Institutional Manager · CIK 0001892378
MBB PUBLIC MARKETS I LLC
CHICAGO, IL · File #028-22092
Latest AUM
$957.2M
Positions
27
Top-10 Concentration
93.2%
Filings
10
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | MEDLINE INC | MDLN | +2,441,379 | +$102.5M | $0 |
| ADD | AMAZON COM INC | AMZN | +196,700 | +$45.4M | +$4.9M |
| ADD | FERGUSON ENTERPRISES INC | FERG | +175,000 | +$39.0M | -$570,906 |
| NEW | VANGUARD MUN BD FDS | 922907746 | +558,333 | +$28.1M | $0 |
| ADD | PROGRESSIVE CORP | 743315103 | +120,000 | +$27.3M | -$14.3M |
| EXITED | MICROSOFT CORP | 594918104 | -50,939 | -$26.4M | $0 |
| REDUCE | BUNGE GLOBAL SA | BG | -280,000 | -$24.9M | +$3.0M |
| EXITED | ISHARES INC | 46434G822 | -104,482 | -$8.4M | $0 |
| REDUCE | FREEPORT-MCMORAN INC | FCX | -121,678 | -$6.2M | +$2.6M |
| EXITED | CAMECO CORP | 13321L108 | -50,965 | -$4.3M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202527 pos · $957.2M
- 13F HOLDINGS REPORTQ/E Sep 202538 pos · $752.4M
- 13F HOLDINGS REPORTQ/E Jun 2025503 pos · $1.06B
- 13F HOLDINGS REPORT (Amended)Q/E Mar 2025531 pos · $906.6M
- 13F HOLDINGS REPORTQ/E Mar 2025531 pos · $807.9M
- 13F HOLDINGS REPORTQ/E Dec 202484 pos · $1.08B
- 13F HOLDINGS REPORTQ/E Sep 2024560 pos · $1.79B
- 13F HOLDINGS REPORTQ/E Jun 2024693 pos · $4.95B
- 13F HOLDINGS REPORTQ/E Mar 2024287 pos · $1.63B
- 13F HOLDINGS REPORTQ/E Dec 2023128 pos · $1.65B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | PROGRESSIVE CORP | 743315103 | 865,558 | $197.1M | 20.59% |
| 2 | AERCAP HOLDINGS NV | AER | 1,133,357 | $162.9M | 17.02% |
| 3 | AMAZON COM INC | AMZN | 635,879 | $146.8M | 15.33% |
| 4 | FERGUSON ENTERPRISES INC | FERG | 467,772 | $104.1M | 10.88% |
| 5 | MEDLINE INC | MDLN | 2,441,379 | $102.5M | 10.71% |
| 6 | ALPHABET INC | GOOG | 157,986 | $49.4M | 5.17% |
| 7 | VANGUARD TAX-MANAGED FDS | 921943858 | 662,117 | $41.4M | 4.32% |
| 8 | EQT CORP | EQT | 616,513 | $33.0M | 3.45% |
| 9 | VANGUARD MUN BD FDS | 922907746 | 558,333 | $28.1M | 2.93% |
| 10 | TECK RESOURCES LTD | TCKRF | 563,228 | $27.0M | 2.82% |
| 11 | BROADCOM INC | AVGO | 64,841 | $22.4M | 2.34% |
| 12 | AMGEN INC | AMGN | 60,824 | $19.9M | 2.08% |
| 13 | BUNGE GLOBAL SA | BG | 100,853 | $9.0M | 0.94% |
| 14 | KYVERNA THERAPEUTICS INC | KYTX | 614,477 | $5.8M | 0.60% |
| 15 | FREEPORT-MCMORAN INC | FCX | 100,000 | $5.1M | 0.53% |
| 16 | GARRETT MOTION INC | GTX | 15,768 | $274,836 | 0.03% |
| 17 | INSTALLED BLDG PRODS INC | 45780R101 | 1,000 | $259,390 | 0.03% |
| 18 | AFFILIATED MANAGERS GROUP IN | MGRE | 894 | $257,722 | 0.03% |
| 19 | WESTERN DIGITAL CORP | WDC | 1,475 | $254,098 | 0.03% |
| 20 | ALPHABET INC | GOOG | 781 | $245,078 | 0.03% |