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RWWM, INC.

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13F filer, CIK 1507683, ROCKLIN, CA

RWWM, INC. reported $1,242,281,714 across 19 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-04-17. Its ten largest share positions make up 95.24% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001085146-25-002156

Period
2025-03-31
Reported value
$1.24B
Holdings
19
Top 10 weight
95.24%
New
0
Sold out
2

Largest buys vs the previous quarter

SecurityShares changeApprox. value
PIIadded+1,505,351$61.6M
CRIadded+1,297,607$53.1M
FOXFadded+1,579,029$36.9M
AMCXadded+1,156,267$7.96M
DJCOadded+8,705$3.46M

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
BABAreduced-235,081-$31.1M
KHCreduced-551,891-$16.8M
XOMreduced-128,306-$15.3M
WFCreduced-61,934-$4.45M
BRK-Breduced-4,226-$2.25M

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, Q1 2025

Share positions as resolved from 13F-HR 0001085146-25-002156, largest first. % of portfolio is the value over $1,242,281,714, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
BABAALIBABA GROUP HLDG LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,851,198 shares; 2024Q4: 2,826,939 shares; 2025Q1: 2,591,858 shares 2,591,858$343M27.59%-235,081Timeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 252,235 shares; 2024Q4: 251,973 shares; 2025Q1: 247,747 shares 247,747$132M10.62%-4,226Timeline
WFCWELLS FARGO & COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,190,519 shares; 2024Q4: 1,897,727 shares; 2025Q1: 1,835,793 shares 1,835,793$132M10.61%-61,934Timeline
DJCODAILY JOURNAL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 318,221 shares; 2024Q4: 316,714 shares; 2025Q1: 325,419 shares 325,419$129M10.42%+8,705Timeline
XOMEXXON MOBIL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 996,319 shares; 2024Q4: 972,730 shares; 2025Q1: 844,424 shares 844,424$100M8.08%-128,306Timeline
PIIPOLARIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 186,376 shares; 2024Q4: 889,698 shares; 2025Q1: 2,395,049 shares 2,395,049$98.1M7.89%+1,505,351Timeline
CRICARTERS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 552,996 shares; 2024Q4: 892,875 shares; 2025Q1: 2,190,482 shares 2,190,482$89.6M7.21%+1,297,607Timeline
FOXFFOX FACTORY HLDG CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 729,071 shares; 2024Q4: 1,997,531 shares; 2025Q1: 3,576,560 shares 3,576,560$83.5M6.72%+1,579,029Timeline
KHCKRAFT HEINZ COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,402,771 shares; 2024Q4: 1,881,362 shares; 2025Q1: 1,329,471 shares 1,329,471$40.5M3.26%-551,891Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 95,198 shares; 2024Q4: 94,292 shares; 2025Q1: 93,995 shares 93,995$35.3M2.84%-297Timeline
WHRWHIRLPOOL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 294,359 shares; 2024Q4: 294,108 shares; 2025Q1: 310,796 shares 310,796$28M2.25%+16,688Timeline
AMCXAMC GLOBAL MEDIA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,290,332 shares; 2024Q4: 1,556,654 shares; 2025Q1: 2,712,921 shares 2,712,921$18.7M1.5%+1,156,267Timeline
WNCWABASH NATL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 376,641 shares; 2024Q4: 375,873 shares; 2025Q1: 364,491 shares 364,491$4.03M0.32%-11,382Timeline
IBMINTERNATIONAL BUSINESS MACHSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,983 shares; 2024Q4: 12,410 shares; 2025Q1: 10,555 shares 10,555$2.62M0.21%-1,855Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 11,622 shares; 2024Q4: 12,102 shares; 2025Q1: 10,352 shares 10,352$2.3M0.19%-1,750Timeline
RSGREPUBLIC SVCS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 9,815 shares; 2024Q4: 7,009 shares; 2025Q1: 6,333 shares 6,333$1.53M0.12%-676Timeline
FAFFIRST AMERN FINL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 15,417 shares; 2024Q4: 15,417 shares; 2025Q1: 15,417 shares 15,417$1.01M0.08%0Timeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,530 shares; 2024Q4: 6,317 shares; 2025Q1: 6,699 shares 6,699$726K0.06%+382Timeline
MCDMCDONALDS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 749 shares; 2024Q4: 749 shares; 2025Q1: 648 shares 648$202K0.02%-101Timeline

Sold out in Q1 2025

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

SecurityShares beforeValue beforeType
CVXCHEVRON CORPORATION2,350$340Kshares
ORCLORACLE CORP1,407$234Kshares

How Q1 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 0001085146-25-002156 base2025-04-17acceptance time not in the bulk data set