Citibank is owned by Citigroup Inc. Citigroup's 2025 Form 10-K, filed February 20, 2026, describes Citibank, N.A. as its primary subsidiary and a wholly owned subsidiary of Citigroup, and Citigroup itself is a public company whose largest disclosed holders are The Vanguard Group and BlackRock, Inc.
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So the ownership question has two layers. The bank belongs to the holding company, and the holding company belongs to its shareholders. This article covers both, using only SEC filings.
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Citibank, N.A. is wholly owned by Citigroup Inc., its parent bank holding company. Citibank does not have its own public shareholders. Anyone who wants an ownership stake in Citibank has to buy Citigroup common stock, which trades on the New York Stock Exchange under the ticker C.
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The structure is spelled out in Citigroup's annual report on Form 10-K. The filing calls Citibank, N.A. "Citigroup's primary subsidiary" when describing regulatory capital requirements, and in its discussion of an OCC civil money penalty it identifies Citibank as "a wholly owned subsidiary of Citigroup."
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The same 10-K states that both Citigroup and Citibank were "well capitalized" as of December 31, 2025. Those are two separately regulated entities. The 10-K describes Federal Reserve capital assessments of Citigroup and Office of the Comptroller of the Currency consent orders with Citibank.
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Governance links the two. Citigroup's 2026 proxy statement lists director Ellen M. Costello as Chair of Citibank, N.A., and Jane Fraser as Chair and Chief Executive Officer of Citigroup Inc.
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Citigroup's largest shareholders are The Vanguard Group and BlackRock, in that order, according to Citigroup's 2026 proxy statement. They are the only two holders the company lists above its disclosure threshold. Both are asset managers holding shares mostly on behalf of fund clients.
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Together Vanguard and BlackRock hold roughly 15.6% of Citigroup, adding the two percentages in the proxy table. The remaining shares are spread across other institutions, pension plans, retail investors and insiders, none of whom crossed the 5% line in the proxy table.
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No. Vanguard and BlackRock are minority holders of Citigroup, not controlling owners of Citibank. Both report through Schedule 13G, the passive filing used by investors that do not seek to influence control. Citibank's direct owner is Citigroup, and Citigroup is governed by a board elected by all of its shareholders.
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The voting detail in the Citigroup 2026 proxy shows how passive these positions are. Vanguard's February 2024 filing reported sole voting power over 0 shares and shared voting power over 2,459,505 shares, against sole dispositive power over 157,970,724 shares. BlackRock reported sole voting power over 116,207,118 shares.
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Economic exposure and voting power are not the same thing. Index fund investors carry most of the economic interest, while the manager reports because it can vote or sell on their behalf.
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Vanguard changed how it reports ownership. Citigroup's 2026 proxy notes that Vanguard reported on March 26 that, due to an internal realignment, it no longer has beneficial ownership over securities held by various subsidiaries and business divisions, which will now report separately. Future filings may show smaller Vanguard lines without any shares sold.
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The proxy footnote explains that subsidiaries or business divisions that formerly reported with The Vanguard Group will report beneficial ownership on a "disaggregated basis." That is a reporting change, not a trading decision.
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For readers, the practical effect is that the 8.7% figure reflects Vanguard's February 2024 aggregate filing. Adding up Vanguard's disaggregated filings is the only way to rebuild a comparable total, and that sum may not match the old headline exactly.
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Citigroup ownership can be checked directly on SEC EDGAR. The annual DEF 14A proxy lists all major holders with footnotes naming the source filing. Schedule 13G amendments show changes in large stakes, Form 13F shows institutional managers' quarterly holdings, and Form 4 shows insider trades.
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Citigroup's filings are listed on EDGAR under CIK 831001. A quick path through the documents:

Citibank, N.A. does not issue common stock to the public, so there is no separate shareholder list for the bank itself.
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One practical tip: always compare a holder's share count with the share count from the same period. Citigroup buys back stock over time, so a percentage computed with an older, larger share count will understate a stake, and a percentage computed with a newer, smaller count can overstate a stake that was reported years earlier.
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The proxy table is a dated snapshot built from filings of different ages. Citigroup's 2026 proxy cites an older filing for Vanguard than for BlackRock, so the two percentages describe different moments. They also say nothing about fund-level holders or short-term trading between filings.
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Three limits to keep in mind:

No. Citibank, N.A. is a national bank and Citigroup Inc. is its parent holding company. The 2025 Form 10-K calls Citibank a wholly owned subsidiary of Citigroup.
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The Vanguard Group, with 166,504,200 shares or 8.7%, per the April 2, 2026 proxy, which cites Vanguard's February 13, 2024 Schedule 13G/A.
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No. Citibank is owned by Citigroup, and no government entity appears among the 5% holders in Citigroup's 2026 proxy statement.
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Berkshire does not appear in Citigroup's 2026 proxy 5% table, and Citigroup is not listed in Berkshire's Form 13F for the quarter ended June 30, 2026.
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Jane Fraser is Chair and CEO of Citigroup Inc., and Ellen M. Costello is Chair of Citibank, N.A., according to Citigroup's 2026 proxy statement.
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All figures were taken from the SEC EDGAR filings listed below. No third-party ownership aggregators were used.