SEC 13F Intelligence

William Blair Investment Management, LLC / META

William Blair Investment Management, LLC’s Meta Platforms Inc Position

Does William Blair Investment Management, LLC own Meta Platforms Inc (META)? Yes — 1.01M shares worth $580M (+1.92% of its 13F portfolio) as of Q1 2026, down from 1.19M shares the prior filed quarter.

Position Value
$580M
Q1 2026
Shares
1.01M
% of Portfolio
+1.92%
Quarters Held
30
currently held

Position History META

Reported value by quarter
Q4 ’18: $41MQ4 ’18Q1 ’19: $53MQ2 ’19: $70MQ3 ’19: $65MQ4 ’19: $74MQ4 ’19Q1 ’20: $74MQ2 ’20: $100MQ3 ’20: $95MQ4 ’20: $78MQ4 ’20Q1 ’21: $80MQ2 ’21: $97MQ3 ’21: $93MQ4 ’21: $107MQ4 ’21Q1 ’22: $71MQ2 ’22: $49MQ3 ’22: $40MQ4 ’22: $26MQ4 ’22Q1 ’23: $44MQ2 ’23: $53MQ3 ’23: $54MQ4 ’23: $71MQ4 ’23Q1 ’24: $99MQ2 ’24: $80MQ3 ’24: $905MQ4 ’24: $974MQ4 ’24Q1 ’25: $906MQ2 ’25: $1.1BQ3 ’25: $871MQ4 ’25: $783MQ4 ’25Q1 ’26: $580Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20261.01M$580M+1.92%
Q4 20251.19M$783M+2.19%
Q3 20251.19M$871M+2.25%
Q2 20251.43M$1.1B+2.80%
Q1 20251.57M$906M+2.54%
Q4 20241.66M$974M+2.38%
Q3 20241.58M$905M+2.23%
Q2 2024159.0K$80M+0.21%
Q1 2024203.9K$99M+0.26%
Q4 2023201.6K$71M+0.21%
Q3 2023180.0K$54M+0.18%
Q2 2023184.2K$53M+0.17%
Q1 2023208.0K$44M+0.15%
Q4 2022215.4K$26M+0.10%
Q3 2022294.7K$40M+0.16%
Q2 2022301.9K$49M+0.18%
Q1 2022321.0K$71M+0.21%
Q4 2021317.0K$107M+0.29%
Q3 2021275.0K$93M+0.26%
Q2 2021278.2K$97M+0.30%
Q1 2021272.2K$80M+0.26%
Q4 2020286.0K$78M+0.26%
Q3 2020362.1K$95M+0.37%
Q2 2020440.4K$100M+0.41%
Q1 2020443.4K$74M+0.36%
Q4 2019360.1K$74M+0.29%
Q3 2019362.9K$65M+0.28%
Q2 2019361.3K$70M+0.29%
Q1 2019317.6K$53M+0.22%
Q4 2018316.5K$41M+0.21%

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 META.