Stephen Mandel
Lone Pine Capital
Stephen Mandel Talen Energy Corp stake
total: 304
Lone Pine Capital TLN trades
- Total transactions:
- 6
- New positions:
- 1
- Sold out:
- 1
- Added:
- 4
- Held since:
- 2024 Q3
- Held for:
- 7 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Stephen Mandel doesn't hold any Talen Energy Corp (TLN) shares. To date, the estimated cost basis is nearly $246.8 for "buy" trades and estimated average "sell" price is $319.23. Lone Pine Capital first purchased TLN in 2024 Q3, initially acquiring 856,215 shares. Since the initial investment in Talen Energy Corp (TLN), Lone Pine Capital has made 5 more transactions.
When did Stephen Mandel sell Talen Energy Corp (TLN)?
Stephen Mandel sold off the entire Talen Energy Corp (TLN) position in 2026 Q2.
When did Stephen Mandel buy Talen Energy Corp (TLN)?
Stephen Mandel first invested in Talen Energy Corp (TLN) in 2024 Q3 at the reported quarter-end price of $178.24 per share.
What's the cost basis of Lone Pine Capital's TLN stake?
The estimated cost basis for Talen Energy Corp (TLN) stake is around $246.80 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $246.80
- Weighted AVG sell price:
- $319.23
Stephen Mandel's historical trades in Talen Energy Corp
6 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
0.00%
|
0
|
$319.23
|
|
-100% (-1,817,947)
|
-4.63%
|
|
2026 Q1
|
4.63%
|
1,817,947
|
$319.23
|
$580,343,221
|
+40.65% (+525,431)
|
+1.34%
|
|
2025 Q4
|
3.56%
|
1,292,516
|
$374.84
|
$484,486,697
|
+8.39% (+100,000)
|
+0.28%
|
|
2025 Q3
|
3.69%
|
1,192,516
|
$425.38
|
$507,272,456
|
+9.47% (+103,136)
|
+0.32%
|
|
2024 Q4
|
1.63%
|
1,089,380
|
$201.47
|
$219,477,389
|
+27.23% (+233,165)
|
+0.35%
|
|
2024 Q3
|
1.14%
|
856,215
|
$178.24
|
$152,611,762
|
new
|
+1.14%
|
* 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.