SEC 13F Intelligence

Mechanics Bank Trust Department / COST

Mechanics Bank Trust Department’s Costco Wholesale Corporation Position

Does Mechanics Bank Trust Department own Costco Wholesale Corporation (COST)? Yes — 16.2K shares worth $15M (+1.88% of its 13F portfolio) as of Q2 2026, down from 16.3K shares the prior filed quarter.

Position Value
$15M
Q2 2026
Shares
16.2K
% of Portfolio
+1.88%
Quarters Held
31
currently held

Position History COST

Reported value by quarter
Q4 ’18: $6MQ4 ’18Q1 ’19: $7MQ2 ’19: $7MQ3 ’19: $8MQ4 ’19: $8MQ4 ’19Q1 ’20: $8MQ2 ’20: $8MQ3 ’20: $9MQ4 ’20: $10MQ4 ’20Q1 ’21: $9MQ2 ’21: $10MQ3 ’21: $11MQ4 ’21: $13MQ4 ’21Q1 ’22: $13MQ2 ’22: $11MQ3 ’22: $11MQ4 ’22: $10MQ4 ’22Q1 ’23: $11MQ2 ’23: $12MQ3 ’23: $12MQ4 ’23: $14MQ4 ’23Q1 ’24: $15MQ2 ’24: $17MQ3 ’24: $18MQ4 ’24: $18MQ4 ’24Q1 ’25: $18MQ2 ’25: $17MQ3 ’25: $15MQ4 ’25: $14MQ4 ’25Q1 ’26: $16MQ2 ’26: $15Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q2 202616.2K$15M+1.88%
Q1 202616.3K$16M+2.24%
Q4 202516.4K$14M+1.85%
Q3 202516.3K$15M+2.12%
Q2 202517.0K$17M+2.41%
Q1 202518.7K$18M+2.41%
Q4 202419.6K$18M+2.39%
Q3 202419.9K$18M+2.35%
Q2 202420.2K$17M+2.46%
Q1 202420.7K$15M+2.23%
Q4 202321.3K$14M+2.19%
Q3 202321.9K$12M+2.06%
Q2 202322.3K$12M+1.91%
Q1 202322.3K$11M+1.87%
Q4 202222.8K$10M+1.80%
Q3 202222.7K$11M+2.03%
Q2 202223.1K$11M+1.98%
Q1 202223.1K$13M+2.06%
Q4 202123.6K$13M+1.98%
Q3 202124.2K$11M+1.76%
Q2 202124.9K$10M+1.62%
Q1 202126.4K$9M+1.60%
Q4 202025.8K$10M+1.75%
Q3 202026.0K$9M+1.83%
Q2 202026.9K$8M+1.71%
Q1 202026.8K$8M+1.87%
Q4 201927.4K$8M+1.58%
Q3 201928.1K$8M+1.62%
Q2 201927.6K$7M+1.65%
Q1 201929.2K$7M+1.61%
Q4 201829.9K$6M+1.54%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Mechanics Bank Trust Department’s full portfolio or all institutional holders of COST.