Stephen Mandel Holdings 13F: Latest Lone Pine Capital Portfolio Changes
Lone Pine Capital. Tiger Cub focused on fundamental equity. Stephen Mandel's Lone Pine is known for deep bottom-up research, identifying great businesses with strong management, and maintaining a relatively low public profile.
As of the latest Q1 2026 13F filing, Stephen Mandel (managing Lone Pine Capital) reported a public portfolio value of $12.5B with 36 positions. This page tracks latest holdings, latest 13F changes, top buys, top sells, and top holdings from the public filing. The top recent buy was VST. The top recent sell was LPLA.
Open interactive portfolioLatest 13F portfolio changes
Stephen Mandel holdings 13F summary: the latest Lone Pine Capital portfolio changes show top holdings including VISTRA, ASML HLDG NV, CARPENTER TECHNOLOGY, LPL FINL HLDGS, and APPLOVIN, reported top buys such as VISTRA, ASML HLDG NV, CARPENTER TECHNOLOGY, and APPLOVIN, and top sells or reductions such as LPL FINL HLDGS, BROADCOM, Microsoft, and DOORDASH.
Latest filing metadata: quarter Q1 2026; report date 2026-03-31; filing date 2026-05-15; disclosure source SEC 13F.
Stephen Mandel 13F portfolio and latest holdings overview
Stephen Mandel's Q1 2026 13F holdings show Lone Pine Capital reporting 36 positions with a disclosed portfolio value of $12.5B. For readers searching Stephen Mandel 13F holdings, Stephen Mandel portfolio, Lone Pine Capital holdings, or latest 13F changes, the latest top holdings include VISTRA, ASML HLDG NV, CARPENTER TECHNOLOGY, LPL FINL HLDGS, and APPLOVIN.
The three largest reported positions add up to roughly 20.0%, which helps readers judge portfolio concentration rather than just headline AUM. The largest reported sector exposure is Information Technology at 32.5% of the disclosed portfolio. This makes the page useful for comparing the manager's actual disclosed exposure with market narratives around the same names.
The latest change data highlights reported buys such as VISTRA, ASML HLDG NV, CARPENTER TECHNOLOGY, APPLOVIN, and TALEN ENERGY and reported reductions or exits such as LPL FINL HLDGS, BROADCOM, Microsoft, DOORDASH, and Amazon. Those changes should be read as historical disclosure signals, not as real-time trade alerts.
The filing metadata lists report date 2026-03-31, filing date 2026-05-15, SEC accession 0000919574-26-003439. SEC 13F reports are normally published up to 45 days after quarter end, so the data is best used to understand institutional positioning after the fact rather than to infer today's exact portfolio.
Stephen Mandel portfolio analytics
the top five positions account for 29.6% of disclosed value; the largest sector exposure is Information Technology at 32.5%; reported buy and sell activity implies roughly 127.2% turnover this period; cost-basis P&L across 35 tracked positions averages 143.8% (16/22 currently in profit).
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| VST whale holders VISTRA CORP | $930.2M | 7.4% | Increased |
| ASML whale holders ASML HLDG NV | $865.3M | 6.9% | Increased |
| CRS whale holders CARPENTER TECHNOLOGY CORP | $716.5M | 5.7% | Increased |
| LPLA whale holders LPL FINL HLDGS INC | $616.7M | 4.9% | Reduced |
| APP whale holders APPLOVIN CORP | $583.0M | 4.7% | Increased |
| TLN whale holders TALEN ENERGY CORP | $580.3M | 4.6% | Increased |
| TER whale holders TERADYNE INC | $555.2M | 4.4% | New |
| CVNA whale holders CARVANA CO | $551.6M | 4.4% | Reduced |
| NU whale holders NU HLDGS LTD | $546.2M | 4.3% | Increased |
| MDLN whale holders MEDLINE INC | $524.6M | 4.2% | Increased |
Top buys
- VST whale holders — VISTRA CORP ($930.2M)
- ASML whale holders — ASML HLDG NV ($865.3M)
- CRS whale holders — CARPENTER TECHNOLOGY CORP ($716.5M)
- APP whale holders — APPLOVIN CORP ($583.0M)
- TLN whale holders — TALEN ENERGY CORP ($580.3M)
- TER whale holders — TERADYNE INC ($555.2M)
Top sells
- LPLA whale holders — LPL FINL HLDGS INC ($616.7M)
- AVGO whale holders — BROADCOM INC ($598.8M)
- MSFT whale holders — MICROSOFT CORP ($596.8M)
- DASH whale holders — DOORDASH INC ($573.0M)
- AMZN whale holders — AMAZON COM INC ($557.3M)
- CVNA whale holders — CARVANA CO ($551.6M)
Allocation
- Information Technology: 32.5%
- Financials: 13.2%
- Other: 11.4%
- Health Care: 10.3%
- Industrials: 10.0%
- Utilities: 7.4%
- Consumer Staples: 5.5%
- Consumer Discretionary: 4.7%
Data notes
Report date: 2026-03-31
Disclosure source: SEC 13F
SEC 13F filings are delayed public disclosures and do not include every asset class, short positions, or real-time trades.
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Frequently asked questions
Stephen Mandel 13F Holdings
The Q1 2026 13F profile for Stephen Mandel and Lone Pine Capital shows 36 reported positions, $12.5B in disclosed portfolio value, and top holdings including VISTRA, ASML HLDG NV, CARPENTER TECHNOLOGY, LPL FINL HLDGS, and APPLOVIN.
What is Stephen Mandel buying? Latest 13F changes
The latest tracked change data for Stephen Mandel highlights reported buys such as VISTRA, ASML HLDG NV, CARPENTER TECHNOLOGY, and APPLOVIN and reported sells or reductions such as LPL FINL HLDGS, BROADCOM, Microsoft, and DOORDASH.
Lone Pine Capital top holdings
Lone Pine Capital top holdings are summarized from public disclosures with reported values, weights, portfolio concentration, top buys, top sells, and filing metadata where available.
Stephen Mandel buys and sells
Use the top buys and top sells sections above to compare Stephen Mandel's reported additions, reductions, exits, and latest portfolio activity against other tracked investors.
How delayed is Stephen Mandel's 13F data?
SEC Form 13F requires institutional investment managers with $100M+ in US equities to disclose their holdings quarterly. Read our comprehensive 13F guide for timing, coverage, and limitations. Read the Whale Analyzer 13F guide.