MBB Public Markets I LLC
MBB Public Markets I LLC reported 25 US-listed holdings worth $925.7 million in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Progressive Corp. (22.2%), AerCap Holdings N.V. (19.3%) and Amazon.com Inc. (18.9%). Against the quarter before, it opened 3 positions, added to 5, trimmed 2 and sold out of 2.
The 14 largest of its 25 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.
What the fund reported holding at each quarter's end; hover a bar for the number of positions
What its reported holdings returned
Held through each quarter, the holdings it reported returned +9.5% over the 7 quarters to 30 June 2026, against +30.2% for the S&P 500.
Not the fund's own return: each 13F's holdings are kept unchanged until the next one, so trades inside a quarter, dividends, cash and fees are left out. A rough guide to how its picks have done over time.
What it did on the quarter
Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held
Opened 3
- Landstar System Inc. LSTR$234,936
- Lantheus Holdings, Inc. LNTH$223,766
- Frontdoor, Inc. FTDR$218,105
Added to 5
- Vanguard Mun BD FDS VTEB+895,872 shares · +125%
- AerCap Holdings N.V. AER+90,885 shares · +8%
- Amazon.com Inc. AMZN+54,200 shares · +8%
- Progressive Corp. PGR+50,953 shares · +6%
- Ferguson Enterprises Inc. FERG+30,000 shares · +6%
Trimmed 2
- Alphabet Inc. GOOGL-50,000 shares · -56%
- Teck Resources Ltd TECK-203,000 shares · -63%
Sold out of 2
- Bunge Global SA BG$9.8 million last quarter
- Broadcom Inc. AVGO$3.1 million last quarter
What it holds
| Company | Shares | Value | Of its book | Change in shares |
|---|---|---|---|---|
| Progressive Corp. PGR | 941.5K | $205.7 million | 22.22% | +51.0K |
| AerCap Holdings N.V. AER | 1.2M | $178.5 million | 19.28% | +90.9K |
| Amazon.com Inc. AMZN | 735.5K | $175.3 million | 18.94% | +54.2K |
| Ferguson Enterprises Inc. FERG | 557.8K | $132.4 million | 14.30% | +30.0K |
| Medline Inc. MDLN | 2.4M | $96.3 million | 10.40% | no change |
| Vanguard Mun BD FDS VTEB | 1.6M | $81.7 million | 8.82% | +895.9K |
| EQT Corp. EQT | 475.0K | $25.3 million | 2.73% | no change |
| Alphabet Inc. GOOGL | 40.0K | $14.3 million | 1.54% | -50.0K |
| Teck Resources Ltd TECK | 120.2K | $7.1 million | 0.77% | -203.0K |
| Kyverna Therapeutics Inc. KYTX | 614.5K | $5.5 million | 0.59% | no change |
| Garrett Motion Inc. GTX | 15.8K | $571,275 | 0.06% | no change |
| Element Solutions Inc. ESI | 7.4K | $355,451 | 0.04% | no change |
| Affiliated Managers Group, Inc. AMG | 894 | $302,530 | 0.03% | no change |
| Viemed Healthcare Inc. VMD | 23.4K | $266,578 | 0.03% | no change |
| Saia Inc. SAIA | 618 | $260,277 | 0.03% | no change |
| Landstar System Inc. LSTR | 1.1K | $234,936 | 0.03% | new |
| Rush Enterprises Inc. \Tx\ RUSHA | 3.2K | $233,479 | 0.03% | no change |
| Installed Building Products, Inc. IBP | 1.0K | $229,840 | 0.02% | no change |
| Unifirst Corp. UNF | 854 | $225,849 | 0.02% | no change |
| Lantheus Holdings, Inc. LNTH | 2.0K | $223,766 | 0.02% | new |
| Frontdoor, Inc. FTDR | 2.8K | $218,105 | 0.02% | new |
| International Mny Express in IMXI | 14.2K | $204,887 | 0.02% | no change |
| AdaptHealth Corp. AHCO | 18.1K | $188,935 | 0.02% | no change |
| Hillman Solutions Corp. HLMN | 21.6K | $182,726 | 0.02% | no change |
| Janus International Group in JBI | 19.8K | $109,934 | 0.01% | no change |
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Change is shares against its 13F for the quarter before; the 2 it sold out of are in the box above.Options it reported
| Company | Option | Shares under the options | Value of those shares |
|---|---|---|---|
| Amazon.com Inc. AMZN | Calls | 1.2K | $297,925 |
1 option lines. A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost; they are not counted in the holdings above.