Bill Ackman
Pershing Square Capital Management
Bill Ackman Amazon.com Inc stake
total: 47
Pershing Square Capital Management AMZN trades
- Total transactions:
- 4
- New positions:
- 1
- Added:
- 2
- Reduced:
- 1
- Held since:
- 2025 Q2
- Held for:
- 5 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Bill Ackman holds 8,563,857 Amazon.com Inc (AMZN) shares with a market value of roughly $2.04B accounting for 10.49% of the overall portfolio. To date, the estimated cost basis is nearly $221.38 for "buy" trades and estimated average "sell" price is $238.34. 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 3 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
- Weighted AVG sell price:
- $238.34
Bill Ackman's historical trades in Amazon.com Inc
4 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
10.49%
|
8,563,857
|
$238.34
|
$2,041,109,677
|
-25.22% (-2,888,124)
|
-4.82%
|
|
2026 Q1
|
16.70%
|
11,451,981
|
$208.27
|
$2,385,104,083
|
+19.19% (+1,844,157)
|
+2.69%
|
|
2025 Q4
|
13.65%
|
9,607,824
|
$230.82
|
$2,217,677,936
|
+64.99% (+3,784,508)
|
+5.38%
|
|
2025 Q2
|
8.91%
|
5,823,316
|
$219.39
|
$1,277,577,297
|
new
|
+8.91%
|
* 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.