Masco Corporation
MX ˙ BMV ˙ US5745991068
SecurityMX:MAS / Masco Corporation
InstitutionTectonic Advisors Llc
Latest Disclosed Ownership94,945 shares
Latest Disclosed Value $ 5,731,851
Tectonic Advisors Llc reports 7.43% increase in ownership of MAS / Masco Corporation

On April 17, 2026 - Tectonic Advisors Llc filed a 13F-HR form disclosing ownership of 94,945 shares of Masco Corporation (MX:MAS) valued at $5,731,851 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 88,381 shares of Masco Corporation. This represents a change in shares of 7.43% during the quarter.

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)
2026-04-17 2026-03-31 13F MASCO COM 574599106 94,945 6,564 7.43 5,732 2.19 0.2251
2026-01-23 2025-12-31 13F MASCO COM 574599106 88,381 2,716 3.17 5,609 -6.98 0.2957
2025-10-21 2025-09-30 13F MASCO COM 574599106 85,665 -1,465 -1.68 6,030 7.53 0.3293
2025-07-23 2025-06-30 13F MASCO COM 574599106 87,130 2,169 2.55 5,608 -5.09 0.3260
2025-05-02 2025-03-31 13F MASCO COM 574599106 84,961 -911 -1.06 5,908 -5.18 0.3693
2025-01-27 2024-12-31 13F MASCO COM 574599106 85,872 2,827 3.40 6,232 -10.60 0.4057
2024-10-23 2024-09-30 13F MASCO COM 574599106 83,045 11,983 16.86 6,971 47.14 0.4553
2024-08-02 2024-06-30 13F MASCO COM 574599106 71,062 4,739 7.15 4,738 -9.44 0.3414
2024-05-07 2024-03-31 13F MASCO COM 574599106 66,323 6,877 11.57 5,232 31.40 0.3990
2024-01-17 2023-12-31 13F MASCO COM 574599106 59,446 -6,153 -9.38 3,982 13.55 0.3333
2023-10-24 2023-09-30 13F MASCO COM 574599106 65,599 6,497 10.99 3,506 3.39 0.3287
2023-07-14 2023-06-30 13F MASCO COM 574599106 59,102 3,431 6.16 3,391 22.55 0.4176
2023-04-26 2023-03-31 13F MASCO COM 574599106 55,671 4,874 9.60 2,768 16.75 0.3786
2023-02-14 2022-12-31 13F MASCO COM 574599106 50,797 3,691 7.84 2,371 7.78 0.3675
2022-11-08 2022-09-30 13F MASCO COM 574599106 47,106 732 1.58 2,199 -6.31 0.4057
2022-08-11 2022-06-30 13F MASCO COM 574599106 46,374 4,508 10.77 2,347 9.93 0.4287
2022-05-09 2022-03-31 13F MASCO COM 574599106 41,866 5,209 14.21 2,135 -17.06 0.3674
2022-02-02 2021-12-31 13F MASCO COM 574599106 36,657 215 0.59 2,574 27.17 0.4610
2021-11-02 2021-09-30 13F MASCO COM 574599106 36,442 3,634 11.08 2,024 4.71 0.3973
2021-07-22 2021-06-30 13F MASCO COM 574599106 32,808 5,409 19.74 1,933 17.79 0.3986
2021-05-18 2021-03-31 13F MASCO COM 574599106 27,399 3,617 15.21 1,641 25.65 0.4077
2021-05-17 2020-12-31 13F MASCO COM 574599106 23,782 23,782 1,306 0.3569
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.