Stephen Mandel
Lone Pine Capital
Lone Pine Capital Portfolio 13F
Stephen Mandel Holdings Activity
- Portfolio value:
- $12.54B~ (-$1B~)
- Previous value:
- $13.61B~
- # of changes:
- 43
- New positions:
- 11
- Reported for:
- 31 Mar 2026 (Q1)
- Latest filing date:
- 15 May 2026
Lone Pine Capital has disclosed a total of 43 changes to the portfolio in the (2026 Q1) SEC report(s): increased the number of shares of 14, bought 11 totally new, decreased the number of shares of 11 and completely sold out 7 position(s).
What stocks did Stephen Mandel buy in 2026 Q1?
During 2026 Q1 Stephen Mandel has bought 25 securities out of which top 5 purchases (by % change to portfolio) were (VST) Vistra Corp (added shares +18.72%), (ASML) ASML Holding NV ADR (added shares +8.29%), (CRS) Carpenter Technology Corp (added shares +38.46%), (APP) Applovin Corp (added shares +87.68%) and (TLN) Talen Energy Corp (added shares +40.65%).
In the 2026 Q1 report(s) the following changes have been made to the top investments: (VST) Vistra Corp (added shares +18.72%), (ASML) ASML Holding NV ADR (added shares +8.29%), (CRS) Carpenter Technology Corp (added shares +38.46%), (LPLA) LPL Financial Holdings Inc (reduced shares -1.20%) and (APP) Applovin Corp (added shares +87.68%).
43 results
| History | Ticker | Name |
% or activity |
Shares change |
Shares held after* |
% change to portfolio |
Reported price* |
% difference current price* |
% of portfolio |
Held since* | Held for* |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Alphabet Inc, CL-A
|
new
|
+187,561
|
187,561
|
+0.43%
|
$287.56
|
+20.04%($345.18)
|
0.43%
|
2026 Q1
|
~0.25 years
|
|
|
|
Argan Inc
|
new
|
+393,134
|
393,134
|
+1.71%
|
$544.65
|
-7.20%($505.42)
|
1.71%
|
2026 Q1
|
~0.25 years
|
|
|
|
Ciena Corp
|
new
|
+809,522
|
809,522
|
+2.51%
|
$388.23
|
+2.48%($397.84)
|
2.51%
|
2026 Q1
|
~0.25 years
|
|
|
|
Corning Incorporated
|
new
|
+3,718,147
|
3,718,147
|
+4.03%
|
$135.97
|
+10.45%($150.18)
|
4.03%
|
2026 Q1
|
~0.25 years
|
|
|
|
Hut 8 Corp
|
new
|
+6,078,951
|
6,078,951
|
+2.27%
|
$46.91
|
+69.12%($79.34)
|
2.27%
|
2026 Q1
|
~0.25 years
|
|
|
|
MasTec Inc
|
new
|
+1,531,050
|
1,531,050
|
+3.93%
|
$321.74
|
-17.10%($266.72)
|
3.93%
|
2026 Q1
|
~0.25 years
|
|
|
|
McKesson Corp
|
new
|
+392,224
|
392,224
|
+2.71%
|
$865.36
|
-0.39%($861.98)
|
2.71%
|
2026 Q1
|
~0.25 years
|
|
|
|
Performance Food Group Co
|
new
|
+3,978,158
|
3,978,158
|
+2.72%
|
$85.66
|
+22.01%($104.51)
|
2.72%
|
2026 Q1
|
~0.25 years
|
|
|
|
Teradyne Inc
|
new
|
+1,872,876
|
1,872,876
|
+4.43%
|
$296.46
|
+26.59%($375.29)
|
4.43%
|
2026 Q1
|
~0.25 years
|
|
|
|
Terawulf Inc
|
new
|
+19,921,430
|
19,921,430
|
+2.29%
|
$14.43
|
+7.45%($15.50)
|
2.29%
|
2026 Q1
|
~0.25 years
|
|
* 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.
* Current price: this can be a delayed price and may not reflect the real-time market value, however it is too close.
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* Held since / Held for: calculated since the latest "new buy" position. If the security was previously exited and re-entered, only the most recent holding period is counted. 2013 Q2 is the earliest period we have data for, so "2013 Q2*" means "2013 Q2 or earlier".