COOKE & BIELER LP MBC — MasterBrand Inc.

Ownership history in COOKE & BIELER LP  ·  3 quarters on record

AI Ownership Summary

COOKE & BIELER LP reported MasterBrand Inc. (MBC) in 3 quarterly 13F filings from 2025 Q4 through 2026 Q2. Peak portfolio weight reached 0.34% in 2026 Q1. The latest visible filing shows MBC at 0.30% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this MBC ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was COOKE & BIELER LP's position in MasterBrand Inc., and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q2

MBC was reported at 0.30% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.34% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q4 to 2026 Q2

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

MBC stock page COOKE & BIELER LP fund profile COOKE & BIELER LP full holdings
How COOKE & BIELER LP held MBC — position size vs. price
% of Fund (quarterly)    MBC price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 3 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 REDUCED — — — 2,551,527 -1,043,018 -29.0% 0.30% $26.3M 2026-07-30 $8.15
2026 Q1 ADDED — — — 3,594,545 +763,509 +27.0% 0.34% $29.9M 2026-05-04 $8.17
2025 Q4 INITIATED — — — 2,831,036 — — 0.33% $31.3M 2026-02-09 $13.45

🏢 Other funds also holding MBC

As of 2026 Q2 — sorted by position size

GRACE & WHITE INC /NY 3Y 7Y 1.16% North Growth Management Ltd. 3Y 7Y 0.57% SummerHaven Investment Management, LLC 3Y 0.33% PEREGRINE CAPITAL MANAGEMENT LLC 3Y 7Y 0.16% Park Capital Management, LLC / WI 0.06% Claret Asset Management Corp 3Y 7Y 0.03% D.A. DAVIDSON & CO. 3Y 7Y 0.02% Versant Capital Management, Inc 3Y 7Y 0.01% Brookwood Investment Group LLC 0.01% Asset Planning,Inc 0.01%

FAQ About COOKE & BIELER LP and MBC

These are the practical questions this page is built to answer before you even open the full history table.

How long has COOKE & BIELER LP reported owning MBC?

COOKE & BIELER LP reported MBC across 3 quarterly 13F filings, from 2025 Q4 through 2026 Q2.

What was the largest reported MBC position in COOKE & BIELER LP's portfolio?

The largest reported portfolio weight for MBC was 0.34% in 2026 Q1.

What is the latest reported MBC position on this page?

The most recent filing on this page is 2026 Q2, when COOKE & BIELER LP reported 2,551,527 shares, equal to 0.30% of portfolio, with an estimated market value of $26.3M.

What does the chart on this MBC ownership page compare?

The chart compares COOKE & BIELER LP's quarterly MBC portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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