Stephen Mandel
Lone Pine Capital
Founded Lone Pine, a 'Tiger Cub' growth fund, and later handed over the portfolio management. The 13F is Lone Pine's.
13F portfolio value
Q2 2026
$16.36B
1-year growth
+18.4%
2-year growth
+32.7%
Positions
34
Top 10 share
53.9%
Quarterly turnover
46.9%
Last filed
Aug 14, 2026
Q2 2026: summary
MakklerAI- Lone Pine opened NBIS at 7.2% ($1.2B), Seagate Technology at 5.9% ($965M), HD at 5.6% ($918M) and AMAT at 5.3% ($873M).
- It sold out of VST, previously 7.4% of the portfolio, and 14 other positions; TSM was cut 92.7% to a 0.3% weight.
- MDLN grew 77.9% to 5.1% of the portfolio, while CVNA rose 19.9% to 4.2%; CRS was cut 47.0%.
- The portfolio reached $16.4B from $12.5B in the prior quarter, with 34 positions versus 36; turnover rose to 46.9% from 39.8%, and the top ten held 53.9%.
Filings between 13Fs
Form 4 (insider trades, filed within 2 business days) and Schedule 13D/13G (stakes above 5%). Much fresher than a 13F, which can be 45 days old.
13G · passive stakeWingstop Inc.WINGMay 15, 2026
0.0% stake · 0 sharesSEC
MakklerAI
Ask MakklerAI about Stephen Mandel's portfolio
Explore this quarter's moves and where each position stands against its estimated buy price and Makkler Fair Value. Answers are based on the 13F and today's prices.