13F

Stock

Aspen Aerogels Inc

ASPN · held by 182 managers

Reported value

$197.6M

Holders

182

+2 new · −3 exited

Holders’ est. mark

−$5.33M

Price effect on 7 books still in the name

Largest holder

$34.8M

KIM, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
KIM, LLC12.3M$34.8M—Held
BlackRock, Inc.4.93M$13.9M—Held
Vanguard4.69M$13.3M—Held
OAKTOP CAPITAL MANAGEMENT II, L.P.4.39M$12.4M—Held
NEEDHAM INVESTMENT MANAGEMENT LLC4.35M$12.3M—Held
Invesco Ltd.4.13M$11.7M—Held
George Kaiser Family Foundation3.17M$8.96M—Held
State Street2.5M$7.08M—Held
DIMENSIONAL FUND ADVISORS LP2M$5.67M—Held
GEODE CAPITAL MANAGEMENT, LLC1.6M$4.53M—Held
JPMORGAN CHASE & CO1.48M$4.2M—Held
RICE HALL JAMES & ASSOCIATES, LLC1.42M$4.02M—Held
AMERIPRISE FINANCIAL INC1.38M$3.9M—Held
GOLDMAN SACHS GROUP INC1.29M$3.66M—Held
AMERICAN CENTURY COMPANIES INC1.16M$3.28M—Held
GAGNON SECURITIES LLC1.13M$3.21M—Held
Telemark Asset Management, LLC1M$2.83M—Held
MILLENNIUM MANAGEMENT LLC871K$2.46M—Held
Citadel866.2K$2.45M—Held
Samjo Management, LLC798.5K$2.26M—Held
TWO SIGMA INVESTMENTS, LP757.4K$2.14M—Held
BANK OF AMERICA CORP /DE/752.4K$2.13M−$3.11MCut−$3.54M
BNP PARIBAS FINANCIAL MARKETS691.3K$1.96M—Held
First Eagle Investment Management, LLC622.5K$1.76M—Held
FEDERATED HERMES, INC.564.5K$1.6M—Held
MARSHALL WACE, LLP554.2K$1.57M—Held
Jump Financial, LLC551.1K$1.56M—Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC540.3K$1.53M—Held
NORTHERN TRUST CORP539.2K$1.53M—Held
Palogic Value Management, L.P.525K$1.49M—Held
FirstWave Capital Management LLC372K$1.05M—Held
Icahn Capital369.9K$1.05M—Held
MORGAN STANLEY347.6K$983.8K−$1.44MCut−$3.85M
LOS ANGELES CAPITAL MANAGEMENT LLC118.7K$893.5K—Held
UBS Group AG315.3K$892.4K—Held
JANE STREET GROUP, LLC293.1K$829.6K—Held
Numerai GP LLC251.9K$712.8K—Held
CITIGROUP INC238.6K$675.3K—Held
DEUTSCHE BANK AG\223.1K$631.4K—Held
XTX Topco Ltd202K$571.7K—Held
Bank of New York Mellon Corp196.9K$557.2K—Held
FIRST TRUST ADVISORS LP196.6K$556.3K—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP191.2K$541.1K—Held
Inspire Investing, LLC166.9K$472.3K—Held
Graham Capital Management, L.P.158.8K$449.5K—Held
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND157.4K$445.4K—Held
Sargent Investment Group, LLC141.6K$400.7K—Held
JACOBS LEVY EQUITY MANAGEMENT, INC140.1K$396.5K—Held
Swiss National Bank135.2K$382.6K—Held
Mitsubishi UFJ Asset Management Co., Ltd.131.5K$379.9K—Held
Nuveen, LLC133.9K$378.8K—Held
IRONWOOD INVESTMENT MANAGEMENT LLC127.5K$360.7K—Held
Firsthand Capital Management, Inc.125K$353.8K—Held
STATE OF WISCONSIN INVESTMENT BOARD120.2K$340.3K—Held
Engineers Gate Manager LP119.2K$337.4K—Held
ALPS ADVISORS INC116.4K$329.3K—Held
EntryPoint Capital, LLC110.1K$311.7K—Held
BARCLAYS PLC109.5K$310K−$410.4KCut−$381.6K
TWO SIGMA ADVISERS, LP104.3K$295.2K—Held
Dynamic Technology Lab Private Ltd103.3K$292K—Held
IMC-Chicago, LLC102.9K$291.3K—Held
RBF Capital, LLC100K$283K—Held
Assenagon Asset Management S.A.97K$274.5K—Held
Verition Fund Management LLC97K$274.4K—Held
Russell Investments Group, Ltd.95.7K$270.7K—Held
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC94.6K$267.7K—Held
RHUMBLINE ADVISERS89.3K$252.8K—Held
Jain Global LLC87.8K$248.6K—Held
WELLS FARGO & COMPANY/MN82.2K$232.5K—Held
TUDOR INVESTMENT CORP ET AL79.2K$224.1K−$327KCut−$3.16M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM78.5K$222K—Held
OPPENHEIMER & CO INC77K$218K—Held
Legal & General Group Plc67.1K$190K—Held
ExodusPoint Capital Management, LP65.5K$185.3K—Held
WJ Financial Advisors LLC64.8K$183.4K—Held
ALLIANCEBERNSTEIN L.P.64.1K$181.4K—Held
Aristides Capital LLC62.4K$176.6K—Held
CONNORS INVESTOR SERVICES INC55.2K$156.1K—Held
LPL Financial LLC55.1K$155.9K—Held
Odyssean, LLC41.8K$118.2K—Held
AWM Investment Company, Inc.41.1K$116.3K—Held
ARS Investment Partners, LLC40.8K$115.4K—Held
Caption Management, LLC36.1K$102.2K—Held
Quadrature Capital Ltd35.6K$100.7K—Held
PharVision Advisers, LLC33.8K$95.7K—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.30.8K$87.2K—Held
JANUS HENDERSON GROUP PLC30.5K$86.3K—Held
Concurrent Investment Advisors, LLC30K$84.9K—Held
Lighthouse Investment Partners, LLC30K$84.9K—Held
MetLife Investment Management, LLC27.2K$76.8K—Held
INTECH INVESTMENT MANAGEMENT LLC25.4K$71.8K—Held
JOURNEY STRATEGIC WEALTH LLC25.2K$71.2K—Held
OXFORD ASSET MANAGEMENT LLP24.1K$68.2K—New
HSBC HOLDINGS PLC23.3K$66K—Held
D. E. Shaw & Co., Inc.23.2K$65.7K—Held
Centiva Capital, LP21.2K$60.1K—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE21.2K$59.9K—Held
Schonfeld Strategic Advisors LLC20.4K$57.6K—Held
Voleon Capital Management LP19.7K$55.7K—Held
ARIZONA STATE RETIREMENT SYSTEM19.3K$54.7K—Held
AlphaQuest LLC18.2K$51.4K—Held
CHOREO, LLC16.8K$49.6K—Held
Police & Firemen's Retirement System of New Jersey16.7K$47.2K—Held
NEW YORK STATE COMMON RETIREMENT FUND16.2K$45.9K—Held
TWO SIGMA SECURITIES, LLC16K$45.3K—Held
Legato Capital Management LLC15.6K$44K—Held
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM14.6K$41.4K—Held
WOODMONT INVESTMENT COUNSEL LLC14.6K$41.3K—Held
StoneX Group Inc.14.5K$41K—Held
GROUP ONE TRADING LLC14.3K$40.3K—Held
WINTON GROUP Ltd14.2K$40.2K—Held
KLP KAPITALFORVALTNING AS13.8K$39.1K—Held
VOYA INVESTMENT MANAGEMENT LLC12.4K$35K—Held
ProShare Advisors LLC12.1K$34.3K—Held
CANADA PENSION PLAN INVESTMENT BOARD11.9K$33.7K—Held
Jefferson Bridge Capital, LLC11.4K$32.4K—Held
Baird Financial Group, Inc.11.3K$32.1K—Held
IFP Advisors, Inc11.3K$32K−$46.6KCut−$51.8K
OSAIC HOLDINGS, INC.10.8K$30.6K—Held
Zurcher Kantonalbank (Zurich Cantonalbank)10.7K$30.3K—Held
DRIVE WEALTH MANAGEMENT, LLC10.7K$30.2K—Held
Caitong International Asset Management Co., Ltd10.6K$30K—Held
Balance Wealth, LLC10.3K$29.1K—Held
Cannell & Spears LLC10K$28.3K—Held
Choate Investment Advisors10K$28.3K—Held
Quaker Wealth Management, LLC8.47K$24K—Held
SBI Securities Co., Ltd.7.67K$21.7K—Held
Strategic Investment Solutions, Inc. /IL7.01K$19.8K—New
Banque Cantonale Vaudoise6.36K$18K—Held
Optiver Holding B.V.6.05K$17.1K—Held
Fidelity5.77K$16.3K—Held
Ameritas Investment Partners, Inc.5.71K$16.2K—Held
SIMPLEX TRADING, LLC4.83K$13.7K—Held
Tower Research Capital LLC (TRC)4.73K$13.4K—Held
ROYAL BANK OF CANADA4.35K$13K—Held
Gunpowder Capital Management, LLC dba Oliver Wealth Management3.86K$10.9K—Held
MAI Capital Management3.65K$10.3K—Held
Sterling Capital Management LLC3.53K$10K—Held
Performa Ltd (US), LLC3.25K$9.2K—Held
Quarry LP2.67K$7.56K—Held
BOKF, NA2K$5.66K—Held
JONES FINANCIAL COMPANIES LLLP1.75K$4.94K—Held
Larson Financial Group LLC1.06K$3.01K—Held
GGM Financials LLC1.01K$2.86K—Held
GAMMA Investing LLC936$2.65K—Held
Cornerstone Planning Group LLC750$2.57K—Held
Walleye Capital LLC834$2.36K—Held
US BANCORP \DE\739$2.09K—Held
Rachor Investment Advisory Services, LLC690$1.95K—Held
Quantbot Technologies LP595$1.68K—Held
Allworth Financial LP419$1.19K−$1.73KCut−$4.72K
Stone House Investment Management, LLC405$1.15K—Held
Minot DeBlois Advisors LLC300$849—Held
SG Americas Securities, LLC263.4K$745—Held
HighMark Wealth Management LLC250$707—Held
SIGNATUREFD, LLC234$662—Held
NATIONAL BANK OF CANADA /FI/200$566—Held
Rockefeller Capital Management L.P.200$566—Held
Morse Asset Management, Inc175$495—Held
Strategic Wealth Partners, Ltd.156$441—Held
PRICE T ROWE ASSOCIATES INC /MD/98.3K$279—Held
Smartleaf Asset Management LLC85$251—Held
Parkside Financial Bank & Trust80$227—Held
Farther Finance Advisors, LLC80$226—Held
Sunbelt Securities, Inc.63$178—Held
Essential Partners LLC56$158−$232Cut−$1.3K
ALGERT GLOBAL LLC55.8K$158—Held
PNC Financial Services Group, Inc.56$158—Held
ROTHSCHILD INVESTMENT LLC55$156—Held
Colonial Trust Advisors50$142—Held
ACADIAN ASSET MANAGEMENT LLC43.8K$122—Held
COMERICA BANK28$78—Held
Asset Planning,Inc25$71—Held
True Wealth Design, LLC18$51—Held
Janney Montgomery Scott LLC14.1K$40—Held
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO6.09K$17—Held
First PREMIER Bank4K$11—Held
State of Alaska, Department of Revenue3.38K$9—Held
Covestor Ltd2.46K$7—Held
AMALGAMATED BANK2.08K$6—Held
CWM, LLC1.76K$5—Held
BESSEMER GROUP INC730$2—Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.