140 Summer Partners LP — 13F Holdings & Portfolio
CIK 1820788 · latest 13F-HR filed 2026-08-14
140 Summer Partners LP manages $1.40B in 13F-reported U.S. long-equity assets across 22 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are VSAT (14.41%), PCG (10.27%), MTZ (7.97%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 4 new positions and exited 4; 8 existing positions rose in reported value and 5 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 71.8%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 20, 2026.
5TH FLOOR
NEW YORK, NY 10106
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| 140 SUMMER PARTNERS GP LLC Control | GENERAL PARTNER since Oct 2019 | Less than 5% | Domestic Entity |
| ARPS, KEVIN, RAYMOND Control | CHIEF FINANCIAL OFFICER & CHIEF COMPLIANCE OFFICER since Nov 2019 | Less than 5% | Individual |
| DAVIS, JESSICA, ABIGAIL Control | CHIEF OPERATING OFFICER & HEAD OF BUSINESS DEVELOPMENT since Mar 2020 | Less than 5% | Individual |
| ROSENBLUM, PETER, WATKINS Control | MANAGING PARTNER & CIO since Oct 2019 | 75% or more | Individual |
| 140 SUMMER TRUST | LIMITED PARTNER since Jun 2020 | 10–25% | Domestic Entity |
| ROSENBLUM, PETER, WATKINS Control Indirect owner via 140 SUMMER PARTNERS GP LLC | MANAGING MEMBER since Oct 2019 | 75% or more | Individual |
| WATKINS, ELOISE Control Indirect owner via 140 SUMMER TRUST | TRUSTEE since Jun 2020 | General partner, trustee or manager | Individual |
Ownership & leadership changes · 1 filing with changes since Apr 13, 2020
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- Added140 SUMMER TRUST · LIMITED PARTNER · 10–25%
- AddedWATKINS, ELOISE · TRUSTEE · General partner, trustee or manager · indirect via 140 SUMMER TRUST · control person
- ChangedDAVIS, JESSICA, ABIGAIL · title CHIEF OPERATING OFFICER → CHIEF OPERATING OFFICER & HEAD OF BUSINESS DEVELOPMENT
- Listed140 SUMMER PARTNERS GP LLC · GENERAL PARTNER · Less than 5% · control person
- ListedARPS, KEVIN, RAYMOND · CHIEF FINANCIAL OFFICER & CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ListedDAVIS, JESSICA, ABIGAIL · CHIEF OPERATING OFFICER · Less than 5% · control person
- ListedROSENBLUM, PETER, WATKINS · MANAGING PARTNER & CIO · 75% or more · control person
- ListedROSENBLUM, PETER, WATKINS · MANAGING MEMBER · 75% or more · indirect via 140 SUMMER PARTNERS GP LLC · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- VIASAT INC$160.2M +385.2%
- BITDEER TECHNOLOGIES GROUP$43.4M +652.3%
- SOMNIGROUP INTERNATIONAL INC$25.0M +47.3%
- KODIAK GAS SVCS INC$22.3M +29.4%
- BROOKDALE SR LIVING INC$8.1M +20.6%
Top Trims
- PG&E CORP-$52.9M -61.0%
- TELEPHONE & DATA SYS INC-$20.4M -36.3%
- VIKING HOLDINGS LTD-$13.3M -15.7%
- AERCAP HOLDINGS NV-$11.6M -16.6%
- CAPITAL ONE FINL CORP-$11.3M -15.8%
New Positions
- CIPHER DIGITAL INC$49.8M
- NVENT ELEC PLC$35.1M
- FLOWSERVE CORP$21.3M
- BRASKEM SA$19.6M
Exited Positions
- T-MOBILE US INC$81.2M
- ECHOSTAR CORP$62.1M
- JBT MAREL CORPORATION$40.3M
- OPTIMUM COMMUNICATIONS INC$3.2M
140 Summer Partners LP Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | VIASAT INC | VSAT | 92552V100 | $201.8M | 14.41% | 2,246,829 | SH |
| 2 | PG&E CORP Call | PCG | 69331C108 | $143.8M | 10.27% | 8,552,200 | SH |
| 3 | MASTEC INC | MTZ | 576323109 | $111.6M | 7.97% | 268,168 | SH |
| 4 | KODIAK GAS SVCS INC | KGS | 50012A108 | $97.8M | 6.99% | 1,302,130 | SH |
| 5 | GAMING & LEISURE P | GLPI | 36467J108 | $83.0M | 5.93% | 1,863,923 | SH |
| 6 | SOMNIGROUP INTERNATIONAL INC | SGI | 88023U101 | $78.0M | 5.57% | 995,287 | SH |
| 7 | VISTRA CORP | VST | 92840M102 | $74.1M | 5.29% | 467,231 | SH |
| 8 | VIKING HOLDINGS LTD | VIK | G93A5A101 | $71.2M | 5.08% | 680,162 | SH |
| 9 | CAPITAL ONE FINL CORP | COF | 14040H105 | $60.3M | 4.30% | 300,464 | SH |
| 10 | AERCAP HOLDINGS NV | AER | N00985106 | $58.2M | 4.16% | 399,305 | SH |
| 11 | HUNTINGTON BANCSHARES INC | HBAN | 446150104 | $50.6M | 3.61% | 2,851,758 | SH |
| 12 | BITDEER TECHNOLOGIES GROUP | BTDR | G11448100 | $50.1M | 3.58% | 3,155,340 | SH |
| 13 | CIPHER DIGITAL INC | CIFR | 17253J106 | $49.8M | 3.55% | 2,031,116 | SH |
| 14 | BROOKDALE SR LIVING INC | BKD | 112463104 | $47.3M | 3.38% | 2,941,020 | SH |
| 15 | TELEPHONE & DATA SYS INC | TDS | 879433829 | $35.8M | 2.56% | 968,633 | SH |
| 16 | NVENT ELEC PLC | NVT | G6700G107 | $35.1M | 2.51% | 206,934 | SH |
| 17 | PG&E CORP | PCG | 69331C108 | $33.8M | 2.41% | 2,008,289 | SH |
| 18 | BANK HAWAII CORP | BOH | 062540109 | $31.8M | 2.27% | 389,927 | SH |
| 19 | GRUPO AEROMEXICO SAB DE CV | AERO | 40054J109 | $23.4M | 1.67% | 1,298,388 | SH |
| 20 | DOW HLDGS INC Put | DOW | 260557103 | $21.9M | 1.56% | 800,000 | SH |
| 21 | FLOWSERVE CORP | FLS | 34354P105 | $21.3M | 1.52% | 287,265 | SH |
| 22 | BRASKEM SA | BAK | 105532105 | $19.6M | 1.40% | 8,030,124 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $1.40B | 22 | 0000919574-26-005164 |
| 2026-03-31 | 2026-05-14 | $1.64B | 25 | 0000919574-26-003018 |
| 2025-12-31 | 2026-02-17 | $1.35B | 22 | 0000919574-26-001009 |
| 2025-09-30 | 2025-11-14 | $1.15B | 21 | 0000919574-25-006786 |
5TH FLOOR
NEW YORK, NY 10106