COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

L. Roy Papp & Associates, LLP's Holding History (CIK: 0000809339)

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

Q4 2025

Shares 33,254 Value ($000) $2,236 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 33,208 Value ($000) $2,802 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 33,840 Value ($000) $2,721 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 33,248 Value ($000) $2,634 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 34,740 Value ($000) $2,487 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 35,370 Value ($000) $2,668 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 35,940 Value ($000) $2,665 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 36,510 Value ($000) $3,527 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 37,540 Value ($000) $3,281 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 37,833 Value ($000) $2,909 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 37,953 Value ($000) $3,378 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 37,953 Value ($000) $2,613 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 37,953 Value ($000) $2,933 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 37,953 Value ($000) $2,643 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 37,953 Value ($000) $2,293 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 37,953 Value ($000) $2,528 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 38,453 Value ($000) $3,039 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 38,330 Value ($000) $3,299 Avg Close $86.44 Range $80.00 - $90.85

Q2 2021

Shares 38,330 Value ($000) $3,174 Avg Close $86.45 Range $80.52 - $94.35

Q1 2021

Shares 3,833 Value ($000) $3,150 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 3,854 Value ($000) $3,562 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 3,854 Value ($000) $3,270 Avg Close $79.70 Range $66.20 - $93.90

Q2 2020

Shares 3,854 Value ($000) $2,739 Avg Close $64.65 Range $52.02 - $74.71

Q1 2020

Shares 3,854 Value ($000) $2,263 Avg Close $65.18 Range $50.02 - $74.67

Q4 2019

Shares 3,854 Value ($000) $2,306 Avg Close $58.38 Range $51.00 - $62.35

Q3 2019

Shares 4,133 Value ($000) $2,452 Avg Close $59.86 Range $55.57 - $63.94

Q2 2019

Shares 4,133 Value ($000) $2,290 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 4,128 Value ($000) $1,925 Avg Close $41.31 Range $32.51 - $48.49

Q4 2018

Shares 4,128 Value ($000) $1,393 Avg Close $36.53 Range $31.59 - $42.50

Q3 2018

Shares 4,156 Value ($000) $1,749 Avg Close $42.74 Range $39.71 - $44.84

Q2 2018

Shares 4,156 Value ($000) $1,715 Avg Close $38.48 Range $34.22 - $42.25

Q1 2018

Shares 4,156 Value ($000) $1,507 Avg Close $34.47 Range $29.54 - $37.86

Q4 2017

Shares 4,176 Value ($000) $1,240 Avg Close $29.30 Range $26.56 - $31.47

Q3 2017

Shares 4,469 Value ($000) $1,199 Avg Close $27.75 Range $25.54 - $28.80

Q2 2017

Shares 4,674 Value ($000) $1,232 Avg Close $24.32 Range $20.14 - $26.88

Q1 2017

Shares 4,776 Value ($000) $990 Avg Close $20.32 Range $18.49 - $21.24

Q4 2016

Shares 4,776 Value ($000) $900 Avg Close $19.64 Range $17.92 - $22.44

Q3 2016

Shares 4,804 Value ($000) $1,040 Avg Close $21.29 Range $20.25 - $22.48

Q2 2016

Shares 4,804 Value ($000) $1,050 Avg Close $19.77 Range $17.45 - $21.88

Q1 2016

Shares 4,804 Value ($000) $904 Avg Close $17.71 Range $14.65 - $20.50

Q4 2015

Shares 4,819 Value ($000) $996 Avg Close $19.90 Range $16.80 - $21.35

Q3 2015

Shares 4,819 Value ($000) $834 Avg Close $19.15 Range $16.35 - $22.35

Q2 2015

Shares 4,821 Value ($000) $970 Avg Close $20.39 Range $19.23 - $21.67

Q1 2015

Shares 4,819 Value ($000) $953 Avg Close $18.88 Range $16.88 - $20.19

Q4 2014

Shares 4,819 Value ($000) $885 Avg Close $16.16 Range $13.44 - $18.96

Q3 2014

Shares 4,819 Value ($000) $750 Avg Close $14.90 Range $13.85 - $16.58

Q2 2014

Shares 4,799 Value ($000) $759 Avg Close $16.20 Range $14.70 - $19.34

Q1 2014

Shares 4,799 Value ($000) $896 Avg Close $18.86 Range $16.38 - $21.82

Q4 2013

Shares 4,784 Value ($000) $883 Avg Close $17.69 Range $16.07 - $18.84

Q3 2013

Shares 4,784 Value ($000) $803 Avg Close $15.34 Range $12.98 - $17.22

Q2 2013

Shares 4,784 Value ($000) $617 Avg Close $11.32 Range $10.46 - $13.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	33,254	$2,236	$70.84	$62.00 - $85.24
Q3 2025	33,208	$2,802	$88.37	$79.94 - $97.43
Q2 2025	33,840	$2,721	$77.90	$71.21 - $83.68
Q1 2025	33,248	$2,634	$76.08	$68.41 - $83.03
Q4 2024	34,740	$2,487	$75.52	$68.26 - $82.49
Q3 2024	35,370	$2,668	$75.84	$70.86 - $81.63
Q2 2024	35,940	$2,665	$84.75	$71.90 - $96.98
Q1 2024	36,510	$3,527	$86.08	$79.82 - $100.38
Q4 2023	37,540	$3,281	$80.94	$67.35 - $89.11
Q3 2023	37,833	$2,909	$82.85	$75.78 - $92.30
Q2 2023	37,953	$3,378	$77.21	$67.22 - $92.36
Q1 2023	37,953	$2,613	$73.79	$65.12 - $81.15
Q4 2022	37,953	$2,933	$78.14	$68.86 - $85.37
Q3 2022	37,953	$2,643	$69.42	$57.54 - $79.26
Q2 2022	37,953	$2,293	$60.57	$53.51 - $68.39
Q1 2022	37,953	$2,528	$66.39	$49.00 - $79.73
Q4 2021	38,453	$3,039	$83.91	$75.09 - $101.05
Q3 2021	38,330	$3,299	$86.44	$80.00 - $90.85
Q2 2021	38,330	$3,174	$86.45	$80.52 - $94.35
Q1 2021	3,833	$3,150	$86.33	$74.31 - $95.28
Q4 2020	3,854	$3,562	$87.68	$78.10 - $95.12
Q3 2020	3,854	$3,270	$79.70	$66.20 - $93.90
Q2 2020	3,854	$2,739	$64.65	$52.02 - $74.71
Q1 2020	3,854	$2,263	$65.18	$50.02 - $74.67
Q4 2019	3,854	$2,306	$58.38	$51.00 - $62.35
Q3 2019	4,133	$2,452	$59.86	$55.57 - $63.94
Q2 2019	4,133	$2,290	$51.11	$46.90 - $56.27
Q1 2019	4,128	$1,925	$41.31	$32.51 - $48.49
Q4 2018	4,128	$1,393	$36.53	$31.59 - $42.50
Q3 2018	4,156	$1,749	$42.74	$39.71 - $44.84
Q2 2018	4,156	$1,715	$38.48	$34.22 - $42.25
Q1 2018	4,156	$1,507	$34.47	$29.54 - $37.86
Q4 2017	4,176	$1,240	$29.30	$26.56 - $31.47
Q3 2017	4,469	$1,199	$27.75	$25.54 - $28.80
Q2 2017	4,674	$1,232	$24.32	$20.14 - $26.88
Q1 2017	4,776	$990	$20.32	$18.49 - $21.24
Q4 2016	4,776	$900	$19.64	$17.92 - $22.44
Q3 2016	4,804	$1,040	$21.29	$20.25 - $22.48
Q2 2016	4,804	$1,050	$19.77	$17.45 - $21.88
Q1 2016	4,804	$904	$17.71	$14.65 - $20.50
Q4 2015	4,819	$996	$19.90	$16.80 - $21.35
Q3 2015	4,819	$834	$19.15	$16.35 - $22.35
Q2 2015	4,821	$970	$20.39	$19.23 - $21.67
Q1 2015	4,819	$953	$18.88	$16.88 - $20.19
Q4 2014	4,819	$885	$16.16	$13.44 - $18.96
Q3 2014	4,819	$750	$14.90	$13.85 - $16.58
Q2 2014	4,799	$759	$16.20	$14.70 - $19.34
Q1 2014	4,799	$896	$18.86	$16.38 - $21.82
Q4 2013	4,784	$883	$17.69	$16.07 - $18.84
Q3 2013	4,784	$803	$15.34	$12.98 - $17.22
Q2 2013	4,784	$617	$11.32	$10.46 - $13.07