COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

George Kaiser Family Foundation's Holding History (CIK: 0001265376)

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

Q3 2023

Shares 27,182 Value ($000) $2,090 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 27,182 Value ($000) $2,419 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 32,346 Value ($000) $2,227 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 32,346 Value ($000) $2,500 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 32,346 Value ($000) $2,253 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 32,346 Value ($000) $1,954 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 32,346 Value ($000) $2,155 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 32,346 Value ($000) $2,556 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 21,033 Value ($000) $1,810 Avg Close $86.44 Range $80.00 - $90.85

Q2 2021

Shares 7,240 Value ($000) $600 Avg Close $86.45 Range $80.52 - $94.35

Q1 2021

Shares 724 Value ($000) $595 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 724 Value ($000) $669 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 724 Value ($000) $614 Avg Close $79.70 Range $66.20 - $93.90

Q2 2020

Shares 724 Value ($000) $515 Avg Close $64.65 Range $52.02 - $74.71

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	27,182	$2,090	$82.85	$75.78 - $92.30
Q2 2023	27,182	$2,419	$77.21	$67.22 - $92.36
Q1 2023	32,346	$2,227	$73.79	$65.12 - $81.15
Q4 2022	32,346	$2,500	$78.14	$68.86 - $85.37
Q3 2022	32,346	$2,253	$69.42	$57.54 - $79.26
Q2 2022	32,346	$1,954	$60.57	$53.51 - $68.39
Q1 2022	32,346	$2,155	$66.39	$49.00 - $79.73
Q4 2021	32,346	$2,556	$83.91	$75.09 - $101.05
Q3 2021	21,033	$1,810	$86.44	$80.00 - $90.85
Q2 2021	7,240	$600	$86.45	$80.52 - $94.35
Q1 2021	724	$595	$86.33	$74.31 - $95.28
Q4 2020	724	$669	$87.68	$78.10 - $95.12
Q3 2020	724	$614	$79.70	$66.20 - $93.90
Q2 2020	724	$515	$64.65	$52.02 - $74.71