Route One Investment Company, L.P. Long-Term Concentrated

Name: Route One Investment Company, L.P. Q1 2026 13F Filing | 13F Explorer
Creator: Route One Investment Company, L.P.
Published: 2026-05-15

Location: San Francisco, CA

CIK: 0001512171 · Show all filings

Period: Q1 2026 (← Previous)

Filing Date: May 15, 2026

Total Value: $2.349B (100.0% shares, 0.0% debt)

Holdings (19)

New Positions (4)

MELI MERCADOLIBRE INC 3.3%

Value $77.43M Shares 44,785 Est. Cost $2066.46 Unrealized 0.0%

SPY SPDR S&P 500 ETF TR 2.8%

Value $65.03M Shares 100,000 Est. Cost — Unrealized —

GGAL GRUPO FINANCIERO GALICIA S.A 1.2%

Value $27.06M Shares 579,350 Est. Cost $46.71 Unrealized —

BMA BANCO MACRO SA 1.1%

Value $25.7M Shares 332,111 Est. Cost $77.37 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
MELI	MERCADOLIBRE INC	44,785	$77.43M	3.3%	$2066.46	0.0%	COM	58733R102
SPY	SPDR S&P 500 ETF TR	100,000	$65.03M	2.8%	—	—	PUT	78462F103
GGAL	GRUPO FINANCIERO GALICIA S.A	579,350	$27.06M	1.2%	$46.71	—	SPONSORED ADR	399909100
BMA	BANCO MACRO SA	332,111	$25.7M	1.1%	$77.37	—	SPON ADR B	05961W105

Increased Positions (6)

GWRE GUIDEWIRE SOFTWARE INC 11.8%

Value $277M (-17.6%) Shares 1,849,364 (+10.7%) Est. Cost $106.01 Unrealized +41.7%

VIST VISTA ENERGY S.A.B. DE C.V. 3.9%

Value $91.82M (+84.2%) Shares 1,216,700 (+18.8%) Est. Cost $52.90 Unrealized —

UNH UNITEDHEALTH GROUP INC 6.1%

Value $144M (-13.9%) Shares 532,875 (+5.0%) Est. Cost $346.57 Unrealized -10.9%

TBBB BBB FOODS INC 2.3%

Value $54.09M (+16.9%) Shares 1,529,296 (+10.4%) Est. Cost $30.24 Unrealized +17.7%

KRC KILROY RLTY CORP 4.9%

Value $114M (+4.1%) Shares 4,049,563 (+38.0%) Est. Cost $36.04 Unrealized —

VEEV VEEVA SYS INC 1.4%

Value $32.01M (-7.6%) Shares 182,200 (+17.5%) Est. Cost $241.44 Unrealized -15.5%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
GWRE	GUIDEWIRE SOFTWARE INC	1,849,364 (+10.7%)	$277M (-17.6%)	11.8%	$106.01	+41.7%	COM	40171V100
VIST	VISTA ENERGY S.A.B. DE C.V.	1,216,700 (+18.8%)	$91.82M (+84.2%)	3.9%	$52.90	—	SPONSORED ADS	92837L109
UNH	UNITEDHEALTH GROUP INC	532,875 (+5.0%)	$144M (-13.9%)	6.1%	$346.57	-10.9%	COM	91324P102
TBBB	BBB FOODS INC	1,529,296 (+10.4%)	$54.09M (+16.9%)	2.3%	$30.24	+17.7%	CL A COM	G0896C103
KRC	KILROY RLTY CORP	4,049,563 (+38.0%)	$114M (+4.1%)	4.9%	$36.04	—	COM	49427F108
VEEV	VEEVA SYS INC	182,200 (+17.5%)	$32.01M (-7.6%)	1.4%	$241.44	-15.5%	CL A COM	922475108

Exited Positions (1)

IWM ISHARES TR 12.6%

Value $295M Shares 1,200,000 Est. Cost — Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
IWM	ISHARES TR	1,200,000	$295M	12.6%	—	—	PUT	464287655

Decreased Positions (6)

ESS ESSEX PPTY TR INC 3.1%

Value $72.09M (-48.3%) Shares 297,912 (-44.1%) Est. Cost $256.27 Unrealized +0.2%

AMZN AMAZON COM INC 9.2%

Value $215M (-18.2%) Shares 1,032,200 (-9.3%) Est. Cost $96.61 Unrealized +134.8%

TMO THERMO FISHER SCIENTIFIC INC 5.4%

Value $127M (-16.7%) Shares 258,700 (-1.9%) Est. Cost $496.28 Unrealized +15.8%

SCHW SCHWAB CHARLES CORP 6.7%

Value $158M (-13.9%) Shares 1,682,243 (-8.5%) Est. Cost $56.19 Unrealized +78.2%

POST POST HLDGS INC 12.4%

Value $292M (-6.1%) Shares 2,950,568 (-5.9%) Est. Cost $46.80 Unrealized +119.7%

NYT NEW YORK TIMES CO 8.8%

Value $206M (-4.5%) Shares 2,458,659 (-20.8%) Est. Cost $38.69 Unrealized +86.8%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
ESS	ESSEX PPTY TR INC	297,912 (-44.1%)	$72.09M (-48.3%)	3.1%	$256.27	+0.2%	COM	297178105
AMZN	AMAZON COM INC	1,032,200 (-9.3%)	$215M (-18.2%)	9.2%	$96.61	+134.8%	COM	023135106
TMO	THERMO FISHER SCIENTIFIC INC	258,700 (-1.9%)	$127M (-16.7%)	5.4%	$496.28	+15.8%	COM	883556102
SCHW	SCHWAB CHARLES CORP	1,682,243 (-8.5%)	$158M (-13.9%)	6.7%	$56.19	+78.2%	COM	808513105
POST	POST HLDGS INC	2,950,568 (-5.9%)	$292M (-6.1%)	12.4%	$46.80	+119.7%	COM	737446104
NYT	NEW YORK TIMES CO	2,458,659 (-20.8%)	$206M (-4.5%)	8.8%	$38.69	+86.8%	CL A	650111107

Unchanged Positions (3)

GOOG ALPHABET INC 8.4%

Value $198M Shares 689,080 Est. Cost $109.62 Unrealized +195.3%

HLF HERBALIFE LTD 5.2%

Value $121M Shares 8,227,300 Est. Cost $24.76 Unrealized -32.7%

PCOR PROCORE TECHNOLOGIES INC 2.2%

Value $52.34M Shares 918,205 Est. Cost $66.97 Unrealized -10.0%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
GOOG	ALPHABET INC	689,080	$198M	8.4%	$109.62	+195.3%	CAP STK CL C	02079K107
HLF	HERBALIFE LTD	8,227,300	$121M	5.2%	$24.76	-32.7%	COM SHS	G4412G101
PCOR	PROCORE TECHNOLOGIES INC	918,205	$52.34M	2.2%	$66.97	-10.0%	COM	74275K108