Dan Sundheim's portfolio
In the Q2 2026 13F, filed August 14, 2026, D1 Capital Partners reported 55 US stock positions worth $34.8B. The largest was SPACE EXPLORATION TECHNOLOGIES CORP (SPCX) at 61.9% of the portfolio. New positions: SPACE EXPLORATION TECHNOLOGIES CORP (SPCX), Meta Platforms (META) and Intuitive Surgical (ISRG). Added to: Maplebear (CART) and US Foods Holding (USFD). The Q3 2026 13F is due by November 14, 2026.
What changed in Q2 2026
Compared with the previous 13F. Values are as reported at quarter end. How to read a 13F.
New positions
- SPACE EXPLORATION TECHNOLOGIES CORPSPCX$21.5B
- Meta PlatformsMETA$319M
- Intuitive SurgicalISRG$228M
- CompassCOMP$188M
- LindeLIN$177M
- TeslaTSLA$169M
- Lattice SemiconductorLSCC$166M
- Builders FirstSourceBLDR$147M
- Qnity ElectronicsQ$136M
- Monolithic Power SystemsMPWR$118M
Added to
- MaplebearCART$1.1B
- US Foods HoldingUSFD$460M
- Sherwin-WilliamsSHW$431M
- RedditRDDT$428M
- Thermo Fisher ScientificTMO$410M
- Somnigroup InternationalSGI$390M
- Ferguson PlcFERG$304M
- AlphabetGOOGL$264M
- Spotify TechnologySPOT$261M
- CarvanaCVNA$249M
Trimmed
- MercadoLibreMELI$471M
- Kilroy RealtyKRC$393M
- Clean HarborsCLH$393M
- FlowserveFLS$368M
- DoorDashDASH$241M
- Capital One FinancialCOF$219M
- LineageLINE$205M
- CoupangCPNG$179M
- AffirmAFRM$156M
- Amazon.comAMZN$150M
Sold out
None this quarter.
Holdings
55 US-listed positions in the Q2 2026 13F, largest first (top 50 shown; all of them in Investingly).
| Stock | % of portfolio | Value | Shares | Last quarter |
|---|---|---|---|---|
| SPACE EXPLORATION TECHNOLOGIES CORPSPCX | 61.91% | $21.5B | 126,042,232 | New |
| MaplebearCART | 3.07% | $1.1B | 22,564,435 | Added |
| James Hardie Inds Plc | 2.07% | $721M | 27,545,516 | Held |
| Nu Hldgs | 1.71% | $593M | 44,418,543 | Held |
| Johnson Controls Internation | 1.58% | $548M | 3,751,887 | Held |
| MercadoLibreMELI | 1.35% | $471M | 277,475 | Trimmed |
| US Foods HoldingUSFD | 1.32% | $460M | 4,501,964 | Added |
| Danaher Corp Del | 1.25% | $435M | 2,282,039 | Held |
| Sherwin-WilliamsSHW | 1.24% | $431M | 1,252,471 | Added |
| RedditRDDT | 1.23% | $428M | 2,464,411 | Added |
| Thermo Fisher ScientificTMO | 1.18% | $410M | 817,123 | Added |
| Kilroy RealtyKRC | 1.13% | $393M | 10,498,120 | Trimmed |
| Clean HarborsCLH | 1.13% | $393M | 1,315,501 | Trimmed |
| Somnigroup InternationalSGI | 1.12% | $390M | 4,975,364 | Added |
| FlowserveFLS | 1.06% | $368M | 4,968,713 | Trimmed |
| ApplovinAPP | 0.99% | $345M | 669,282 | Held |
| Meta PlatformsMETA | 0.92% | $319M | 566,500 | New |
| Ferguson PlcFERG | 0.88% | $304M | 1,282,038 | Added |
| Disney Walt | 0.80% | $277M | 2,874,400 | Held |
| AlphabetGOOGL | 0.76% | $264M | 738,300 | Added |
| Spotify TechnologySPOT | 0.75% | $261M | 568,855 | Added |
| CarvanaCVNA | 0.71% | $249M | 3,779,517 | Added |
| DoorDashDASH | 0.69% | $241M | 1,303,705 | Trimmed |
| Intuitive SurgicalISRG | 0.66% | $228M | 574,200 | New |
| Charles SchwabSCHW | 0.65% | $228M | 2,466,590 | Added |
| Capital One FinancialCOF | 0.63% | $219M | 1,093,438 | Trimmed |
| LineageLINE | 0.59% | $205M | 4,736,312 | Trimmed |
| Martin Marietta MaterialsMLM | 0.57% | $199M | 345,060 | Added |
| CompassCOMP | 0.54% | $188M | 15,224,831 | New |
| CoupangCPNG | 0.51% | $179M | 10,292,141 | Trimmed |
| LindeLIN | 0.51% | $177M | 341,538 | New |
| TeslaTSLA | 0.49% | $169M | 401,900 | New |
| Lattice SemiconductorLSCC | 0.48% | $166M | 1,084,051 | New |
| Sea | 0.46% | $161M | 1,678,332 | Held |
| AffirmAFRM | 0.45% | $156M | 1,908,511 | Trimmed |
| Amazon.comAMZN | 0.43% | $150M | 628,082 | Trimmed |
| Builders FirstSourceBLDR | 0.42% | $147M | 1,639,222 | New |
| Apollo Global Mgmt | 0.39% | $137M | 1,159,000 | Held |
| Qnity ElectronicsQ | 0.39% | $136M | 833,996 | New |
| Texas InstrumentsTXN | 0.35% | $121M | 405,474 | Trimmed |
| Monolithic Power SystemsMPWR | 0.34% | $118M | 85,103 | New |
| AmrizeAMRZ | 0.34% | $117M | 2,187,487 | New |
| Unity SoftwareU | 0.29% | $102M | 3,572,473 | Added |
| LittelfuseLFUS | 0.29% | $102M | 224,164 | New |
| ShopifySHOP | 0.27% | $95M | 830,891 | New |
| CoreWeaveCRWV | 0.18% | $63M | 628,446 | New |
| SnowflakeSNOW | 0.16% | $55M | 216,019 | New |
| Hyperliquid StrategiesPURR | 0.14% | $50M | 6,342,600 | Trimmed |
| Madison Air SolutionsMAIR | 0.14% | $49M | 1,250,000 | New |
| Analog DevicesADI | 0.12% | $41M | 102,040 | Trimmed |
By sector
Share of the reported value.
Reported value over time
Total 13F value at each quarter end.
Questions
What stocks does Dan Sundheim own?
In the Q2 2026 13F, D1 Capital Partners reported 55 US stock positions worth $34.8B. The largest: SPACE EXPLORATION TECHNOLOGIES CORP (SPCX) 61.9%, Maplebear (CART) 3.1%, James Hardie Inds Plc 2.1%, Nu Hldgs 1.7%, Johnson Controls Internation 1.6%.
What did Dan Sundheim buy last quarter?
In Q2 2026: new position in SPACE EXPLORATION TECHNOLOGIES CORP (SPCX); new position in Meta Platforms (META); new position in Intuitive Surgical (ISRG); added to Maplebear (CART); added to US Foods Holding (USFD); added to Sherwin-Williams (SHW).
What did Dan Sundheim sell last quarter?
In Q2 2026: cut MercadoLibre (MELI); cut Kilroy Realty (KRC); cut Clean Harbors (CLH).
When is Dan Sundheim's next 13F?
13F filings are due 45 days after each quarter ends. The Q3 2026 filing is due by November 14, 2026.
More investors
13F filings list US-listed long positions (and some options) held at quarter end. They leave out short positions, cash, bonds and non-US holdings, and arrive up to 45 days after the quarter ends, so the investor may have traded since. Information only, not investment advice.