Public disclosures
Page built 2026-09-29
Data as of 2026-09-29
Search

ACKMAN WILLIAM A: insider trades

Every open market trade ACKMAN WILLIAM A has filed with the SEC, when each filing appeared, and how the buys did against the S&P 500 once the filing was public.

Key Facts

  • ACKMAN WILLIAM A is listed as CEO & Chairman at PS, PSUS.
  • Between 2026-05-01 (1 May 2026) and 2026-05-04 (4 May 2026) ACKMAN WILLIAM A filed 3 open market buys worth $260M and 0 open market sales worth $0.
  • Across 2 scored buys, ACKMAN WILLIAM A averaged -7.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is too few trades to tell.
  • Data as of 2026-09-29 (29 September 2026).
Open market buys 3 $260M
Open market sales 0 $0
Avg vs S&P, 90d -7.2% 2 scored buys
Beat the S&P 50% 90 days after entry

Would copying ACKMAN WILLIAM A have paid?

prices as of 2026-09-28

The result. Across 2 scored buys, ACKMAN WILLIAM A averaged -7.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is too few trades to tell.

Average return of ACKMAN WILLIAM A's open market buys against the S&P 500.
Days after entryScored buysAvg vs S&PBeat S&PEntry monthst statisticReading
30 days 2 -1.7% 50% 1 n/a too few trades to tell
90 days 2 -7.2% 50% 1 n/a too few trades to tell
180 days 0 n/a n/a n/a n/a too few trades to tell

A return curve needs at least 10 scored buys. ACKMAN WILLIAM A does not have enough yet.

Stocks traded

  1. PSUS2 trades, $241M
  2. PS1 trade, $19M

Every open market trade

as of 2026-09-29
3 trades.
Open market trades filed by ACKMAN WILLIAM A, newest first.
FiledStockTypeSharesPriceValue90 day vs S&P
4 May 2026 PS buy 800,000 $23.77 $19M +1.8%
1 May 2026 PSUS buy 4,000,000 $49.00 $196M -16.1%
1 May 2026 PSUS buy 897,171 $50.00 $45M -16.1%

Insider sales are shown but not scored, because they are often planned for tax or diversification reasons.

Frequently asked questions

What has ACKMAN WILLIAM A bought and sold?

Between 2026-05-01 (1 May 2026) and 2026-05-04 (4 May 2026) ACKMAN WILLIAM A filed 3 open market buys worth $260M and 0 open market sales worth $0.

Did ACKMAN WILLIAM A's buys beat the market?

Across 2 scored buys, ACKMAN WILLIAM A averaged -7.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is too few trades to tell. Insider sales are not scored because they are often planned for tax or diversification reasons.

Sources: Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.