William Blair Investment Management’s Glaukos GKOS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$117M Buy
1,136,095
+390,805
+52% +$40.4M 0.31% 87
2025
Q1
$73.4M Sell
745,290
-64,299
-8% -$6.33M 0.21% 121
2024
Q4
$121M Buy
+809,589
New +$121M 0.3% 101
2020
Q1
Sell
-1,976,525
Closed -$108M 358
2019
Q4
$108M Sell
1,976,525
-416,534
-17% -$22.7M 0.43% 79
2019
Q3
$150M Sell
2,393,059
-19,963
-0.8% -$1.25M 0.64% 51
2019
Q2
$182M Sell
2,413,022
-52,410
-2% -$3.95M 0.76% 40
2019
Q1
$193M Buy
2,465,432
+9,401
+0.4% +$737K 0.81% 34
2018
Q4
$138M Buy
2,456,031
+13,089
+0.5% +$735K 0.69% 42
2018
Q3
$159M Sell
2,442,942
-248,266
-9% -$16.1M 0.55% 56
2018
Q2
$109M Sell
2,691,208
-77,837
-3% -$3.16M 0.41% 78
2018
Q1
$85.4M Buy
2,769,045
+789,085
+40% +$24.3M 0.33% 97
2017
Q4
$50.8M Buy
1,979,960
+137,969
+7% +$3.54M 0.2% 142
2017
Q3
$60.8M Sell
1,841,991
-322,773
-15% -$10.7M 0.22% 131
2017
Q2
$89.8M Buy
2,164,764
+100,320
+5% +$4.16M 0.33% 101
2017
Q1
$106M Buy
2,064,444
+104,670
+5% +$5.37M 0.4% 80
2016
Q4
$67.2M Buy
1,959,774
+883,914
+82% +$30.3M 0.27% 121
2016
Q3
$40.6M Buy
1,075,860
+937,703
+679% +$35.4M 0.15% 163
2016
Q2
$4.03M Buy
+138,157
New +$4.03M 0.02% 369