Who Owns Amazon (AMZN)? Institutional Ownership Map

Who owns the most Amazon?

The largest disclosed Amazon holders are the index giants. This is the single most important fact about AMZN ownership and the one most "who owns Amazon" answers get wrong by leading with a hedge fund: the biggest holders are the funds that have to own Amazon because it is a top weight in the S&P 500 and Nasdaq 100.

Values are each filer's reported long position as of its most recent 13F; live figures and the full holder list are on the Amazon ownership page. The "as of" column matters: 13F filings arrive asynchronously, so one quarter's largest filer may be a quarter ahead of another's.

The passive core vs the active money

Read AMZN's holder list as two layers.

The passive core is the top of the table: Vanguard, BlackRock, State Street, Geode, and the index sleeves inside Fidelity. These managers hold Amazon in proportion to its index weight. Their quarter-over-quarter moves track fund flows and index rebalancing far more than any view on the stock. When BlackRock "adds" 0.2%, that is mostly new money flowing into total-market and S&P 500 funds, not a BlackRock analyst turning bullish. Fidelity's roughly 8% increase is larger than the typical index drift, a reminder that the same firm runs active sleeves alongside its index products.

The active money is everyone making a position-sizing decision. That is where the signal lives, and it is mostly further down the list. Last quarter the notable active moves on the long side included Soroban Capital Partners, which added roughly 41% to its AMZN stake, and Pershing Square Capital Management, Bill Ackman's fund, which added about 19%. Smaller managers stacked on top of that: Holocene Advisors added around 30% and Bank of Nova Scotia about 48%. On the other side, Citadel cut its disclosed long position by about 43% and Coatue Management trimmed about 20%, with Sands Capital down close to 10%. None of those is a verdict on the stock by itself, but a screen of who is adding versus trimming, weighted by manager quality, is the actual use of this data. The smart-money leaderboard is the practical starting view.

One nuance worth flagging: hedge funds frequently express AMZN views through options, and 13F reports put and call positions as flagged rows valued against the underlying. A naive aggregator that sums every AMZN row into a "long book" turns a protective put into a bullish bet. Our data separates option legs from the long-equity book, so a manager's reported AMZN long is the share position, not a blended notional. (More on that trap: 13F options, puts and calls explained.)

A data-quality footnote: the Vanguard reorg

If you pull AMZN ownership from raw EDGAR right now, you will see three Vanguard entities reporting Amazon: Vanguard Group plus two newer entities (Vanguard Portfolio Management LLC and Vanguard Fiduciary Trust Co) that began filing separately after an internal reorganization. Sum all three and you double-count tens of billions of dollars of the same shares. This is the kind of identifier and entity-resolution problem that makes institutional ownership data hard to keep clean, and it is exactly what a sourced, deduplicated layer is for. We model the reorg so the combined view does not inflate Vanguard's true position. (Background: 13F amendments and restatements.)

What 13F does and does not tell you about AMZN

Four limits to keep in mind before treating any "who owns Amazon" number as complete:

• It lags up to 45 days. A 13F reports positions as of quarter-end and is due 45 days later, so the picture can be a full quarter stale by the time you read it. AMZN can move 20% in that window.
• It is long-only. 13F covers long positions in 13(f) securities. Short positions, cash, and most derivatives net exposure do not appear. A fund that looks "long AMZN" on a 13F may be hedged.
• It misses smaller and foreign holders. Only managers with $100M+ in 13(f) securities must file a Form 13F, so retail, smaller funds, and many non-US holders are invisible here.
• Insiders file separately. Amazon's own officers and directors report their trades on Form 4 within two business days, a different and faster feed than 13F. See insider activity for AMZN and the filing-type comparison.

The honest summary: 13F tells you which large institutions disclosed an Amazon long position at the last quarter-end and how it changed, not who owns Amazon in real time.

How to track Amazon ownership as it updates

The durable workflow is to resolve the entity once, pull the holder list, and diff across quarters rather than reading a single filing. With the REST API:

curl -H "Authorization: Bearer YOUR_KEY" \
  "https://arkolith.com/api/v1/stocks/AMZN"

For an AI agent, the same data is exposed through MCP tools so the assistant can answer "which funds added Amazon last quarter" directly, with each figure carrying its source filing and quarter. Start with the MCP quickstart, the 13F data layer, or the live Amazon ownership page. Every figure on those surfaces is sourced to its SEC EDGAR accession, which is the point: an ownership claim without a filing date and quarter-end is incomplete.

Frequently asked questions

Who is Amazon's largest shareholder?

Among institutional 13F filers, Vanguard Group reports the largest Amazon position, around $195 billion at its latest filing, followed by BlackRock at around $153 billion. Both are index-fund managers holding Amazon in line with its weight in major indexes, not active stock-pickers.

How many institutions own Amazon?

819 institutional managers disclose an Amazon long position in their most recent 13F filings in our dataset. That count covers managers with at least $100M in 13(f) securities; it excludes retail holders, smaller funds, and many foreign holders that do not file 13F.

Which hedge funds own Amazon?

Many do, but most hold far smaller stakes than the index giants. Recent active moves include Soroban Capital and Pershing Square (Bill Ackman's fund) adding to their long positions, while Citadel and Coatue Management trimmed theirs. Screen the full list, weighted by manager quality, on the investors leaderboard rather than reading one fund in isolation.

Is Amazon mostly owned by index funds?

At the top of the cap table, yes. The five largest disclosed holders are all index or quasi-index managers (Vanguard, BlackRock, State Street, Fidelity, Geode), whose stakes track index weight and fund flows. The active, conviction-driven positions sit lower in the list and are where quarter-over-quarter changes carry the most signal.

Is 13F ownership data live?

No. A 13F is a quarterly snapshot filed up to 45 days after quarter-end, so Amazon's disclosed ownership can be months old by the time it publishes. Use it for institutional positioning and quarter-over-quarter changes, never as a live book.

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Arkolith turns SEC ownership filings into clean, sourced, queryable data. See the live Amazon ownership page, connect an agent through the MCP quickstart, or get a key. Not investment advice.