Stephen Mandel portfolio
Lone Pine Capital · 13F for Q2 2026, filed Aug 14, 2026
Lone Pine Capital, the firm Stephen Mandel founded, reported 34 positions worth $16.4B as of Jun 30, 2026. The largest were Nebius Group N.V. (7.2%), ASML Holding Nv (6.9%) and Seagate Technology Holdings plc (5.9%). Against Q1 2026: 13 new, 7 added to, 12 reduced, 15 sold out.
The filing on sec.gov · Every fund · What a 13F shows
- Reported value
- $16.4Bas of Jun 30
- Positions
- 3413 new, 15 sold out
- Largest position
- NBIS7.2% of the portfolio
- Top 10 positions
- 54%of reported value
What Stephen Mandel bought
Largest 8 of 20| Position | Change | Value |
|---|---|---|
| NBISNebius Group N.V. | New | $1.2B |
| STXSeagate Technology Holdings plc | New | $965M |
| HDHome Depot, Inc. | New | $918M |
| AMATApplied Materials Inc | New | $873M |
| LINLinde Plc | New | $809M |
| TTMITTM Technologies Inc | New | $512M |
| STRLSterling Infrastructure, Inc. | New | $512M |
| ONONOn Holding AG | New | $470M |
What Stephen Mandel sold
Largest 8 of 27| Position | Change | Value |
|---|---|---|
| VSTVistra Corp. | Sold out | $930M |
| TSMTaiwan Semiconductor Manufacturing Co Ltd | −92.7% | $615M |
| TLNTalen Energy Corp | Sold out | $580M |
| CLHClean Harbors Inc | Sold out | $503M |
| BNBROOKFIELD Corp | −92.9% | $444M |
| THCTenet Healthcare Corp | Sold out | $426M |
| COFCapital One Financial Corp | Sold out | $414M |
| ENTGEntegris Inc | Sold out | $365M |
Every position, largest first
34 positions, Q2 2026| Position | Portfolio | Value | Change |
|---|---|---|---|
| NBISNebius Group N.V. | 7.19% | $1.2B | New |
| ASMLASML Holding Nv | 6.92% | $1.1B | −13.1% |
| STXSeagate Technology Holdings plc | 5.90% | $965M | New |
| HDHome Depot, Inc. | 5.61% | $918M | New |
| AMATApplied Materials Inc | 5.34% | $873M | New |
| MDLNMedline Inc. | 5.06% | $827M | +77.9% |
| LINLinde Plc | 4.94% | $809M | New |
| TERTeradyne, Inc | 4.42% | $722M | −20.3% |
| GLWCorning Inc | 4.26% | $697M | −26.6% |
| CVNACarvana Co. | 4.23% | $692M | — |
| HUTHUT 8 Corp. | 4.07% | $666M | −5.0% |
| PFGCPerformance Food Group Co | 4.00% | $654M | +47.1% |
| NUNU Holdings Ltd. | 3.86% | $631M | +24.2% |
| WULFTerawulf Inc. | 3.65% | $596M | +21.2% |
| CRSCarpenter Technology Corp | 3.63% | $594M | — |
| MTZMastec Inc | 3.42% | $560M | −12.1% |
| APPAppLovin Corp | 3.28% | $537M | −28.9% |
| TTMITTM Technologies Inc | 3.13% | $512M | New |
| STRLSterling Infrastructure, Inc. | 3.13% | $512M | New |
| USFDUS Foods Holding Corp. | 3.07% | $503M | +29.5% |
| ONONOn Holding AG | 2.88% | $470M | New |
| LPLALPL Financial Holdings Inc. | 2.10% | $343M | −40.5% |
| AGXArgan Inc | 1.80% | $294M | −6.2% |
| BTDRBitdeer Technologies Group | 0.68% | $111M | New |
| SHAZSharonAI Holdings Inc. | 0.63% | $102M | New |
9 more positions
| Position | Portfolio | Value | Change |
|---|---|---|---|
| GOOGLAlphabet Inc. | 0.47% | $77.0M | +14.9% |
| KGSKodiak Gas Services, Inc. | 0.39% | $63.5M | New |
| VVisa Inc. | 0.35% | $56.9M | +78.9% |
| IBKRInteractive Brokers Group, Inc. | 0.31% | $50.3M | New |
| TSMTaiwan Semiconductor Manufacturing Co Ltd | 0.30% | $48.4M | −92.7% |
| Sea Ltd-Adr | 0.29% | $47.4M | New |
| MCKMcKesson Corp | 0.27% | $43.7M | −85.3% |
| TDGTransDigm Group INC | 0.23% | $38.0M | −20.0% |
| BNBROOKFIELD Corp | 0.21% | $33.8M | −92.9% |
What a 13F shows
This is Lone Pine Capital’s Form 13F for the quarter ended Jun 30, 2026, filed with the SEC on Aug 14, 2026 as LONE PINE CAPITAL LLC. A 13F lists long positions in US-listed securities on the quarter’s last day: shares, convertible bonds, puts and calls. It does not list short positions, cash, private holdings or most securities listed abroad, and a position may have changed since.
Options are shown as options, never added to the shares of the stock they are written on. A change is the share count against the fund's filing for Q1 2026; the estimated value of a change uses the price the filing's own figures imply. Where a count moved with a stock split, no change is shown.
