SIEBERT FINANCIAL CORP (SIEB) Institutional Ownership Changes & 13F Activity

SIEBERT FINANCIAL CORP (SIEB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Cantor Fitzgerald, L. P., Geode Capital Management, Llc, Ubs Group Ag, Millennium Management Llc, and Northern Trust Corp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+21,561+78.8%48,906$80.69KQ2 2026Sep 02, 2026
Cantor Fitzgerald, L. P.Buy+515,911515,911$851.25KQ2 2026Aug 19, 2026
Millennium Management LlcBuy+121,232121,232$200.03KQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+55,77155,771$92.02KQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+25,27325,273$41.70KQ2 2026Aug 14, 2026
Bridgeway Capital Management, LlcSell-21,953-38.3%35,307$58.26KQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+21,31521,315$35.17KQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+20,090+55.7%56,158$92.66KQ2 2026Aug 14, 2026
Susquehanna International Group, LlpBuy+19,643+68.5%48,308$79.71KQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+17,78017,780$29.34KQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+11,39811,398$18.81KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnSell-5,313-99.8%10$17.00Q2 2026Aug 14, 2026
Osaic Holdings, Inc.Sell-2,800-25.6%8,130$13.41KQ2 2026Aug 14, 2026
Barclays PlcSell-2,364-78.3%654$1.08KQ2 2026Aug 14, 2026
Royal Bank Of CanadaBuy+1,974+41.5%6,728$11.00KQ2 2026Aug 14, 2026
Ubs Group AgSell-138,297-86.1%22,296$36.79KQ2 2026Aug 13, 2026
Northern Trust CorpSell-96,313-69.5%42,312$69.81KQ2 2026Aug 13, 2026
Morgan StanleyBuy+13,852+168.3%22,084$36.44KQ2 2026Aug 13, 2026
Vanguard Fiduciary Trust CoSell-5,269-4.7%107,626$177.58KQ2 2026Aug 13, 2026
Fmr LlcSell-4,341-95.8%190$314.00Q2 2026Aug 13, 2026
Bnp Paribas Financial MarketsSell-3,037-96.8%101$167.00Q2 2026Aug 13, 2026
Vanguard Capital Management LlcSell-899-0.2%549,720$907.04KQ2 2026Aug 13, 2026
Renaissance Technologies LLCSell-800-3.7%21,000$34.65KQ2 2026Aug 13, 2026
Geode Capital Management, LlcSell-181,651-41.7%253,888$419.17KQ2 2026Aug 12, 2026
Rhumbline AdvisersSell-10,418-58.5%7,380$12.18KQ2 2026Aug 12, 2026
American Century Companies IncSell-1,543-11.8%11,545$19.05KQ2 2026Aug 12, 2026
Cetera Investment AdvisersBuy+531+0.4%146,990$242.53KQ2 2026Aug 12, 2026
Jpmorgan Chase & CoBuy+482482$815.00Q2 2026Aug 12, 2026
Dimensional Fund Advisors LpSell-8,542-24.5%26,299$43.55KQ2 2026Aug 11, 2026
Tower Research Capital Llc (Trc)Sell-6,779-86.5%1,060$1.75KQ2 2026Aug 11, 2026
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Frequently asked questions about SIEB activity

  • Which institutional owners are buying SIEB?

    Institutional owners buying SIEB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in SIEB activity?

    "Buy" means an investor increased their reported position in SIEB compared to the prior reporting period. This reflects growing exposure to SIEBERT FINANCIAL CORP (SIEB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in SIEB increasing?

    Institutional interest in SIEB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.