Route One Investment Company, L.P. Portfolio Stock Holdings

Route One Investment Company, L.P. disclosed 18 stock positions valued at approximately $2.3 billion in its latest SEC 13F filing. The largest holdings include POST HLDGS INC, GUIDEWIRE SOFTWARE INC, and AMAZON COM INC. The filing reflects positions held as of March 31, 2026 and was filed on May 15, 2026.

Report Period
March 31, 2026
No. of Stocks
18
Portfolio Value
$2.3B
Holdings by Sector
Route One Investment Company, L.P. Portfolio Holdings in Q1 2026

17 holdings in the latest reporting period.

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CompanySymbolSectorPortfolio %SharesChange (Shares)Change %Value
POST HLDGS INCPOSTConsumer Defensive12.77%2,950,568-185,900-5.93%$291,693,152
GUIDEWIRE SOFTWARE INCGWRETechnology12.11%1,849,364+178,950+10.71%$276,590,880
AMAZON COM INCAMZNConsumer Cyclical9.41%1,032,200-105,800-9.30%$214,976,294
NEW YORK TIMES CONYTCommunication Services9.01%2,458,659-646,650-20.82%$205,863,518
ALPHABET INCGOOGCommunication Services8.65%689,080--$197,669,489
SCHWAB CHARLES CORPSCHWFinancial Services6.92%1,682,243-156,100-8.49%$158,097,197
UNITEDHEALTH GROUP INCUNHHealthcare6.31%532,875+25,575+5.04%$144,190,646
THERMO FISHER SCIENTIFIC INCTMOHealthcare5.57%258,700-4,900-1.86%$127,158,811
HERBALIFE LTDG4412G101Other5.30%8,227,300+65,177+0.80%$121,105,856
KILROY RLTY CORPKRCReal Estate5.00%4,049,563+1,114,191+37.96%$114,238,172
VISTA ENERGY S.A.B. DE C.V.VISTEnergy4.02%1,216,700+192,500+18.80%$91,824,349
MERCADOLIBRE INCMELIConsumer Cyclical3.39%44,785+44,785+100.00%$77,434,161
ESSEX PPTY TR INCESSReal Estate3.16%297,912-235,065-44.10%$72,094,704
PROCORE TECHNOLOGIES INCPCORTechnology2.29%918,205--$52,337,685
VEEVA SYS INCVEEVHealthcare1.40%182,200+27,100+17.47%$32,005,252
GRUPO FINANCIERO GALICIA S.AGGALFinancial Services1.18%579,350+579,350+100.00%$27,061,439
BANCO MACRO SABMAFinancial Services1.12%332,111+332,111+100.00%$25,695,428
Route One Investment Company, L.P. Options Holdings in Q1 2026

1 options positions in the latest reporting period.

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QuarterSymbolCompanyOptionContractsNotional Value
Q1 2026SPYSPDR S&P 500PUT100,000$65,034,000

Notional value represents the total exposure of the options position.