Stephen Mandel's portfolio
Lone Pine Capital · SEC CIK 1061165
Quality growth long/short.
This filing is 94 days old. Lone Pine Capital keeps roughly 73% of its positions in a typical quarter, so about 73% of this book is likely still intact today.
How half-life is computedSnapshot half-life is the number of days after the period end at which half of this specific fund's reported book is expected to have changed, measured from its own past filings. It is a decay estimate, not knowledge of current positions.
Largest holdings, as filed
Top 10 of 34 positions. Weights are against the whole filed book. 13F filings cover US-listed holdings only.
| Company | Ticker | Value | % of book | Freshness |
|---|---|---|---|---|
| NEBIUS GROUP N.V. | $1.18B | 7.2% | n/a | |
| ASML HLDG NV | $1.13B | 6.9% | n/a | |
| SEAGATE TECHNOLOGY HLDNGS PL | $965.11M | 5.9% | n/a | |
| HOME DEPOT INC | HD | $918.09M | 5.6% | |
| APPLIED MATLS INC | AMAT | $873.19M | 5.3% | |
| MEDLINE INC | MDLN | $826.99M | 5.1% | |
| LINDE PLC | $808.55M | 4.9% | n/a | |
| TERADYNE INC | TER | $722.41M | 4.4% | |
| CORNING INC | GLW | $696.83M | 4.3% | |
| CARVANA CO | CVNA | $692.47M | 4.2% |
Freshness: how likely each position is still held today, from this fund's own turnover history, each position's tenure and the filing's age. Hover a bar for the numbers. Method.
What changed last quarter
Between Q1 2026 and Q2 2026, the largest new position was HD, now $918.09M; the largest trim was TER (shares down 20%); VST, TLN, CLH no longer appear among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Biggest buys, Q2 2026
Common questions
What are Stephen Mandel's biggest holdings?
As of the Q2 2026 13F, the largest reported positions at Lone Pine Capital are NEBIUS GROUP N.V. (7.2% of the book), ASML HLDG NV (6.9% of the book), SEAGATE TECHNOLOGY HLDNGS PL (5.9% of the book).
How big is Lone Pine Capital's portfolio?
The latest 13F reports $16.36B across 34 US-listed positions. 13F filings cover US-listed holdings only, so non-US positions and shorts are not included.
Does Stephen Mandel still hold these positions?
Unknown for certain: a 13F may be filed up to 45 days after quarter end. Based on Lone Pine Capital's own filing history, the fund keeps roughly 73% of positions in a typical quarter, so at 94 days since the period end roughly 73% of this book is likely intact. The snapshot half-life for this fund is about 203 days.
What did Stephen Mandel buy and sell last quarter?
Between Q1 2026 and Q2 2026, the largest new position was HD, now $918.09M; the largest trim was TER (shares down 20%); VST, TLN, CLH no longer appear among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Funds with overlapping books
Every 13F we hold, quarter by quarter
Each filing has its own page: the whole book as filed that quarter and what changed from the filing before.
Inside the app: the full book for Lone Pine Capital, quarter on quarter buys and sells, consensus across 140+ funds and copy-to-watchlist.
Source: SEC EDGAR 13F filings. Values are as filed and cover US-listed positions only. A 13F may be filed up to 45 days after the quarter ends, so positions can change before the filing is even public; the freshness figures above quantify that lag instead of hiding it. Educational information, not financial advice.