Investigate / reported ownership
MA
Mastercard Inc - A
21 tracked reported owners · snapshot updated 2026-10-04. Delayed disclosures, not live holdings or an investment recommendation.
Who reports owning MA?
Select a manager to inspect their portfolio. Reports may cover different quarters; portfolio weights describe disclosed long 13F holdings, not total economic exposure.
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Chuck Akre | 20.0% | 40q | $1.02B | 1,989,906 |
| 2 | Thomas Russo | 8.8% | 40q | $782M | 1,522,395 |
| 3 | Joel Greenblatt | 0.4% | 40q | $754M | 1,467,770 |
| 4 | Polen Capital Management | 5.1% | 40q | $587M | 1,141,958 |
| 5 | Valley Forge Capital Management | 17.6% | 39q | $547M | 1,065,934 |
Go beyond ownership.
A reviewed company brief is not available yet. You can inspect reported owners above and their filings below, then save this company for further research.
We have not generated a business case or inferred manager motives from these holdings.
Filing dates and original SEC sources
- Chuck Akre · 2026Q2 · filed 2026-08-14 ↗
- Thomas Russo · 2026Q2 · filed 2026-08-13 ↗
- Joel Greenblatt · 2026Q2 · filed 2026-09-02 ↗
- Polen Capital Management · 2026Q2 · filed 2026-08-04 ↗
- Valley Forge Capital Management · 2026Q2 · filed 2026-08-14 ↗
- AltaRock Partners · 2026Q2 · filed 2026-08-17 ↗
- Vulcan Value Partners · 2026Q2 · filed 2026-08-10 ↗
- Terry Smith · 2026Q2 · filed 2026-08-14 ↗
- John Armitage · 2026Q2 · filed 2026-07-21 ↗
- Jensen Investment Management · 2026Q2 · filed 2026-08-07 ↗
- Thomas Gayner · 2026Q2 · filed 2026-07-31 ↗
- AKO Capital · 2026Q2 · filed 2026-08-12 ↗
- Triple Frond Partners · 2026Q2 · filed 2026-08-13 ↗
- Wallace Weitz · 2026Q2 · filed 2026-08-12 ↗
- Bill Nygren · 2026Q2 · filed 2026-08-14 ↗
- Guy Spier · 2026Q2 · filed 2026-07-10 ↗
- Francois Rochon · 2026Q2 · filed 2026-08-26 ↗
- Yacktman Asset Management · 2026Q2 · filed 2026-08-11 ↗
- Glenn Greenberg · 2026Q2 · filed 2026-08-14 ↗
- Christopher Bloomstran · 2026Q2 · filed 2026-08-14 ↗
- Mairs & Power Funds · 2026Q2 · filed 2026-08-14 ↗
Your research workspace / MA
Ask better questions. Keep the evidence.
Explore the available sources for MASTERCARD INC - A, then keep what deserves another look.
01 Investor activity
Reported evidence
Who reports owning it?
21 tracked reported owners in the snapshot generated 2026-10-04. Reports can cover different quarters. These are delayed disclosures, not live positions, total economic exposure, endorsements or reasons for investing.
02 Business evidence
No reviewed company brief is available. Business results, case and risks have not been established here.
03 Questions to investigate
Open saved takeaways →A material reported change · Q2 2026
Joel Greenblatt increased reported MA shares by 30.4%.
Holdings as of Jun 30, 2026 · filed Sep 2, 2026. Position at period end: 0.4% of the reported portfolio. The filing does not reveal the trade date, price, or reason.
Reported position changes
Net disclosed share changes—not individual trades or execution dates. NEW has no prior-position percentage comparison; EXIT weight refers to the previous report.
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| AltaRock Partners | ADD | 9.3% | +46% | $393M | Aug 17, 2026 |
| Glenn Greenberg | ADD | <0.1% | +178% | $602K | Aug 14, 2026 |
| Stephen Mandel | EXIT | 0.2% | -100% | $0 | Aug 14, 2026 |
| Terry Smith | NEW | 4.5% | New position | $202M | Aug 14, 2026 |
| Valley Forge Capital Management | TRIM | 17.6% | -28% | $547M | Aug 14, 2026 |
| AKO Capital | ADD | 2.3% | +22% | $98M | Aug 12, 2026 |
| Vulcan Value Partners | ADD | 7.9% | +31% | $258M | Aug 10, 2026 |
| John Armitage | TRIM | 1.8% | -21% | $187M | Jul 21, 2026 |
- ADDAltaRock Partners9.3%Δ +46%·$393M·filed Aug 17, 2026
- ADDGlenn Greenberg<0.1%Δ +178%·$602K·filed Aug 14, 2026
- EXITStephen Mandel0.2%Δ -100%·$0·filed Aug 14, 2026
- NEWTerry Smith4.5%Δ New position·$202M·filed Aug 14, 2026
- TRIMValley Forge Capital Management17.6%Δ -28%·$547M·filed Aug 14, 2026
- ADDAKO Capital2.3%Δ +22%·$98M·filed Aug 12, 2026
- ADDVulcan Value Partners7.9%Δ +31%·$258M·filed Aug 10, 2026
- TRIMJohn Armitage1.8%Δ -21%·$187M·filed Jul 21, 2026
Explore earlier changes and contrasting evidence
Selected historical records. Retrospective outcomes do not establish predictive skill.
Compare the reported increases and reductions →Q2 2026
filed Sep 2, 2026
64d lag
-5.5% vs SPY
21 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 17, 2026
48d lag
-4.4% vs SPY
33 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 14, 2026
45d lag
-1.6% vs SPY
34 sessions after disclosure
direction supported so far
Q2 2026
filed Aug 14, 2026
45d lag
-1.6% vs SPY
34 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 12, 2026
43d lag
-1.8% vs SPY
36 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 10, 2026
41d lag
-1.8% vs SPY
38 sessions after disclosure
direction not supported so far
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Long US 13F disclosures omit shorts and can be amended. CUSIP 57636Q104. No current price, valuation or manager motive is inferred.