In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 14, 2026), 140 Summer Partners LP reported 20 stock positions worth $1.1 billion . Its top holding was Mastec (MTZ) at 9.4% of the portfolio, followed by P G & E (PCG, 7.7% ) and Viking (VIK, 7.5% ). Compared with Q4 2025, it opened 7 new positions, sold out of 6, added to 7 and reduced 5. The biggest buy was a new position in P G & E (PCG) and the biggest sale an exit from Pennymac Financial Services (PFSI).
Location New York, NY
CIK 0001820788
Portfolio Value $1.1B (Q1 2026) Holdings 20 stocks · $1.1B Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q4 2025 MTZ Mastec Inc. 329,220 $105.9M Reduce -12.0% PCG P G & E Corp. 4,932,763 $86.7M New VIK Viking Holdings Ltd. 1,149,541 $84.5M Add +22.0% GLPI Gaming and Leisure Propertie 1,863,923 $82.7M Add +2.5% TMUS T-Mobile US Inc. 386,718 $81.2M Add +1.6% KGS Kodiak Gas Services Inc. 1,295,922 $75.6M New VST Vistra Corp. 482,734 $72.6M Add +39.7% COF Capital One Financial Corp. 392,322 $71.6M Reduce -35.8% AER Aercap Holdings NV 508,566 $69.8M Reduce -10.5% ECHO Echostar Corp. Class A 530,434 $62.1M Reduce -42.2% TDS Telephone and Data Systems 1,336,731 $56.3M Add +1.6% SGI Somnigroup International Inc. 716,856 $53.0M Add +9.3% HBAN Huntington Bancshares Inc. 3,294,317 $51.6M New VSAT Viasat Inc. 907,970 $41.6M New JBTM JBT Marel Corp. 315,202 $40.3M Add +4.2% BKD Brookdale Senior Living Inc. 2,869,000 $39.2M New BOH Bank of Hawaii Corp. filed as BANK HAWAII CORP 402,465 $29.9M New AERO Grupo Aeromexico Sab DE CV 1,298,388 $18.2M No change BTDR Bitdeer Technologies Group-A 769,545 $6.7M New OPTU Optimum Communications Inc. Class A 2,485,717 $3.2M Reduce -19.7%
Options reported separately and not counted above: IWM puts ($273.8M), UAL calls ($125.4M), GSAT puts ($60.9M), AER puts ($34.3M), UWMC calls ($9.3M).
Portfolio Sells Q4 2025 → Q1 2026 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2025 % Of Portfolio Change To Portfolio ▲ PFSI Pennymac Financial Services Sold out 0.00% −6.90 WBS Webster Financial Corp. Sold out 0.00% −6.69 AYI Acuity Inc. Sold out 0.00% −6.35 CRH CRH PLC Sold out 0.00% −5.40 COF Capital One Financial Corp. Reduce -35.8% 6.32% −5.25 PNR Pentair PLC Sold out 0.00% −4.94 ECHO Echostar Corp. Class A Reduce -42.2% 5.48% −2.30 CCO Clear Channel Outdoor Holdin Sold out 0.00% −0.69 AER Aercap Holdings NV Reduce -10.5% 6.16% −0.22 OPTU Optimum Communications Inc. Class A Reduce -19.7% 0.29% −0.11 MTZ Mastec Inc. Reduce -12.0% 9.35% +3.00
Portfolio Buys Q4 2025 → Q1 2026 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2025 % Of Portfolio Change To Portfolio ▼ PCG P G & E Corp. New 7.65% +7.65 KGS Kodiak Gas Services Inc. New 6.67% +6.67 HBAN Huntington Bancshares Inc. New 4.55% +4.55 VSAT Viasat Inc. New 3.67% +3.67 BKD Brookdale Senior Living Inc. New 3.47% +3.47 BOH Bank of Hawaii Corp. New 2.64% +2.64 VIK Viking Holdings Ltd. Add +22.0% 7.46% +2.20 VST Vistra Corp. Add +39.7% 6.41% +2.05 TMUS T-Mobile US Inc. Add +1.6% 7.17% +1.14 GLPI Gaming and Leisure Propertie Add +2.5% 7.30% +0.96 TDS Telephone and Data Systems Add +1.6% 4.97% +0.76 BTDR Bitdeer Technologies Group-A New 0.59% +0.59 SGI Somnigroup International Inc. Add +9.3% 4.68% +0.11 JBTM JBT Marel Corp. Add +4.2% 3.56% +0.00
Options Activity Q4 2025 → Q1 2026 Security Type Change vs Q4 2025 Underlying Shares Value ▼ IWM iShares Russell 2000 ETF put New 1,104,000 $273.8M UAL United Airlines Holdings Inc. call New 1,362,500 $125.4M AER Aercap Holdings NV put New 250,000 $34.3M CRH CRH PLC put Sold out 90,000 $11.2Mbefore exit UWMC Uwm Holdings Corp. call New 2,570,000 $9.3M HE Hawaiian Electric Inds put Sold out 434,100 $5.3Mbefore exit
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 20 $1.2B VSAT, MTZ, KGS, GLPI, SGI Q1 2026 20 $1.1B MTZ, PCG, VIK, GLPI, TMUS Q4 2025 19 $1.3B COF, ECHO, PFSI, WBS, AER Q3 2025 19 $1.1B COF, MTZ, CRH, AER, WBS Q2 2025 13 $772.8M COF, AER, COOP, PGR, VST Q1 2025 14 $740.5M PGR, AER, UNH, TMUS, VST Q4 2024 15 $765.8M PGR, AER, TMUS, COF, COOP Q3 2024 15 $753.8M AER, PGR, WAL, TMUS, CZR Q2 2024 13 $726.0M PGR, AER, CZR, WAL, TMUS Q1 2024 13 $711.8M AER, PGR, WAL, CZR, TMUS