Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in MBC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 31.6M | $324.7M | +63.0% | 24.655% | 0.00% |
| 2 | PZENA INVESTMENT MANAGEMENT LLC | 15.3M | $157.7M | +301.9% | 11.978% | 0.46% |
| 3 | Coliseum Capital Management, LLC | 13.2M | $135.8M | +4.0% | 10.314% | 11.69% |
| 4 | Gates Capital Management, Inc. | 13.2M | $135.7M | +27.5% | 10.303% | 3.26% |
| 5 | FMR LLC | 10.4M | $106.7M | +138.9% | 8.103% | 0.00% |
| 6 | REDWOOD CAPITAL MANAGEMENT, LLC | 9.8M | $101.1M | +663.7% | 7.674% | 10.90% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 9.2M | $94.6M | +31.2% | 7.185% | 0.02% |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 8.8M | $90.9M | +54.3% | 6.903% | 0.00% |
| 9 | STATE STREET CORP | 8.2M | $84.3M | +67.6% | 6.404% | 0.00% |
| 10 | Pertento Partners LLP | 6.0M | $61.4M | +20.2% | 4.663% | 3.31% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 5.1M | $52.8M | +65.6% | 4.009% | 0.00% |
| 12 | Sixth Street Partners Management Company, L.P. | 4.9M | $50.5M | 0.0% | 3.833% | 0.01% |
| 13 | Diameter Capital Partners LP | 4.8M | $49.2M | +209.2% | 3.734% | 1.98% |
| 14 | Atlas FRM LLC | 4.6M | $47.6M | +255.7% | 3.613% | 2.04% |
| 15 | PARADIGM CAPITAL MANAGEMENT INC/NY | 4.6M | $47.5M | +326.8% | 3.609% | 1.29% |
| 16 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.1M | $42.6M | +68.6% | 3.238% | 0.00% |
| 17 | Monarch Alternative Capital LP | 3.7M | $38.1M | +85.0% | 2.891% | 5.38% |
| 18 | ACK Asset Management LLC | 3.7M | $38.1M | 0.0% | 2.891% | 4.45% |
| 19 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 3.1M | $32.2M | -0.0% | 2.448% | 0.01% |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.1M | $31.9M | +21.8% | 2.421% | 0.00% |
| 21 | COOKE & BIELER LP | 2.6M | $26.3M | -29.0% | 1.994% | 0.30% |
| 22 | MORGAN STANLEY | 2.5M | $26.2M | +121.6% | 1.987% | 0.00% |
| 23 | FRANKLIN RESOURCES INC | 2.5M | $25.3M | +2794.9% | 1.923% | 0.01% |
| 24 | NORTHERN TRUST CORP | 2.2M | $23.0M | +65.3% | 1.750% | 0.00% |
| 25 | GOLDMAN SACHS GROUP INC | 2.0M | $20.3M | -35.4% | 1.545% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MBC — a direct measure of their conviction.
Filings activity in MBC during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 349 | +3.9% | 172.72% | 19.12 pp | $2.22B | +77% |
| Q1 2026 | 336 | +3.4% | 191.84% | +9.74 pp | $1.25B | 20% |
| Q4 2025 | 325 | 1.5% | 182.10% | +15.79 pp | $1.57B | 7.5% |
| Q3 2025 | 330 | +2.8% | 166.31% | +22.76 pp | $1.70B | +38% |
| Q2 2025 | 321 | 4.2% | 143.55% | 3.81 pp | $1.23B | 17% |
| Q1 2025 | 335 | 5.9% | 147.36% | +5.40 pp | $1.48B | 5.4% |
| Q4 2024 | 356 | +2.3% | 141.96% | 0.51 pp | $1.57B | 21% |
| Q3 2024 | 348 | — | 142.47% | — | $1.98B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MBC stock.
Based on Q2 2026 13F filings, institutional ownership of MasterBrand, Inc. stands at 172.7%, held across 349 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MBC, with approximately 31,554,598 shares worth $0.32B as of Q2 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of MBC.
Our composite Smart Money Score for MBC is 29 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
65 institutions opened new positions in MBC during Q2 2026, while 49 fully exited. 243 added to existing positions and 29 trimmed.
MBC institutional ownership fell by 19.12 percentage points quarter-over-quarter, with a net change of +13 holders.
The top 10 institutions account for 58.2% of all reported 13F value in MBC, and the top 25 account for 83.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
MasterBrand, Inc. (MBC) Institutional Ownership