COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

MORGAN STANLEY's Holding History (CIK: 0000895421)

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

Q4 2025

Shares 5,291,136 Value ($000) $355,776 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 8,543,024 Value ($000) $720,775 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 7,411,528 Value ($000) $595,887 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 7,910,143 Value ($000) $626,721 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 4,340,263 Value ($000) $310,720 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 3,671,066 Value ($000) $276,945 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 3,558,068 Value ($000) $263,795 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 4,024,461 Value ($000) $388,763 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 2,864,665 Value ($000) $250,343 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 2,380,227 Value ($000) $183,016 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 1,937,254 Value ($000) $172,416 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 1,930,615 Value ($000) $132,923 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 2,197,774 Value ($000) $169,844 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 1,731,699 Value ($000) $120,614 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 1,424,667 Value ($000) $86,064 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 1,018,818 Value ($000) $67,865 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 1,184,968 Value ($000) $93,648 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 1,221,502 Value ($000) $105,122 Avg Close $86.44 Range $80.00 - $90.85

Q2 2021

Shares 1,239,358 Value ($000) $102,644 Avg Close $86.45 Range $80.52 - $94.35

Q1 2021

Shares 48,162 Value ($000) $39,583 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 175,578 Value ($000) $162,283 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 47,863 Value ($000) $40,612 Avg Close $79.70 Range $66.20 - $93.90

Q2 2020

Shares 55,372 Value ($000) $39,352 Avg Close $64.65 Range $52.02 - $74.71

Q1 2020

Shares 51,387 Value ($000) $30,175 Avg Close $65.18 Range $50.02 - $74.67

Q4 2019

Shares 65,599 Value ($000) $39,248 Avg Close $58.38 Range $51.00 - $62.35

Q3 2019

Shares 54,216 Value ($000) $32,162 Avg Close $59.86 Range $55.57 - $63.94

Q2 2019

Shares 62,335 Value ($000) $34,538 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 88,186 Value ($000) $41,131 Avg Close $41.31 Range $32.51 - $48.49

Q4 2018

Shares 84,310 Value ($000) $28,441 Avg Close $36.53 Range $31.59 - $42.50

Q3 2018

Shares 205,465 Value ($000) $86,468 Avg Close $42.74 Range $39.71 - $44.84

Q2 2018

Shares 87,545 Value ($000) $36,124 Avg Close $38.48 Range $34.22 - $42.25

Q1 2018

Shares 45,215 Value ($000) $16,398 Avg Close $34.47 Range $29.54 - $37.86

Q4 2017

Shares 41,048 Value ($000) $12,190 Avg Close $29.30 Range $26.56 - $31.47

Q3 2017

Shares 106,304 Value ($000) $28,516 Avg Close $27.75 Range $25.54 - $28.80

Q2 2017

Shares 49,597 Value ($000) $13,074 Avg Close $24.32 Range $20.14 - $26.88

Q1 2017

Shares 48,211 Value ($000) $9,991 Avg Close $20.32 Range $18.49 - $21.24

Q4 2016

Shares 78,919 Value ($000) $14,875 Avg Close $19.64 Range $17.92 - $22.44

Q3 2016

Shares 10,948 Value ($000) $2,371 Avg Close $21.29 Range $20.25 - $22.48

Q2 2016

Shares 10,905 Value ($000) $2,384 Avg Close $19.77 Range $17.45 - $21.88

Q1 2016

Shares 8,203 Value ($000) $1,543 Avg Close $17.71 Range $14.65 - $20.50

Q4 2015

Shares 4,864 Value ($000) $1,005 Avg Close $19.90 Range $16.80 - $21.35

Q3 2015

Shares 4,118 Value ($000) $713 Avg Close $19.15 Range $16.35 - $22.35

Q2 2015

Shares 7,354 Value ($000) $1,479 Avg Close $20.39 Range $19.23 - $21.67

Q1 2015

Shares 3,152 Value ($000) $624 Avg Close $18.88 Range $16.88 - $20.19

Q4 2014

Shares 22,253 Value ($000) $4,087 Avg Close $16.16 Range $13.44 - $18.96

Q3 2014

Shares 4,362 Value ($000) $678 Avg Close $14.90 Range $13.85 - $16.58

Q2 2014

Shares 43,492 Value ($000) $6,880 Avg Close $16.20 Range $14.70 - $19.34

Q1 2014

Shares 44,386 Value ($000) $8,289 Avg Close $18.86 Range $16.38 - $21.82

Q4 2013

Shares 194,549 Value ($000) $35,910 Avg Close $17.69 Range $16.07 - $18.84

Q3 2013

Shares 325,611 Value ($000) $54,673 Avg Close $15.34 Range $12.98 - $17.22

Q2 2013

Shares 532,370 Value ($000) $68,714 Avg Close $11.32 Range $10.46 - $13.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,291,136	$355,776	$70.84	$62.00 - $85.24
Q3 2025	8,543,024	$720,775	$88.37	$79.94 - $97.43
Q2 2025	7,411,528	$595,887	$77.90	$71.21 - $83.68
Q1 2025	7,910,143	$626,721	$76.08	$68.41 - $83.03
Q4 2024	4,340,263	$310,720	$75.52	$68.26 - $82.49
Q3 2024	3,671,066	$276,945	$75.84	$70.86 - $81.63
Q2 2024	3,558,068	$263,795	$84.75	$71.90 - $96.98
Q1 2024	4,024,461	$388,763	$86.08	$79.82 - $100.38
Q4 2023	2,864,665	$250,343	$80.94	$67.35 - $89.11
Q3 2023	2,380,227	$183,016	$82.85	$75.78 - $92.30
Q2 2023	1,937,254	$172,416	$77.21	$67.22 - $92.36
Q1 2023	1,930,615	$132,923	$73.79	$65.12 - $81.15
Q4 2022	2,197,774	$169,844	$78.14	$68.86 - $85.37
Q3 2022	1,731,699	$120,614	$69.42	$57.54 - $79.26
Q2 2022	1,424,667	$86,064	$60.57	$53.51 - $68.39
Q1 2022	1,018,818	$67,865	$66.39	$49.00 - $79.73
Q4 2021	1,184,968	$93,648	$83.91	$75.09 - $101.05
Q3 2021	1,221,502	$105,122	$86.44	$80.00 - $90.85
Q2 2021	1,239,358	$102,644	$86.45	$80.52 - $94.35
Q1 2021	48,162	$39,583	$86.33	$74.31 - $95.28
Q4 2020	175,578	$162,283	$87.68	$78.10 - $95.12
Q3 2020	47,863	$40,612	$79.70	$66.20 - $93.90
Q2 2020	55,372	$39,352	$64.65	$52.02 - $74.71
Q1 2020	51,387	$30,175	$65.18	$50.02 - $74.67
Q4 2019	65,599	$39,248	$58.38	$51.00 - $62.35
Q3 2019	54,216	$32,162	$59.86	$55.57 - $63.94
Q2 2019	62,335	$34,538	$51.11	$46.90 - $56.27
Q1 2019	88,186	$41,131	$41.31	$32.51 - $48.49
Q4 2018	84,310	$28,441	$36.53	$31.59 - $42.50
Q3 2018	205,465	$86,468	$42.74	$39.71 - $44.84
Q2 2018	87,545	$36,124	$38.48	$34.22 - $42.25
Q1 2018	45,215	$16,398	$34.47	$29.54 - $37.86
Q4 2017	41,048	$12,190	$29.30	$26.56 - $31.47
Q3 2017	106,304	$28,516	$27.75	$25.54 - $28.80
Q2 2017	49,597	$13,074	$24.32	$20.14 - $26.88
Q1 2017	48,211	$9,991	$20.32	$18.49 - $21.24
Q4 2016	78,919	$14,875	$19.64	$17.92 - $22.44
Q3 2016	10,948	$2,371	$21.29	$20.25 - $22.48
Q2 2016	10,905	$2,384	$19.77	$17.45 - $21.88
Q1 2016	8,203	$1,543	$17.71	$14.65 - $20.50
Q4 2015	4,864	$1,005	$19.90	$16.80 - $21.35
Q3 2015	4,118	$713	$19.15	$16.35 - $22.35
Q2 2015	7,354	$1,479	$20.39	$19.23 - $21.67
Q1 2015	3,152	$624	$18.88	$16.88 - $20.19
Q4 2014	22,253	$4,087	$16.16	$13.44 - $18.96
Q3 2014	4,362	$678	$14.90	$13.85 - $16.58
Q2 2014	43,492	$6,880	$16.20	$14.70 - $19.34
Q1 2014	44,386	$8,289	$18.86	$16.38 - $21.82
Q4 2013	194,549	$35,910	$17.69	$16.07 - $18.84
Q3 2013	325,611	$54,673	$15.34	$12.98 - $17.22
Q2 2013	532,370	$68,714	$11.32	$10.46 - $13.07