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Disclosery

ASPI ASP ISOTOPES INC

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COM (common), issuer CIK 1921865

179 managers (185 13F filers) reported a position in ASPI shares at 2026-06-30, 65,419,972 shares in all. 37 filers opened a position and 28 filers sold out during the quarter.

Managers
179
13F filers
185
New
37
Added
74
Reduced
51
Sold out
28
Shares held by filers
65,419,972

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
BlackRock, Inc.in group BlackRock, Inc.9,217,198$57.3M<0.01%+889,05413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding7,032,350$43.7M+95,955Timeline
Encompass Capital Advisors LLCin group Encompass Capital Advisors LLC6,561,754$40.8M1.76%-350,30013F-HRTimelineGroup
Rovida Investment Management Ltd4,100,000$25.5M1.74%013F-HRTimeline
UBS Group AGgroup of 2 filers holding3,408,852$21.2M+454,667Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,945,901$18.3M<0.01%+205,43713F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.2,843,503$17.7M0.05%+151,33713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,595,573$16.1M<0.01%+273,41413F-HRTimelineGroup
EXCHANGE TRADED CONCEPTS, LLC2,255,509$14M0.07%+71,95513F-HR/ATimeline
AWM Investment Company, Inc.1,581,490$9.84M0.85%-543,00613F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,577,016$9.81M0.01%+689,77113F-HRTimelineGroup
Philadelphia Financial Management of Sa…1,343,007$8.35M2.29%+694,66613F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,162,320$7.23M<0.01%-414,09313F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,007,214$6.26M<0.01%+69,69113F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co935,352$5.82M<0.01%+38,11613F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC847,781$5.27M<0.01%-165,17513F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP835,656$5.2M<0.01%new13F-HRTimelineGroup
Man Group plcin group Man Group plc828,377$5.15M0.01%new13F-HRTimelineGroup
Pacer Advisors, Inc.734,960$4.57M0.01%+231,03513F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/709,057$4.41M<0.01%+540,06013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…705,153$4.39M<0.01%-352,18713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC576,276$3.58M<0.01%+49,48113F-HRTimelineGroup
WIM INVESTMENT MANAGEMENT Ltd541,400$3.37M1.1%-60,00013F-HRTimeline
Diametric Capital, LP538,517$3.35M0.36%-414,98813F-HRTimeline
Nuveen, LLCin group TIAA493,421$3.07M<0.01%+285,97913F-HRTimelineGroup
GROUP ONE TRADING LLC458,383$2.85M0.08%-137,24213F-HRTimeline
Shay Capital LLC413,000$2.57M0.28%-16,50013F-HRTimeline
Rathbones Group PLC381,619$2.37M0.01%-4,94713F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC357,591$2.22M<0.01%-410,41513F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp356,872$2.22M<0.01%+67,86313F-HRTimelineGroup
Caprock Group, LLC321,365$2M0.04%+36513F-HRTimeline
HITE Hedge Asset Management LLC301,837$1.88M0.1%-24,39013F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/262,560$1.63M<0.01%+30,78713F-HRTimelineGroup
Saba Capital Management, L.P.in group Saba Capital Management, L.P.261,470$1.63M0.05%-96,15513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO241,054$1.5M<0.01%-32,40813F-HRTimelineGroup
Headlands Technologies LLC240,197$1.49M0.16%+165,03113F-HRTimeline
Empowered Funds, LLC225,089$1.4M0.01%+39,13613F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS214,880$1.34M<0.01%+155,09813F-HRTimelineGroup
Swiss National Bank214,700$1.34M<0.01%+4,60013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.203,976$1.27M<0.01%+147,34213F-HRTimelineGroup
Purewater Capital LLC194,387$1.21M0.87%-17,46413F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…181,776$1.13M<0.01%+36,14913F-HRTimelineGroup
Chicago Partners Investment Group LLC265,459$1.07M0.02%-108,61913F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP166,034$1.03M<0.01%+45,50913F-HRTimelineGroup
Aquatic Capital Management LLC163,978$1.02M0.04%new13F-HRTimeline
SBI Securities Co., Ltd.159,346$991K0.02%-5,29313F-HRTimeline
Cetera Investment Advisers152,965$951K<0.01%+38,14813F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC149,559$930K0.01%+26,58913F-HRTimeline
RHUMBLINE ADVISERS141,284$879K<0.01%+23,60613F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC123,951$771K<0.01%+53,35413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC121,309$755K<0.01%+46,14713F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…121,243$754K<0.01%+43,03113F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\120,367$749K<0.01%+26,70913F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.120,159$747K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN116,119$722K<0.01%+66,38613F-HRTimelineGroup
Polymer Capital Management (US) LLC105,494$656K0.1%new13F-HRTimeline
Marex Group Ltdin group Marex Group Ltd100,100$623K<0.01%+8,40013F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/100,000$622K<0.01%+13,88013F-HRTimelineGroup
Canal Insurance CO100,000$622K0.14%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/96,913$603K<0.01%+16,27213F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd94,512$588K0.02%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.89,876$559K<0.01%+35,90413F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc86,951$541K<0.01%+31,52513F-HRTimelineGroup
FNY Investment Advisers, LLC80,100$498K0.18%-6,50013F-HRTimeline
ALLIANCEBERNSTEIN L.P.107,790$476K<0.01%+69,03013F-HRTimeline
Pekin Hardy Strauss, Inc.74,450$463K0.04%-14,00013F-HRTimeline
Penn Capital Management Company, LLC70,757$440K0.03%-8,06513F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO69,796$434K<0.01%-78,85213F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…69,727$434K<0.01%+6,14013F-HRTimelineGroup
FORT WASHINGTON INVESTMENT ADVISORS INC…67,136$418K<0.01%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC66,505$414K0.03%-87,14513F-HRTimeline
Farther Finance Advisors, LLC62,618$389K<0.01%-87,59813F-HRTimeline
MH & ASSOCIATES SECURITIES MANAGEMENT C…62,265$387K0.35%+12,16913F-HRTimeline
Creative Planningin group Creative Planning55,779$347K<0.01%+14,19913F-HRTimelineGroup
Kingsview Wealth Management, LLC54,102$337K<0.01%new13F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…53,638$334K<0.01%+30613F-HRTimelineGroup
Bleakley Financial Group, LLC49,954$311K<0.01%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC48,021$299K<0.01%new13F-HRTimelineGroup
Ninety One SA (Pty) Ltd40,489$252K0.01%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…39,576$246K<0.01%+22,11013F-HRTimelineGroup
Jupiter Topco LLCin group Janus Henderson39,000$243K<0.01%13F-HRTimelineGroup
PFG Investments, LLC38,400$239K0.01%-113,90013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA38,232$238K<0.01%+27813F-HRTimelineGroup
Advisory Services Network, LLC34,162$212K<0.01%-6,08613F-HRTimeline
Police & Firemen's Retirement System of…33,888$211K<0.01%013F-HRTimeline
Sanctuary Advisors, LLC32,195$200K<0.01%+7,58013F-HRTimeline
KLP KAPITALFORVALTNING AS31,600$197K<0.01%013F-HRTimeline
Centiva Capital, LP31,526$196K0.01%-5,01813F-HRTimeline
Quantinno Capital Management LP31,087$193K<0.01%-1,98013F-HRTimeline
CenterBook Partners LP30,907$192K0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …30,656$191K<0.01%+15313F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC30,655$191K<0.01%+4,20413F-HRTimeline
LPL Financial LLC30,084$187K<0.01%-14,08513F-HRTimeline
Valeo Financial Advisors, LLC30,000$187K<0.01%new13F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …30,000$187K<0.01%new13F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM29,529$184K<0.01%+31913F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND29,200$182K<0.01%013F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC29,119$181K<0.01%+9,14713F-HRTimelineGroup
Integrated Wealth Concepts LLC28,316$176K<0.01%new13F-HRTimeline
Belpointe Asset Management LLC27,902$174K0.01%-73,66013F-HRTimeline
Cresset Asset Management, LLC27,304$170K<0.01%+2013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd26,789$167K<0.01%+14,86813F-HRTimelineGroup
Fortitude Advisory Group L.L.C.26,286$163K0.06%+25113F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…23,600$147K<0.01%013F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP23,365$145K<0.01%new13F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC22,091$137K<0.01%+2,94313F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC21,094$131K<0.01%-663,38513F-HRTimelineGroup
MML INVESTORS SERVICES, LLC20,859$130K<0.01%new13F-HRTimeline
Massar Capital Management, LP20,334$126K0.04%-127,04213F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …20,000$124K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS19,156$119K<0.01%-8,50013F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…19,056$119K<0.01%+7,72213F-HRTimelineGroup
Olympiad Research LP18,606$116K0.24%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC18,370$114K<0.01%+1,53013F-HRTimelineGroup
Persistent Asset Partners Ltd18,363$114K0.04%new13F-HRTimeline
Fielder Capital Group LLC18,083$112K0.02%013F-HRTimeline
Capital Asset Advisory Services LLC18,045$112K<0.01%new13F-HRTimeline
Brookwood Investment Group LLC18,000$112K0.01%013F-HRTimeline
FMR LLCin group FMR LLC17,825$111K<0.01%+3,46713F-HRTimelineGroup
Amundiin group Amundi17,212$107K<0.01%new13F-HRTimelineGroup
Jain Global LLC17,105$106K<0.01%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC16,464$102K<0.01%-1,76613F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS15,340$95.4K<0.01%+3,02613F-HRTimeline
ProShare Advisors LLC15,251$94.9K<0.01%-1,23013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC15,102$93.9K<0.01%-11,17413F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD14,383$89.5K<0.01%new13F-HRTimeline
Blueshift Asset Management, LLC14,178$88.2K0.02%new13F-HRTimeline
CALTON & ASSOCIATES, INC.14,000$87.1K0.01%+3,50013F-HRTimeline
SIMPLEX TRADING, LLC13,664$85K<0.01%-47,98413F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC13,588$84.5K<0.01%-10,20913F-HRTimelineGroup
Wealthfront Advisers LLC13,188$82K<0.01%+3,03913F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC13,059$81.2K<0.01%+25313F-HRTimeline
AXQ CAPITAL, LP12,922$80.4K0.01%new13F-HRTimeline
Silverberg Bernstein Capital Management…12,440$77.4K0.03%new13F-HRTimeline
Chicago Capital, LLC12,000$74.6K<0.01%013F-HRTimeline
KKM Financial LLC12,000$74.6K0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…11,784$73.3K<0.01%-4,79413F-HRTimelineGroup
AXXCESS WEALTH MANAGEMENT, LLC11,715$72.9K<0.01%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management11,636$72.4K<0.01%-64,88513F-HRTimelineGroup
XPONANCE LLC11,189$69.6K<0.01%new13F-HRTimeline
SG Americas Securities, LLC10,943$68K<0.01%-87,04213F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…10,570$65.7K<0.01%+1,26713F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC10,018$62.3K<0.01%+2,33213F-HRTimeline
Steward Partners Investment Advisory, L…9,895$61.5K<0.01%+73013F-HRTimeline
Quantbot Technologies LP9,707$60.4K<0.01%-8,10313F-HRTimeline
Allworth Financial LP8,221$51.1K<0.01%-4,22413F-HRTimeline
TrinityBridge Ltd7,500$47K<0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…7,550$47K<0.01%+1,37013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…6,245$38.8K<0.01%+1,22513F-HRTimelineGroup
Smartleaf Asset Management LLC6,000$37.3K<0.01%013F-HRTimeline
Caitong International Asset Management …5,990$37.3K0.01%-19,30713F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP5,801$35.8K<0.01%+2,94913F-HRTimelineGroup
Evelyn Partners Group Ltdin group Evelyn Partners Group Ltd5,000$31.1K<0.01%13F-HRTimelineGroup
Bank of New Hampshire3,000$18.7K<0.01%013F-HRTimeline
Parallel Advisors, LLC1,871$11.6K<0.01%-213F-HRTimeline
ROTHSCHILD INVESTMENT LLC1,695$10.5K<0.01%013F-HRTimeline
Copia Wealth Management1,658$10.3K0.01%+92813F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,481$9.21K<0.01%+94113F-HRTimelineGroup
SIGNATUREFD, LLC1,290$8.02K<0.01%+29013F-HRTimeline
Global Retirement Partners, LLC1,000$6.22K<0.01%13F-HRTimeline
ADIRONDACK TRUST CO986$6.13K<0.01%013F-HRTimeline
Larson Financial Group LLC977$6.08K<0.01%-26513F-HRTimeline
Sterling Capital Management LLC718$4.47K<0.01%-2013F-HRTimeline
Wilmington Savings Fund Society, FSB629$3.91K<0.01%013F-HRTimeline
Quarry LP591$3.68K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.406$2.52K<0.01%-30413F-HRTimelineGroup
Arax Advisory Partners373$2.32K<0.01%new13F-HRTimeline
GAMMA Investing LLC248$1.54K<0.01%-29813F-HRTimeline
Pinnacle Wealth Planning Services, Inc.242$1.5K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…234$1.46K<0.01%+22313F-HRTimelineGroup
Rialto Wealth Management, LLC91$567<0.01%new13F-HRTimeline
Bare Financial Services, Inc91$566<0.01%new13F-HRTimeline
State of Wyoming86$535<0.01%-6,46613F-HRTimeline
SJS Investment Consulting Inc.76$473<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB72$448<0.01%+6213F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\55$342<0.01%-513F-HRTimelineGroup
ISLAY CAPITAL MANAGEMENT, LLC39$243<0.01%013F-HRTimeline
Clearstead Advisors, LLC2$13<0.01%new13F-HRTimeline
Hughes Financial Services, LLC2$12<0.01%new13F-HRTimeline