William Blair & Company’s Brookline Bancorp BRKL Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q3
Sell
-31,210
Closed -$329K 1854
2025
Q2
$329K Hold
31,210
﹤0.01% 1225
2025
Q1
$340K Hold
31,210
﹤0.01% 1208
2024
Q4
$368K Hold
31,210
﹤0.01% 1203
2024
Q3
$315K Buy
31,210
+9,000
+41% +$88.4K ﹤0.01% 1265
2024
Q2
$185K Hold
22,210
﹤0.01% 1432
2024
Q1
$221K Hold
22,210
﹤0.01% 1367
2023
Q4
$242K Hold
22,210
﹤0.01% 1333
2023
Q3
$202K Sell
22,210
-2,000
-8% -$19.3K ﹤0.01% 1384
2023
Q2
$212K Sell
24,210
-2,000
-8% -$18.2K ﹤0.01% 1389
2023
Q1
$275K Hold
26,210
﹤0.01% 1274
2022
Q4
$371K Hold
26,210
﹤0.01% 1140
2022
Q3
$305K Hold
26,210
﹤0.01% 1226
2022
Q2
$349K Hold
26,210
﹤0.01% 1206
2022
Q1
$415K Hold
26,210
﹤0.01% 1231
2021
Q4
$424K Hold
26,210
﹤0.01% 1279
2021
Q3
$400K Hold
26,210
﹤0.01% 1242
2021
Q2
$392K Hold
26,210
﹤0.01% 1247
2021
Q1
$393K Hold
26,210
﹤0.01% 1229
2020
Q4
$316K Hold
26,210
﹤0.01% 1244
2020
Q3
$227K Hold
26,210
﹤0.01% 1251
2020
Q2
$264K Sell
26,210
-7,746
-23% -$77.3K ﹤0.01% 1143
2020
Q1
$383K Sell
33,956
-1,000
-3% -$14.3K ﹤0.01% 949
2019
Q4
$575K Hold
34,956
﹤0.01% 945
2019
Q3
$515K Sell
34,956
-2,600
-7% -$37.7K ﹤0.01% 933
2019
Q2
$578K Hold
37,556
﹤0.01% 934
2019
Q1
$541K Sell
37,556
-1,600
-4% -$24K ﹤0.01% 941
2018
Q4
$541K Sell
39,156
-4,400
-10% -$66.4K ﹤0.01% 879
2018
Q3
$727K Buy
43,556
+9,500
+28% +$172K ﹤0.01% 840
2018
Q2
$633K Sell
34,056
-3,000
-8% -$52.7K ﹤0.01% 864
2018
Q1
$600K Sell
37,056
-1,600
-4% -$26.2K ﹤0.01% 864
2017
Q4
$607K Buy
38,656
+1,000
+3% +$15.6K ﹤0.01% 902
2017
Q3
$584K Buy
37,656
+12,000
+47% +$174K ﹤0.01% 885
2017
Q2
$375K Buy
+25,656
New +$372K ﹤0.01% 1084

Other funds holding BRKL

William Blair & Company's BRKL Position: Q3 2025 in Review

William Blair & Company sold out of Brookline Bancorp (BRKL) in Q3 2025, closing a stake of 31,210 shares — an estimated $329K sold.

William Blair & Company first reported a position in BRKL in Q2 2017 and held it in 33 quarters. The position peaked at $727K in Q3 2018. 3 funds tracked by Wall St. Rank hold BRKL as of Q3 2025.

  • William Blair & Company reported no remaining Brookline Bancorp position as of Q3 2025 after selling out during the quarter.
  • William Blair & Company sold 31,210 Brookline Bancorp shares in Q3 2025, an estimated $329K.
  • William Blair & Company first reported a position in Brookline Bancorp in Q2 2017 and held it in 33 quarters.
  • William Blair & Company's Brookline Bancorp position peaked at $727K in Q3 2018.
  • 3 funds tracked by Wall St. Rank held Brookline Bancorp as of Q3 2025.

Based on William Blair & Company's 13F filing for Q3 2025, filed 12 Nov 2025.