Daniel Sundheim D1 Capital Partners
Daniel Sundheim is the founder of D1 Capital Partners, a firm active in public equities and private investments with a growth-oriented focus. He previously was a senior investor at Viking Global before launching D1. The firm’s public portfolio is tracked for exposure to consumer, technology, and other high-quality growth businesses.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
James Hardie Industries
JHX
|
+$455M |
| 2 |
Flowserve
FLS
|
+$315M |
| 3 |
Mercado Libre
MELI
|
+$309M |
| 4 |
Kilroy Realty
KRC
|
+$260M |
| 5 |
Clean Harbors
CLH
|
+$237M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Entegris
ENTG
|
+$257M |
| 2 |
ANSS
Ansys
ANSS
|
+$230M |
| 3 |
D.R. Horton
DHI
|
+$198M |
| 4 |
Nu Holdings
NU
|
+$195M |
| 5 |
Toll Brothers
TOL
|
+$183M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Industrials | 24.62% |
| 2 | Consumer Discretionary | 17% |
| 3 | Communication Services | 16.85% |
| 4 | Financials | 14.19% |
| 5 | Consumer Staples | 7.34% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1
Maplebear
CART
$11.5B
| $829M | 9.52% |
22,558,255
| – | – |
|
2
Applovin
APP
$102B
| $601M | 6.9% |
836,782
+46,800
| +6% | +$21.6M |
|
|
3
Clean Harbors
CLH
$16.7B
| $568M | 6.52% |
2,445,583
+1,001,946
| +69% | +$237M |
|
4
Reddit
RDDT
$29.5B
| $466M | 5.35% |
2,024,597
+97,597
| +5% | +$19.9M |
|
|
5
Flowserve
FLS
$10.1B
| $397M | 4.56% |
7,479,351
+5,793,351
| +344% | +$315M |
|
|
6
James Hardie Industries
JHX
$17.7B
| $365M | 4.19% |
+18,997,847
| New | +$455M |
|
|
SCHW
7
Charles Schwab
SCHW
$194B
| $365M | 4.19% |
3,821,904
+298,000
| +8% | +$28.3M |
|
|
8
Kilroy Realty
KRC
$4.25B
| $358M | 4.12% |
8,482,654
+6,595,654
| +350% | +$260M |
|
9
XPO
XPO
$23.2B
| $324M | 3.72% |
2,505,738
-639,178
| -20% | -$83M |
|
|
10
Mercado Libre
MELI
$97.5B
| $301M | 3.46% |
+128,803
| New | +$309M |
|
11
Bank of America
BAC
$431B
| $285M | 3.27% |
5,524,547
-2,440,600
| -31% | -$119M |
|
12
Core & Main
CNM
$8.4B
| $279M | 3.2% |
5,176,680
-836,000
| -14% | -$50.6M |
|
|
PRMB
13
Primo Brands
PRMB
$8.37B
| $261M | 3% |
11,814,815
+7,004,796
| +146% | +$181M |
|
14
US Foods
USFD
$23.7B
| $258M | 2.96% |
3,361,200
+2,329,200
| +226% | +$185M |
|
|
LINE
15
Lineage Inc
LINE
$9.48B
| $239M | 2.74% |
6,181,894
+1,559,300
| +34% | +$64.8M |
|
16
Sea Limited
SE
$72B
| $231M | 2.65% |
+1,292,643
| New | +$221M |
|
17
Broadcom
AVGO
$1.75T
| $220M | 2.53% |
+667,400
| New | +$205M |
|
18
Capital One
COF
$134B
| $209M | 2.4% |
981,310
-180,690
| -16% | -$39.6M |
|
19
Meta Platforms (Facebook)
META
$1.4T
| $199M | 2.29% |
+271,400
| New | +$202M |
|
20
Danaher
DHR
$154B
| $180M | 2.07% |
908,691
+746,184
| +459% | +$148M |
|
|
21
Nu Holdings
NU
$70.4B
| $163M | 1.87% |
10,178,933
-13,954,000
| -58% | -$195M |
|
22
Apollo Global Management
APO
$78.4B
| $154M | 1.77% |
1,159,000
-256,000
| -18% | -$36.2M |
|
23
Knight Transportation
KNX
$11.7B
| $147M | 1.69% |
+3,730,000
| New | +$162M |
|
24
Walt Disney
DIS
$186B
| $138M | 1.59% |
+1,206,000
| New | +$142M |
|
25
Carpenter Technology
CRS
$24.4B
| $124M | 1.42% |
505,329
-317,058
| -39% | -$81.1M |
|
Similar funds
Daniel Sundheim's Q3 2025 Portfolio in Review
As of Q3 2025, Daniel Sundheim held 46 positions worth $8.71B, up 21% from $7.2B the previous quarter. Its ten largest holdings account for 53% of the portfolio.
Daniel Sundheim deployed $1.37B of net new capital in Q3 2025, opening 13 new positions and adding to 10 existing holdings. Its largest new stake was James Hardie Industries: 18,997,847 shares worth $365M.
By sector, the portfolio is most concentrated in Industrials at 25% of assets, up from 24% a quarter earlier, followed by Consumer Discretionary and Communication Services.
On the sell side, the largest reduction was Entegris, an estimated $257M trimmed.
- Daniel Sundheim's largest Q3 2025 buy was James Hardie Industries: 18,997,847 shares worth $365M.
- Daniel Sundheim added most to Flowserve in Q3 2025, an estimated $315M increase.
- Daniel Sundheim's biggest Q3 2025 reduction was Entegris, cutting an estimated $257M.
- Daniel Sundheim fully exited Ansys in Q3 2025, selling an estimated $230M.
- Daniel Sundheim's ten largest holdings make up 53% of its $8.71B portfolio in Q3 2025.
- Daniel Sundheim opened 13 new positions and closed 8 in Q3 2025.
- Daniel Sundheim's portfolio value rose 21% quarter-over-quarter to $8.71B.
Based on D1 Capital Partners's 13F filing for Q3 2025, filed 14 Nov 2025.