Route One Investment Company, L.P.
In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 14, 2026), Route One Investment Company, L.P. reported 19 stock positions worth $2.4 billion. Its top holding was Post (POST) at 10.8% of the portfolio, followed by Amazon.com (AMZN, 10.2%) and Guidewire Software (GWRE, 9.4%). Compared with Q1 2026, it opened 2 new positions, sold out of 1, added to 7 and reduced 2. The biggest buy was Kilroy Realty (KRC, shares +5%) and the biggest sale an exit from Essex Property Trust (ESS).
- Most Recent 13F
- Q2 2026
- Location
- San Francisco, CA
- CIK
- 0001512171
- Portfolio Value
- $2.4B (Q2 2026)
- SEC Filing
- 0000935836-26-000421 ↗ filed Aug 14, 2026
Holdings Value
Holdings 19 stocks · $2.4B
| POST Post Holdings Inc. filed as POST HLDGS INC | 10.78% | 2,950,568 | $260.4M | No change |
| AMZN Amazon.com Inc. | 10.18% | 1,032,200 | $246.0M | No change |
| GWRE Guidewire Software Inc. | 9.42% | 1,849,364 | $227.6M | No change |
| GOOG Alphabet Inc. Class C | 8.54% | 584,050 | $206.4M | Reduce -15.2% |
| UNH Unitedhealth Group Inc. | 8.39% | 487,725 | $202.7M | Reduce -8.5% |
| SCHW Schwab (charles) Corp. | 8.36% | 2,189,893 | $202.1M | Add +30.2% |
| NYT New York Times Co. Class A | 7.12% | 2,458,659 | $172.1M | No change |
| KRC Kilroy Realty Corp. | 6.59% | 4,248,213 | $159.2M | Add +4.9% |
| TMO Thermo Fisher Scientific Inc. | 5.82% | 280,400 | $140.6M | Add +8.4% |
| MELI MercadoLibre Inc. | 4.61% | 65,560 | $111.3M | Add +46.4% |
| HLF Herbalife Ltd. | 4.54% | 8,348,800 | $109.8M | Add +1.5% |
| TBBB BBB Foods Inc. Class A | 3.84% | 2,224,201 | $92.7M | Add +45.4% |
| VIST Vista Energy Sab DE CV | 3.21% | 1,216,700 | $77.6M | No change |
| VEEV Veeva Systems Inc. Class A | 1.55% | 211,350 | $37.5M | Add +16.0% |
| PCOR Procore Technologies Inc. | 1.54% | 918,205 | $37.3M | No change |
| V Visa Inc. Class A | 1.52% | 106,700 | $36.6M | New |
| MA Mastercard Inc. Class A | 1.50% | 70,500 | $36.2M | New |
| BMA Banco Macro SA-ADR | 1.27% | 332,111 | $30.8M | No change |
| GGAL Grupo Financiero Galicia-ADR | 1.20% | 579,350 | $29.0M | No change |
Options reported separately and not counted above: SPY puts ($74.7M).
Portfolio Sells Q1 2026 → Q2 2026
Portfolio Buys Q1 2026 → Q2 2026
| KRC Kilroy Realty Corp. | Add +4.9% | 6.59% | +1.59 |
| V Visa Inc. Class A | New | 1.52% | +1.52 |
| MA Mastercard Inc. Class A | New | 1.50% | +1.50 |
| TBBB BBB Foods Inc. Class A | Add +45.4% | 3.84% | +1.47 |
| SCHW Schwab (charles) Corp. | Add +30.2% | 8.36% | +1.44 |
| MELI MercadoLibre Inc. | Add +46.4% | 4.61% | +1.22 |
| TMO Thermo Fisher Scientific Inc. | Add +8.4% | 5.82% | +0.25 |
| VEEV Veeva Systems Inc. Class A | Add +16.0% | 1.55% | +0.15 |
| HLF Herbalife Ltd. | Add +1.5% | 4.54% | −0.76 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 19 | $2.4B | POST, AMZN, GWRE, GOOG, UNH |
| Q1 2026 | 18 | $2.3B | POST, GWRE, AMZN, NYT, GOOG |
| Q4 2025 | 15 | $2.4B | GWRE, POST, AMZN, GOOG, NYT |
| Q3 2025 | 16 | $2.5B | GWRE, POST, AMZN, SCHW, NYT |
| Q2 2025 | 14 | $2.2B | GWRE, POST, AMZN, SCHW, NYT |
| Q1 2025 | 13 | $2.3B | POST, GWRE, SCHW, AMZN, UNH |
| Q4 2024 | 13 | $2.5B | POST, GWRE, AMZN, SCHW, UNH |
| Q3 2024 | 15 | $2.8B | GWRE, POST, AMZN, UNH, SCHW |
| Q2 2024 | 15 | $2.6B | POST, GWRE, AMZN, UNH, GOOG |
| Q1 2024 | 16 | $2.5B | POST, GWRE, AMZN, UNH, CRM |