Bill Ackman
Pershing Square Capital Management
Bill Ackman Amazon.com Inc stake
total: 43
Pershing Square Capital Management AMZN trades
- Total transactions:
- 3
- New positions:
- 1
- Added:
- 2
- Held since:
- 2025 Q2
- Held for:
- 4 quarters
- Latest activity:
- 2026 Q1
According to 2026 Q1 report, Bill Ackman holds 11,451,981 Amazon.com Inc (AMZN) shares with a market value of roughly $2.39B accounting for 17.39% of the overall portfolio. To date, the estimated cost basis is nearly $221.38 for "buy" trades. Pershing Square Capital Management first purchased AMZN in 2025 Q2, initially acquiring about 5.82M shares. Since the initial investment in Amazon.com Inc (AMZN), Pershing Square Capital Management has made 2 more transactions.
When did Bill Ackman buy Amazon.com Inc (AMZN)?
Bill Ackman first invested in Amazon.com Inc (AMZN) in 2025 Q2 at the reported quarter-end price of $219.39 per share.
What's the cost basis of Pershing Square Capital Management's AMZN stake?
The estimated cost basis for Amazon.com Inc (AMZN) stake is around $221.38 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $221.38
Bill Ackman's historical trades in Amazon.com Inc
3 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q1
|
17.39%
|
11,451,981
|
$208.27
|
$2,385,104,083
|
+19.19% (+1,844,157)
|
+2.8%
|
|
2025 Q4
|
14.28%
|
9,607,824
|
$230.82
|
$2,217,677,936
|
+64.99% (+3,784,508)
|
+5.63%
|
|
2025 Q2
|
9.31%
|
5,823,316
|
$219.39
|
$1,277,577,297
|
new
|
+9.31%
|
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.