140 Summer Partners LP

Hedge Fund • Multi-Strategy

140 Summer Partners LP is a Multi-Strategy Hedge Fund based in New York, NY led by Peter Watkins Rosenblum, reporting $2.8B in AUM as of Q3 2025 with 35% Financial Services concentration and 64% concentrated in top 10 holdings.

CIOPeter Watkins Rosenblum

Portfolio Value: $1.2B
Positions: 20
Top Holding: COF at 9.5%
Last Reported: Q3 2025

Address888 Seventh Ave, 5th Floor, New York, NY, 10106, United States

Top Holdings

Largest long holdings in 140 Summer Partners LP's portfolio (63.6% of total portfolio)

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Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 Capital One Financial COF	Financial - Credit Services Financial Services	$112.9M	9.50%	+$6.9M Bought	0.08% 530.9K shares	Q4 2024 Held for 11 months
2 MasTec MTZ	Engineering & Construction Industrials	$81.5M	6.87%	+$81.5M New	0.49% 383.0K shares	Q3 2025 Held for 2 months
3 CRH CRH	Construction Materials Basic Materials	$79.5M	6.69%	+$3.1M Bought	0.10% 662.7K shares	Q4 2023 Held for 1y 11m
4 AerCap Holdings N.V. AER	Rental & Leasing Services Industrials	$78.4M	6.60%	-$13.8M Sold	0.36% 647.7K shares	Q3 2023 Held for 2y 2m
5 Webster Financial Corporation WBS	Banks - Regional Financial Services	$75.5M	6.36%	+$75.5M New	0.76% 1.3M shares	Q3 2025 Held for 2 months
6 T-Mobile US TMUS	Telecommunications Services Communication Services	$74.8M	6.30%	+$40.3M Bought	0.03% 312.5K shares	Q4 2020 Held for 4y 11m
7 Mr. Cooper Group Inc. COOP	Financial - Mortgages Financial Services	$69.9M	5.88%	-$29.1M Sold	0.52% 331.4K shares	Q4 2024 Held for 11 months
8 Progressive PGR	Insurance - Property & Casualty Financial Services	$62.8M	5.29%	+$4.0M Bought	0.04% 254.4K shares	Q3 2023 Held for 2y 2m
9 Pentair PNR	Industrial - Machinery Industrials	$60.8M	5.12%	+$60.8M New	0.33% 548.5K shares	Q3 2025 Held for 2 months
10 SGI Silicon Graphics International Corp SGI	Unknown Unknown	$58.9M	4.96%	-$14.5M Sold	— 699.0K shares	Q1 2025 Held for 8 months

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Changes

Portfolio activity, position movements, and quarter-over-quarter changes in 140 Summer Partners LP's latest filing

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Market Value

$1.2B

Prior: $832.1M

Q/Q Change

+42.7%

+$355.3M

Net Flows % of MV

+21.93%

Turnover Ratio

26.44%

New Purchases

7 stocks

$386.1M

Added To

4 stocks

+$54.3M

Sold Out Of

2 stocks

$74.6M

Reduced Holdings

8 stocks

-$105.4M

Increased Positions

Position	Shares Δ	Change
1 MasTec MTZ	New	0 → 383.0K +$81.5M
2 Webster Financial Corporation WBS	New	0 → 1.3M +$75.5M
3 Pentair PNR	New	0 → 548.5K +$60.8M
4 PennyMac Financial Services, Inc. PFSI	New	0 → 446.1K +$55.3M
5 JBT Marel Corporation JBTM	New	0 → 353.5K +$49.7M

Decreased Positions

Position	Shares Δ	Change
1 Western Alliance Bancorporation WAL	Sold	781.0K → 0 −$60.9M
2 EchoStar SATS	Sold	494.4K → 0 −$13.7M
3 Mr. Cooper Group Inc. COOP	-29.39%	469.3K → 331.4K −$29.1M
4 Telephone and Data Systems TDS	-24.08%	1.6M → 1.2M −$15.5M
5 SGI Tempur Sealy International SGI	-19.74%	870.9K → 699.0K −$14.5M