COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Barbara Oil Co.'s Holding History (CIK: 0001599670)

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

Q4 2025

Shares 32,000 Value ($000) $2,152 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 32,000 Value ($000) $2,700 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 32,000 Value ($000) $2,573 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 32,000 Value ($000) $2,535 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 32,000 Value ($000) $2,291 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 32,000 Value ($000) $2,414 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 32,000 Value ($000) $2,372 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 32,000 Value ($000) $3,091 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 32,000 Value ($000) $2,796 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 32,000 Value ($000) $2,460 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 32,000 Value ($000) $2,848 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 32,000 Value ($000) $2,203 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 32,000 Value ($000) $2,473 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 32,000 Value ($000) $2,229 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 32,000 Value ($000) $1,933 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 32,000 Value ($000) $2,132 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 32,000 Value ($000) $2,529 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 32,000 Value ($000) $2,754 Avg Close $86.44 Range $80.00 - $90.85

Q2 2021

Shares 32,000 Value ($000) $2,650 Avg Close $86.45 Range $80.52 - $94.35

Q1 2021

Shares 3,200 Value ($000) $2,630 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 3,200 Value ($000) $2,958 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 3,200 Value ($000) $2,715 Avg Close $79.70 Range $66.20 - $93.90

Q2 2020

Shares 3,200 Value ($000) $2,274 Avg Close $64.65 Range $52.02 - $74.71

Q1 2020

Shares 3,200 Value ($000) $1,879 Avg Close $65.18 Range $50.02 - $74.67

Q4 2019

Shares 3,200 Value ($000) $1,915 Avg Close $58.38 Range $51.00 - $62.35

Q3 2019

Shares 3,200 Value ($000) $1,898 Avg Close $59.86 Range $55.57 - $63.94

Q2 2019

Shares 3,200 Value ($000) $1,773 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 3,200 Value ($000) $1,493 Avg Close $41.31 Range $32.51 - $48.49

Q4 2018

Shares 3,200 Value ($000) $1,079 Avg Close $36.53 Range $31.59 - $42.50

Q3 2018

Shares 3,200 Value ($000) $1,347 Avg Close $42.74 Range $39.71 - $44.84

Q2 2018

Shares 3,200 Value ($000) $1,320 Avg Close $38.48 Range $34.22 - $42.25

Q1 2018

Shares 3,200 Value ($000) $1,161 Avg Close $34.47 Range $29.54 - $37.86

Q4 2017

Shares 3,200 Value ($000) $950 Avg Close $29.30 Range $26.56 - $31.47

Q3 2017

Shares 3,200 Value ($000) $858 Avg Close $27.75 Range $25.54 - $28.80

Q2 2017

Shares 3,200 Value ($000) $844 Avg Close $24.32 Range $20.14 - $26.88

Q1 2017

Shares 3,200 Value ($000) $663 Avg Close $20.32 Range $18.49 - $21.24

Q4 2016

Shares 3,200 Value ($000) $603 Avg Close $19.64 Range $17.92 - $22.44

Q3 2016

Shares 3,200 Value ($000) $693 Avg Close $21.29 Range $20.25 - $22.48

Q2 2016

Shares 3,200 Value ($000) $700 Avg Close $19.77 Range $17.45 - $21.88

Q1 2016

Shares 3,200 Value ($000) $602 Avg Close $17.71 Range $14.65 - $20.50

Q4 2015

Shares 3,200 Value ($000) $661 Avg Close $19.90 Range $16.80 - $21.35

Q3 2015

Shares 3,200 Value ($000) $554 Avg Close $19.15 Range $16.35 - $22.35

Q2 2015

Shares 2,200 Value ($000) $443 Avg Close $20.39 Range $19.23 - $21.67

Q1 2015

Shares 2,200 Value ($000) $435 Avg Close $18.88 Range $16.88 - $20.19

Q4 2014

Shares 2,200 Value ($000) $404 Avg Close $16.16 Range $13.44 - $18.96

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,000	$2,152	$70.84	$62.00 - $85.24
Q3 2025	32,000	$2,700	$88.37	$79.94 - $97.43
Q2 2025	32,000	$2,573	$77.90	$71.21 - $83.68
Q1 2025	32,000	$2,535	$76.08	$68.41 - $83.03
Q4 2024	32,000	$2,291	$75.52	$68.26 - $82.49
Q3 2024	32,000	$2,414	$75.84	$70.86 - $81.63
Q2 2024	32,000	$2,372	$84.75	$71.90 - $96.98
Q1 2024	32,000	$3,091	$86.08	$79.82 - $100.38
Q4 2023	32,000	$2,796	$80.94	$67.35 - $89.11
Q3 2023	32,000	$2,460	$82.85	$75.78 - $92.30
Q2 2023	32,000	$2,848	$77.21	$67.22 - $92.36
Q1 2023	32,000	$2,203	$73.79	$65.12 - $81.15
Q4 2022	32,000	$2,473	$78.14	$68.86 - $85.37
Q3 2022	32,000	$2,229	$69.42	$57.54 - $79.26
Q2 2022	32,000	$1,933	$60.57	$53.51 - $68.39
Q1 2022	32,000	$2,132	$66.39	$49.00 - $79.73
Q4 2021	32,000	$2,529	$83.91	$75.09 - $101.05
Q3 2021	32,000	$2,754	$86.44	$80.00 - $90.85
Q2 2021	32,000	$2,650	$86.45	$80.52 - $94.35
Q1 2021	3,200	$2,630	$86.33	$74.31 - $95.28
Q4 2020	3,200	$2,958	$87.68	$78.10 - $95.12
Q3 2020	3,200	$2,715	$79.70	$66.20 - $93.90
Q2 2020	3,200	$2,274	$64.65	$52.02 - $74.71
Q1 2020	3,200	$1,879	$65.18	$50.02 - $74.67
Q4 2019	3,200	$1,915	$58.38	$51.00 - $62.35
Q3 2019	3,200	$1,898	$59.86	$55.57 - $63.94
Q2 2019	3,200	$1,773	$51.11	$46.90 - $56.27
Q1 2019	3,200	$1,493	$41.31	$32.51 - $48.49
Q4 2018	3,200	$1,079	$36.53	$31.59 - $42.50
Q3 2018	3,200	$1,347	$42.74	$39.71 - $44.84
Q2 2018	3,200	$1,320	$38.48	$34.22 - $42.25
Q1 2018	3,200	$1,161	$34.47	$29.54 - $37.86
Q4 2017	3,200	$950	$29.30	$26.56 - $31.47
Q3 2017	3,200	$858	$27.75	$25.54 - $28.80
Q2 2017	3,200	$844	$24.32	$20.14 - $26.88
Q1 2017	3,200	$663	$20.32	$18.49 - $21.24
Q4 2016	3,200	$603	$19.64	$17.92 - $22.44
Q3 2016	3,200	$693	$21.29	$20.25 - $22.48
Q2 2016	3,200	$700	$19.77	$17.45 - $21.88
Q1 2016	3,200	$602	$17.71	$14.65 - $20.50
Q4 2015	3,200	$661	$19.90	$16.80 - $21.35
Q3 2015	3,200	$554	$19.15	$16.35 - $22.35
Q2 2015	2,200	$443	$20.39	$19.23 - $21.67
Q1 2015	2,200	$435	$18.88	$16.88 - $20.19
Q4 2014	2,200	$404	$16.16	$13.44 - $18.96