COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

BOKF, NA's Holding History (CIK: 0000009634)

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

Q4 2025

Shares 3,435 Value ($000) $231 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 12,976 Value ($000) $1,095 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 13,471 Value ($000) $1,083 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 13,766 Value ($000) $1,091 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 15,406 Value ($000) $1,076 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 16,288 Value ($000) $1,204 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 15,868 Value ($000) $1,176 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 14,170 Value ($000) $1,339 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 14,089 Value ($000) $1,231 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 12,059 Value ($000) $885 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 12,776 Value ($000) $1,137 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 6,766 Value ($000) $466 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 4,080 Value ($000) $315 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 4,063 Value ($000) $283 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 8,759 Value ($000) $529 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 8,057 Value ($000) $537 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 7,046 Value ($000) $557 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 7,854 Value ($000) $676 Avg Close $86.44 Range $80.00 - $90.85

Q1 2021

Shares 773 Value ($000) $635 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 1,104 Value ($000) $1,020 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 769 Value ($000) $652 Avg Close $79.70 Range $66.20 - $93.90

Q2 2019

Shares 541 Value ($000) $300 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 525 Value ($000) $244 Avg Close $41.31 Range $32.51 - $48.49

Q3 2018

Shares 541 Value ($000) $228 Avg Close $42.74 Range $39.71 - $44.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,435	$231	$70.84	$62.00 - $85.24
Q3 2025	12,976	$1,095	$88.37	$79.94 - $97.43
Q2 2025	13,471	$1,083	$77.90	$71.21 - $83.68
Q1 2025	13,766	$1,091	$76.08	$68.41 - $83.03
Q4 2024	15,406	$1,076	$75.52	$68.26 - $82.49
Q3 2024	16,288	$1,204	$75.84	$70.86 - $81.63
Q2 2024	15,868	$1,176	$84.75	$71.90 - $96.98
Q1 2024	14,170	$1,339	$86.08	$79.82 - $100.38
Q4 2023	14,089	$1,231	$80.94	$67.35 - $89.11
Q3 2023	12,059	$885	$82.85	$75.78 - $92.30
Q2 2023	12,776	$1,137	$77.21	$67.22 - $92.36
Q1 2023	6,766	$466	$73.79	$65.12 - $81.15
Q4 2022	4,080	$315	$78.14	$68.86 - $85.37
Q3 2022	4,063	$283	$69.42	$57.54 - $79.26
Q2 2022	8,759	$529	$60.57	$53.51 - $68.39
Q1 2022	8,057	$537	$66.39	$49.00 - $79.73
Q4 2021	7,046	$557	$83.91	$75.09 - $101.05
Q3 2021	7,854	$676	$86.44	$80.00 - $90.85
Q1 2021	773	$635	$86.33	$74.31 - $95.28
Q4 2020	1,104	$1,020	$87.68	$78.10 - $95.12
Q3 2020	769	$652	$79.70	$66.20 - $93.90
Q2 2019	541	$300	$51.11	$46.90 - $56.27
Q1 2019	525	$244	$41.31	$32.51 - $48.49
Q3 2018	541	$228	$42.74	$39.71 - $44.84