Masco Corporation
US ˙ NYSE ˙ US5745991068

SecurityMAS / Masco Corporation
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership124,184 shares
Latest Disclosed Value $ 7,497,144
Advisor Group Holdings, Inc. reports 14.95% increase in ownership of MAS / Masco Corporation

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 124,184 shares of Masco Corporation (US:MAS) valued at $7,496,988 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 108,034 shares of Masco Corporation. This represents a change in shares of 14.95% during the quarter. The current value of the position is $8,638,239 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 MASCO COM 574599106 124,184 16,150 14.95 7,497 9.35 0.0064
2026-02-17 2025-12-31 13F MASCO COM 574599106 108,034 28,826 36.39 6,856 20.09 0.0100
2025-11-14 2025-09-30 13F MASCO COM 574599106 79,208 49,691 168.35 5,710 199.37 0.0080
2025-09-04 2025-06-30 13F/A-1 ASCO COM 574599106 29,517 -1,055 -3.45 1,907 -10.30 0.0034
2025-08-13 2025-06-30 13F ASCO COM 574599106 25,917 -4,655 1,774 0.0021
2025-05-12 2025-03-31 13F MASCO COM 574599106 30,572 2,449 8.71 2,127 6.35 0.0047
2025-06-06 2024-12-31 13F/A-1 MASCO COM 574599106 28,123 455 1.64 1,999 -13.91 0.0045
2025-02-07 2024-12-31 13F MASCO COM 574599106 27,035 -633 2,045 0.0052
2024-11-13 2024-09-30 13F MASCO COM 574599106 27,668 -559 -1.98 2,323 23.38 0.0052
2024-08-13 2024-06-30 13F MASCO COM 574599106 28,227 -788 -2.72 1,882 -17.78 0.0044
2024-05-10 2024-03-31 13F MASCO COM 574599106 29,015 -62,101 -68.16 2,289 -62.48 0.0051
2024-02-12 2023-12-31 13F MASCO COM 574599106 91,116 -23,489 -20.50 6,101 -0.42 0.0107
2023-11-13 2023-09-30 13F MASCO COM 574599106 114,605 23,621 25.96 6,127 17.38 0.0091
2023-08-21 2023-06-30 13F/A-1 MASCO COM 574599106 90,984 -598 -0.65 5,221 14.83 0.0094
2023-08-10 2023-06-30 13F MASCO COM 574599106 91,942 360 5,220 0.0014
2023-05-12 2023-03-31 13F MASCO COM 574599106 91,582 7,526 8.95 4,546 15.82 0.0086
2023-02-10 2022-12-31 13F MASCO COM 574599106 84,056 9,285 12.42 3,925 12.37 0.0079
2022-11-14 2022-09-30 13F MASCO COM 574599106 74,771 -2,953 -3.80 3,493 -11.30 0.0080
2022-08-10 2022-06-30 13F MASCO COM 574599106 77,724 7,419 10.55 3,938 17.48 0.0087
2022-05-04 2022-03-31 13F MASCO COM 574599106 70,305 9,402 15.44 3,352 -21.54 0.0065
2022-02-03 2021-12-31 13F MASCO COM 574599106 60,903 -10,789 -15.05 4,272 7.18 0.0081
2021-11-05 2021-09-30 13F MASCO COM 574599106 71,692 -4,931 -6.44 3,986 -11.72 0.0083
2021-08-02 2021-06-30 13F MASCO COM 574599106 76,623 18,050 30.82 4,515 28.52 0.0098
2021-05-13 2021-03-31 13F MASCO COM 574599106 58,573 6,583 12.66 3,513 23.09 0.0085
2021-02-10 2020-12-31 13F MASCO COM 574599106 51,990 -416 -0.79 2,854 0.63 0.0076
2020-11-12 2020-09-30 13F MASCO COM 574599106 52,406 3,303 6.73 2,836 15.10 0.0085
2020-08-14 2020-06-30 13F MASCO COM 574599106 49,103 261 0.53 2,464 45.71 0.0083
2020-05-18 2020-03-31 13F MASCO COM 574599106 48,842 48,842 1,691 0.0069
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.