COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

DEARBORN PARTNERS LLC's Holding History (CIK: 0001206792)

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

Q4 2025

Shares 34,863 Value ($000) $30,064 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 35,898 Value ($000) $33,229 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 36,702 Value ($000) $36,333 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 34,286 Value ($000) $32,427 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 41,379 Value ($000) $37,915 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 42,300 Value ($000) $37,500 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 57,048 Value ($000) $48,490 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 57,785 Value ($000) $42,335 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 75,328 Value ($000) $49,723 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 76,813 Value ($000) $43,396 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 76,702 Value ($000) $41,295 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 76,739 Value ($000) $38,129 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 77,826 Value ($000) $35,528 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 79,732 Value ($000) $37,655 Avg Close $498.08 Range $444.08 - $541.06

Q2 2015

Shares 4,804 Value ($000) $649 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 12,008 Value ($000) $1,819 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 11,771 Value ($000) $1,669 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 12,719 Value ($000) $1,594 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 11,690 Value ($000) $1,346 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 11,688 Value ($000) $1,305 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 11,870 Value ($000) $1,413 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 13,139 Value ($000) $1,513 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 12,813 Value ($000) $1,417 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	34,863	$30,064	$905.73	$844.06 - $962.64
Q3 2025	35,898	$33,229	$956.70	$902.01 - $997.89
Q2 2025	36,702	$36,333	$990.72	$868.14 - $1064.10
Q1 2025	34,286	$32,427	$970.56	$877.95 - $1073.82
Q4 2024	41,379	$37,915	$922.64	$861.51 - $1003.02
Q3 2024	42,300	$37,500	$861.91	$787.84 - $917.81
Q2 2024	57,048	$48,490	$773.82	$690.64 - $867.04
Q1 2024	57,785	$42,335	$706.75	$633.49 - $779.59
Q4 2023	75,328	$49,723	$573.49	$521.47 - $661.25
Q3 2023	76,813	$43,396	$532.21	$505.45 - $552.31
Q2 2023	76,702	$41,295	$487.14	$459.09 - $519.84
Q1 2023	76,739	$38,129	$471.27	$429.88 - $509.61
Q4 2022	77,826	$35,528	$468.77	$430.19 - $520.75
Q3 2022	79,732	$37,655	$498.08	$444.08 - $541.06
Q2 2015	4,804	$649	$120.23	$112.77 - $127.67
Q1 2015	12,008	$1,819	$120.91	$111.40 - $128.73
Q4 2014	11,771	$1,669	$109.42	$98.12 - $118.34
Q3 2014	12,719	$1,594	$97.13	$92.09 - $102.72
Q2 2014	11,690	$1,346	$91.81	$88.18 - $95.25
Q1 2014	11,688	$1,305	$91.29	$87.26 - $95.07
Q4 2013	11,870	$1,413	$95.15	$87.55 - $100.50
Q3 2013	13,139	$1,513	$91.64	$87.25 - $95.29
Q2 2013	12,813	$1,417	$86.56	$81.59 - $91.78