Mueller Industries, Inc.
US ˙ NYSE ˙ US6247561029

SecurityMLI / Mueller Industries, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership384 shares
Latest Disclosed Value $ 44,195
Parallel Advisors, LLC reports 141.51% increase in ownership of MLI / Mueller Industries, Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 384 shares of Mueller Industries, Inc. (US:MLI) valued at $44,083 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 159 shares of Mueller Industries, Inc.. This represents a change in shares of 141.51% during the quarter. The current value of the position is $50,438 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-02-11 2025-12-31 13F MUELLER INDS INC COM Stock 624756102 384 225 141.51 44 175.00 0.0008
2025-11-13 2025-09-30 13F MUELLER INDS INC COM Stock 624756102 159 17 11.97 16 45.45 0.0003
2025-07-08 2025-06-30 13F MUELLER INDS INC COM Stock 624756102 142 -17 -10.69 11 -8.33 0.0002
2025-04-08 2025-03-31 13F MUELLER INDS INC COM Stock 624756102 159 22 16.06 12 20.00 0.0003
2025-02-10 2024-12-31 13F MUELLER INDS INC COM Stock 624756102 137 82 149.09 11 150.00 0.0002
2024-11-13 2024-09-30 13F MUELLER INDS INC COM Stock 624756102 55 16 41.03 4 100.00 0.0001
2024-08-08 2024-06-30 13F MUELLER INDS INC COM Stock 624756102 39 13 50.00 2 100.00 0.0001
2024-05-06 2024-03-31 13F MUELLER INDS INC COM Stock 624756102 26 0 0.00 1 0.00 0.0000
2024-02-12 2023-12-31 13F MUELLER INDS INC COM Stock 624756102 26 13 100.00 1 0.0000
2024-05-20 2023-09-30 13F/A-1 MUELLER INDS INC COM Stock 624756102 13 0 0.00 1 -100.00 0.0000
2023-11-14 2023-09-30 13F MUELLER INDS INC COM Stock 624756102 13 0 1 0.0000
2024-05-20 2023-06-30 13F/A-1 MUELLER INDS INC COM Stock 624756102 13 0 0.00 1 0.0000
2023-08-04 2023-06-30 13F MUELLER INDS INC COM Stock 624756102 13 0 1 0.0000
2024-05-20 2023-03-31 13F/A-1 MUELLER INDS INC COM Stock 624756102 13 -8 -38.10 1 -100.00 0.0000
2023-04-25 2023-03-31 13F MUELLER INDS INC COM Stock 624756102 13 -8 1 0.0000
2023-02-06 2022-12-31 13F MUELLER INDS INC COM Stock 624756102 21 -4 -16.00 1 0.00 0.0001
2022-11-10 2022-09-30 13F MUELLER INDS INC COM Stock 624756102 25 10 66.67 1 0.00 0.0000
2022-08-01 2022-06-30 13F MUELLER INDS INC COM Stock 624756102 15 2 15.38 1 0.00 0.0000
2022-04-28 2022-03-31 13F MUELLER INDS INC COM Stock 624756102 13 -16 -55.17 1 -50.00 0.0000
2022-01-20 2021-12-31 13F MUELLER INDS INC COM Stock 624756102 29 3 11.54 2 100.00 0.0001
2021-11-02 2021-09-30 13F/A-1 MUELLER INDS INC COM Stock 624756102 26 26 1 0.0000
2020-07-16 2020-06-30 13F MUELLER INDS INC COM Stock 624756102 0 -600 -100.00 0 -100.00
2020-04-27 2020-03-31 13F MUELLER INDS INC COM Stock 624756102 600 0 0.00 14 -26.32 0.0011
2020-01-30 2019-12-31 13F MUELLER INDS INC COM Stock 624756102 600 0 0.00 19 11.76 0.0014
2019-11-01 2019-09-30 13F MUELLER INDS INC COM Stock 624756102 600 0 0.00 17 -5.56 0.0015
2019-08-05 2019-06-30 13F MUELLER INDS INC COM Stock 624756102 600 0 0.00 18 -5.26 0.0018
2019-05-01 2019-03-31 13F MUELLER INDS INC COM Stock 624756102 600 600 19 0.0021
2019-02-05 2018-12-31 13F MUELLER INDS INC COM Stock 624756102 0 0 0 0.0000
2018-05-08 2018-03-31 13F MUELLER INDS INC COM Stock 624756102 0 -39 -100.00 0 -100.00
2018-02-13 2017-12-31 13F MUELLER INDS INC COM Stock 624756102 39 0 0.00 1 0.00 0.0002
2017-11-15 2017-09-30 13F/A-1 MUELLER INDS INC COM Stock 624756102 39 0 0.00 1 0.00 0.0002
2017-08-07 2017-06-30 13F MUELLER INDS INC COM Stock 624756102 39 -2,100 -98.18 1 -98.48 0.0002
2017-05-12 2017-03-31 13F/A-1 MUELLER INDS INC COM Stock 624756102 2,139 39 1.86 66 -21.43 0.0131
2017-05-12 2017-03-31 13F MUELLER INDS INC COM Stock 624756102 2,139 66
2017-02-14 2016-12-31 13F MUELLER INDS INC COM Stock 624756102 2,100 2,100 84 0.0197
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.