Senator Investment Group LP reported 52 positions worth $2.38B for the quarter ended Jun 30, 2026, up 16.0% on the prior quarter. It opened 17 new positions, added to 9, trimmed 21 and exited 19. Its largest holding is DPC Holdings PLC at 10.4% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| DPC DPC Holdings PLC | +5.02M | – | $246.42M | 10.37% |
| AKAM Akamai Technologies Inc | +640.0K | – | $75.65M | 3.18% |
| FLEX Flex Ltd. | +413.4K | – | $67.01M | 2.82% |
| UNH Unitedhealth Group Inc | +151.7K | +433.4% | $63.04M | 3.26% |
| TMO Thermo Fisher Scientific Inc. | +100.0K | – | $50.14M | 2.11% |
| COF Capital One Financial Corp | +233.1K | – | $46.77M | 1.97% |
| DKS Dick'S Sporting Goods, Inc. | +200.0K | – | $45.36M | 1.91% |
| BA Boeing Co | +205.5K | +46.6% | $44.48M | 5.89% |
| PRMB Primo Brands Corp | +1.61M | – | $39.30M | 1.65% |
| ESI Element Solutions Inc | +725.0K | – | $34.62M | 1.46% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MSFT Microsoft Corp | -267.5K | -100.0% | $99.02M | Exited |
| NVDA Nvidia Corp | -488.1K | -59.2% | $97.66M | 2.83% |
| VRT Vertiv Holdings Co | -191.3K | -73.6% | $64.04M | 0.968% |
| UAL United Airlines Holdings, Inc. | -354.2K | -24.8% | $48.17M | 6.15% |
| AMZN Amazon Com Inc | -190.0K | -31.1% | $45.28M | 4.21% |
| RIOT Riot Platforms, Inc. | -1.45M | -96.8% | $39.74M | 0.056% |
| VIK Viking Holdings Ltd | -523.0K | -100.0% | $38.43M | Exited |
| APO Apollo Global Management, Inc. | -340.0K | -100.0% | $37.88M | Exited |
| C Citigroup Inc | -330.0K | -100.0% | $37.42M | Exited |
| SN SharkNinja, Inc. | -240.0K | -43.3% | $36.54M | 2.01% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| DPC DPC Holdings PLC | +5.02M | $246.42M | 10.37% |
| AKAM Akamai Technologies Inc | +640.0K | $75.65M | 3.18% |
| FLEX Flex Ltd. | +413.4K | $67.01M | 2.82% |
| TMO Thermo Fisher Scientific Inc. | +100.0K | $50.14M | 2.11% |
| COF Capital One Financial Corp | +233.1K | $46.77M | 1.97% |
| DKS Dick'S Sporting Goods, Inc. | +200.0K | $45.36M | 1.91% |
| PRMB Primo Brands Corp | +1.61M | $39.30M | 1.65% |
| ESI Element Solutions Inc | +725.0K | $34.62M | 1.46% |
| CSTM Constellium Se | +1.08M | $34.53M | 1.45% |
| MKSI Mks Inc | +65.0K | $28.91M | 1.22% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| MSFT Microsoft Corp | -267.5K | $99.02M | 4.83% |
| VIK Viking Holdings Ltd | -523.0K | $38.43M | 1.88% |
| APO Apollo Global Management, Inc. | -340.0K | $37.88M | 1.85% |
| C Citigroup Inc | -330.0K | $37.42M | 1.83% |
| PFE Pfizer Inc | -1.25M | $35.10M | 1.71% |
| HAL Halliburton Co | -846.7K | $33.01M | 1.61% |
| AEIS Advanced Energy Industries Inc | -100.0K | $32.27M | 1.58% |
| LHX L3Harris Technologies, Inc. | -90.0K | $31.06M | 1.52% |
| APH Amphenol Corp | -400.0K | $25.27M | 1.23% |
| JHX James Hardie Industries plc | -1.11M | $20.96M | 1.02% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | DPC DPC Holdings PLC | Industrials | 5.02M | $246.42M | 10.37% | +5.02M | – | New | 3.36% |
| 2 | UAL United Airlines Holdings, Inc. | Industrials | 1.08M | $146.25M | 6.15% | -354.2K | -24.8% | Reduced | 0.33% |
| 3 | BA Boeing Co | Industrials | 646.5K | $139.94M | 5.89% | +205.5K | +46.6% | Added | 0.08% |
| 4 | V Visa Inc. | Financial Services | 315.8K | $108.34M | 4.56% | +60.8K | +23.8% | Added | 0.02% |
| 5 | TSM Taiwan Semiconductor Manufacturing Co Ltd | Technology | 210.7K | $100.60M | 4.23% | -51.8K | -19.7% | Reduced | 0% |
| 6 | AMZN Amazon Com Inc | Consumer Discretionary | 420.0K | $100.10M | 4.21% | -190.0K | -31.1% | Reduced | 0% |
| 7 | WWD Woodward, Inc. | Industrials | 223.6K | $95.12M | 4% | -2,947 | -1.3% | Reduced | 0.38% |
| 8 | UNH Unitedhealth Group Inc | Healthcare | 186.7K | $77.59M | 3.26% | +151.7K | +433.4% | Added | 0.02% |
| 9 | AKAM Akamai Technologies Inc | Technology | 640.0K | $75.65M | 3.18% | +640.0K | – | New | 0.44% |
| 10 | CVNA Carvana Co. | Consumer Discretionary | 1.14M | $74.89M | 3.15% | +215.0K | +23.3% | Added | 0.1% |
| 11 | NVDA Nvidia Corp | Technology | 336.6K | $67.35M | 2.83% | -488.1K | -59.2% | Reduced | 0% |
| 12 | FLEX Flex Ltd. | Technology | 413.4K | $67.01M | 2.82% | +413.4K | – | New | 0.11% |
| 13 | DHR Danaher Corp | Healthcare | 340.9K | $64.93M | 2.73% | -92.4K | -21.3% | Reduced | 0.05% |
| 14 | PRM Perimeter Solutions, Inc. | Industrials | 1.80M | $63.99M | 2.69% | -575.0K | -24.3% | Reduced | 1.1% |
| 15 | AVGO Broadcom Inc. | Technology | 162.1K | $61.25M | 2.58% | -25.5K | -13.6% | Reduced | 0% |
Tip. Select a row to see that position’s full history at Senator Investment.
As of its Q2 2026 13F filing, Senator Investment Group LP’s five largest positions were DPC Holdings PLC (DPC) at 10.4%, United Airlines Holdings, Inc. (UAL) at 6.2%, Boeing Co (BA) at 5.9%, Visa Inc. (V) at 4.6%, Taiwan Semiconductor Manufacturing Co Ltd (TSM) at 4.2% of the reported portfolio.
Senator Investment Group LP reported a 13F portfolio worth $2.38B across 52 positions for Q2 2026. That is up 16.0% from the previous quarter.
Its largest purchases by value were DPC Holdings PLC ($246.42M), Akamai Technologies Inc ($75.65M), Flex Ltd. ($67.01M). It opened 17 new positions.
Its largest sales by value were Microsoft Corp ($99.02M), Nvidia Corp ($97.66M), Vertiv Holdings Co ($64.04M). It exited 19 positions entirely.
From the Form 13F-HR reports Senator Investment Group LP files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.