Mueller Industries, Inc.
US ˙ NYSE ˙ US6247561029

SecurityMLI / Mueller Industries, Inc.
InstitutionWhittier Trust Co
Latest Disclosed Ownership3,200 shares
Latest Disclosed Value $ 360,640
Whittier Trust Co ownership in MLI / Mueller Industries, Inc.

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 3,200 shares of Mueller Industries, Inc. (US:MLI) valued at $354,560 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 3,200 shares of Mueller Industries, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $420,320 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)
2026-04-28 2026-03-31 13F MUELLER INDS common 624756102 3,200 0 0.00 361 -6.01 0.0021
2026-01-26 2025-12-31 13F MUELLER INDS common 624756102 3,200 0 0.00 384 19.31 0.0042
2025-10-31 2025-09-30 13F MUELLER INDS common 624756102 3,200 0 0.00 322 26.38 0.0037
2025-07-30 2025-06-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 0 0.00 254 4.53 0.0031
2025-05-02 2025-03-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 0 0.00 244 -3.95 0.0034
2025-02-11 2024-12-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 0 0.00 254 6.75 0.0033
2024-10-21 2024-09-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 0 0.00 237 30.22 0.0032
2024-07-29 2024-06-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 0 0.00 182 5.81 0.0026
2024-05-02 2024-03-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 0 0.00 173 14.67 0.0025
2024-01-11 2023-12-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 3,200 1,600 100.00 151 25.00 0.0024
2023-10-27 2023-09-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 1,600 0 0.00 120 -13.67 0.0021
2023-07-24 2023-06-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 1,600 0 0.00 140 18.80 0.0024
2023-04-21 2023-03-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 1,600 0 0.00 118 24.47 0.0021
2023-01-25 2022-12-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 1,600 0 0.00 94 -1.05 0.0018
2022-10-21 2022-09-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 1,600 800 100.00 95 120.93 0.0020
2022-07-28 2022-06-30 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 800 0 0.00 43 0.00 0.0009
2022-04-29 2022-03-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 800 0 0.00 43 -8.51 0.0007
2022-01-19 2021-12-31 13F MUELLER INDS INC COM US SMALL-CAP EQUITIES 624756102 800 800 47 0.0008
2018-10-23 2018-09-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 0 -380 -100.00 0 -100.00
2018-07-20 2018-06-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 380 380 11 0.0005
2017-04-26 2017-03-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 0 -3,336 -100.00 0 -100.00
2017-01-18 2016-12-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 3,336 0 0.00 133 23.15 0.0057
2016-11-10 2016-09-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 3,336 0 0.00 108 1.89 0.0047
2016-07-28 2016-06-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 3,336 0 0.00 106 8.16 0.0047
2016-04-28 2016-03-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 3,336 -440 -11.65 98 -3.92 0.0043
2016-02-10 2015-12-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 3,776 3,336 758.18 102 684.62 0.0046
2015-11-12 2015-09-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 440 0 0.00 13 -13.33 0.0006
2015-08-13 2015-06-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 440 0 0.00 15 -6.25 0.0007
2015-05-05 2015-03-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 440 440 0.00 16 0.0007
2015-02-04 2014-12-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 0 -380 -100.00 0 -100.00
2014-11-07 2014-09-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 380 0 0.00 11 0.00 0.0005
2014-08-04 2014-06-30 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 380 0 0.00 11 0.00 0.0005
2014-05-01 2014-03-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 380 190 100.00 11 -8.33 0.0006
2014-02-05 2013-12-31 13F MUELLER INDS INC COM US SMALL AND MID-CAP EQUITIES 624756102 190 0 0.00 12 9.09 0.0006
2013-11-18 2013-09-30 13F MUELLER INDS COM 624756102 190 0 0.00 11 10.00 0.0006
2013-08-14 2013-06-30 13F MUELLER INDS COM 624756102 190 190 10 0.0006
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.