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TRB Advisors LP

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13F filer, CIK 1513300, NEW YORK, NY

TRB Advisors LP reported $496,325,825 across 11 holdings for the quarter ended 2025-09-30, in a 13F-HR/A filed 2025-10-31. Its ten largest share positions make up 99.62% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR/A 0001193125-25-260452

Period
2025-09-30
Reported value
$496M
Holdings
11
Top 10 weight
99.62%
New
3
Sold out
3

Largest buys vs the previous quarter

SecurityShares changeApprox. value
VOOadded+200,000$122M
QQQnew+30,000$18M
TOGAadded+175,000$6.23M
SPGInew+10,000$4.87M
CPNGnew+57,866$1.86M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
MSFTreduced-75,000-$38.8M
METAexited-40,000-$29.5M
AMZNexited-100,000-$21.9M
SPYexited-10,000-$5.27M
AAPLreduced-5,000-$1.27M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR/A 0001193125-25-260452, largest first. % of portfolio is the value over $496,325,825, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
VOOVANGUARD INDEX FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 700,000 shares; 2024Q4: 650,000 shares; 2025Q1: 50,000 shares; 2025Q2: 275,000 shares; 2025Q3: 475,000 shares 475,000$291M58.61%+200,000Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 170,000 shares; 2024Q4: 170,000 shares; 2025Q1: 170,000 shares; 2025Q2: 195,000 shares; 2025Q3: 120,000 shares 120,000$62.2M12.52%-75,000Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 310,000 shares; 2024Q4: 310,000 shares; 2025Q1: 310,000 shares; 2025Q2: 158,000 shares; 2025Q3: 153,000 shares 153,000$39M7.85%-5,000Timeline
VVISA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 80,000 shares; 2024Q4: 80,000 shares; 2025Q1: 80,000 shares; 2025Q2: 80,000 shares; 2025Q3: 80,000 shares 80,000$27.3M5.5%0Timeline
KKRKKR & CO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 50,000 shares; 2024Q4: 150,000 shares; 2025Q1: 150,000 shares; 2025Q2: 185,000 shares; 2025Q3: 185,000 shares 185,000$24M4.84%0Timeline
QQQINVESCO QQQ TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 30,000 shares 30,000$18M3.63%newTimeline
TOGAMANAGED PORTFOLIO SERQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 200,000 shares; 2025Q1: 250,000 shares; 2025Q2: 325,000 shares; 2025Q3: 500,000 shares 500,000$17.8M3.58%+175,000Timeline
MAMASTERCARD INCORPORATEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 10,000 shares; 2025Q3: 10,000 shares 10,000$5.69M1.15%0Timeline
SPGIS&P GLOBAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 10,000 shares 10,000$4.87M0.98%newTimeline
MCOMOODYS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 10,000 shares; 2025Q3: 10,000 shares 10,000$4.76M0.96%0Timeline
CPNGCOUPANG INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 57,866 shares 57,866$1.86M0.38%newTimeline

Sold out in Q3 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
METAMETA PLATFORMS INC40,000$29.5Mshares
AMZNAMAZON COM INC100,000$21.9Mshares
SPYSTATE STR SPDR S&P 500 ETF T10,000$5.27Mshares

How Q3 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001193125-25-241925 superseded2025-10-17acceptance time not in the bulk data set
13F-HR/A 0001193125-25-243187 supersededrestatement2025-10-20acceptance time not in the bulk data set
13F-HR/A 0001193125-25-260452 baserestatement2025-10-31acceptance time not in the bulk data set