get_institution

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One 13F filer (an institution or a curated superinvestor) by SEC CIK: names (and the superinvestor's manager and style), the quarters it filed (newest 12, with quarters_total: number of positions, portfolio value in USD, filing time, amendments), and its holdings for one quarter (default: the latest it filed) with shares, market value in USD at quarter end, pct_of_portfolio (percent) and the change versus the previous calendar quarter (new/added/reduced/unchanged, share_change_pct in percent). When a stock split between the two quarters, previous_shares is converted to this quarter's shares before comparing (split_factor = new shares per old share) and a change within 0.5% counts as unchanged; a split that changed the CUSIP is shown as one row under the new CUSIP. Also returns the 10 largest positions sold out that quarter and the 10 largest option positions (put/call market value), each with its total count. Portfolio value counts long positions and excludes options. If the institution did not file the previous quarter, changes and sold-out positions are not reported. Securities without a ticker (bonds, some ETFs and foreign shares) have url null. At most 200 holdings per call; use page.