Senator Investment Group LP
In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 12, 2026), Senator Investment Group LP reported 58 stock positions worth $2.7 billion. Its top holding was DPC (DPC) at 9.0% of the portfolio, followed by SS SPDR S&P 500 ETF Trust-US (SPY, 6.7%) and Invesco QQQ Trust Series 1 (QQQ, 5.7%). Compared with Q1 2026, it opened 19 new positions, sold out of 20, added to 11 and reduced 22. The biggest buy was a new position in DPC (DPC) and the biggest sale an exit from Microsoft (MSFT).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001443689
- Portfolio Value
- $2.7B (Q2 2026)
- SEC Filing
- 0001443689-26-000009 ↗ filed Aug 12, 2026
Holdings Value
Holdings 58 stocks · $2.7B
| DPC DPC Holdings PLC | 8.99% | 5,022,738 | $246.4M | New |
| SPY SS SPDR S&P 500 ETF Trust-US | 6.70% | 246,000 | $183.7M | Add +8100.0% |
| QQQ Invesco QQQ Trust Series 1 | 5.74% | 213,500 | $157.2M | New |
| UAL United Airlines Holdings Inc. | 5.34% | 1,075,439 | $146.2M | Reduce -24.8% |
| BA The Boeing Co. | 5.11% | 646,458 | $139.9M | Add +46.6% |
| V Visa Inc. Class A | 3.95% | 315,788 | $108.3M | Add +23.8% |
| TSM Taiwan Semiconductor-SP ADR | 3.67% | 210,658 | $100.6M | Reduce -19.8% |
| AMZN Amazon.com Inc. | 3.65% | 420,000 | $100.1M | Reduce -31.1% |
| WWD Woodward Inc. | 3.47% | 223,591 | $95.1M | Reduce -1.3% |
| UNH Unitedhealth Group Inc. | 2.83% | 186,677 | $77.6M | Add +433.4% |
| AKAM Akamai Technologies Inc. | 2.76% | 640,000 | $75.7M | New |
| CVNA Carvana Co. | 2.73% | 1,137,870 | $74.9M | Add +23.3% |
| NVDA Nvidia Corp. | 2.46% | 336,579 | $67.3M | Reduce -59.2% |
| FLEX Flex Ltd. | 2.45% | 413,438 | $67.0M | New |
| DHR Danaher Corp. | 2.37% | 340,881 | $64.9M | Reduce -21.3% |
| PRM Perimeter Solutions Inc. | 2.34% | 1,795,000 | $64.0M | Reduce -24.3% |
| AVGO Broadcom Inc. | 2.24% | 162,136 | $61.2M | Reduce -13.6% |
| COP Conocophillips | 2.04% | 538,290 | $56.0M | Add +145.8% |
| META Meta Platforms Inc. Class A | 1.88% | 91,574 | $51.6M | Reduce -31.4% |
| AS Amer Sports Inc. | 1.85% | 1,500,000 | $50.8M | Add +15.3% |
| TMO Thermo Fisher Scientific Inc. | 1.83% | 100,000 | $50.1M | New |
| SN Sharkninja Inc. | 1.75% | 314,011 | $47.8M | Reduce -43.3% |
| AMAT Applied Materials Inc. | 1.72% | 65,000 | $47.0M | No change |
| COF Capital One Financial Corp. | 1.71% | 233,129 | $46.8M | New |
| BKD Brookdale Senior Living Inc. | 1.68% | 2,859,263 | $46.0M | Add +16.3% |
| DKS Dick's Sporting Goods Inc. | 1.66% | 200,000 | $45.4M | New |
| NU Nu Holdings Ltd./Cayman Isl-A filed as NU HLDGS LTD | 1.57% | 3,225,000 | $43.1M | Add +31.6% |
| TECK Teck Resources Ltd.-CLS B | 1.53% | 705,673 | $42.0M | Reduce -8.2% |
| PRMB Primo Brands Corp. | 1.43% | 1,607,935 | $39.3M | New |
| ESI Element Solutions Inc. | 1.26% | 725,000 | $34.6M | New |
| CSTM Constellium SE | 1.26% | 1,083,489 | $34.5M | New |
| MKSI MKS Inc. | 1.06% | 65,000 | $28.9M | New |
| TH Target Hospitality Corp. | 1.04% | 1,399,345 | $28.5M | New |
| CLF Cleveland-Cliffs Inc. | 0.94% | 2,741,569 | $25.7M | New |
| ULS Ul Solutions Inc. Class A | 0.93% | 250,000 | $25.5M | Reduce -37.5% |
| VRT Vertiv Holdings Co. Class A | 0.84% | 68,746 | $23.0M | Reduce -73.6% |
| VSAT Viasat Inc. | 0.59% | 180,000 | $16.2M | New |
| ATI Ati Inc. | 0.58% | 80,000 | $15.8M | Reduce -44.8% |
| ALKS Alkermes PLC | 0.53% | 275,000 | $14.4M | Add +17.0% |
| BSX Boston Scientific Corp. | 0.47% | 300,000 | $12.8M | New |
| OPTU Optimum Communications Inc. Class A | 0.42% | 8,000,000 | $11.6M | Add +60.0% |
| SRRK Scholar Rock Holding Corp. | 0.41% | 205,000 | $11.3M | New |
| GLD SPDR Gold Shares | 0.40% | 30,000 | $11.1M | No change |
| NTRA Natera Inc. | 0.32% | 32,500 | $8.8M | New |
| ABVX Abivax SA-ADR | 0.27% | 55,000 | $7.3M | New |
| GGR Gogoro Inc. | 0.20% | 1,350,000 | $5.4M | No change |
| AZUL Azul SA-Spon ADR | 0.17% | 505,584 | $4.5M | New |
| KNTK Kinetik Holdings Inc. | 0.13% | 75,500 | $3.6M | No change |
| GOOG Alphabet Inc. Class C | 0.13% | 10,000 | $3.5M | Reduce -20.0% |
| WULF Terawulf Inc. | 0.13% | 139,071 | $3.4M | No change |
| VST Vistra Corp. | 0.10% | 16,763 | $2.7M | Reduce -91.5% |
| GLXY Galaxy Digital Inc. Class A | 0.10% | 96,491 | $2.6M | Reduce -32.8% |
| MT Arcelormittal-NY Registered | 0.09% | 41,258 | $2.5M | Reduce -87.9% |
| BCS Barclays PLC-Spons ADR | 0.07% | 67,232 | $1.8M | No change |
| WRBY Warby Parker Inc. Class A | 0.06% | 50,000 | $1.5M | Reduce -90.0% |
| RIOT Riot Platforms Inc. | 0.05% | 48,501 | $1.3M | Reduce -96.8% |
| ATRO Astronics Corp. | 0.02% | 6,702 | $545K | Reduce -68.9% |
| WBD Warner Bros Discovery Inc. | 0.02% | 20,061 | $535K | Reduce -99.3% |
Portfolio Sells Q1 2026 → Q2 2026
| MSFT Microsoft Corp. | Sold out | 0.00% | −4.55 |
| NVDA Nvidia Corp. | Reduce -59.2% | 2.46% | −4.15 |
| WBD Warner Bros Discovery Inc. | Reduce -99.3% | 0.02% | −3.82 |
| AMZN Amazon.com Inc. | Reduce -31.1% | 3.65% | −2.18 |
| VRT Vertiv Holdings Co. Class A | Reduce -73.6% | 0.84% | −2.15 |
| VIK Viking Holdings Ltd. | Sold out | 0.00% | −1.76 |
| APO Apollo Global Management Inc. | Sold out | 0.00% | −1.74 |
| C Citigroup Inc. | Sold out | 0.00% | −1.72 |
| META Meta Platforms Inc. Class A | Reduce -31.4% | 1.88% | −1.63 |
| PFE Pfizer Inc. | Sold out | 0.00% | −1.61 |
| HAL Halliburton Co. | Sold out | 0.00% | −1.52 |
| EEM iShares MSCI Emerging Market | Sold out | 0.00% | −1.49 |
| AEIS Advanced Energy Industries | Sold out | 0.00% | −1.48 |
| LHX L3HARRIS Technologies Inc. | Sold out | 0.00% | −1.43 |
| DHR Danaher Corp. | Reduce -21.3% | 2.37% | −1.40 |
| VST Vistra Corp. | Reduce -91.5% | 0.10% | −1.26 |
| APH Amphenol Corp. Class A | Sold out | 0.00% | −1.16 |
| JHX James Hardie Ind PLC | Sold out | 0.00% | −0.96 |
| SN Sharkninja Inc. | Reduce -43.3% | 1.75% | −0.95 |
| RKT Rocket Cos Inc. Class A | Sold out | 0.00% | −0.82 |
| RIOT Riot Platforms Inc. | Reduce -96.8% | 0.05% | −0.80 |
| HAS Hasbro Inc. | Sold out | 0.00% | −0.75 |
| MT Arcelormittal-NY Registered | Reduce -87.9% | 0.09% | −0.72 |
| UAL United Airlines Holdings Inc. | Reduce -24.8% | 5.34% | −0.71 |
| ULS Ul Solutions Inc. Class A | Reduce -37.5% | 0.93% | −0.64 |
| CVS CVS Health Corp. | Sold out | 0.00% | −0.58 |
| ECHO Echostar Corp. Class A | Sold out | 0.00% | −0.55 |
| HOOD Robinhood Markets Inc. Class A | Sold out | 0.00% | −0.45 |
| HWM Howmet Aerospace Inc. | Sold out | 0.00% | −0.44 |
| AVGO Broadcom Inc. | Reduce -13.6% | 2.24% | −0.43 |
| WRBY Warby Parker Inc. Class A | Reduce -90.0% | 0.06% | −0.43 |
| TSM Taiwan Semiconductor-SP ADR | Reduce -19.8% | 3.67% | −0.40 |
| ATI Ati Inc. | Reduce -44.8% | 0.58% | −0.39 |
| PRM Perimeter Solutions Inc. | Reduce -24.3% | 2.34% | −0.32 |
| TECK Teck Resources Ltd.-CLS B | Reduce -8.2% | 1.53% | −0.30 |
| WWD Woodward Inc. | Reduce -1.3% | 3.47% | −0.25 |
| ETHA iShares Ethereum Trust ETF | Sold out | 0.00% | −0.18 |
| H Hyatt Hotels Corp. Class A | Sold out | 0.00% | −0.07 |
| CELH Celsius Holdings Inc. | Sold out | 0.00% | −0.06 |
| ATRO Astronics Corp. | Reduce -68.9% | 0.02% | −0.05 |
| GOOG Alphabet Inc. Class C | Reduce -20.0% | 0.13% | −0.04 |
| GLXY Galaxy Digital Inc. Class A | Reduce -32.8% | 0.10% | −0.03 |
Portfolio Buys Q1 2026 → Q2 2026
| DPC DPC Holdings PLC | New | 8.99% | +8.99 |
| SPY SS SPDR S&P 500 ETF Trust-US | Add +8100.0% | 6.70% | +6.61 |
| QQQ Invesco QQQ Trust Series 1 | New | 5.74% | +5.74 |
| AKAM Akamai Technologies Inc. | New | 2.76% | +2.76 |
| FLEX Flex Ltd. | New | 2.45% | +2.45 |
| UNH Unitedhealth Group Inc. | Add +433.4% | 2.83% | +2.40 |
| TMO Thermo Fisher Scientific Inc. | New | 1.83% | +1.83 |
| COF Capital One Financial Corp. | New | 1.71% | +1.71 |
| DKS Dick's Sporting Goods Inc. | New | 1.66% | +1.66 |
| PRMB Primo Brands Corp. | New | 1.43% | +1.43 |
| ESI Element Solutions Inc. | New | 1.26% | +1.26 |
| CSTM Constellium SE | New | 1.26% | +1.26 |
| BA The Boeing Co. | Add +46.6% | 5.11% | +1.08 |
| MKSI MKS Inc. | New | 1.06% | +1.06 |
| TH Target Hospitality Corp. | New | 1.04% | +1.04 |
| CLF Cleveland-Cliffs Inc. | New | 0.94% | +0.94 |
| COP Conocophillips | Add +145.8% | 2.04% | +0.72 |
| VSAT Viasat Inc. | New | 0.59% | +0.59 |
| BSX Boston Scientific Corp. | New | 0.47% | +0.47 |
| V Visa Inc. Class A | Add +23.8% | 3.95% | +0.41 |
| SRRK Scholar Rock Holding Corp. | New | 0.41% | +0.41 |
| NTRA Natera Inc. | New | 0.32% | +0.32 |
| ABVX Abivax SA-ADR | New | 0.27% | +0.27 |
| AZUL Azul SA-Spon ADR | New | 0.17% | +0.17 |
| ALKS Alkermes PLC | Add +17.0% | 0.53% | +0.14 |
| BKD Brookdale Senior Living Inc. | Add +16.3% | 1.68% | +0.13 |
| OPTU Optimum Communications Inc. Class A | Add +60.0% | 0.42% | +0.12 |
| CVNA Carvana Co. | Add +23.3% | 2.73% | +0.07 |
| NU Nu Holdings Ltd./Cayman Isl-A | Add +31.6% | 1.57% | −0.04 |
| AS Amer Sports Inc. | Add +15.3% | 1.85% | −0.11 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 58 | $2.7B | DPC, SPY, QQQ, UAL, BA |
| Q1 2026 | 59 | $2.2B | NVDA, UAL, AMZN, MSFT, TSM |
| Q4 2025 | 59 | $2.5B | UAL, WWD, COF, CVNA, AMZN |
| Q3 2025 | 60 | $2.7B | UAL, WWD, IBIT, CVNA, AMZN |
| Q2 2025 | 54 | $2.6B | UAL, IBIT, HOOD, COF, MSFT |
| Q1 2025 | 51 | $1.9B | UAL, CVNA, SSNC, PRMB, MSFT |
| Q4 2024 | 68 | $3.4B | QQQ, UAL, APD, SSNC, AMZN |
| Q3 2024 | 62 | $2.1B | AMZN, VZ, ICE, APO, CVNA |
| Q2 2024 | 70 | $2.1B | AMZN, ICE, AIG, APO, META |
| Q1 2024 | 65 | $2.2B | AMZN, META, AIG, VRT, ICE |