Skip to content
Disclosery

ASPN ASPEN AEROGELS INC

Follow

COMMON STOCK (common), issuer CIK 1145986

181 managers (183 13F filers) reported a position in ASPN shares at 2025-12-31, 70,099,740 shares in all. 36 filers opened a position and 58 filers sold out during the quarter.

Managers
181
13F filers
183
New
36
Added
46
Reduced
64
Sold out
58
Shares held by filers
70,099,740

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
KIM, LLC12,280,426$34.8M3.98%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.4,929,239$13.9M<0.01%-48,31913F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC4,685,950$13.3M<0.01%+175,58013F-HRTimelineGroup
OAKTOP CAPITAL MANAGEMENT II, L.P.4,394,525$12.4M1.05%013F-HRTimeline
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…4,351,700$12.3M0.78%+912,00013F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.4,129,934$11.7M<0.01%+2,907,55813F-HRTimelineGroup
George Kaiser Family Foundation3,167,322$8.96M1.2%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,501,469$7.08M<0.01%+556,83313F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,003,963$5.67M<0.01%-248,05013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,602,049$4.53M<0.01%+17,17813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,483,745$4.2M<0.01%+133,99613F-HRTimelineGroup
RICE HALL JAMES & ASSOCIATES, LLC1,421,605$4.02M0.22%+13,87913F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,378,284$3.9M<0.01%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,294,928$3.66M<0.01%-124,87613F-HR/ATimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,157,978$3.28M<0.01%+686,66613F-HRTimelineGroup
GAGNON SECURITIES LLCgroup of 2 filers holding1,133,248$3.21M-1,187,155Timeline
Telemark Asset Management, LLC1,000,000$2.83M0.28%-792,42413F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC870,951$2.46M<0.01%-576,56613F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC866,218$2.45M<0.01%-248,37213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding861,719$2.44M-54,309Timeline
Samjo Management, LLC798,525$2.26M0.87%+457,70013F-HR/ATimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/752,430$2.13M<0.01%-62,41913F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS691,270$1.96M<0.01%-87813F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…622,487$1.76M<0.01%+105,16413F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.564,486$1.6M<0.01%+274,55513F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP554,180$1.57M<0.01%+241,99013F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC551,071$1.56M0.02%+12,77113F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co540,323$1.53M<0.01%-32,26513F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP539,168$1.53M<0.01%-74,43013F-HRTimelineGroup
Palogic Value Management, L.P.525,000$1.49M0.64%+325,00013F-HRTimeline
UBS Group AGgroup of 2 filers holding409,937$1.16M-81,461Timeline
FirstWave Capital Management LLC372,001$1.05M0.63%13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC369,949$1.05M<0.01%+192,14413F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY347,648$984K<0.01%-346,84013F-HR/ATimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC118,664$894K<0.01%-20,54913F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC293,150$830K<0.01%+132,02513F-HRTimelineGroup
SG Americas Securities, LLC263,354$745K<0.01%+182,93113F-HRTimeline
Numerai GP LLC251,888$713K0.09%+233,60813F-HRTimeline
CITIGROUP INCin group CITIGROUP INC238,631$675K<0.01%+28,08613F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\223,093$631K<0.01%+2,88013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd202,030$572K0.02%+179,23113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp196,903$557K<0.01%-18,04513F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP196,566$556K<0.01%+59813F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…191,204$541K<0.01%+22,35713F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC166,874$472K0.04%+100,75913F-HRTimelineGroup
Graham Capital Management, L.P.158,839$450K0.02%+52,95913F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…157,400$445K<0.01%new13F-HRTimeline
Sargent Investment Group, LLC141,607$401K0.05%-47,62013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC140,113$397K<0.01%new13F-HRTimeline
Swiss National Bank135,200$383K<0.01%013F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…131,468$380K<0.01%+61,29113F-HRTimelineGroup
Nuveen, LLCin group TIAA133,867$379K<0.01%013F-HRTimelineGroup
IRONWOOD INVESTMENT MANAGEMENT LLC127,460$361K0.15%-6,90213F-HRTimeline
Firsthand Capital Management, Inc.125,000$354K0.66%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD120,238$340K<0.01%-136,55213F-HRTimeline
Engineers Gate Manager LP119,227$337K<0.01%new13F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC116,372$329K<0.01%-7,30513F-HRTimelineGroup
EntryPoint Capital, LLC110,142$312K0.12%+44,96913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC109,528$310K<0.01%+10,16313F-HRTimelineGroup
Dynamic Technology Lab Private Ltd103,281$292K0.07%new13F-HRTimeline
IMC-Chicago, LLC102,930$291K0.01%-26713F-HRTimeline
RBF Capital, LLC100,000$283K0.01%new13F-HR/ATimeline
PRICE T ROWE ASSOCIATES INC /MD/98,299$279K<0.01%+21,67313F-HRTimeline
Assenagon Asset Management S.A.97,002$275K<0.01%new13F-HRTimeline
Verition Fund Management LLC96,973$274K<0.01%+31,01113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…95,651$271K<0.01%-38,59613F-HRTimelineGroup
RHUMBLINE ADVISERS89,318$253K<0.01%-21,41413F-HRTimeline
Jain Global LLC87,835$249K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN82,170$233K<0.01%+28,40113F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL79,171$224K<0.01%-407,42513F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…78,454$222K<0.01%+17,78413F-HRTimeline
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …77,021$218K<0.01%-44,80513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc67,130$190K<0.01%013F-HRTimelineGroup
ExodusPoint Capital Management, LP65,470$185K<0.01%-50,95213F-HRTimeline
WJ Financial Advisors LLC64,815$183K0.16%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.64,090$181K<0.01%013F-HRTimeline
Aristides Capital LLC62,400$177K0.06%new13F-HR/ATimeline
ALGERT GLOBAL LLC55,835$158K<0.01%-38,82013F-HR/ATimeline
CONNORS INVESTOR SERVICES INC55,167$156K0.01%+15,00013F-HRTimeline
LPL Financial LLC55,076$156K<0.01%-55,78113F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC43,842$122K<0.01%new13F-HRTimelineGroup
Odyssean, LLC41,759$118K0.08%13F-HRTimeline
AWM Investment Company, Inc.41,092$116K0.01%-1,514,38513F-HRTimeline
ARS Investment Partners, LLC40,765$115K0.01%-19,24213F-HRTimeline
Caption Management, LLC36,100$102K<0.01%+6,10013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd35,583$101K<0.01%+25,37313F-HRTimelineGroup
PharVision Advisers, LLC33,808$95.7K0.05%new13F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…30,799$87.2K<0.01%-36013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson30,455$86.3K<0.01%013F-HRTimelineGroup
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…30,000$84.9K<0.01%new13F-HRTimelineGroup
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…30,000$84.9K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…27,154$76.8K<0.01%-3,28913F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC25,382$71.8K<0.01%-19,58213F-HRTimeline
JOURNEY STRATEGIC WEALTH LLC25,157$71.2K<0.01%new13F-HRTimeline
OXFORD ASSET MANAGEMENT LLP24,083$68.2K0.02%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC23,326$66K<0.01%new13F-HR/ATimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.23,217$65.7K<0.01%+9,99513F-HRTimelineGroup
Centiva Capital, LP21,247$60.1K<0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …21,163$59.9K<0.01%-1,55513F-HRTimelineGroup
Schonfeld Strategic Advisors LLC20,350$57.6K<0.01%new13F-HRTimeline
Voleon Capital Management LP19,675$55.7K<0.01%-118,86313F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM19,323$54.7K<0.01%-1,34513F-HRTimeline
AlphaQuest LLC18,154$51.4K<0.01%013F-HRTimeline
CHOREO, LLC16,828$49.6K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…16,663$47.2K<0.01%-4,44613F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND16,231$45.9K<0.01%-703,79313F-HRTimeline
TWO SIGMA SECURITIES, LLC16,005$45.3K0.01%new13F-HRTimeline
Legato Capital Management LLC15,562$44K<0.01%-78,24413F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…14,618$41.4K<0.01%013F-HRTimeline
WOODMONT INVESTMENT COUNSEL LLC14,603$41.3K<0.01%013F-HRTimeline
StoneX Group Inc.in group StoneX Group Inc.14,474$41K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC14,257$40.3K<0.01%new13F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd14,200$40.2K<0.01%new13F-HRTimelineGroup
Janney Montgomery Scott LLC14,093$40K<0.01%-6,95013F-HRTimeline
KLP KAPITALFORVALTNING AS13,800$39.1K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC12,359$35K<0.01%013F-HRTimelineGroup
ProShare Advisors LLC12,118$34.3K<0.01%+78013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD11,900$33.7K<0.01%new13F-HRTimeline
Jefferson Bridge Capital, LLC11,450$32.4K0.03%13F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.11,344$32.1K<0.01%-353,07913F-HRTimelineGroup
IFP Advisors, Inc11,291$32K<0.01%-74113F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.10,799$30.6K<0.01%-2,72813F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…10,703$30.3K<0.01%013F-HRTimeline
DRIVE WEALTH MANAGEMENT, LLC10,655$30.2K0.01%new13F-HRTimeline
Caitong International Asset Management …10,586$30K0.01%new13F-HR/ATimeline
Balance Wealth Partners LLC10,297$29.1K0.01%new13F-HRTimeline
Choate Investment Advisors10,000$28.3K<0.01%013F-HRTimeline
Cannell & Spears LLC10,000$28.3K<0.01%013F-HRTimeline
Quaker Wealth Management, LLC8,472$24K0.01%new13F-HRTimeline
SBI Securities Co., Ltd.7,671$21.7K<0.01%+69613F-HRTimeline
Strategic Investment Solutions, Inc. /IL7,010$19.8K<0.01%new13F-HRTimeline
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise6,358$18K<0.01%-2,99113F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.6,046$17.1K<0.01%+5,19813F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…6,088$17K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC5,769$16.3K<0.01%-89413F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…5,708$16.2K<0.01%013F-HRTimelineGroup
SIMPLEX TRADING, LLC4,832$13.7K<0.01%-11,41913F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,733$13.4K<0.01%+86813F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA4,354$13K<0.01%-382,68013F-HRTimelineGroup
First PREMIER Bank4,000$11K<0.01%013F-HRTimeline
Gunpowder Capital Management, LLC dba O…3,863$10.9K0.01%13F-HRTimeline
MAI Capital Management3,651$10.3K<0.01%+1,00013F-HRTimeline
Sterling Capital Management LLC3,533$10K<0.01%-1,04213F-HRTimeline
Performa Ltd (US), LLC3,250$9.2K<0.01%new13F-HRTimeline
State of Alaska, Department of Revenue3,385$9K<0.01%013F-HRTimeline
Quarry LP2,670$7.56K<0.01%+1,52113F-HRTimeline
Covestor Ltd2,460$7K<0.01%+2,44613F-HRTimeline
AMALGAMATED BANK2,083$6K<0.01%-4713F-HRTimeline
BOKF, NAin group BOKF, NA2,000$5.66K<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC1,764$5K<0.01%-5,73313F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,745$4.94K<0.01%-80013F-HRTimelineGroup
Larson Financial Group LLC1,064$3.01K<0.01%+68913F-HRTimeline
GGM Financial LLC1,010$2.86K<0.01%013F-HRTimeline
GAMMA Investing LLC936$2.65K<0.01%-55313F-HRTimeline
Cornerstone Planning Group LLC750$2.57K<0.01%+67513F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC834$2.36K<0.01%new13F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\739$2.09K<0.01%-2,59913F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC730$2K<0.01%new13F-HRTimelineGroup
Rachor Investment Advisory Services, LLC690$1.95K<0.01%13F-HRTimeline
Quantbot Technologies LP595$1.68K<0.01%-157,98813F-HRTimeline
Allworth Financial LP419$1.19K<0.01%-43013F-HRTimeline
Stone House Investment Management, LLC405$1.15K<0.01%new13F-HRTimeline
Minot DeBlois Advisors LLC300$849<0.01%013F-HRTimeline
HighMark Wealth Management LLC250$707<0.01%013F-HRTimeline
SIGNATUREFD, LLC234$662<0.01%-1,10313F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/200$566<0.01%-32713F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…200$566<0.01%013F-HR/ATimelineGroup
Morse Asset Management, Inc175$495<0.01%-50013F-HRTimeline
Strategic Wealth Partners, Ltd.156$441<0.01%-43813F-HRTimeline
Basecamp Wealth Advisors LLC108$306<0.01%13F-HRTimeline
Smartleaf Asset Management LLC85$251<0.01%013F-HRTimeline
Parkside Financial Bank & Trust80$227<0.01%013F-HRTimeline
Farther Finance Advisors, LLC80$226<0.01%+7913F-HRTimeline
Sunbelt Securities, Inc.63$178<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…56$158<0.01%-10113F-HRTimelineGroup
Essential Partners LLC56$158<0.01%-15413F-HRTimeline
ROTHSCHILD INVESTMENT LLC55$156<0.01%-15013F-HRTimeline
Colonial Trust Advisorsin group Colonial Trust Advisors50$142<0.01%013F-HRTimelineGroup
COMERICA BANK28$78<0.01%-6513F-HRTimeline
Asset Planning,Inc25$71<0.01%013F-HRTimeline
True Wealth Design, LLC18$51<0.01%new13F-HRTimeline