ACKMAN WILLIAM A

High conviction

Director, CEO & Chairman, 10% Owner · PERSHING SQUARE INC.

Every open-market stock purchase ACKMAN WILLIAM A has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. Insiders sell for many reasons, but they buy with their own money for one — this page tracks where those buys landed inside insider clusters and how the prices paid compare to where the stock trades now.

Total bought
$259.9M
Open-market buys
8
Companies
2
Last buy
Apr 30, 2026

Where the buys stand today

  • PSUS
    Pershing Square USA, Ltd.
    −22.6% vs price paid

    5 purchases totalling $240.9M at an average of $49.18 per share; the stock last traded at $38.06. See all insider buying in PSUS

    Avg price paid
    $49.18
    Latest price
    $38.06
    Market cap
    $3.8B
  • PS
    PERSHING SQUARE INC.

    3 purchases totalling $19.0M at an average of $23.77 per share. See all insider buying in PS

    Avg price paid
    $23.77
    Latest price
    Market cap
    Unknown

Cluster participation

Buys that landed within days of other insiders buying the same stock — the pattern this site exists to catch.

All reported buys

DateTickerSharesPriceValueFiling
Apr 30, 202681,762$22.61$1.8MSEC ↗
Apr 30, 2026659,540$23.88$15.7MSEC ↗
Apr 30, 202658,698$24.20$1.4MSEC ↗
Apr 30, 2026
PSUScluster
21,200$50.00$1.1MSEC ↗
Apr 30, 2026
PSUScluster
3,500,000$50.00$175.0MSEC ↗
Apr 30, 2026
PSUScluster
34,971$50.00$1.7MSEC ↗
Apr 30, 2026
PSUScluster
500,000$42.00$21.0MSEC ↗
Apr 30, 2026
PSUScluster
841,000$50.00$42.1MSEC ↗

Get alerted the next time ACKMAN WILLIAM A — or any insider — buys

We watch every Form 4 as it hits SEC EDGAR and alert you when insiders cluster into the same stock.

About this data

Figures are parsed from ACKMAN WILLIAM A's Form 4 filings on SEC EDGAR (CIK 1056513) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.

This page is informational and reflects public filing data. It is not investment advice.