The largest holder of Mueller Industries stock is BlackRock Advisors LLC, with 22.3 million shares (10.07% of the company), worth about $1.39 billion as of September 25, 2026. The 10 largest holders together own 44.8%.
In Q2 2026, 763 institutional holdings reports listed 121.0 million shares worth $12.60 billion, up 22.2% in shares from Q1 2026.
Insiders reported 54 transactions in the last two years: 19 sales worth $70.74 million and no purchases. The newest one on file is from May 8, 2026 (Herzog Charles P Jr, Director).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 8, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Advisors LLC | 22.3 million | 10.07% | $1.4B |
| First Trust Advisors LP | 13.7 million | 6.18% | $853.0M |
| Fidelity Management & Research Co. LLC | 11.0 million | 4.98% | $688.0M |
| Vanguard Capital Management LLC | 10.0 million | 4.51% | $623.0M |
| Vanguard Portfolio Management LLC | 9.9 million | 4.49% | $620.0M |
| AQR Capital Management LLC | 9.4 million | 4.26% | $588.0M |
| State Street Corporation | 7.1 million | 3.22% | $444.0M |
| Geode Capital Management LLC | 6.3 million | 2.85% | $393.0M |
| Invesco Advisers, Inc. | 5.5 million | 2.48% | $343.0M |
| William Blair Investment Management LLC | 4.0 million | 1.80% | $248.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 763 | 121.0 million | $12.6B |
| Q1 2026 | 746 | 99.0 million | $11.0B |
| Q4 2025 | 710 | 101.0 million | $11.6B |
| Q3 2025 | 646 | 99.1 million | $10.0B |
| Q2 2025 | 581 | 98.2 million | $7.8B |
| Q1 2025 | 561 | 103.0 million | $7.8B |
| Q4 2024 | 545 | 103.0 million | $8.2B |
| Q3 2024 | 499 | 106.0 million | $7.9B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Herzog Charles P Jr | May 8, 2026 | Director | Stock Gift at price 0.00 per share. | – |
| Gladstein Gary S | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Hansen John B | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Drummond William C. | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Herzog Charles P Jr | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Hermanson Terry | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Donovan Elizabeth M.. | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Goldman Scott Jay | May 8, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Gladstein Gary S | May 1, 2026 | Director | Conversion of Exercise of derivative security at price 12.62 per share. | $123,447 |
| Christopher Gregory L | Apr 27, 2026 | Chief Executive Officer | Sale at price 137.29 per share. | $14.2M |
| Hermanson Terry | Feb 26, 2026 | Director | Stock Gift at price 0.00 per share. | – |
| Christopher Gregory L | Feb 25, 2026 | Chief Executive Officer | Stock Gift at price 0.00 per share. | – |
Newest 12 of 54 insider transactions in the last two years.
BlackRock Advisors LLC, with 10.07% of the company (as of September 25, 2026). Next: First Trust Advisors LP (6.18%) and Fidelity Management & Research Co. LLC (4.98%).
763 institutional holdings reports listed Mueller Industries shares in Q2 2026, 121.0 million shares in all worth $12.60 billion.
In the last two years insiders reported 19 sales and no purchases (54 transactions in all); the newest on file is from May 8, 2026.