filing.firehose

William Ackman: SEC Schedule 13D / 13G filings

William Ackman's recent Schedule 13D / 13G activity, with parsed CUSIP, percent of class, and stated purpose where disclosed.

Recent filings

FiledIssuerForm% of classCUSIP
No recent filings in our archive yet.

Track William Ackman via API

curl -H "X-API-Key: ff_live_..." \
"https://filingfirehose.com/v1/filings/13d?activist=William Ackman&limit=10"

The 13D / 13G endpoint extracts the cover-page CUSIP, aggregate amount beneficially owned, percent of class, and an Item 4 purpose excerpt. We tag known activist filers automatically — William Ackman is one of 20 we identify.

Other tracked activists

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