COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO's Holding History (CIK: 0001007280)

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

Q4 2025

Shares 126,840 Value ($000) $8,529 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 207,780 Value ($000) $17,530 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 204,904 Value ($000) $16,474 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 129,004 Value ($000) $10,221 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 140,490 Value ($000) $10,058 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 148,391 Value ($000) $11,195 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 190,286 Value ($000) $14,108 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 188,753 Value ($000) $18,234 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 209,050 Value ($000) $18,269 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 204,492 Value ($000) $15,723 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 217,909 Value ($000) $19,394 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 231,831 Value ($000) $15,962 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 242,500 Value ($000) $18,740 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 223,401 Value ($000) $15,560 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 198,416 Value ($000) $11,986 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 206,112 Value ($000) $13,729 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 212,908 Value ($000) $16,826 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 220,575 Value ($000) $18,983 Avg Close $86.44 Range $80.00 - $90.85

Q2 2021

Shares 225,225 Value ($000) $18,653 Avg Close $86.45 Range $80.52 - $94.35

Q1 2021

Shares 21,062 Value ($000) $17,311 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 20,349 Value ($000) $18,808 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 16,411 Value ($000) $13,925 Avg Close $79.70 Range $66.20 - $93.90

Q2 2020

Shares 14,614 Value ($000) $10,386 Avg Close $64.65 Range $52.02 - $74.71

Q1 2020

Shares 16,171 Value ($000) $9,496 Avg Close $65.18 Range $50.02 - $74.67

Q4 2019

Shares 12,172 Value ($000) $7,283 Avg Close $58.38 Range $51.00 - $62.35

Q3 2019

Shares 40,287 Value ($000) $23,898 Avg Close $59.86 Range $55.57 - $63.94

Q2 2019

Shares 44,544 Value ($000) $24,680 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 52,138 Value ($000) $24,318 Avg Close $41.31 Range $32.51 - $48.49

Q4 2018

Shares 49,998 Value ($000) $16,866 Avg Close $36.53 Range $31.59 - $42.50

Q3 2018

Shares 46,803 Value ($000) $19,697 Avg Close $42.74 Range $39.71 - $44.84

Q2 2018

Shares 42,549 Value ($000) $17,557 Avg Close $38.48 Range $34.22 - $42.25

Q1 2018

Shares 39,028 Value ($000) $14,155 Avg Close $34.47 Range $29.54 - $37.86

Q4 2017

Shares 47,570 Value ($000) $14,126 Avg Close $29.30 Range $26.56 - $31.47

Q3 2017

Shares 46,188 Value ($000) $12,390 Avg Close $27.75 Range $25.54 - $28.80

Q2 2017

Shares 43,787 Value ($000) $11,542 Avg Close $24.32 Range $20.14 - $26.88

Q1 2017

Shares 44,186 Value ($000) $9,156 Avg Close $20.32 Range $18.49 - $21.24

Q4 2016

Shares 44,186 Value ($000) $9,280 Avg Close $19.64 Range $17.92 - $22.44

Q3 2016

Shares 44,186 Value ($000) $9,568 Avg Close $21.29 Range $20.25 - $22.48

Q2 2016

Shares 42,366 Value ($000) $9,264 Avg Close $19.77 Range $17.45 - $21.88

Q1 2016

Shares 35,764 Value ($000) $6,730 Avg Close $17.71 Range $14.65 - $20.50

Q4 2015

Shares 46,975 Value ($000) $9,709 Avg Close $19.90 Range $16.80 - $21.35

Q3 2015

Shares 47,320 Value ($000) $8,189 Avg Close $19.15 Range $16.35 - $22.35

Q2 2015

Shares 49,157 Value ($000) $9,893 Avg Close $20.39 Range $19.23 - $21.67

Q1 2015

Shares 48,044 Value ($000) $9,505 Avg Close $18.88 Range $16.88 - $20.19

Q4 2014

Shares 47,965 Value ($000) $8,808 Avg Close $16.16 Range $13.44 - $18.96

Q3 2014

Shares 45,482 Value ($000) $7,074 Avg Close $14.90 Range $13.85 - $16.58

Q2 2014

Shares 45,110 Value ($000) $7,135 Avg Close $16.20 Range $14.70 - $19.34

Q1 2014

Shares 45,041 Value ($000) $8,411 Avg Close $18.86 Range $16.38 - $21.82

Q4 2013

Shares 45,041 Value ($000) $8,314 Avg Close $17.69 Range $16.07 - $18.84

Q3 2013

Shares 45,041 Value ($000) $7,562 Avg Close $15.34 Range $12.98 - $17.22

Q2 2013

Shares 19,579 Value ($000) $2,527 Avg Close $11.32 Range $10.46 - $13.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	126,840	$8,529	$70.84	$62.00 - $85.24
Q3 2025	207,780	$17,530	$88.37	$79.94 - $97.43
Q2 2025	204,904	$16,474	$77.90	$71.21 - $83.68
Q1 2025	129,004	$10,221	$76.08	$68.41 - $83.03
Q4 2024	140,490	$10,058	$75.52	$68.26 - $82.49
Q3 2024	148,391	$11,195	$75.84	$70.86 - $81.63
Q2 2024	190,286	$14,108	$84.75	$71.90 - $96.98
Q1 2024	188,753	$18,234	$86.08	$79.82 - $100.38
Q4 2023	209,050	$18,269	$80.94	$67.35 - $89.11
Q3 2023	204,492	$15,723	$82.85	$75.78 - $92.30
Q2 2023	217,909	$19,394	$77.21	$67.22 - $92.36
Q1 2023	231,831	$15,962	$73.79	$65.12 - $81.15
Q4 2022	242,500	$18,740	$78.14	$68.86 - $85.37
Q3 2022	223,401	$15,560	$69.42	$57.54 - $79.26
Q2 2022	198,416	$11,986	$60.57	$53.51 - $68.39
Q1 2022	206,112	$13,729	$66.39	$49.00 - $79.73
Q4 2021	212,908	$16,826	$83.91	$75.09 - $101.05
Q3 2021	220,575	$18,983	$86.44	$80.00 - $90.85
Q2 2021	225,225	$18,653	$86.45	$80.52 - $94.35
Q1 2021	21,062	$17,311	$86.33	$74.31 - $95.28
Q4 2020	20,349	$18,808	$87.68	$78.10 - $95.12
Q3 2020	16,411	$13,925	$79.70	$66.20 - $93.90
Q2 2020	14,614	$10,386	$64.65	$52.02 - $74.71
Q1 2020	16,171	$9,496	$65.18	$50.02 - $74.67
Q4 2019	12,172	$7,283	$58.38	$51.00 - $62.35
Q3 2019	40,287	$23,898	$59.86	$55.57 - $63.94
Q2 2019	44,544	$24,680	$51.11	$46.90 - $56.27
Q1 2019	52,138	$24,318	$41.31	$32.51 - $48.49
Q4 2018	49,998	$16,866	$36.53	$31.59 - $42.50
Q3 2018	46,803	$19,697	$42.74	$39.71 - $44.84
Q2 2018	42,549	$17,557	$38.48	$34.22 - $42.25
Q1 2018	39,028	$14,155	$34.47	$29.54 - $37.86
Q4 2017	47,570	$14,126	$29.30	$26.56 - $31.47
Q3 2017	46,188	$12,390	$27.75	$25.54 - $28.80
Q2 2017	43,787	$11,542	$24.32	$20.14 - $26.88
Q1 2017	44,186	$9,156	$20.32	$18.49 - $21.24
Q4 2016	44,186	$9,280	$19.64	$17.92 - $22.44
Q3 2016	44,186	$9,568	$21.29	$20.25 - $22.48
Q2 2016	42,366	$9,264	$19.77	$17.45 - $21.88
Q1 2016	35,764	$6,730	$17.71	$14.65 - $20.50
Q4 2015	46,975	$9,709	$19.90	$16.80 - $21.35
Q3 2015	47,320	$8,189	$19.15	$16.35 - $22.35
Q2 2015	49,157	$9,893	$20.39	$19.23 - $21.67
Q1 2015	48,044	$9,505	$18.88	$16.88 - $20.19
Q4 2014	47,965	$8,808	$16.16	$13.44 - $18.96
Q3 2014	45,482	$7,074	$14.90	$13.85 - $16.58
Q2 2014	45,110	$7,135	$16.20	$14.70 - $19.34
Q1 2014	45,041	$8,411	$18.86	$16.38 - $21.82
Q4 2013	45,041	$8,314	$17.69	$16.07 - $18.84
Q3 2013	45,041	$7,562	$15.34	$12.98 - $17.22
Q2 2013	19,579	$2,527	$11.32	$10.46 - $13.07