Position in MAS
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$271,183,306
-$92,521,436 QoQ
Shares Held
4,492,021
-21.6% QoQ
Ownership
2.23%
of shares outstanding
% of Portfolio
0.29%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 87%
Shared 0%
None 13%
Common Shares in MAS Over Time
Shares Held
Position Value (USD)
Position in Building Products & Equipment
Industrials · as of Mar 31, 2026Boston Partners holds $640,843,833 across 7 Building Products & Equipment names. MAS ranks #1 (42.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MAS |
Masco Corp /De/
This page
|
4,492,021 | $271,183,306 | |
| 2 | BLDR |
Builders FirstSource, Inc.
|
1,602,360 | $131,922,297 | |
| 3 | CSL |
Carlisle Companies Inc
|
334,261 | $111,516,153 | |
| 4 | LPX |
Louisiana-Pacific Corp
|
1,317,315 | $95,834,665 | |
| 5 | ROCK |
Gibraltar Industries, Inc.
|
686,625 | $27,375,737 | |
| 6 | CARR |
CARRIER GLOBAL Corp
|
41,361 | $2,329,037 | |
| 7 | NPKI |
NPK International Inc.
|
47,111 | $682,638 |
All Filings in MAS
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $271,183,306 | 4,492,021 | Shares | Other | 2026-05-11 | |
| 2025-12-31 | $363,704,742 | 5,731,244 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $411,793,463 | 5,850,170 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $372,744,864 | 5,791,561 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $346,356,486 | 4,980,680 | Shares | Other | 2025-05-13 | |
| 2024-12-31 | $564,096,333 | 7,773,134 | Shares | Other | 2025-02-11 | |
| 2024-09-30 | $754,165,811 | 8,984,582 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $604,631,894 | 9,069,025 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $625,803,233 | 7,933,611 | Shares | Other | 2024-05-28 | |
| 2023-12-31 | $614,900,778 | 9,180,364 | Shares | Defined | 2024-02-07 | |
| 2023-09-30 | $482,189,125 | 9,021,312 | Shares | Other | 2023-11-08 | |
| 2023-06-30 | $497,011,213 | 8,661,750 | Shares | Defined | 2023-08-10 | |
| 2023-03-31 | $433,070,446 | 8,710,186 | Shares | Other | 2023-05-09 | |
| 2022-12-31 | $469,034,945 | 10,050,031 | Shares | Other | 2023-02-08 | |
| 2022-09-30 | $385,829,023 | 8,263,633 | Shares | Other | 2022-11-09 | |
| 2022-06-30 | $218,947,818 | 4,327,032 | Shares | Other | 2022-08-10 | |
| 2022-03-31 | $194,437,704 | 3,812,504 | Shares | Defined | 2022-05-10 | |
| 2021-12-31 | $227,418,002 | 3,238,650 | Shares | Defined | 2022-02-04 | |
| 2021-09-30 | $184,324,619 | 3,318,175 | Shares | Defined | 2021-11-05 | |
| 2021-06-30 | $189,446,547 | 3,215,864 | Shares | Defined | 2021-08-12 | |
| 2021-03-31 | $187,992,255 | 3,138,435 | Shares | Other | 2021-05-10 | |
| 2020-12-31 | $190,955,739 | 3,476,347 | Shares | Other | 2021-02-10 | |
| 2020-09-30 | $189,358,537 | 3,434,764 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $172,524,219 | 3,436,053 | Shares | Other | 2020-08-12 | |
| 2020-03-31 | $123,428,416 | 3,570,391 | Shares | Other | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||