COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

Magnetar Financial LLC's Holding History (CIK: 0001352851)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,170 Value ($000) $1,009 Avg Close $905.73 Range $844.06 - $962.64

Q4 2021

Shares 1,961 Value ($000) $1,113 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 8,027 Value ($000) $3,607 Avg Close $418.22 Range $374.22 - $447.84

Q3 2020

Shares 4,954 Value ($000) $1,759 Avg Close $309.06 Range $276.17 - $334.67

Q4 2019

Shares 5,404 Value ($000) $1,588 Avg Close $271.52 Range $256.90 - $280.77

Q2 2018

Shares 976 Value ($000) $204 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 2,595 Value ($000) $489 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 5,897 Value ($000) $1,098 Avg Close $154.45 Range $137.67 - $175.03

Q3 2016

Shares 13,199 Value ($000) $2,013 Avg Close $136.95 Range $124.90 - $143.90

Q2 2015

Shares 3,227 Value ($000) $436 Avg Close $120.23 Range $112.77 - $127.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,170	$1,009	$905.73	$844.06 - $962.64
Q4 2021	1,961	$1,113	$488.10	$415.17 - $544.86
Q3 2021	8,027	$3,607	$418.22	$374.22 - $447.84
Q3 2020	4,954	$1,759	$309.06	$276.17 - $334.67
Q4 2019	5,404	$1,588	$271.52	$256.90 - $280.77
Q2 2018	976	$204	$177.76	$162.55 - $191.42
Q1 2018	2,595	$489	$169.26	$157.50 - $179.09
Q4 2017	5,897	$1,098	$154.45	$137.67 - $175.03
Q3 2016	13,199	$2,013	$136.95	$124.90 - $143.90
Q2 2015	3,227	$436	$120.23	$112.77 - $127.67