Masco Corporation
MX ˙ BMV ˙ US5745991068
SecurityMX:MAS / Masco Corporation
InstitutionAmalgamated Bank
Latest Disclosed Ownership37,880 shares
Latest Disclosed Value $ 2,287
Amalgamated Bank reports 4.80% decrease in ownership of MAS / Masco Corporation

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 37,880 shares of Masco Corporation (MX:MAS) valued at $2,287 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 39,792 shares of Masco Corporation. This represents a change in shares of -4.80% 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)
2026-05-08 2026-03-31 13F MASCO COM 574599106 37,880 -1,912 -4.80 2 0.00 0.0175
2026-02-05 2025-12-31 13F MASCO COM 574599106 39,792 -898 -2.21 3 0.00 0.0182
2025-10-29 2025-09-30 13F MASCO COM 574599106 40,690 -917 -2.20 3 0.00 0.0205
2025-08-04 2025-06-30 13F MASCO COM 574599106 41,607 -382 -0.91 3 0.00 0.0207
2025-04-25 2025-03-31 13F MASCO COM 574599106 41,989 603 1.46 3 -33.33 0.0250
2025-02-04 2024-12-31 13F MASCO COM 574599106 41,386 -3,336 -7.46 3 0.00 0.0246
2024-10-30 2024-09-30 13F MASCO COM 574599106 44,722 -14,227 -24.13 4 0.00 0.0309
2024-08-12 2024-06-30 13F MASCO COM 574599106 58,949 -3,168 -5.10 4 -25.00 0.0335
2024-04-23 2024-03-31 13F MASCO COM 574599106 62,117 -4,478 -6.72 5 0.00 0.0419
2024-02-06 2023-12-31 13F MASCO COM 574599106 66,595 4,289 6.88 4 33.33 0.0356
2023-11-08 2023-09-30 13F MASCO COM 574599106 62,306 2,318 3.86 3 0.00 0.0284
2023-08-11 2023-06-30 13F MASCO COM 574599106 59,988 1,230 2.09 3 50.00 0.0279
2023-05-02 2023-03-31 13F MASCO COM 574599106 58,758 -446 -0.75 3 0.00 0.0249
2023-02-10 2022-12-31 13F MASCO COM 574599106 59,204 -3,135 -5.03 3 -99.93 0.0246
2022-11-09 2022-09-30 13F MASCO COM 574599106 62,339 -2,595 -4.00 2,911 -11.41 0.0281
2022-08-15 2022-06-30 13F MASCO COM 574599106 64,934 -260 -0.40 3,286 -1.17 0.0306
2022-08-25 2022-03-31 13F/A-1 MASCO COM 574599106 65,194 -4,784 -6.84 3,325 -32.34 0.0258
2022-06-30 2022-03-31 13F MASCO COM 574599106 65,194 -4,784 3,325 0.0264
2022-02-15 2021-12-31 13F/A-1 MASCO COM 574599106 69,978 563 0.81 4,914 27.44 0.0363
2022-02-15 2021-12-31 13F MASCO COM 574599106 69,978 563 4,914 0.0363
2021-10-29 2021-09-30 13F MASCO COM 574599106 69,415 -4,724 -6.37 3,856 -11.72 0.0326
2021-08-16 2021-06-30 13F MASCO COM 574599106 74,139 60,121 428.88 4,368 420.00 0.0350
2021-05-13 2021-03-31 13F MASCO COM 574599106 14,018 -848 -5.70 840 2.82 0.0315
2021-02-12 2020-12-31 13F MASCO COM 574599106 14,866 -28 -0.19 817 -0.49 0.0310
2020-10-30 2020-09-30 13F MASCO COM 574599106 14,894 -352 -2.31 821 7.18 0.0357
2020-08-10 2020-06-30 13F MASCO COM 574599106 15,246 -26,547 -63.52 766 -46.99 0.0354
2020-05-13 2020-03-31 13F MASCO COM 574599106 41,793 -1,738 -3.99 1,445 -30.83 0.0353
2020-02-13 2019-12-31 13F MASCO COM 574599106 43,531 2,193 5.31 2,089 21.24 0.0384
2019-11-13 2019-09-30 13F MASCO COM 574599106 41,338 -822 -1.95 1,723 4.17 0.0362
2019-08-14 2019-06-30 13F MASCO COM 574599106 42,160 -1,555 -3.56 1,654 -3.73 0.0386
2019-05-15 2019-03-31 13F MASCO COM 574599106 43,715 644 1.50 1,718 36.46 0.0416
2019-02-15 2018-12-31 13F MASCO COM 574599106 43,071 -1,303 -2.94 1,259 -22.48 0.0357
2018-11-14 2018-09-30 13F MASCO COM 574599106 44,374 -1,282 -2.81 1,624 -4.92 0.0402
2018-07-18 2018-06-30 13F MASCO COM 574599106 45,656 2,057 4.72 1,708 -3.12 0.0417
2018-05-22 2018-03-31 13F MASCO COM 574599106 43,599 2,755 6.75 1,763 -1.78 0.0468
2018-02-13 2017-12-31 13F MASCO COM 574599106 40,844 3,041 8.04 1,795 21.69 0.0486
2017-11-09 2017-09-30 13F MASCO COM 574599106 37,803 730 1.97 1,475 4.09 0.0459
2017-08-10 2017-06-30 13F MASCO COM 574599106 37,073 12,653 51.81 1,417 70.72 0.0464
2017-05-12 2017-03-31 13F MASCO COM 574599106 24,420 -6,538 -21.12 830 -15.22 0.0413
2017-02-14 2016-12-31 13F MASCO COM 574599106 30,958 6,223 25.16 979 15.31 0.0442
2016-11-15 2016-09-30 13F/A-1 MASCO COM 574599106 24,735 19 0.08 849 -5.03 0.0493
2016-11-14 2016-09-30 13F MASCO COM 574599106 8,097 278
2016-08-16 2016-06-30 13F MASCO COM 574599106 24,716 10,964 79.73 894 106.47 0.0517
2016-05-11 2016-03-31 13F MASCO COM 574599106 13,752 3,283 31.36 433 46.28 0.0422
2016-02-10 2015-12-31 13F MASCO COM 574599106 10,469 -2,729 -20.68 296 -10.84 0.0365
2015-11-04 2015-09-30 13F MASCO COM 574599106 13,198 455 3.57 332 -2.35 0.0348
2015-07-10 2015-06-30 13F MASCO COM 574599106 12,743 333 2.68 340 2.72 0.0334
2015-04-22 2015-03-31 13F MASCO COM 574599106 12,410 12,410 0.00 331 0.0404
2015-01-29 2014-12-31 13F MASCO COM 574599106 0 -10,963 -100.00 0 -100.00
2014-11-14 2014-09-30 13F MASCO COM 574599106 10,963 674 6.55 262 14.91 0.0390
2014-08-11 2014-06-30 13F MASCO COM 574599106 10,289 1,178 12.93 228 12.87 0.0344
2014-05-12 2014-03-31 13F MASCO COM 574599106 9,111 -182 -1.96 202 -4.72 0.0348
2014-02-13 2013-12-31 13F MASCO COM 574599106 9,293 9,293 212 0.0360
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.