Question 1

How many shares of COST does Mariner, LLC own?

Accepted Answer

As of 2026-Q1, Mariner, LLC holds 437,088 shares of COST (COSTCO WHOLESALE CORPORATION).

Question 2

What is Mariner, LLC's COST position worth?

Accepted Answer

As of 2026-Q1, Mariner, LLC's COST position is worth $435.5M.

Question 3

Is Mariner, LLC buying or selling COST?

Accepted Answer

In 2026-Q1, Mariner, LLC increased their COST position (+10.3% change in shares).

Question 4

When did Mariner, LLC first buy COST?

Accepted Answer

Based on available 13F filings, Mariner, LLC first reported a position in COST in 2024-Q2. They have held the position across 30 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Increased	437,088	+10.3%	$435.5M	0.5%	$1,007.77	49
2025-Q4	Decreased	396,333	-0.9%	$341.8M	0.4%	$864.47	0
2025-Q3	Increased	399,894	+1.5%	$370.1M	0.5%	$914.33	38
2025-Q2	Increased	393,957	+10.3%	$390M	0.6%	$981.05	48
2025-Q1	Increased	357,112	+0.3%	$337.7M	0.6%	$924.59	44
2024-Q4	Increased	356,151	+2.6%	$326.3M	0.5%	$916.17	45
2024-Q3	Decreased	347,119	-5.0%	$307.7M	0.5%	$878.65	0
2024-Q2	Increased	365,543	+2.2%	$310.7M	0.6%	$842.10	45

COSTShowing 8 of 30 quarters

COST
Showing 8 of 30 quarters