Arkolith/Funds/140 Summer Partners LP

140 Summer Partners LP

CIK 1820788Hedge fund
Holdings as of Mar 31, 2026·disclosed May 14, 2026·~44-day 13F lag·13F-HR
Active Filer

140 Summer Partners LP holds a focused book of 20 stocks worth $1.1B as of Q1 2026 (disclosed May 14, 2026, a ~45-day 13F lag). This quarter they opened P G & E Corp and trimmed Mastec Inc. Their largest long position is Mastec Inc at 9% of the equity book. They also disclosed $369.0M in put options (a bearish bet) and $134.7M in call options (bullish), shown separately below and excluded from the equity book.

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holdings, largest changes, and filing provenance.
Opened
7
new positions
Added to
7
existing
Trimmed
5
reduced
Sold out
6
exited

Concentration

Top-heavy: focused book

Top 5 holdings
39%
Top 10 holdings
70%
Top 20 holdings
100%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

100% mapped to company sectors

Industrials
28%
Communication Services
22%
Utilities
21%
Financials
14%
Real Estate
7%
Consumer Discretionary
5%
Health Care
3%
Materials
0%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

20 positions
#SecurityValueShares% PortLast moveHistory
1Mastec Inc
COM
$105.9M329.2K
9.4%
−12%
Reduced · −45K sh
2PG&E Corp
COM
$86.7M4.93M
7.7%
New
New position
3Viking Holdings Ltd
ORD SHS
$84.5M1.15M
7.5%
+22%
Added · +207K sh
4Gaming & Leisure Pptys Inc
COM
$82.7M1.86M
7.3%
+2.5%
Added · +45K sh
5T-Mobile US Inc
COM
$81.2M386.7K
7.2%
+1.6%
Added · +6K sh
6Kodiak Gas Svcs Inc
COM
$75.6M1.30M
6.7%
New
New position
7Vistra Corp
COM
$72.6M482.7K
6.4%
+40%
Added · +137K sh
8Capital One Finl Corp
COM
$71.6M392.3K
6.3%
−36%
Reduced · −219K sh
9Aercap Holdings NV
SHS
$69.8M508.6K
6.2%
−10%
Reduced · −60K sh
10Echostar Corp
CL A
$62.1M530.4K
5.5%
−42%
Reduced · −387K sh
11Telephone & Data Sys Inc
COM NEW
$56.3M1.34M
5.0%
+1.6%
Added · +21K sh
12Somnigroup International Inc
COM
$53.0M716.9K
4.7%
+9.3%
Added · +61K sh
13Huntington Bancshares Inc
COM
$51.6M3.29M
4.6%
New
New position
14Viasat Inc
COM
$41.6M908.0K
3.7%
New
New position
15JBT Marel Corporation
COM
$40.3M315.2K
3.6%
+4.2%
Added · +13K sh
16Brookdale SR Living Inc
COM
$39.2M2.87M
3.5%
New
New position
17Bank Hawaii Corp
COM
$29.9M402.5K
2.6%
New
New position
18Grupo Aeromexico SAB De CV
SPONSORED ADS
$18.2M1.30M
1.6%
Held
19Bitdeer Technologies Group
CL A ORD SHS
$6.7M769.5K
0.6%
New
New position
20Optimum Communications Inc
CL A
$3.2M2.49M
0.3%
−20%
Reduced · −610K sh
Showing all 20 positions

Largest options & derivatives disclosed

Put / call positions from the 13F — totals include every disclosed option leg

Put notional (bearish)$369.0M
Call notional (bullish)$134.7M
TypeUnderlyingNotional valueUnderlying shares
PUT · bearishISHARES RUSSELL 2000 ETFIWM$273.8M1.1M
CALL · bullishUNITED AIRLINES HOLDINGS INCUAL$125.4M1.4M
PUT · bearishGLOBALSTAR INCGSAT$60.9M918K
PUT · bearishAERCAP HOLDINGS NVAER$34.3M250K
CALL · bullishUWM HOLDINGS CORPUWMC$9.3M2.6M

13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 14, 202625$1.6B13F-HR
Q4 2025Dec 31, 2025Feb 17, 202622$1.4B13F-HR
Q3 2025Sep 30, 2025Nov 14, 202521$1.2B13F-HR
Q2 2025Jun 30, 2025Aug 14, 202517$872.8M13F-HR
Q1 2025Mar 31, 2025May 15, 202519$769.4M13F-HR
Q4 2024Dec 31, 2024Feb 14, 202518$836.2M13F-HR
Q3 2024Sep 30, 2024Nov 13, 202421$928.3M13F-HR
Q2 2024Jun 30, 2024Aug 14, 202418$830.9M13F-HR
Q1 2024Mar 31, 2024May 15, 202417$805.9M13F-HR
Q4 2023Dec 31, 2023Feb 14, 202412$580.4M13F-HR
Q3 2023Sep 30, 2023Feb 14, 202413$512.7M13F-HR/A
Q2 2023Jun 30, 2023Aug 14, 20239$450.3M13F-HR
Q1 2023Mar 31, 2023May 15, 202312$557.9M13F-HR
Q4 2022Dec 31, 2022Feb 14, 202312$514.4M13F-HR
Q3 2022Sep 30, 2022Nov 14, 202212$489.8M13F-HR
Q2 2022Jun 30, 2022Aug 15, 202213$732.4M13F-HR
Q1 2022Mar 31, 2022May 16, 202218$1.3B13F-HR
Q4 2021Dec 31, 2021Feb 14, 202216$643.9M13F-HR
Q3 2021Sep 30, 2021Nov 15, 202118$785.7M13F-HR
Q2 2021Jun 30, 2021Aug 16, 202118$715.0M13F-HR
Q1 2021Mar 31, 2021May 17, 202121$557.5M13F-HR
Q4 2020Dec 31, 2020Feb 16, 202116$524.9M13F-HR
Amended / restated
  • Q3 2023 · filed Nov 14, 202313F-HR · superseded

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.