SEC 13F Intelligence

Mason Street Advisors, LLC / COST

Mason Street Advisors, LLC’s Costco Wholesale Corporation Position

Does Mason Street Advisors, LLC own Costco Wholesale Corporation (COST)? Not currently — the last reported position was 60.9K shares worth $23M in Q4 2020; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$23M
Q4 2020
Shares
60.9K
% of Portfolio
+0.39%
Quarters Held
9
position exited

Position History COST

Reported value by quarter
Q4 ’18: $13MQ4 ’18Q1 ’19: $15MQ2 ’19: $17MQ2 ’19Q3 ’19: $18MQ4 ’19: $19MQ4 ’19Q1 ’20: $18MQ2 ’20: $19MQ2 ’20Q3 ’20: $22MQ4 ’20: $23MQ4 ’20filingsflow.com
QuarterSharesValue% of Portfolio
Q4 202060.9K$23M+0.39%
Q3 202062.0K$22M+0.43%
Q2 202063.0K$19M+0.39%
Q1 202063.0K$18M+0.42%
Q4 201963.0K$19M+0.36%
Q3 201962.7K$18M+0.38%
Q2 201962.7K$17M+0.35%
Q1 201962.8K$15M+0.31%
Q4 201861.8K$13M+0.31%

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