Route One Investment Company, L.P. — 13F Holdings & Portfolio
CIK 1512171 · latest 13F-HR filed 2026-08-14
Route One Investment Company, L.P. manages $2.49B in 13F-reported U.S. long-equity assets across 20 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are POST (10.46%), AMZN (9.88%), GWRE (9.14%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 2 new positions, exited 1, added to 10, and trimmed 6.
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.
BLDG D, STE 200
SAN FRANCISCO, CA 94129
$2.49B
Long-equity book
20
Distinct positions
2026-06-30
Filed 2026-08-14
+2 / −1 / ↑10 / ↓6
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- UNITEDHEALTH GROUP INC$58.5M +40.6%
- KILROY RLTY CORP$44.9M +39.3%
- SCHWAB CHARLES CORP$44.0M +27.8%
- BBB FOODS INC$38.6M +71.3%
- MERCADOLIBRE INC$33.8M +43.7%
Top Trims
- GUIDEWIRE SOFTWARE INC-$49.0M -17.7%
- NEW YORK TIMES CO-$33.8M -16.4%
- POST HLDGS INC-$31.3M -10.7%
- PROCORE TECHNOLOGIES INC-$15.0M -28.7%
- VISTA ENERGY S.A.B. DE C.V.-$14.2M -15.5%
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 | POST HLDGS INC | POST | 737446104 | $260.4M | 10.46% | 2,950,568 | SH |
| 2 | AMAZON COM INC | AMZN | 023135106 | $246.0M | 9.88% | 1,032,200 | SH |
| 3 | GUIDEWIRE SOFTWARE INC | GWRE | 40171V100 | $227.6M | 9.14% | 1,849,364 | SH |
| 4 | ALPHABET INC | GOOG | 02079K107 | $206.4M | 8.29% | 584,050 | SH |
| 5 | UNITEDHEALTH GROUP INC | UNH | 91324P102 | $202.7M | 8.14% | 487,725 | SH |
| 6 | SCHWAB CHARLES CORP | SCHW | 808513105 | $202.1M | 8.11% | 2,189,893 | SH |
| 7 | NEW YORK TIMES CO | NYT | 650111107 | $172.1M | 6.91% | 2,458,659 | SH |
| 8 | KILROY RLTY CORP | KRC | 49427F108 | $159.2M | 6.39% | 4,248,213 | SH |
| 9 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $140.6M | 5.65% | 280,400 | SH |
| 10 | MERCADOLIBRE INC | MELI | 58733R102 | $111.3M | 4.47% | 65,560 | SH |
| 11 | HERBALIFE LTD | HLF | G4412G101 | $109.8M | 4.41% | 8,348,800 | SH |
| 12 | BBB FOODS INC | TBBB | G0896C103 | $92.7M | 3.72% | 2,224,201 | SH |
| 13 | VISTA ENERGY S.A.B. DE C.V. | VIST | 92837L109 | $77.6M | 3.12% | 1,216,700 | SH |
| 14 | SPDR S&P 500 ETF TR Put | SPY | 78462F103 | $74.7M | 3.00% | 100,000 | SH |
| 15 | VEEVA SYS INC | VEEV | 922475108 | $37.5M | 1.51% | 211,350 | SH |
| 16 | PROCORE TECHNOLOGIES INC | PCOR | 74275K108 | $37.3M | 1.50% | 918,205 | SH |
| 17 | VISA INC | V | 92826C839 | $36.6M | 1.47% | 106,700 | SH |
| 18 | MASTERCARD INCORPORATED | MA | 57636Q104 | $36.2M | 1.45% | 70,500 | SH |
| 19 | BANCO MACRO SA | BMA | 05961W105 | $30.8M | 1.23% | 332,111 | SH |
| 20 | GRUPO FINANCIERO GALICIA S.A | GGAL | 399909100 | $29.0M | 1.16% | 579,350 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $2.49B | 20 | 0000935836-26-000421 |
| 2026-03-31 | 2026-05-15 | $2.35B | 19 | 0000935836-26-000267 |
| 2025-12-31 | 2026-02-17 | $2.69B | 16 | 0000935836-26-000110 |
| 2025-09-30 | 2025-11-14 | $2.70B | 18 | 0000935836-25-000701 |