MBB Public Markets I LLC

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), MBB Public Markets I LLC reported 27 stock positions worth $957.2 million. Its top holding was Progressive (PGR) at 20.6% of the portfolio, followed by Aercap (AER, 17.0%) and Amazon.com (AMZN, 15.3%). Compared with Q3 2025, it opened 4 new positions, sold out of 13, added to 3 and reduced 6. The biggest buy was a new position in Medline Class A (MDLN) and the biggest sale an exit from Microsoft (MSFT).

Most Recent 13F
Q2 2026
Location
CHICAGO, IL
CIK
0001892378
Portfolio Value
$957.2M (Q4 2025)
SEC Filing
0001214659-26-001973 ↗ filed Feb 17, 2026

Holdings Value

0$1.0B$2.0B$3.0B$4.0B$5.0B Q1 2024: $1.6B Q1 2024 Q2 2024: $4.8B Q2 2024 Q3 2024: $1.2B Q3 2024 Q4 2024: $843.9M Q4 2024 Q1 2025: $867.8M Q1 2025 Q2 2025: $868.8M Q2 2025 Q3 2025: $750.7M Q3 2025 Q4 2025: $957.2M $957.2M Q4 2025 Q1 2026: $835.2M Q1 2026 Q2 2026: $925.7M Q2 2026

Holdings 27 stocks · $957.2M
PGR Progressive Corp. 20.59% 865,558 $197.1M Add +16.1%
AER Aercap Holdings NV 17.02% 1,133,357 $162.9M No change
AMZN Amazon.com Inc. 15.33% 635,879 $146.8M Add +44.8%
FERG Ferguson Enterprises Inc. 10.88% 467,772 $104.1M Add +59.8%
MDLN Medline Inc. Class A 10.71% 2,441,379 $102.5M New
GOOGL Alphabet Inc. Class A 5.17% 157,986 $49.4M No change
VEA Vanguard Ftse Developed ETF 4.32% 662,117 $41.4M No change
EQT Eqt Corp. 3.45% 616,513 $33.0M No change
VTEB Vanguard Tax-Exempt Bond ETF 2.93% 558,333 $28.1M New
TECK Teck Resources Ltd.-CLS B 2.82% 563,228 $27.0M No change
AVGO Broadcom Inc. 2.34% 64,841 $22.4M Reduce -13.4%
AMGN Amgen Inc. 2.08% 60,824 $19.9M Reduce -12.9%
BG Bunge Global SA 0.94% 100,853 $9.0M Reduce -73.5%
KYTX Kyverna Therapeutics Inc. 0.60% 614,477 $5.8M No change
FCX Freeport-McMoran Inc. 0.53% 100,000 $5.1M Reduce -54.9%
GTX Garrett Motion Inc. 0.03% 15,768 $275K No change
IBP Installed Building Products 0.03% 1,000 $259K No change
AMG Affiliated Managers Group 0.03% 894 $258K No change
WDC Western Digital Corp. 0.03% 1,475 $254K Reduce -36.5%
GOOG Alphabet Inc. Class C 0.03% 781 $245K New
IMXI International Money Express 0.02% 14,179 $218K No change
STX Seagate Technology Holdings 0.02% 743 $205K Reduce -36.5%
SAIA Saia Inc. 0.02% 618 $202K New
HLMN Hillman Solutions Corp. 0.02% 21,650 $187K No change
AHCO Adapthealth Corp. 0.02% 18,132 $181K No change
VMD Viemed Healthcare Inc. 0.02% 23,384 $174K No change
JBI Janus International Group Inc. 0.01% 19,808 $130K No change

Portfolio Sells Q3 2025 → Q4 2025
MSFT Microsoft Corp. Sold out 0.00% −3.51
BG Bunge Global SA Reduce -73.5% 0.94% −3.18
EWJ iShares MSCI Japan ETF Sold out 0.00% −1.12
AVGO Broadcom Inc. Reduce -13.4% 2.34% −0.94
FCX Freeport-McMoran Inc. Reduce -54.9% 0.53% −0.63
CCJ Cameco Corp. Sold out 0.00% −0.57
AMGN Amgen Inc. Reduce -12.9% 2.08% −0.54
PSKY Paramount Skydance Class B Sold out 0.00% −0.06
COF Capital One Financial Corp. Sold out 0.00% −0.03
BRK.B Berkshire Hathaway Inc. Class B Sold out 0.00% −0.03
PLTR Palantir Technologies Inc. Class A Sold out 0.00% −0.03
CVX Chevron Corp. Sold out 0.00% −0.03
TSLA Tesla Inc. Sold out 0.00% −0.03
F Ford Motor Co. Sold out 0.00% −0.02
BX Blackstone Inc. Sold out 0.00% −0.02
STX Seagate Technology Holdings Reduce -36.5% 0.02% −0.02
VTRS Viatris Inc. Sold out 0.00% −0.01
AMCR Amcor PLC Sold out 0.00% −0.01
WDC Western Digital Corp. Reduce -36.5% 0.03% −0.01

Portfolio Buys Q3 2025 → Q4 2025
MDLN Medline Inc. Class A New 10.71% +10.71
VTEB Vanguard Tax-Exempt Bond ETF New 2.93% +2.93
AMZN Amazon.com Inc. Add +44.8% 15.33% +2.49
FERG Ferguson Enterprises Inc. Add +59.8% 10.88% +2.12
GOOG Alphabet Inc. Class C New 0.03% +0.03
SAIA Saia Inc. New 0.02% +0.02
PGR Progressive Corp. Add +16.1% 20.59% −3.93

Options Activity Q3 2025 → Q4 2025
EWZ iShares MSCI Brazil ETF call Sold out 50,100 $1.6Mbefore exit
BX Blackstone Inc. put Sold out 800 $137Kbefore exit

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 25$925.7MPGR, AER, AMZN, FERG, MDLN
Q1 2026 24$835.2MPGR, AER, AMZN, FERG, MDLN
Q4 2025 27$957.2MPGR, AER, AMZN, FERG, MDLN
Q3 2025 36$750.7MPGR, AER, AMZN, FERG, VEA
Q2 2025 497$868.8MPGR, AER, FERG, AMZN, VEA
Q1 2025Amended 523$867.8MPGR, AER, SPMD, UNH, AMZN
Q4 2024 58$843.9MTECK, PGR, CTRA, DFAT, BG
Q3 2024 534$1.2BTECK, SPSM, CCJ, CTRA, BG
Q2 2024 671$4.8BMSFT, AAPL, NVDA, RSP, AMZN
Q1 2024 268$1.6BRSP, TECK, XLV, BG, EWZ