Eric Mandelblatt Soroban Capital Partners
Eric Mandelblatt is the founder of Soroban Capital Partners, a fundamental long/short equity firm. Soroban is known for research-intensive positions and a flexible approach across sectors. Mandelblatt’s public portfolio is followed among large fundamental hedge fund managers.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$600M |
| 2 |
Meta Platforms (Facebook)
META
|
+$355M |
| 3 |
American Electric Power
AEP
|
+$266M |
| 4 |
CDW
CDW
|
+$252M |
| 5 |
Southern Company
SO
|
+$168M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$108M |
| 2 |
Microsoft
MSFT
|
+$88.3M |
| 3 |
Brookfield
BN
|
+$87.9M |
| 4 |
CoStar Group
CSGP
|
+$83.3M |
| 5 |
WEC Energy
WEC
|
+$58.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 29.53% |
| 2 | Utilities | 18.73% |
| 3 | Financials | 15.04% |
| 4 | Communication Services | 12.48% |
| 5 | Industrials | 10.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
26
WEC Energy
WEC
$34.5B
| $34.2M | 0.33% |
328,453
-548,891
| -63% | -$58.4M |
|
|
PPL
27
PPL Corp
PPL
$25.9B
| $30.3M | 0.3% |
894,052
-678,082
| -43% | -$23.6M |
|
28
TransDigm Group
TDG
$66.4B
| $23.7M | 0.23% |
+15,562
| New | +$21.9M |
|
29
Restaurant Brands International
QSR
$28.2B
| $19.9M | 0.19% |
300,000
| – | – |
|
|
30
CoStar Group
CSGP
$13.1B
| – | – |
-1,050,747
| Closed | -$83.3M |
|
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Eric Mandelblatt's Q2 2025 Portfolio in Review
As of Q2 2025, Eric Mandelblatt held 30 positions worth $10.3B, up 45% from $7.09B the previous quarter. Its ten largest holdings account for 71% of the portfolio.
Eric Mandelblatt deployed $1.87B of net new capital in Q2 2025, opening 3 new positions and adding to 15 existing holdings. Its largest new stake was Meta Platforms (Facebook): 574,085 shares worth $424M.
By sector, the portfolio is most concentrated in Technology at 30% of assets, up from 25% a quarter earlier, followed by Utilities and Financials.
On the sell side, the largest reduction was Alphabet (Google) Class A, an estimated $108M trimmed.
- Eric Mandelblatt's largest Q2 2025 buy was Meta Platforms (Facebook): 574,085 shares worth $424M.
- Eric Mandelblatt added most to Amazon in Q2 2025, an estimated $600M increase.
- Eric Mandelblatt's biggest Q2 2025 reduction was Alphabet (Google) Class A, cutting an estimated $108M.
- Eric Mandelblatt fully exited CoStar Group in Q2 2025, selling an estimated $83.3M.
- Eric Mandelblatt's ten largest holdings make up 71% of its $10.3B portfolio in Q2 2025.
- Eric Mandelblatt opened 3 new positions and closed 1 in Q2 2025.
- Eric Mandelblatt's portfolio value rose 45% quarter-over-quarter to $10.3B.
Based on Soroban Capital Partners's 13F filing for Q2 2025, filed 14 Aug 2025.