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MBB PUBLIC MARKETS I LLC

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13F filer, CIK 1892378, CHICAGO, IL

MBB PUBLIC MARKETS I LLC reported $839,384,460 across 25 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-15. Its ten largest share positions make up 98.68% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001214659-26-006462

Period
2026-03-31
Reported value
$839M
Holdings
25
Top 10 weight
98.68%
New
4
Sold out
6

Largest buys vs the previous quarter

SecurityShares changeApprox. value
FERGadded+60,000$14M
AMZNadded+45,401$9.46M
VTEBadded+160,200$7.99M
PGRadded+25,000$4.96M
ESInew+7,444$254K

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
VEAexited-662,117-$41.4M
AMGNexited-60,824-$19.9M
GOOGLreduced-67,986-$19.6M
AVGOreduced-54,841-$17M
TECKreduced-240,000-$12.4M

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 0001214659-26-006462, largest first. % of portfolio is the value over $835,219,060, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
PGRPROGRESSIVE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,440 shares; 2024Q4: 240,706 shares; 2025Q1: 350,076 shares; 2025Q2: 589,906 shares; 2025Q3: 745,558 shares; 2025Q4: 865,558 shares; 2026Q1: 890,558 shares 890,558$177M21.14%+25,000Timeline
AERAERCAP HOLDINGS NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 516,726 shares; 2025Q2: 841,315 shares; 2025Q3: 1,133,357 shares; 2025Q4: 1,133,357 shares; 2026Q1: 1,133,357 shares 1,133,357$155M18.61%0Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 51,403 shares; 2024Q4: 104,872 shares; 2025Q1: 189,478 shares; 2025Q2: 189,179 shares; 2025Q3: 439,179 shares; 2025Q4: 635,879 shares; 2026Q1: 681,280 shares 681,280$142M16.99%+45,401Timeline
FERGFERGUSON ENTERPRISES 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: 267,772 shares; 2025Q3: 292,772 shares; 2025Q4: 467,772 shares; 2026Q1: 527,772 shares 527,772$123M14.74%+60,000Timeline
MDLNMEDLINE 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: 2,441,379 shares; 2026Q1: 2,441,379 shares 2,441,379$109M13.01%0Timeline
VTEBVANGUARD MUN BD FDSQuarterly 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: 558,333 shares; 2026Q1: 718,533 shares 718,533$35.8M4.29%+160,200Timeline
EQTEQT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 995,640 shares; 2024Q4: 795,542 shares; 2025Q1: 667,726 shares; 2025Q2: 616,513 shares; 2025Q3: 616,513 shares; 2025Q4: 616,513 shares; 2026Q1: 475,000 shares 475,000$30.2M3.62%-141,513Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 38,434 shares; 2024Q4: 112,258 shares; 2025Q1: 158,158 shares; 2025Q2: 157,986 shares; 2025Q3: 157,986 shares; 2025Q4: 157,986 shares; 2026Q1: 90,000 shares 90,000$25.9M3.1%-67,986Timeline
TECKTECK RESOURCES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,895,453 shares; 2024Q4: 1,750,239 shares; 2025Q1: 741,153 shares; 2025Q2: 563,228 shares; 2025Q3: 563,228 shares; 2025Q4: 563,228 shares; 2026Q1: 323,228 shares 323,228$16.7M2%-240,000Timeline
BGBUNGE GLOBAL SAQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 462,395 shares; 2024Q4: 478,818 shares; 2025Q1: 431,587 shares; 2025Q2: 380,853 shares; 2025Q3: 380,853 shares; 2025Q4: 100,853 shares; 2026Q1: 77,400 shares 77,400$9.85M1.18%-23,453Timeline
KYTXKYVERNA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 614,477 shares; 2024Q4: 614,477 shares; 2025Q1: 614,477 shares; 2025Q2: 614,477 shares; 2025Q3: 614,477 shares; 2025Q4: 614,477 shares; 2026Q1: 614,477 shares 614,477$5.3M0.63%0Timeline
AVGOBROADCOM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 107,710 shares; 2024Q4: 97,891 shares; 2025Q1: 100,149 shares; 2025Q2: 99,841 shares; 2025Q3: 74,841 shares; 2025Q4: 64,841 shares; 2026Q1: 10,000 shares 10,000$3.1M0.37%-54,841Timeline
GTXGARRETT MOTION INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 15,227 shares; 2024Q4: 15,227 shares; 2025Q1: 15,227 shares; 2025Q2: 15,768 shares; 2025Q3: 15,768 shares; 2025Q4: 15,768 shares; 2026Q1: 15,768 shares 15,768$287K0.03%0Timeline
IBPINSTALLED BLDG PRODS 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: 1,000 shares; 2025Q4: 1,000 shares; 2026Q1: 1,000 shares 1,000$265K0.03%0Timeline
ESIELEMENT SOLUTIONS 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: 7,444 shares 7,444$254K0.03%newTimeline
AMGAFFILIATED MANAGERS GROUPQuarterly 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: 894 shares; 2025Q4: 894 shares; 2026Q1: 894 shares 894$247K0.03%0Timeline
IMXIINTERNATIONAL MONEY EXPRESSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 14,179 shares; 2025Q3: 14,179 shares; 2025Q4: 14,179 shares; 2026Q1: 14,179 shares 14,179$224K0.03%0Timeline
SAIASAIA 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: 618 shares; 2026Q1: 618 shares 618$217K0.03%0Timeline
AHCOADAPTHEALTH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 14,220 shares; 2024Q4: 14,220 shares; 2025Q1: 14,220 shares; 2025Q2: 18,132 shares; 2025Q3: 18,132 shares; 2025Q4: 18,132 shares; 2026Q1: 18,132 shares 18,132$216K0.03%0Timeline
VMDVIEMED HEALTHCARE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 19,881 shares; 2024Q4: 19,881 shares; 2025Q1: 19,881 shares; 2025Q2: 23,384 shares; 2025Q3: 23,384 shares; 2025Q4: 23,384 shares; 2026Q1: 23,384 shares 23,384$215K0.03%0Timeline
UNFUNIFIRST CORP MASSQuarterly 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: 854 shares 854$215K0.03%newTimeline
RUSHARUSH ENTERPRISES 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: 3,199 shares 3,199$211K0.03%newTimeline
HLMNHILLMAN SOLUTIONS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 15,044 shares; 2024Q4: 15,044 shares; 2025Q1: 15,044 shares; 2025Q2: 21,650 shares; 2025Q3: 21,650 shares; 2025Q4: 21,650 shares; 2026Q1: 21,650 shares 21,650$180K0.02%0Timeline
JBIJANUS INTERNATIONAL GROUP INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 19,808 shares; 2025Q3: 19,808 shares; 2025Q4: 19,808 shares; 2026Q1: 19,808 shares 19,808$102K0.01%0Timeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
AMZNAMAZON COM INC COMcall20,000$4.17Mnew

Sold out in Q1 2026

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

SecurityShares beforeValue beforeType
VEAVANGUARD TAX-MANAGED FDS662,117$41.4Mshares
AMGNAMGEN INC60,824$19.9Mshares
FCXFREEPORT MCMORAN INC100,000$5.08Mshares
WDCWESTERN DIGITAL CORP1,475$254Kshares
GOOGALPHABET INC781$245Kshares
STXSEAGATE TECHNOLOGY HLDNGS PL743$205Kshares

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 0001214659-26-006462 base2026-05-15acceptance time not in the bulk data set