Masco Corporation
US ˙ NYSE ˙ US5745991068

SecurityMAS / Masco Corporation
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership27,724 shares
Latest Disclosed Value $ 1,674,654
Wiley Bros.-aintree Capital, Llc reports 26.49% increase in ownership of MAS / Masco Corporation

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 27,724 shares of Masco Corporation (US:MAS) valued at $1,673,698 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 21,918 shares of Masco Corporation. This represents a change in shares of 26.49% during the quarter. The current value of the position is $1,928,481 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)
2026-05-15 2026-03-31 13F MASCO COM 574599106 27,724 5,806 26.49 1,675 21.57 0.0083
2026-02-17 2025-12-31 13F MASCO COM 574599106 21,918 1,535 7.53 1,377 -3.77 0.0072
2025-11-14 2025-09-30 13F MASCO COM 574599106 20,383 2,857 16.30 1,432 27.09 0.0092
2025-08-14 2025-06-30 13F MASCO COM 574599106 17,526 10,426 146.85 1,127 131.69 0.0086
2025-05-15 2025-03-31 13F MASCO COM 574599106 7,100 161 2.32 487 -2.80 0.0052
2025-02-14 2024-12-31 13F MASCO COM 574599106 6,939 931 15.50 501 -0.99 0.0060
2024-11-14 2024-09-30 13F MASCO COM 574599106 6,008 2,474 70.01 506 114.89 0.0098
2024-07-24 2024-06-30 13F MASCO COM 574599106 3,534 3,534 236 0.0103
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.