William Blair & Company’s Masco MAS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $474K | Buy |
7,854
+1,521
| +24% | +$103K | ﹤0.01% | 1173 |
|
|
2025
Q4 | $402K | Sell |
6,333
-366
| -5% | -$23.8K | ﹤0.01% | 1212 |
|
|
2025
Q3 | $472K | Sell |
6,699
-1,510
| -18% | -$106K | ﹤0.01% | 1136 |
|
|
2025
Q2 | $528K | Buy |
8,209
+1,057
| +15% | +$66.6K | ﹤0.01% | 1075 |
|
|
2025
Q1 | $497K | Sell |
7,152
-3,754
| -34% | -$281K | ﹤0.01% | 1084 |
|
|
2024
Q4 | $791K | Buy |
10,906
+1,174
| +12% | +$93.9K | ﹤0.01% | 972 |
|
|
2024
Q3 | $817K | Sell |
9,732
-98
| -1% | -$7.43K | ﹤0.01% | 960 |
|
|
2024
Q2 | $655K | Buy |
9,830
+314
| +3% | +$22.1K | ﹤0.01% | 1015 |
|
|
2024
Q1 | $751K | Buy |
9,516
+165
| +2% | +$11.9K | ﹤0.01% | 966 |
|
|
2023
Q4 | $626K | Sell |
9,351
-2,273
| -20% | -$132K | ﹤0.01% | 1015 |
|
|
2023
Q3 | $621K | Sell |
11,624
-2,788
| -19% | -$161K | ﹤0.01% | 987 |
|
|
2023
Q2 | $827K | Buy |
14,412
+2,264
| +19% | +$118K | ﹤0.01% | 907 |
|
|
2023
Q1 | $604K | Buy |
12,148
+5,905
| +95% | +$304K | ﹤0.01% | 977 |
|
|
2022
Q4 | $291K | Sell |
6,243
-231
| -4% | -$11.1K | ﹤0.01% | 1243 |
|
|
2022
Q3 | $302K | Sell |
6,474
-2,911
| -31% | -$152K | ﹤0.01% | 1228 |
|
|
2022
Q2 | $475K | Buy |
9,385
+1,409
| +18% | +$74.5K | ﹤0.01% | 1083 |
|
|
2022
Q1 | $407K | Sell |
7,976
-349
| -4% | -$20.7K | ﹤0.01% | 1240 |
|
|
2021
Q4 | $585K | Buy |
8,325
+299
| +4% | +$19.3K | ﹤0.01% | 1156 |
|
|
2021
Q3 | $446K | Buy |
8,026
+2,706
| +51% | +$160K | ﹤0.01% | 1190 |
|
|
2021
Q2 | $313K | Sell |
5,320
-222
| -4% | -$13.7K | ﹤0.01% | 1329 |
|
|
2021
Q1 | $332K | Sell |
5,542
-532
| -9% | -$29.7K | ﹤0.01% | 1292 |
|
|
2020
Q4 | $334K | Buy |
6,074
+9
| +0.1% | +$496 | ﹤0.01% | 1214 |
|
|
2020
Q3 | $334K | Sell |
6,065
-772
| -11% | -$43.2K | ﹤0.01% | 1098 |
|
|
2020
Q2 | $343K | Buy |
6,837
+691
| +11% | +$30K | ﹤0.01% | 1042 |
|
|
2020
Q1 | $212K | Sell |
6,146
-431
| -7% | -$18.8K | ﹤0.01% | 1148 |
|
|
2019
Q4 | $316K | Buy |
+6,577
| New | +$299K | ﹤0.01% | 1155 |
|
|
2017
Q3 | – | Sell |
-60,787
| Closed | -$2.32M | – | 1446 |
|
|
2017
Q2 | $2.32M | Sell |
60,787
-96,439
| -61% | -$3.53M | 0.02% | 533 |
|
|
2017
Q1 | $5.32M | Buy |
157,226
+1,775
| +1% | +$59.3K | 0.04% | 307 |
|
|
2016
Q4 | $4.92M | Buy |
155,451
+91,725
| +144% | +$2.94M | 0.04% | 307 |
|
|
2016
Q3 | $2.19M | Sell |
63,726
-2,654
| -4% | -$91.8K | 0.02% | 478 |
|
|
2016
Q2 | $2.05M | Buy |
66,380
+2,740
| +4% | +$86.4K | 0.02% | 475 |
|
|
2016
Q1 | $2M | Buy |
+63,640
| New | +$1.75M | 0.02% | 452 |
|
|
2014
Q3 | – | Sell |
-76,114
| Closed | -$1.49M | – | 2141 |
|
|
2014
Q2 | $1.49M | Buy |
76,114
+15,374
| +25% | +$290K | ﹤0.01% | 1325 |
|
|
2014
Q1 | $1.19M | Sell |
60,740
-971
| -2% | -$19.1K | ﹤0.01% | 1365 |
|
|
2013
Q4 | $1.24M | Buy |
+61,711
| New | +$1.15M | ﹤0.01% | 1325 |
|
Other funds holding MAS
VCM
VPM
William Blair & Company's MAS Position: Q1 2026 in Review
William Blair & Company increased its Masco (MAS) stake by 24% in Q1 2026, buying an estimated $103K and bringing the position to 7,854 shares worth $474K. The position accounts for ﹤0.01% of the portfolio, ranked #1173.
William Blair & Company first reported a position in MAS in Q4 2013 and has held it in 35 quarters since. The position peaked at $5.32M in Q1 2017. 834 funds tracked by Wall St. Rank hold MAS as of Q1 2026.
- William Blair & Company held 7,854 shares of Masco worth $474K as of Q1 2026.
- William Blair & Company bought 1,521 Masco shares in Q1 2026, an estimated $103K.
- Masco made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1173 holding.
- William Blair & Company first reported a position in Masco in Q4 2013 and has held it in 35 quarters since.
- William Blair & Company's Masco position peaked at $5.32M in Q1 2017.
- 834 funds tracked by Wall St. Rank held Masco as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.