How We Invest

13F FILER • DAN SUNDHEIM

D1 Capital Partners

Dan Sundheim — D1 Capital Partners L.P.

No writing by this manager has been read and indexed yet, so this page carries the filings only. Holdings come straight from the Form 13F-HR on EDGAR.

55

Positions

$34.8B

Reported Value

76.7%

In Top 10

—

Claims Indexed

Largest reported positions

D1 CAPITAL PARTNERS L.P. • CIK 0001747057 • 2026-06-30 • FILED 2026-08-14

WHAT CHANGED THIS QUARTER

In its Q2 2026 13F, filed Aug 14, 2026, D1 Capital Partners reported 55 positions worth $34.8B in US-listed stock. The largest stock position is Space Exploration Techn Corp at 61.9% of the reported book, and the ten largest lines of any type make up 76.7% of it.

It opened 21 new positions, the largest stock positions being Space Exploration Techn Corp ($21.5B), Meta Platforms Inc ($319.1M) and Intuitive Surgical Inc ($228.3M), and exited 10, the largest stock exits being Knight-Swift Transn Hldgs In ($316.2M last quarter), Broadcom Inc ($303.8M last quarter) and Nvidia Corporation ($273.6M last quarter).

Among positions it already held, the biggest increases by share count were Carvana Co (+465%), Ferguson Enterprises Inc (+267%) and Johnson Controls Internation (+207%), and the biggest cuts were Texas Instrs Inc (−77%), Amazon Com Inc (−65%) and Sea Ltd (−59%).

Largest reported positions, quarter ended 2026-06-30
IssuerValueWeightShares QoQ
SPACE EXPLORATION TECHN CORP$21.5B61.9%New
MAPLEBEAR INC$1.1B3.1%0%
JAMES HARDIE INDS PLC$721.1M2.1%-3%
NU HLDGS LTD$593.4M1.7%+72%
JOHNSON CONTROLS INTERNATION$548.2M1.6%+207%
MERCADOLIBRE INC$471.0M1.4%-26%
US FOODS HLDG CORP$460.3M1.3%+5%
DANAHER CORP DEL$434.7M1.3%-1%
SHERWIN WILLIAMS CO$431.3M1.2%+164%
REDDIT INC$427.8M1.2%+0%
THERMO FISHER SCIENTIFIC INC$409.7M1.2%+13%
KILROY REALTY CORP$393.4M1.1%-7%
CLEAN HARBORS INC$393.0M1.1%-2%
SOMNIGROUP INTERNATIONAL INC$390.1M1.1%+6%
FLOWSERVE CORP$368.5M1.1%-15%
APPLOVIN CORP$344.8M1.0%—
META PLATFORMS INC$319.1M0.9%New
FERGUSON ENTERPRISES INC$304.3M0.9%+267%
DISNEY WALT CO$276.7M0.8%+22%
ALPHABET INC$263.8M0.8%+58%

20 of 55 positions. A 13F covers long US-listed positions at a quarter end only — no shorts, leverage, cash, ordinary bonds or private holdings — and is 45 days old on publication.

NEW POSITIONS

  • Space Exploration Techn Corp$21.5B · 61.9%
  • Meta Platforms Inc$319.1M · 0.9%
  • Intuitive Surgical Inc$228.3M · 0.7%
  • Compass Inc$187.7M · 0.5%
  • Linde Plc$177.2M · 0.5%

EXITS

  • Knight-Swift Transn Hldgs In$316.2M last quarter
  • Broadcom Inc$303.8M last quarter
  • Nvidia Corporation$273.6M last quarter
  • Xpo Inc$250.5M last quarter
  • Celestica Inc$152.5M last quarter

QUESTIONS PEOPLE ASK

What are D1 Capital Partners' largest holdings?

OPEN
As of Jun 30, 2026, the three largest stock positions are Space Exploration Techn Corp (61.9%), Maplebear Inc (3.1%) and James Hardie Inds Plc (2.1%), together 67.0% of the reported book.

How big is D1 Capital Partners' 13F portfolio?

OPEN
The Q2 2026 13F, filed Aug 14, 2026, reports 55 positions worth $34.8B. The ten largest make up 76.7% of it.

What did D1 Capital Partners buy and sell in Q2 2026?

OPEN
It opened 21 new positions, the largest stock positions being Space Exploration Techn Corp ($21.5B), Meta Platforms Inc ($319.1M) and Intuitive Surgical Inc ($228.3M), and exited 10, the largest stock exits being Knight-Swift Transn Hldgs In ($316.2M last quarter), Broadcom Inc ($303.8M last quarter) and Nvidia Corporation ($273.6M last quarter). Among positions it already held, the biggest increases by share count were Carvana Co (+465%), Ferguson Enterprises Inc (+267%) and Johnson Controls Internation (+207%), and the biggest cuts were Texas Instrs Inc (−77%), Amazon Com Inc (−65%) and Sea Ltd (−59%).

When is D1 Capital Partners' next 13F due?

OPEN
The Q3 2026 13F is due Nov 16, 2026. Forty-five days after the quarter ends is November 14, 2026 (Saturday), so the deadline moves to the next business day. Dan Sundheim's filing usually lands close to the deadline.

Filers with overlapping books