MBB Public Markets I LLC

Name: MBB PUBLIC MARKETS I LLC 13F holdings, Q1 2026
Creator: MBB PUBLIC MARKETS I LLC
Published: 2026-05-15

Q2 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), MBB Public Markets I LLC reported 24 stock positions worth $835.2 million. Its top holding was Progressive (PGR) at 21.1% of the portfolio, followed by Aercap (AER, 18.6%) and Amazon.com (AMZN, 17.0%). Compared with Q4 2025, it opened 3 new positions, sold out of 6, added to 4 and reduced 5. The biggest buy was Ferguson Enterprises (FERG, shares +13%) and the biggest sale an exit from Vanguard Ftse Developed ETF (VEA).

Most Recent 13F: Q2 2026
Location: CHICAGO, IL
CIK: 0001892378
Portfolio Value: $835.2M (Q1 2026)
SEC Filing: 0001214659-26-006462 ↗ filed May 15, 2026

Holdings Value

Holdings 24 stocks · $835.2M


PGR Progressive Corp.	21.14%	890,558	$176.5M	Add +2.9%
AER Aercap Holdings NV	18.61%	1,133,357	$155.5M	No change
AMZN Amazon.com Inc.	16.99%	681,280	$141.9M	Add +7.1%
FERG Ferguson Enterprises Inc.	14.74%	527,772	$123.1M	Add +12.8%
MDLN Medline Inc. Class A	13.01%	2,441,379	$108.6M	No change
VTEB Vanguard Tax-Exempt Bond ETF	4.29%	718,533	$35.8M	Add +28.7%
EQT Eqt Corp.	3.62%	475,000	$30.2M	Reduce -22.9%
GOOGL Alphabet Inc. Class A	3.10%	90,000	$25.9M	Reduce -43.0%
TECK Teck Resources Ltd.-CLS B	2.00%	323,228	$16.7M	Reduce -42.6%
BG Bunge Global SA	1.18%	77,400	$9.8M	Reduce -23.3%
KYTX Kyverna Therapeutics Inc.	0.63%	614,477	$5.3M	No change
AVGO Broadcom Inc.	0.37%	10,000	$3.1M	Reduce -84.6%
GTX Garrett Motion Inc.	0.03%	15,768	$287K	No change
IBP Installed Building Products	0.03%	1,000	$265K	No change
ESI Element Solutions Inc.	0.03%	7,444	$254K	New
AMG Affiliated Managers Group	0.03%	894	$247K	No change
IMXI International Money Express	0.03%	14,179	$224K	No change
SAIA Saia Inc.	0.03%	618	$217K	No change
AHCO Adapthealth Corp.	0.03%	18,132	$216K	No change
VMD Viemed Healthcare Inc.	0.03%	23,384	$215K	No change
UNF Unifirst Corp.	0.03%	854	$215K	New
RUSHA Rush Enterprises Inc. Class A	0.03%	3,199	$211K	New
HLMN Hillman Solutions Corp.	0.02%	21,650	$180K	No change
JBI Janus International Group Inc.	0.01%	19,808	$102K	No change

Options reported separately and not counted above: AMZN calls ($4.2M).

Portfolio Sells Q4 2025 → Q1 2026


VEA Vanguard Ftse Developed ETF	Sold out	0.00%	−4.32
AMGN Amgen Inc.	Sold out	0.00%	−2.08
GOOGL Alphabet Inc. Class A	Reduce -43.0%	3.10%	−2.07
AVGO Broadcom Inc.	Reduce -84.6%	0.37%	−1.97
TECK Teck Resources Ltd.-CLS B	Reduce -42.6%	2.00%	−0.82
FCX Freeport-McMoran Inc.	Sold out	0.00%	−0.53
WDC Western Digital Corp.	Sold out	0.00%	−0.03
GOOG Alphabet Inc. Class C	Sold out	0.00%	−0.03
STX Seagate Technology Holdings	Sold out	0.00%	−0.02
EQT Eqt Corp.	Reduce -22.9%	3.62%	+0.17
BG Bunge Global SA	Reduce -23.3%	1.18%	+0.24

Portfolio Buys Q4 2025 → Q1 2026


FERG Ferguson Enterprises Inc.	Add +12.8%	14.74%	+3.86
AMZN Amazon.com Inc.	Add +7.1%	16.99%	+1.65
VTEB Vanguard Tax-Exempt Bond ETF	Add +28.7%	4.29%	+1.36
PGR Progressive Corp.	Add +2.9%	21.14%	+0.55
ESI Element Solutions Inc.	New	0.03%	+0.03
UNF Unifirst Corp.	New	0.03%	+0.03
RUSHA Rush Enterprises Inc. Class A	New	0.03%	+0.03

Options Activity Q4 2025 → Q1 2026


AMZN Amazon.com Inc.	call	New	20,000	$4.2M

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

All Filings

Quarter	Positions	13F Reported Value	Top Holdings
Q2 2026	25	$925.7M	PGR, AER, AMZN, FERG, MDLN
Q1 2026	24	$835.2M	PGR, AER, AMZN, FERG, MDLN
Q4 2025	27	$957.2M	PGR, AER, AMZN, FERG, MDLN
Q3 2025	36	$750.7M	PGR, AER, AMZN, FERG, VEA
Q2 2025	497	$868.8M	PGR, AER, FERG, AMZN, VEA
Q1 2025Amended	523	$867.8M	PGR, AER, SPMD, UNH, AMZN
Q4 2024	58	$843.9M	TECK, PGR, CTRA, DFAT, BG
Q3 2024	534	$1.2B	TECK, SPSM, CCJ, CTRA, BG
Q2 2024	671	$4.8B	MSFT, AAPL, NVDA, RSP, AMZN
Q1 2024	268	$1.6B	RSP, TECK, XLV, BG, EWZ