SEC 13F Intelligence

William Blair Investment Management, LLC / SE

William Blair Investment Management, LLC’s Sea Ltd Position

Does William Blair Investment Management, LLC own Sea Ltd (SE)? Not currently — the last reported position was 2.37M shares worth $302M in Q4 2025; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$302M
Q4 2025
Shares
2.37M
% of Portfolio
+0.84%
Quarters Held
19
position exited

Position History SE

Reported value by quarter
Q2 ’19: $36MQ2 ’19Q3 ’19: $33MQ4 ’19: $23MQ1 ’20: $63MQ1 ’20Q2 ’20: $149MQ3 ’20: $330MQ4 ’20: $415MQ4 ’20Q1 ’21: $323MQ2 ’21: $406MQ3 ’21: $511MQ3 ’21Q4 ’21: $294MQ1 ’22: $35MQ2 ’22: $20MQ2 ’22Q3 ’24: $159MQ4 ’24: $237MQ1 ’25: $480MQ1 ’25Q2 ’25: $574MQ3 ’25: $619MQ4 ’25: $302MQ4 ’25filingsflow.com
QuarterSharesValue% of Portfolio
Q4 20252.37M$302M+0.84%
Q3 20253.46M$619M+1.60%
Q2 20253.59M$574M+1.52%
Q1 20253.68M$480M+1.35%
Q4 20242.23M$237M+0.58%
Q3 20241.69M$159M+0.39%
Q2 2022297.4K$20M+0.07%
Q1 2022296.3K$35M+0.11%
Q4 20211.32M$294M+0.80%
Q3 20211.60M$511M+1.44%
Q2 20211.48M$406M+1.28%
Q1 20211.45M$323M+1.05%
Q4 20202.08M$415M+1.38%
Q3 20202.14M$330M+1.29%
Q2 20201.39M$149M+0.61%
Q1 20201.43M$63M+0.31%
Q4 2019560.6K$23M+0.09%
Q3 20191.08M$33M+0.14%
Q2 20191.08M$36M+0.15%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See William Blair Investment Management, LLC’s full portfolio or all institutional holders of SE.