Data as of Q4 2025 (Dec 31, 2025)

Route One Investment Company, L.P.

โ€ขCIK: 1512171โ€ขFiling: Q4 2025

**Route One Investment Company, L.P.** manages $2.7B across a concentrated portfolio of 16 positions. The fund exhibits significant exposure to technology and healthcare, highlighted by top holdings including GWRE at $335.8M and POST at $310.7M. Further notable allocations include substantial positions in IWM ($295.4M), AMZN ($262.7M), and GOOG ($216.2M). This structure suggests a conviction-driven, large-cap growth mandate.

Total AUM
$2.4B
+ $295.4M in options
QoQ Performance
-2.2%
Positions
15
+ 1 option
Top 10 Concentration
84.7%
Latest Filing
Q4 2025

Top Holdings Allocation

GWRE
POST
IWM
AMZN
GOOG
NYT
SCHW
UNH
GWRE12.5%
POST11.5%
IWM11.0%
AMZN9.8%
GOOG8.0%
NYT8.0%
SCHW6.8%
UNH6.2%

๐Ÿ“ˆ Biggest Buys

IWMPUT
ISHARES TR
NEW
11.0% of portfolio
ESS
ESSEX PPTY TR INC
NEW
5.2% of portfolio
VIST
VISTA ENERGY S.A.B. DE C.V.
NEW
1.9% of portfolio
โ€”
BBB FOODS INC
+1673.2%
1.7% of portfolio
KRC
KILROY RLTY CORP
+12.1%
4.1% of portfolio

๐Ÿ“‰ Biggest Sells

NYT
NEW YORK TIMES CO
-16.1%
8.0% of portfolio
SCHW
SCHWAB CHARLES CORP
-18.1%
6.8% of portfolio
AMZN
AMAZON COM INC
-10.9%
9.8% of portfolio
GWRE
GUIDEWIRE SOFTWARE INC
-8.1%
12.5% of portfolio
POST
POST HLDGS INC
-8.6%
11.5% of portfolio

Sector Breakdown

Other63.5%
Healthcare11.9%
Consumer9.8%
Technology8.0%
Financial6.8%

๐Ÿšช Exited Positionssold since Q3 2025

BRBR
BELLRING BRANDS INC
SOLD
$83.7M
CRM
SALESFORCE INC
SOLD
$80.3M
GOOGL
ALPHABET INC
SOLD
$4.9M

Changes from Q3 2025

NEW3 new positions
โ†‘3 increased
โ†“7 decreased

Historical Filings

Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023