Mastercard Incorporated

The full register, from 13F filings

The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 31-mar-2026, where 3,564 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.

Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.

What a reader needs to know to read these numbers

• Mastercard has two classes of common stock. Class A common stock (ticker MA, NYSE) is the only publicly traded and only voting class: one vote per share on all matters. Class B common stock is non-voting, not publicly traded or listed on any exchange, and is held only by certain customers (member financial institutions); it was distributed in connection with Mastercard's 2006 IPO. Holders of Class B stock have no voting power except as Delaware law may require. Source: 2026 DEF 14A ('About the Annual Meeting and voting' section) and 10-Q for the quarter ended 30 Jun 2026.
• company.shares_outstanding (876,009,940) is the sum of the two raw share-class counts on the 10-Q cover page as of 27 Jul 2026: Class A 869,464,115, Class B 6,545,825. All register pct_of_company figures instead use the balance-sheet-date Class A share count from 10-Q Note 10 (870,700,000 as of 30 Jun 2026, or 887,300,000 as of 31 Dec 2025 for the Vanguard 13F row) or the proxy's own Class A denominator (877,780,670 as of 21 Apr 2026), since every register holder here holds Class A only and using the cover-page date would mismatch the as_of date of each holding.
• Mastercard does not file Form 13F itself. Its complete EDGAR filing history (submissions JSON, checked 17 Aug 2026) contains no 13F-HR of any vintage under CIK 0001141391.
• Mastercard's holdings list is empty and that is the sourced finding, not a gap. The Q2 FY2026 10-Q (period ended 30 Jun 2026, filed 30 Jul 2026) discloses Equity Investments only in aggregate: Marketable securities (equity investments with readily determinable fair values) and Nonmarketable securities, which as of 30 Jun 2026 comprised Measurement alternative investments of $1,242 million and Equity method investments of $282 million, totaling $1,524 million in Nonmarketable securities. No individual investee company is named or sized anywhere in the 10-Q or (per the exemplar file for this project, applying the same method) the FY2025 10-K. Per the brief, a combined balance covering many investees does not size any one of them, so no named holding is recorded.
• The Mastercard Foundation is the notable strategic holder the brief flags. It is a Canadian charitable foundation created in connection with Mastercard's 2006 IPO. Its shares of Class A common stock (held via its wholly owned investment-manager subsidiary, Mastercard Foundation Asset Management Corporation, MFAM, since 1 Feb 2024) represented greater than 5% of Mastercard's general voting power per the FY2025 10-K risk factors. Governance provisions tied to the Foundation, per the same 10-K: Mastercard stockholders cannot cumulate votes or act by written consent, and any representative of a Mastercard or Mastercard Foundation competitor is disqualified from serving on Mastercard's board. Foundation directors must be independent of Mastercard and its customers.
• Mastercard Foundation's shares were historically subject to a transfer restriction (originally through 1 May 2027). In July 2023 the Foundation obtained court approval to advance that date to 1 Jan 2024, and in March 2024 it began selling shares under an orderly, structured plan to diversify its holdings over a seven-year period while committing to remain a long-term Mastercard stockholder. This means the Foundation's stake has been shrinking by design since March 2024; the 65,234,702-share, 7.4 percent figure used here (13G/A dated 16 Apr 2026, reproduced in the 27 Apr 2026 DEF 14A) is the most current sourced figure, not a peak historical one.
• Vanguard and BlackRock disagreements, recorded rather than resolved. The register uses each manager's own Form 13F-HR: Vanguard 79,897,854 shares as of 31 Dec 2025 (most recent 13F-HR on file for CIK 0000102909; no 13F-HR was found for the quarters ended 31 Mar or 30 Jun 2026, consistent with Vanguard filing 13F-NT/notice for some quarters and other affiliated Vanguard entities reporting instead), and BlackRock 66,393,565 shares as of 30 Jun 2026. Mastercard's 2026 DEF 14A instead cites stale Schedule 13G/A filings for both: Vanguard 71,670,525 sole dispositive plus shared amounts (13G/A dated 13 Feb 2024) and BlackRock 67,825,777 shares, 7.7 percent (13G/A dated 12 Feb 2024). The 13F figures used in the register are more current for BlackRock and give a specific number for Vanguard that the proxy's rounded percentage does not.
• No individual, family or founder controls a large block of Mastercard Class A stock. Insider ownership (all current directors and executive officers as a group) is 0.086 percent of Class A shares outstanding; no non-Foundation strategic or sovereign holder above 1 percent was identified within the time budget.
• market_cap_usd and market_cap_as_of are left null. No page giving a current, dated Mastercard market capitalization was fetched in this task; rather than compute an unsourced figure from shares outstanding times an unsourced share price, the field is left null per the never-invent-a-number rule.