ASP ISOTOPES INC COM

ASP ISOTOPES INC COM is a security (CUSIP 00218A105) tracked across SEC portfolio filings. 182 institutional managers reported $343.3M on Form 13F as of 2026-06-30; 11 registered fund positions totaling $11.0M via N-PORT as of 2026-05-31.

Summary

Top institutional holders (Form 13F)

Showing 15 of 182 managers by value.

ManagerLocationValueShares
BlackRock, Inc.New York, NY$36.8M8,328,144
VANGUARD GROUP INCValley Forge, PA$34.3M6,406,244
Encompass Capital Advisors LLCNew York, NY$30.6M6,912,054
Rovida Investment Management LtdGrand Cayman, E9$25.5M4,100,000
SUSQUEHANNA INTERNATIONAL GROUP, LLPBALA CYNWYD, PA$23.6M1,057,340
EXCHANGE TRADED CONCEPTS, LLCOklahoma City, OK$14.0M2,255,509
UBS Group AGZurich, V8$13.2M2,841,709
GEODE CAPITAL MANAGEMENT, LLCBOSTON, MA$12.1M2,740,464
Alyeska Investment Group, L.P.CHICAGO, IL$11.9M2,692,166
CITADEL ADVISORS LLCMIAMI, FL$11.7M768,006
STATE STREET CORPBOSTON, MA$10.3M2,322,159
AWM Investment Company, Inc.NEW YORK, NY$9.4M2,124,496
PEAK6 LLCCHICAGO, IL$7.8M79,212
MORGAN STANLEYNEW YORK, NY$7.0M1,576,413
WOLVERINE TRADING, LLCCHICAGO, IL$6.3M16,497

Top fund holders (N-PORT)

FundRegistrantValue% of fund
VANGUARD EXTENDED MARKET INDEX FUNDVANGUARD INDEX FUNDS$5.5M0.68%
VANGUARD RUSSELL 2000 INDEX FUNDVANGUARD SCOTTSDALE FUNDS$4.5M2.59%
Master Small Cap Index SeriesQuantitative Master Series LLC$679K1.41%
Saba Capital Income & Opportunities FundSaba Capital Income & Opportunities Fund$416K10.54%
VANGUARD BALANCED INDEX FUNDVANGUARD VALLEY FORGE FUNDS$260K0.04%
VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUNDVANGUARD INSTITUTIONAL INDEX FUNDS$218K0.07%
Saba Capital Income & Opportunities Fund IISaba Capital Income & Opportunities Fund II$177K6.85%
DWS Small Cap Index VIPDEUTSCHE DWS INVESTMENTS VIT FUNDS$70K1.67%
TIAA Separate Account VA-1 - Stock Index AccountTIAA Separate Account VA-1$7K0.06%
Blackstone Alternative Multi-Strategy FundBlackstone Alternative Investment Funds$-114K-0.32%
VANGUARD MARKET NEUTRAL FUNDVANGUARD MONTGOMERY FUNDS$-742K-17.19%

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