 2019Q4: holders=48 2020Q1: holders=60 2020Q2: holders=67 2020Q3: holders=72 2020Q4: holders=76 2021Q1: holders=85 2021Q2: holders=116 2021Q3: holders=129 2021Q4: holders=158 2022Q1: holders=144 2022Q2: holders=149 2022Q3: holders=138 2022Q4: holders=164 2023Q1: holders=154 2023Q2: holders=156 2023Q3: holders=157 2023Q4: holders=168 2024Q1: holders=167 2024Q2: holders=220 2024Q3: holders=243 2024Q4: holders=231 2025Q1: holders=219 2025Q2: holders=182 2025Q3: holders=205 2025Q4: holders=182 2026Q1: holders=164 2026Q2: holders=175 -53 -26.5 +0 +26.5 +53 30143256 14Q316Q117Q319Q120Q322Q123Q325Q126Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 10 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2025Q3 Top 20% +18.3% +66.7%
2024Q3 Top 20% -44.6% -55.7%
2024Q2 Top 5% -49.5% -72.3%
2022Q4 Top 20% -41.7% -55.1%
2021Q4 Top 20% -40.1% -49.9%
2021Q3 Top 20% -58.1% -73.3%
2021Q2 Top 10% +59.4% -29.0%
2020Q1 Top 10% +40.9% +77.7%
2015Q3 Top 20% -32.4% -29.0%
2014Q3 Top 10% +6.5% -13.5%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
90
Change in large funds
+9
Total value they hold
$463M
Funds buying for the first time
37
Funds that sold out entirely
26
Price change that quarter
-7.7%
Funds holding puts (bearish)
3
Funds holding calls (bullish)
5

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
EPS (TTM)
$-1.52
EPS YoY
Revenue (TTM)
$0.2B
Revenue YoY
-49.1%
Net margin
-62.5%
ROE
-65.6%
Debt ratio
51.0%
FCF (TTM)
$34M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2023-03-31: EPS -0.24 2023-06-30: EPS -0.22 2023-09-30: EPS -0.19 2023-12-31: EPS -0.01 2024-03-31: EPS -0.02 2024-06-30: EPS 0.21 2024-09-30: EPS -0.17 2025-03-31: EPS -3.67 2025-06-30: EPS -0.11 2025-09-30: EPS -0.08 2025-12-31: EPS -0.87 2026-03-31: EPS -0.29 2026-06-30: EPS -0.28 0M 62M 123M $M -4.04 -1.90 0.23 2016201720182019202020212022202320242025202606/26 Revenue EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

P/E (TTM) over time
1285 1392 1499 202420252026

P/E = close around day 47 after quarter-end ÷ TTM EPS then; this is a consistent valuation date, not the company’s actual filing date; loss quarters hidden

Quarterly free cash flow
-104M-36M33M 20162017201820192020202120222023202420252026
Latest quarter $33M (2026-03-31)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-06-30 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.