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RWWM, INC.

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13F filer, CIK 1507683, ROCKLIN, CA

RWWM, INC. reported $1,369,884,432 across 34 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-04. Its ten largest share positions make up 87.86% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001507683-26-000011

Period
2026-03-31
Reported value
$1.37B
Holdings
34
Top 10 weight
87.86%
New
3
Sold out
3

Largest buys vs the previous quarter

SecurityShares changeApprox. value
WHRadded+1,591,849$85.8M
KHCadded+704,198$15.8M
ADBEnew+50,505$12.3M
HRBnew+360,354$11.4M
LULUnew+73,385$11.2M

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
CRIreduced-2,173,964-$77.7M
BABAreduced-216,782-$27.2M
XOMreduced-73,970-$12.5M
SGOVreduced-44,463-$4.48M
WFCreduced-46,534-$3.7M

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 2026

Share positions as resolved from 13F-HR 0001507683-26-000011, largest first. % of portfolio is the value over $1,369,884,432, 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; 2024Q2: restricted; 2024Q3: 2,851,198 shares; 2024Q4: 2,826,939 shares; 2025Q1: 2,591,858 shares; 2025Q2: 2,557,852 shares; 2025Q3: 2,466,729 shares; 2025Q4: 2,378,559 shares; 2026Q1: 2,161,777 shares 2,161,777$271M19.8%-216,782Timeline
DJCODAILY JOURNAL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 318,221 shares; 2024Q4: 316,714 shares; 2025Q1: 325,419 shares; 2025Q2: 334,902 shares; 2025Q3: 338,941 shares; 2025Q4: 367,856 shares; 2026Q1: 360,560 shares 360,560$174M12.7%-7,296Timeline
WFCWELLS FARGO & COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,190,519 shares; 2024Q4: 1,897,727 shares; 2025Q1: 1,835,793 shares; 2025Q2: 1,807,127 shares; 2025Q3: 1,792,358 shares; 2025Q4: 1,767,878 shares; 2026Q1: 1,721,344 shares 1,721,344$137M10%-46,534Timeline
WHRWHIRLPOOL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 294,359 shares; 2024Q4: 294,108 shares; 2025Q1: 310,796 shares; 2025Q2: 329,867 shares; 2025Q3: 555,380 shares; 2025Q4: 830,769 shares; 2026Q1: 2,422,618 shares 2,422,618$131M9.54%+1,591,849Timeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 252,235 shares; 2024Q4: 251,973 shares; 2025Q1: 247,747 shares; 2025Q2: 243,983 shares; 2025Q3: 244,256 shares; 2025Q4: 241,968 shares; 2026Q1: 243,593 shares 243,593$117M8.52%+1,625Timeline
FOXFFOX FACTORY HLDG CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 729,071 shares; 2024Q4: 1,997,531 shares; 2025Q1: 3,576,560 shares; 2025Q2: 3,259,077 shares; 2025Q3: 2,569,434 shares; 2025Q4: 5,285,437 shares; 2026Q1: 5,533,072 shares 5,533,072$91.1M6.65%+247,635Timeline
CRICARTERS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 552,996 shares; 2024Q4: 892,875 shares; 2025Q1: 2,190,482 shares; 2025Q2: 4,075,791 shares; 2025Q3: 5,900,170 shares; 2025Q4: 4,516,323 shares; 2026Q1: 2,342,359 shares 2,342,359$83.8M6.11%-2,173,964Timeline
SGOVISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 765,241 shares; 2026Q1: 720,778 shares 720,778$72.6M5.3%-44,463Timeline
KHCKRAFT HEINZ COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,402,771 shares; 2024Q4: 1,881,362 shares; 2025Q1: 1,329,471 shares; 2025Q2: 1,296,591 shares; 2025Q3: 1,721,883 shares; 2025Q4: 2,500,400 shares; 2026Q1: 3,204,598 shares 3,204,598$72.1M5.26%+704,198Timeline
XOMEXXON MOBIL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 996,319 shares; 2024Q4: 972,730 shares; 2025Q1: 844,424 shares; 2025Q2: 474,591 shares; 2025Q3: 417,082 shares; 2025Q4: 395,473 shares; 2026Q1: 321,503 shares 321,503$54.5M3.98%-73,970Timeline
PIIPOLARIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 186,376 shares; 2024Q4: 889,698 shares; 2025Q1: 2,395,049 shares; 2025Q2: 2,401,477 shares; 2025Q3: 1,085,621 shares; 2025Q4: 916,620 shares; 2026Q1: 887,961 shares 887,961$48.4M3.53%-28,659Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 95,198 shares; 2024Q4: 94,292 shares; 2025Q1: 93,995 shares; 2025Q2: 93,147 shares; 2025Q3: 92,841 shares; 2025Q4: 92,400 shares; 2026Q1: 90,658 shares 90,658$33.6M2.45%-1,742Timeline
HELEHELEN OF TROY LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 192,861 shares; 2025Q3: 515,176 shares; 2025Q4: 632,140 shares; 2026Q1: 1,173,829 shares 1,173,829$16.9M1.24%+541,689Timeline
ADBEADOBE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 50,505 shares 50,505$12.3M0.9%newTimeline
HRBBLOCK H & R INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 360,354 shares 360,354$11.4M0.83%newTimeline
LULULULULEMON ATHLETICA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 73,385 shares 73,385$11.2M0.82%newTimeline
AMCXAMC GLOBAL MEDIA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,290,332 shares; 2024Q4: 1,556,654 shares; 2025Q1: 2,712,921 shares; 2025Q2: 3,330,026 shares; 2025Q3: 1,710,961 shares; 2025Q4: 1,526,100 shares; 2026Q1: 1,522,968 shares 1,522,968$10.3M0.75%-3,132Timeline
WGOWINNEBAGO INDS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 289,644 shares; 2025Q3: 174,348 shares; 2025Q4: 170,711 shares; 2026Q1: 166,223 shares 166,223$5.15M0.38%-4,488Timeline
COSTCOSTCO WHOLESALE CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 4,302 shares; 2025Q4: 4,302 shares; 2026Q1: 4,227 shares 4,227$4.21M0.31%-75Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 11,622 shares; 2024Q4: 12,102 shares; 2025Q1: 10,352 shares; 2025Q2: 7,983 shares; 2025Q3: 8,528 shares; 2025Q4: 8,361 shares; 2026Q1: 7,282 shares 7,282$1.85M0.13%-1,079Timeline
FAFFIRST AMERN FINL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 15,417 shares; 2024Q4: 15,417 shares; 2025Q1: 15,417 shares; 2025Q2: 15,417 shares; 2025Q3: 29,057 shares; 2025Q4: 29,057 shares; 2026Q1: 29,057 shares 29,057$1.75M0.13%0Timeline
IBMINTERNATIONAL BUSINESS MACHSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 12,983 shares; 2024Q4: 12,410 shares; 2025Q1: 10,555 shares; 2025Q2: 10,321 shares; 2025Q3: 10,205 shares; 2025Q4: 9,541 shares; 2026Q1: 6,387 shares 6,387$1.55M0.11%-3,154Timeline
RSGREPUBLIC SVCS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 9,815 shares; 2024Q4: 7,009 shares; 2025Q1: 6,333 shares; 2025Q2: 6,169 shares; 2025Q3: 6,168 shares; 2025Q4: 6,164 shares; 2026Q1: 6,078 shares 6,078$1.33M0.1%-86Timeline
TBLLINVESCO EXCH TRADED FD TR IIQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 25,860 shares; 2026Q1: 11,926 shares 11,926$1.26M0.09%-13,934Timeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 6,530 shares; 2024Q4: 6,317 shares; 2025Q1: 6,699 shares; 2025Q2: 6,724 shares; 2025Q3: 7,866 shares; 2025Q4: 7,822 shares; 2026Q1: 5,740 shares 5,740$1M0.07%-2,082Timeline
GILDGILEAD SCIENCES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 7,169 shares; 2025Q4: 7,169 shares; 2026Q1: 7,169 shares 7,169$999K0.07%0Timeline
ACNACCENTURE PLC IRELANDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 4,422 shares; 2025Q4: 4,332 shares; 2026Q1: 4,153 shares 4,153$823K0.06%-179Timeline
CVXCHEVRON CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 3,099 shares; 2024Q4: 2,350 shares; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 2,695 shares; 2025Q4: 2,623 shares; 2026Q1: 2,623 shares 2,623$543K0.04%0Timeline
WNCWABASH NATL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 376,641 shares; 2024Q4: 375,873 shares; 2025Q1: 364,491 shares; 2025Q2: 314,287 shares; 2025Q3: 204,481 shares; 2025Q4: 124,446 shares; 2026Q1: 55,375 shares 55,375$477K0.03%-69,071Timeline
SBUXSTARBUCKS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 4,000 shares; 2025Q4: 4,049 shares; 2026Q1: 4,074 shares 4,074$365K0.03%+25Timeline
IVVISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 418 shares; 2026Q1: 392 shares 392$256K0.02%-26Timeline
ORCLORACLE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,407 shares; 2024Q4: 1,407 shares; 2025Q1: not reported; 2025Q2: 1,320 shares; 2025Q3: 1,320 shares; 2025Q4: 1,320 shares; 2026Q1: 1,487 shares 1,487$219K0.02%+167Timeline
TJXTJX COS INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 1,452 shares; 2025Q4: 1,456 shares; 2026Q1: 1,367 shares 1,367$218K0.02%-89Timeline
XPOFXPONENTIAL FITNESS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 30,000 shares; 2025Q4: 30,000 shares; 2026Q1: 30,000 shares 30,000$181K0.01%0Timeline

Sold out in Q1 2026

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

SecurityShares beforeValue beforeType
WMTWALMART INC2,388$266Kshares
GOOGLALPHABET INC814$255Kshares
SYKSTRYKER CORPORATION633$222Kshares

How Q1 2026 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 0001507683-26-000011 base2026-05-04acceptance time not in the bulk data set