Mueller Industries, Inc.
US ˙ NYSE ˙ US6247561029

SecurityMLI / Mueller Industries, Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership174,744 shares
Latest Disclosed Value $ 19,361,626
Mercer Global Advisors Inc /adv reports 13.36% increase in ownership of MLI / Mueller Industries, Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 174,744 shares of Mueller Industries, Inc. (US:MLI) valued at $19,361,635 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 154,151 shares of Mueller Industries, Inc.. This represents a change in shares of 13.36% during the quarter. The current value of the position is $23,206,003 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MUELLER INDS COM 624756102 174,744 20,593 13.36 19,362 9.41 0.0287
2026-02-17 2025-12-31 13F MUELLER INDS COM 624756102 154,151 21,064 15.83 17,697 31.51 0.0270
2025-11-14 2025-09-30 13F MUELLER INDS COM 624756102 133,087 40,009 42.98 13,456 81.94 0.0225
2025-08-14 2025-06-30 13F MUELLER INDS COM 624756102 93,078 4,408 4.97 7,397 9.55 0.0151
2025-05-15 2025-03-31 13F MUELLER INDS COM 624756102 88,670 5,862 7.08 6,751 2.74 0.0155
2025-02-14 2024-12-31 13F MUELLER INDS COM 624756102 82,808 -5,474 -6.20 6,572 2.00 0.0160
2024-11-14 2024-09-30 13F MUELLER INDS COM 624756102 88,282 3,808 4.51 6,443 33.96 0.0151
2024-08-12 2024-06-30 13F MUELLER INDS COM 624756102 84,474 5,623 7.13 4,810 120,125.00 0.0131
2024-05-15 2024-03-31 13F MUELLER INDS COM 624756102 78,851 2,286 2.99 4 33.33 0.0121
2024-02-15 2023-12-31 13F MUELLER INDS COM 624756102 76,565 3,483 4.77 4 50.00 0.0109
2023-11-15 2023-09-30 13F/A-1 MUELLER INDS COM 624756102 73,082 36,236 98.34 3 -33.33 0.0104
2023-11-14 2023-09-30 13F MUELLER INDS COM 624756102 73,082 36,236 3 0.0104
2023-08-14 2023-06-30 13F MUELLER INDS COM 624756102 36,846 -131 -0.35 3 50.00 0.0128
2023-05-16 2023-03-31 13F MUELLER INDS COM 624756102 36,977 265 0.72 3 0.00 0.0123
2023-02-09 2022-12-31 13F MUELLER INDS COM 624756102 36,712 1,533 4.36 2 -99.90 0.0108
2022-11-15 2022-09-30 13F MUELLER INDS COM 624756102 35,179 730 2.12 2,091 13.89 0.0124
2022-08-10 2022-06-30 13F MUELLER INDS COM 624756102 34,449 5,670 19.70 1,836 17.77 0.0112
2022-05-10 2022-03-31 13F MUELLER INDS COM 624756102 28,779 2,990 11.59 1,559 1.83 0.0092
2022-02-04 2021-12-31 13F MUELLER INDS COM 624756102 25,789 2,812 12.24 1,531 62.18 0.0095
2021-11-10 2021-09-30 13F MUELLER INDS COM 624756102 22,977 3,089 15.53 944 9.64 0.0066
2021-08-10 2021-06-30 13F MUELLER INDS COM 624756102 19,888 1,017 5.39 861 10.38 0.0066
2021-08-10 2021-03-31 13F/A-1 MUELLER INDS COM 624756102 18,871 5,821 44.61 780 70.31 0.0071
2021-05-11 2021-03-31 13F MUELLER INDS COM 624756102 18,871 5,821 780 0.0075
2021-02-12 2020-12-31 13F MUELLER INDS COM 624756102 13,050 1,324 11.29 458 44.48 0.0057
2020-12-10 2020-09-30 13F MUELLER INDS COM 624756102 11,726 1,034 9.67 317 11.62 0.0048
2020-08-10 2020-06-30 13F MUELLER INDS COM 624756102 10,692 10,692 284 0.0052
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.