SEC 13F Intelligence

Birch Hill Investment Advisors LLC / WST

Birch Hill Investment Advisors LLC’s West Pharmaceutical Svsc Inc Position

Does Birch Hill Investment Advisors LLC own West Pharmaceutical Svsc Inc (WST)? Yes — 161.2K shares worth $40M (+1.81% of its 13F portfolio) as of Q1 2026, up from 152.1K shares the prior filed quarter.

Position Value
$40M
Q1 2026
Shares
161.2K
% of Portfolio
+1.81%
Quarters Held
4
currently held

Position History WST

Reported value by quarter
Q2 ’25: $16MQ2 ’25Q3 ’25: $36MQ3 ’25Q4 ’25: $42MQ4 ’25Q1 ’26: $40MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026161.2K$40M+1.81%
Q4 2025152.1K$42M+1.75%
Q3 2025136.5K$36M+1.51%
Q2 202572.8K$16M+0.71%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Birch Hill Investment Advisors LLC’s full portfolio or all institutional holders of WST.