Masco Corporation
US ˙ NYSE ˙ US5745991068

SecurityMAS / Masco Corporation
InstitutionNorthern Trust Corp
Latest Disclosed Ownership3,280,473 shares
Latest Disclosed Value $ 198,042,155
Northern Trust Corp reports 3.47% decrease in ownership of MAS / Masco Corporation

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 3,280,473 shares of Masco Corporation (US:MAS) valued at $198,042,155 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,398,476 shares of Masco Corporation. This represents a change in shares of -3.47% during the quarter. The current value of the position is $228,189,702 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)
2026-05-14 2026-03-31 13F MASCO COM 574599106 3,280,473 -118,003 -3.47 198,042 -8.17 0.0054
2026-02-17 2025-12-31 13F MASCO COM 574599106 3,398,476 4,348 0.13 215,667 -9.73 0.0057
2025-11-14 2025-09-30 13F MASCO COM 574599106 3,394,128 -98,080 -2.81 238,913 6.30 0.0070
2025-08-13 2025-06-30 13F MASCO COM 574599106 3,492,208 -293,719 -7.76 224,759 -14.63 0.0309
2025-05-13 2025-03-31 13F MASCO COM 574599106 3,785,927 -114,716 -2.94 263,273 -6.99 0.0391
2025-02-14 2024-12-31 13F MASCO COM 574599106 3,900,643 337,164 9.46 283,070 -5.37 0.0401
2024-11-13 2024-09-30 13F MASCO COM 574599106 3,563,479 -157,738 -4.24 299,118 20.57 0.0490
2024-08-14 2024-06-30 13F MASCO COM 574599106 3,721,217 74,543 2.04 248,094 -13.75 0.0418
2024-05-14 2024-03-31 13F MASCO COM 574599106 3,646,674 -34,756 -0.94 287,650 16.65 0.0497
2024-02-13 2023-12-31 13F MASCO COM 574599106 3,681,430 -253,556 -6.44 246,582 17.24 0.0446
2023-11-13 2023-09-30 13F MASCO COM 574599106 3,934,986 145,472 3.84 210,325 -3.27 0.0407
2023-08-11 2023-06-30 13F MASCO COM 574599106 3,789,514 -209,758 -5.24 217,442 9.35 0.0418
2023-05-15 2023-03-31 13F MASCO COM 574599106 3,999,272 -90,592 -2.22 198,844 4.18 0.0394
2023-02-13 2022-12-31 13F MASCO COM 574599106 4,089,864 -7,170 -0.18 190,874 -0.22 0.0401
2022-11-14 2022-09-30 13F MASCO COM 574599106 4,097,034 -153,101 -3.60 191,290 -11.05 0.0437
2022-08-12 2022-06-30 13F MASCO COM 574599106 4,250,135 36,232 0.86 215,057 0.07 0.0461
2022-05-13 2022-03-31 13F MASCO COM 574599106 4,213,903 -62,702 -1.47 214,910 -28.44 0.0378
2022-02-08 2021-12-31 13F MASCO COM 574599106 4,276,605 -84,182 -1.93 300,304 23.97 0.0492
2021-11-15 2021-09-30 13F MASCO COM 574599106 4,360,787 -2,313,793 -34.67 242,242 -38.39 0.0429
2021-08-13 2021-06-30 13F MASCO COM 574599106 6,674,580 -151,177 -2.21 393,199 -3.83 0.0693
2021-05-12 2021-03-31 13F MASCO COM 574599106 6,825,757 -282,349 -3.97 408,862 4.72 0.0760
2021-02-11 2020-12-31 13F MASCO COM 574599106 7,108,106 39,715 0.56 390,448 0.20 0.0761
2020-11-16 2020-09-30 13F MASCO COM 574599106 7,068,391 -157,369 -2.18 389,681 7.41 0.0854
2020-08-14 2020-06-30 13F MASCO COM 574599106 7,225,760 -267,320 -3.57 362,806 40.06 0.0860
2020-05-14 2020-03-31 13F MASCO COM 574599106 7,493,080 -18,937 -0.25 259,036 -28.15 0.0744
2020-02-14 2019-12-31 13F MASCO COM 574599106 7,512,017 -46,330 -0.61 360,501 14.43 0.0807
2019-11-13 2019-09-30 13F MASCO COM 574599106 7,558,347 234,173 3.20 315,032 9.61 0.0754
2019-08-13 2019-06-30 13F MASCO COM 574599106 7,324,174 10,066 0.14 287,401 -0.04 0.0682
2019-05-13 2019-03-31 13F MASCO COM 574599106 7,314,108 24,690 0.34 287,517 34.89 0.0710
2019-02-12 2018-12-31 13F MASCO COM 574599106 7,289,418 -320,051 -4.21 213,143 -23.47 0.0598
2018-11-14 2018-09-30 13F MASCO COM 574599106 7,609,469 -262,909 -3.34 278,506 -5.46 0.0682
2018-09-18 2018-06-30 13F/A-1 MASCO COM 574599106 7,872,378 -10,729 -0.14 294,585 -7.59 0.0748
2018-08-14 2018-06-30 13F MASCO COM 574599106 7,893,999 10,892 295,394
2018-05-09 2018-03-31 13F MASCO COM 574599106 7,883,107 -189,445 -2.35 318,793 -10.13 0.0829
2018-02-14 2017-12-31 13F MASCO COM 574599106 8,072,552 -47,733 -0.59 354,708 11.98 0.0898
2017-11-13 2017-09-30 13F MASCO COM 574599106 8,120,285 -126,141 -1.53 316,773 0.53 0.0826
2017-08-11 2017-06-30 13F MASCO COM 574599106 8,246,426 1,963,938 31.26 315,096 47.56 0.0881
2017-05-12 2017-03-31 13F MASCO COM 574599106 6,282,488 -133,337 -2.08 213,542 5.26 0.0616
2017-02-13 2016-12-31 13F MASCO COM 574599106 6,415,825 -324,544 -4.81 202,868 -12.28 0.0622
2016-11-09 2016-09-30 13F MASCO COM 574599106 6,740,369 262,651 4.05 231,262 15.39 0.0720
2016-08-12 2016-06-30 13F MASCO COM 574599106 6,477,718 -45,019 -0.69 200,420 -0.78 0.0651
2016-08-19 2016-03-31 13F/A-1 MASCO COM 574599106 6,522,737 1,785,947 37.70 201,989 50.68 0.0670
2016-05-13 2016-03-31 13F Masco COMM 574599106 6,522,718 205,139
2016-02-12 2015-12-31 13F Masco COMM 574599106 4,736,790 -272,063 -5.43 134,051 6.29 0.0444
2015-11-12 2015-09-30 13F Masco COMM 574599106 5,008,853 5,008,853 0.00 126,123 0.0421
2015-08-13 2015-06-30 13F Masco COMM 574599106 0 -4,518,324 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Masco COMM 574599106 4,518,324 -321,551 -6.64 120,638 -1.09 0.0363
2015-02-12 2014-12-31 13F Masco COM 574599106 4,839,875 -559,352 -10.36 121,965 -5.56 0.0368
2014-11-13 2014-09-30 13F Masco COMM 574599106 5,399,227 447,108 9.03 129,150 17.48 0.0406
2014-08-14 2014-06-30 13F MASCO com 574599106 4,952,119 -645,402 -11.53 109,938 -11.57 0.0343
2014-05-14 2014-03-31 13F MASCO COMM 574599106 5,597,521 429,275 8.31 124,321 5.64 0.0391
2014-02-21 2013-12-31 13F/A-1 MASCO COM 574599106 5,168,246 248,800 5.06 117,681 12.41 0.0377
2014-02-12 2013-12-31 13F MASCO COM 574599106 5,168,246 117,681
2013-11-13 2013-09-30 13F MASCO COM 574599106 4,919,446 -171,320 -3.37 104,687 5.51 0.0369
2013-08-09 2013-06-30 13F MASCO COM 574599106 5,090,766 5,090,766 99,219 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.