Stephen Mandel
Lone Pine Capital
Stephen Mandel Teradyne Inc stake
total: 304
Lone Pine Capital TER trades
- Total transactions:
- 2
- New positions:
- 1
- Reduced:
- 1
- Held since:
- 2026 Q1
- Held for:
- 2 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Stephen Mandel holds 1,493,080 Teradyne Inc (TER) shares with a market value of roughly $722.41M accounting for 4.42% of the overall portfolio. To date, the estimated cost basis is nearly $296.46 for "buy" trades and estimated average "sell" price is $483.84. Lone Pine Capital first purchased TER in 2026 Q1, initially acquiring about 1.87M shares. Since the initial investment in Teradyne Inc (TER), Lone Pine Capital has made 1 more transaction.
When did Stephen Mandel buy Teradyne Inc (TER)?
Stephen Mandel first invested in Teradyne Inc (TER) in 2026 Q1 at the reported quarter-end price of $296.46 per share.
What's the cost basis of Lone Pine Capital's TER stake?
The estimated cost basis for Teradyne Inc (TER) stake is around $296.46 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $296.46
- Weighted AVG sell price:
- $483.84
Stephen Mandel's historical trades in Teradyne Inc
2 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
4.42%
|
1,493,080
|
$483.84
|
$722,411,827
|
-20.28% (-379,796)
|
-1.46%
|
|
2026 Q1
|
4.43%
|
1,872,876
|
$296.46
|
$555,232,819
|
new
|
+4.43%
|
* 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.