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Aspen Aerogels Inc

ASPN
Exchange
NYSE
Industry
Wholesale-Lumber & Other Construction Materials
SEC CIK
0001145986

In the last 90 days, Aspen Aerogels Inc insiders filed 0 open-market purchases and 1 sale; 179 institutions reported holding it in 13F filings for Q2 2026, worth $464.9M in total; no superinvestor holds it.

13F holders, Q2 2023

Institutional positions in Aspen Aerogels Inc as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
159
+4 vs. Q1 2023
Shares held
66.5M
−676.1K (−1.0%) vs. Q1 2023
Total value
$524.6M
+$26.0M (+5.2%) vs. Q1 2023
New holders
29
69 more added
Sold out
25
39 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ASPN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 159 institutions
Q1 2021: 85 institutionsQ2 2021: 115 institutionsQ3 2021: 130 institutionsQ4 2021: 159 institutionsQ1 2022: 145 institutionsQ2 2022: 148 institutionsQ3 2022: 140 institutionsQ4 2022: 164 institutionsQ1 2023: 156 institutionsQ2 2023: 159 institutionsQ3 2023: 159 institutionsQ4 2023: 170 institutionsQ1 2024: 167 institutionsQ2 2024: 222 institutionsQ3 2024: 243 institutionsQ4 2024: 231 institutionsQ1 2025: 221 institutionsQ2 2025: 182 institutionsQ3 2025: 204 institutionsQ4 2025: 183 institutionsQ1 2026: 166 institutionsQ2 2026: 179 institutions
Value heldQ2 2023: $524.6M
Q1 2021: $482.2MQ2 2021: $849.9MQ3 2021: $1.27BQ4 2021: $1.42BQ1 2022: $1.09BQ2 2022: $366.3MQ3 2022: $344.0MQ4 2022: $793.4MQ1 2023: $498.6MQ2 2023: $524.6MQ3 2023: $582.9MQ4 2023: $1.18BQ1 2024: $1.31BQ2 2024: $1.69BQ3 2024: $1.93BQ4 2024: $868.2MQ1 2025: $455.4MQ2 2025: $423.4MQ3 2025: $496.8MQ4 2025: $199.0MQ1 2026: $236.7MQ2 2026: $464.9M
Institutions holding ASPN and their total value by quarter
QuarterHoldersValue
Q2 2026179$464.9M
Q1 2026166$236.7M
Q4 2025183$199.0M
Q3 2025204$496.8M
Q2 2025182$423.4M
Q1 2025221$455.4M
Q4 2024231$868.2M
Q3 2024243$1.93B
Q2 2024222$1.69B
Q1 2024167$1.31B
Q4 2023170$1.18B
Q3 2023159$582.9M
Q2 2023159$524.6M
Q1 2023156$498.6M
Q4 2022164$793.4M
Q3 2022140$344.0M
Q2 2022148$366.3M
Q1 2022145$1.09B
Q4 2021159$1.42B
Q3 2021130$1.27B
Q2 2021115$849.9M
Q1 202185$482.2M

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Aspen Aerogels Inc; share changes are against Q1 2023.

Institutions holding ASPN in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
State of Wisconsin Investment Board116,830$921.8K0.00%+7,496+6.9%Added
Potomac Capital Management, Inc.117,226$924.9K1.28%+12,226+11.6%Added
Bank of America Corp124,617$983.2K0.00%+15,373+14.1%Added
Rice Hall James & Associates, LLC128,473$1.01M0.06%+128,473New
Susquehanna International Group, LLP129,891$1.02M0.00%−27,285−17.4%Reduced
Redwood Grove Capital, LLC133,210$1.05M0.44%00.0%Unchanged
Swiss National Bank137,300$1.08M0.00%+8,800+6.8%Added
Charles Schwab Investment Management Inc144,904$1.14M0.00%+8,070+5.9%Added
Greenwood Capital Associates LLC157,492$1.24M0.17%+35,712+29.3%Added
Yaupon Capital Management LP167,078$1.32M0.18%−182,414−52.2%Reduced
Morgan Stanley168,508$1.33M0.00%−250,125−59.7%Reduced
UBS Group AG178,454$1.41M0.00%+15,834+9.7%Added
Bank of New York Mellon Corp212,251$1.67M0.00%+27,112+14.6%Added
Trellus Management Company, LLC220,000$1.74M2.67%+38,137+21.0%Added
Kennedy Capital Management, Inc.221,710$1.75M0.04%+44,264+24.9%Added
Voloridge Investment Management, LLC225,665$1.78M0.01%+178+0.1%Added
Renaissance Technologies LLC227,400$1.79M0.00%+193,900+578.8%Added
Marshall Wace, LLP232,641$1.84M0.00%−685,964−74.7%Reduced
Palogic Value Management, L.P.250,000$1.97M0.93%+56,400+29.1%Added
Sargent Investment Group, LLC257,855$2.03M0.49%+71,090+38.1%Added
Zevenbergen Capital Investments LLC275,562$2.17M0.05%+46,615+20.4%Added
CastleKnight Management LP310,200$2.45M0.50%−41,400−11.8%Reduced
Point72 Asset Management, L.P.314,032$2.48M0.01%−74,743−19.2%Reduced
UBS Asset Management Americas Inc339,741$2.53M0.00%00.0%Unchanged
Silvercrest Asset Management Group LLC323,802$2.55M0.02%+38,986+13.7%Added
Deutsche Bank AG338,491$2.67M0.00%−14,237−4.0%Reduced
Goldman Sachs Group Inc362,334$2.86M0.00%+9,733+2.8%Added
Millennium Management LLC417,708$3.30M0.00%−853,032−67.1%Reduced
Citadel Advisors LLC429,658$3.39M0.00%−255,861−37.3%Reduced
Baird Financial Group, Inc.496,539$3.92M0.01%+39,525+8.6%Added
Northern Trust Corp534,436$4.22M0.00%+16,918+3.3%Added
New York State Common Retirement Fund554,796$4.38M0.01%+55,127+11.0%Added
ExodusPoint Capital Management, LP569,985$4.50M0.05%+154,574+37.2%Added
Caption Management, LLC602,948$4.76M0.84%+528,948+714.8%Added
Driehaus Capital Management LLC613,233$4.84M0.06%−10,612−1.7%Reduced
Algert Global LLC630,594$4.98M0.22%+263,330+71.7%Added
Federated Hermes, Inc.750,000$5.92M0.01%00.0%Unchanged
Penn Capital Management Co Inc765,021$6.04M0.59%−128,546−14.4%Reduced
Redwood Investments, LLC784,545$6.19M0.76%+181,809+30.2%Added
UniSuper Management Pty Ltd954,862$7.53M0.09%+954,862New
Ameriprise Financial Inc976,534$7.70M0.00%+119,671+14.0%Added
AMH Equity Ltd1,000,000$7.89M9.02%+1,000,000New
Essex Investment Management Co LLC1,011,471$7.98M1.11%+300,464+42.3%Added
Geode Capital Management, LLC1,066,685$8.42M0.00%+89,261+9.1%Added
Royce & Associates LP1,102,883$8.70M0.08%+130,500+13.4%Added
Nuveen Asset Management, LLC1,154,431$9.11M0.00%+165,255+16.7%Added
State Street Corp1,193,127$9.41M0.00%+5,432+0.5%Added
Ardsley Advisory Partners LP1,511,678$11.9M2.69%+765,678+102.6%Added
Telemark Asset Management, LLC1,555,000$12.3M1.66%−135,000−8.0%Reduced
AWM Investment Company, Inc.1,661,580$13.1M1.78%+40,724+2.5%Added
Samjo Capital LLC1,740,000$13.7M11.51%+420,000+31.8%Added
Cowen Prime Advisors LLC1,911,500$15.1M5.19%+244,700+14.7%Added
Needham Investment Management LLC2,268,300$17.9M2.95%+160,750+7.6%Added
FMR LLC2,318,811$18.3M0.00%−15,726−0.7%Reduced
George Kaiser Family Foundation3,167,322$25.0M4.28%00.0%Unchanged
Oaktop Capital Management II, L.P.3,194,758$25.2M3.83%00.0%Unchanged
Vanguard Group Inc3,431,874$27.1M0.00%−3,989−0.1%Reduced
BlackRock Inc.3,852,411$30.4M0.00%+364,579+10.5%Added
Kim, LLC15,780,426$124.5M10.65%00.0%Unchanged
Encompass Capital Advisors LLC0$00.00%−1,935,757−100.0%Sold out
J. Goldman & Co LP0$00.00%−534,665−100.0%Sold out
Assenagon Asset Management S.A.0$00.00%−429,352−100.0%Sold out
Clear Sky Advisers, LLC0$00.00%−358,700−100.0%Sold out
Two Sigma Investments, LP0$00.00%−310,291−100.0%Sold out
Prescott Group Capital Management, L.L.C.0$00.00%−260,766−100.0%Sold out
Trexquant Investment LP0$00.00%−96,920−100.0%Sold out
Walleye Capital LLC0$00.00%−79,912−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−77,788−100.0%Sold out
Journey Strategic Wealth LLC0$00.00%−67,000−100.0%Sold out
Simplex Trading, LLC0$00.00%−53,586−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−46,642−100.0%Sold out
Quantbot Technologies LP0$00.00%−38,080−100.0%Sold out
Axq Capital, LP0$00.00%−35,997−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−33,155−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−33,015−100.0%Sold out
Versor Investments LP0$00.00%−28,200−100.0%Sold out
Tilt Investment Management Holdings, PBC0$00.00%−22,413−100.0%Sold out
Innovis Asset Management LLC0$00.00%−14,413−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−13,394−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−12,300−100.0%Sold out
Quent Capital, LLC0$00.00%−8,000−100.0%Sold out
Parallel Advisors, LLC0$00.00%−78−100.0%Sold out
Creative Planning0$00.00%−72−100.0%Sold out
WealthPLAN Partners, LLC0$00.00%−10−100.0%Sold out
Ahrens Investment Partners LLC––––Not filed