get_holders

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Returns what investors hold in the tracked AI and semiconductor companies, from SEC filings. With `holder` — a key, a name such as 'Vanguard' or 'BlackRock', or the `holder` value returned by get_ownership, get_insider_trading or get_fund_flows — one holder in detail. For a fund or a company: positions by company (shares, value, weight, share of the company, move since the previous quarter, `heldSince`), sectors, flows, Schedule 13D/G declarations, `history` (what it declared every quarter since the end of 2019), `performance` (the return of the AI-stock portfolio it declared at the start of each quarter, held unchanged, with its rank among active managers) and `follow` (its page and an Atom feed of its filings). For a person: each stake broken down (`breakdown`: shares held and how, restricted shares, options and other rights, as the filings state them) with their roles and Forms 3, 4 and 5. Without `holder`, a list (`list`): the largest institutional holders (default), tracked companies that invest in others, the largest buyers or sellers, Schedule 13D/G holders without a 13F, individuals, or active managers ranked by the return of their declared AI-stock portfolio over `period` against SMH; with the sector rotation. Use it when the user asks what a fund, an investor or a person owns, or which managers bought, sold or performed most. A person can have two figures for one company — the shares held (Form 4) and beneficial ownership (Schedule 13D/G, which adds options exercisable within 60 days and unvested shares that vote): say which one is quoted. `performance` measures declared picks, not a fund's return. `coverage.complete` false means the figures are a floor.