COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Assenagon Asset Management S.A.'s Holding History (CIK: 0001546007)

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

Q4 2025

Shares 11,461 Value ($000) $771 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 12,997 Value ($000) $1,097 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 8,164 Value ($000) $656 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 7,950 Value ($000) $630 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 401,366 Value ($000) $28,734 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 287,441 Value ($000) $21,685 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 369,291 Value ($000) $27,379 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 106,057 Value ($000) $10,245 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 169,354 Value ($000) $14,800 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 94,979 Value ($000) $7,303 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 387,113 Value ($000) $34,453 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 11,301 Value ($000) $778 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 42,526 Value ($000) $3 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 43,721 Value ($000) $3,045 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 282,115 Value ($000) $17,043 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 1,321,807 Value ($000) $88,046 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 532,645 Value ($000) $42,095 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 331,579 Value ($000) $28,536 Avg Close $86.44 Range $80.00 - $90.85

Q1 2021

Shares 28,929 Value ($000) $23,776 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 2,909 Value ($000) $2,689 Avg Close $87.68 Range $78.10 - $95.12

Q2 2020

Shares 138,114 Value ($000) $98,153 Avg Close $64.65 Range $52.02 - $74.71

Q1 2020

Shares 40,978 Value ($000) $24,063 Avg Close $65.18 Range $50.02 - $74.67

Q3 2019

Shares 28,583 Value ($000) $16,955 Avg Close $59.86 Range $55.57 - $63.94

Q2 2019

Shares 110,704 Value ($000) $61,337 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 472 Value ($000) $220 Avg Close $41.31 Range $32.51 - $48.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,461	$771	$70.84	$62.00 - $85.24
Q3 2025	12,997	$1,097	$88.37	$79.94 - $97.43
Q2 2025	8,164	$656	$77.90	$71.21 - $83.68
Q1 2025	7,950	$630	$76.08	$68.41 - $83.03
Q4 2024	401,366	$28,734	$75.52	$68.26 - $82.49
Q3 2024	287,441	$21,685	$75.84	$70.86 - $81.63
Q2 2024	369,291	$27,379	$84.75	$71.90 - $96.98
Q1 2024	106,057	$10,245	$86.08	$79.82 - $100.38
Q4 2023	169,354	$14,800	$80.94	$67.35 - $89.11
Q3 2023	94,979	$7,303	$82.85	$75.78 - $92.30
Q2 2023	387,113	$34,453	$77.21	$67.22 - $92.36
Q1 2023	11,301	$778	$73.79	$65.12 - $81.15
Q4 2022	42,526	$3	$78.14	$68.86 - $85.37
Q3 2022	43,721	$3,045	$69.42	$57.54 - $79.26
Q2 2022	282,115	$17,043	$60.57	$53.51 - $68.39
Q1 2022	1,321,807	$88,046	$66.39	$49.00 - $79.73
Q4 2021	532,645	$42,095	$83.91	$75.09 - $101.05
Q3 2021	331,579	$28,536	$86.44	$80.00 - $90.85
Q1 2021	28,929	$23,776	$86.33	$74.31 - $95.28
Q4 2020	2,909	$2,689	$87.68	$78.10 - $95.12
Q2 2020	138,114	$98,153	$64.65	$52.02 - $74.71
Q1 2020	40,978	$24,063	$65.18	$50.02 - $74.67
Q3 2019	28,583	$16,955	$59.86	$55.57 - $63.94
Q2 2019	110,704	$61,337	$51.11	$46.90 - $56.27
Q1 2019	472	$220	$41.31	$32.51 - $48.49