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Q2 2026 Disclosed 13F Ranks: Alphabet Appeared in 10 Top-Ten Lists

Across AHNIM STUDIO’s fixed 17-manager panel, Alphabet appeared in 10 Q2 2026 top-ten disclosed-value lists, Amazon in 9 and TSMC in 8—but broad ownership often did not translate into a high rank.

AHNIM STUDIO

Black-and-white editorial illustration of institutional filings and a top-ten ranking under a magnifying glass.

Reviewed November 12, 2026. Which issuers appeared most often among the ten largest eligible disclosed positions across AHNIM STUDIO’s fixed 17-manager panel? Alphabet led Q2 2026 with 10 top-ten appearances among 12 reporting groups that held it, followed by Amazon at 9 of 11 and TSMC at 8 of 12. The broader result is the useful one: ownership breadth did not guarantee a high disclosed-value rank. Five of the 20 issuers held by at least five managers never reached any manager’s top ten.

This analysis ranks only eligible operating-company equity positions inside the official Form 13F information table or tables assigned to each reporting group. It does not infer conviction, cost basis, trade date, motive, performance, short exposure or the manager’s complete assets.

Three findings from the fixed panel

  • Alphabet led the rank count. It was top-ten for 10 of its 12 Q2 holders, versus 9 appearances in Q1.
  • The top three occupied 27 of 164 available Q2 slots. Alphabet, Amazon and TSMC together represented 16.5% of the panel’s top-ten positions; that pooled count is not unique AUM.
  • Breadth and rank separated sharply. Among 20 issuers held by at least five managers, the median issuer reached the top ten for 40% of its holders. DoorDash, Intel, Netflix, Reddit and ASML were held by five managers apiece but were top-ten for none.

Q2 leaders by top-ten appearances

We first combined multiple eligible rows and share classes to the preserved issuer key for each manager and quarter. We then ranked issuer-level positions by reported quarter-end value. “Holders” is the number of reporting groups with an eligible position; “top ten” counts the groups in which that issuer ranked among the ten largest eligible positions.

IssuerQ2 holdersQ1 top-tenQ2 top-tenChange
Alphabet12910+1
Amazon11109-1
TSMC1288+0
NVIDIA965-1
Microsoft855+0
Meta1074-3
AMD834+1
Uber634+1
Broadcom843-1
Micron623+1
Lam Research633+0
Applied Materials413+2

Source: AHNIM STUDIO calculations from 35 SEC information tables covering March 31 and June 30, 2026. Values are as filed, after the eligibility and issuer-aggregation rules described below.

Broad ownership did not guarantee a top-ten rank

Scatter chart comparing Q2 2026 reporting-group holder counts with the number of top-ten disclosed-value ranks for issuers held by at least five managers.
Q2 2026 holder breadth versus top-ten disclosed-value appearances. Points with identical integer coordinates are slightly offset for legibility; labels retain the integer counts.

Alphabet and TSMC were each held by 12 reporting groups, but Alphabet ranked top-ten in 10 while TSMC did so in 8. The difference becomes larger lower down the chart. SpaceX was reported by eight groups but reached the top ten for two; Cerebras was reported by seven but reached it for one. At the other extreme, the five broadly held zero-top-ten issuers sat below the top-ten cutoff in every reporting group that disclosed them.

This distinction extends our earlier count of which stocks gained the broadest institutional following. Breadth answers how many reporting groups disclosed an issuer. The present rank statistic asks how often that disclosed position was large relative to the same manager’s other eligible positions. Neither measure reveals why a position was established or whether it remained in place after June 30.

The Q1-to-Q2 changes were concentrated

IssuerQ1 top-tenQ2 top-tenChange
Applied Materials13+2
Astera Labs02+2
Mastercard02+2
SpaceX02+2
Alphabet910+1
TSMC88+0
Amazon109-1
Meta74-3

Applied Materials, Astera Labs, Mastercard and SpaceX each gained two top-ten appearances. Meta fell from seven to four, the largest decline in the comparison. Those are changes in quarter-end ranks, not direct counts of purchases or sales. Reported value can change because share counts changed, quarter-end market prices changed, or both. A rank move is not a trade-direction measure; an issuer can also cross the cutoff because another holding moved or the reporting group’s eligible set changed.

The result also complements our separate HHI and effective-diversification study. That article measured concentration inside each reporting group. Here, each issuer receives one top-ten appearance per manager at most, making the unit of analysis a manager–issuer rank rather than a portfolio-wide concentration score.

Method, denominator and limits

  • Panel and periods: the same fixed 17 institutional reporting groups, comparing holdings dated March 31 and June 30, 2026. Political disclosures are not included.
  • Source coverage: 35 official SEC information tables and 4,269 preserved source rows; 4,079 rows met the operating-company-equity and period filters used here.
  • Eligible instruments: operating-company equity. Options, ETFs/ETPs, debt, warrants, preferred shares and dated units remain outside this denominator.
  • Issuer aggregation: multiple eligible classes and rows were combined to a preserved issuer key before ranks were assigned.
  • Pershing filing bridge: Q1 combines the 11-entry Pershing Square Capital Management holdings report with Pershing Square Inc.’s separate one-entry combination report. Q2 uses Pershing Square Inc.’s 15-entry holdings report, which lists Pershing Square Capital Management and five other included managers. Rows were assigned once to the reporting group before eligible issuer aggregation.
  • Rank rule: each manager’s eligible issuer positions were sorted by reported quarter-end value. No Q2 manager had an exact value tie at the tenth-position boundary. Dalal Street disclosed only four eligible issuers, so all four occupied available top-ten slots; the panel therefore had 164 rather than 170 Q2 slots.
  • Interpretation: 13F reported value is a quarter-end disclosure measure, not purchase cost, unique AUM or return. Nonappearance does not prove a complete exit outside the reportable universe.

For context on a different cross-manager relationship, see our pairwise portfolio-overlap analysis. The full set of individual and statistical work remains available on the AHNIM STUDIO Guru research hub.

Sources and original documents

SEC, Frequently Asked Questions About Form 13F (updated March 6, 2026) — scope, reportable information and filing timing.

SEC, Form 13F and official instructions — quarter-end fair-value and information-table requirements.

This article is for information and education only. It is not investment advice, a recommendation or a claim about any manager’s current position.

For sources, valuation assumptions, and material revisions, see the notes within this analysis.

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