COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

AMERICAN CAPITAL MANAGEMENT INC's Holding History (CIK: 0001320168)

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

Q4 2025

Shares 825,340 Value ($000) $55,496 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 793,664 Value ($000) $66,961 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 795,961 Value ($000) $63,995 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 938,142 Value ($000) $74,329 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 936,988 Value ($000) $67,079 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 927,391 Value ($000) $69,962 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 823,074 Value ($000) $61,023 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 813,599 Value ($000) $78,594 Avg Close $86.08 Range $79.82 - $100.38

Q4 2023

Shares 820,097 Value ($000) $71,668 Avg Close $80.94 Range $67.35 - $89.11

Q3 2023

Shares 833,322 Value ($000) $64,074 Avg Close $82.85 Range $75.78 - $92.30

Q2 2023

Shares 833,521 Value ($000) $74,183 Avg Close $77.21 Range $67.22 - $92.36

Q1 2023

Shares 841,480 Value ($000) $57,936 Avg Close $73.79 Range $65.12 - $81.15

Q4 2022

Shares 812,146 Value ($000) $62,763 Avg Close $78.14 Range $68.86 - $85.37

Q3 2022

Shares 792,352 Value ($000) $55,187 Avg Close $69.42 Range $57.54 - $79.26

Q2 2022

Shares 793,188 Value ($000) $47,916 Avg Close $60.57 Range $53.51 - $68.39

Q1 2022

Shares 773,492 Value ($000) $51,522 Avg Close $66.39 Range $49.00 - $79.73

Q4 2021

Shares 745,335 Value ($000) $58,904 Avg Close $83.91 Range $75.09 - $101.05

Q3 2021

Shares 706,977 Value ($000) $60,842 Avg Close $86.44 Range $80.00 - $90.85

Q2 2021

Shares 711,964 Value ($000) $58,965 Avg Close $86.45 Range $80.52 - $94.35

Q1 2021

Shares 70,791 Value ($000) $58,182 Avg Close $86.33 Range $74.31 - $95.28

Q4 2020

Shares 69,821 Value ($000) $64,534 Avg Close $87.68 Range $78.10 - $95.12

Q3 2020

Shares 69,947 Value ($000) $59,351 Avg Close $79.70 Range $66.20 - $93.90

Q2 2020

Shares 73,294 Value ($000) $52,088 Avg Close $64.65 Range $52.02 - $74.71

Q1 2020

Shares 77,850 Value ($000) $45,714 Avg Close $65.18 Range $50.02 - $74.67

Q4 2019

Shares 79,716 Value ($000) $47,694 Avg Close $58.38 Range $51.00 - $62.35

Q3 2019

Shares 79,125 Value ($000) $46,937 Avg Close $59.86 Range $55.57 - $63.94

Q2 2019

Shares 80,070 Value ($000) $44,364 Avg Close $51.11 Range $46.90 - $56.27

Q1 2019

Shares 81,085 Value ($000) $37,820 Avg Close $41.31 Range $32.51 - $48.49

Q4 2018

Shares 82,638 Value ($000) $27,877 Avg Close $36.53 Range $31.59 - $42.50

Q3 2018

Shares 48,432 Value ($000) $20,382 Avg Close $42.74 Range $39.71 - $44.84

Q2 2018

Shares 48,238 Value ($000) $19,904 Avg Close $38.48 Range $34.22 - $42.25

Q1 2018

Shares 48,771 Value ($000) $17,688 Avg Close $34.47 Range $29.54 - $37.86

Q4 2017

Shares 50,261 Value ($000) $14,925 Avg Close $29.30 Range $26.56 - $31.47

Q3 2017

Shares 49,681 Value ($000) $13,327 Avg Close $27.75 Range $25.54 - $28.80

Q2 2017

Shares 48,771 Value ($000) $12,856 Avg Close $24.32 Range $20.14 - $26.88

Q1 2017

Shares 45,313 Value ($000) $9,390 Avg Close $20.32 Range $18.49 - $21.24

Q4 2016

Shares 47,593 Value ($000) $8,971 Avg Close $19.64 Range $17.92 - $22.44

Q3 2016

Shares 47,693 Value ($000) $10,327 Avg Close $21.29 Range $20.25 - $22.48

Q2 2016

Shares 49,023 Value ($000) $10,719 Avg Close $19.77 Range $17.45 - $21.88

Q1 2016

Shares 47,223 Value ($000) $8,886 Avg Close $17.71 Range $14.65 - $20.50

Q4 2015

Shares 46,733 Value ($000) $9,659 Avg Close $19.90 Range $16.80 - $21.35

Q3 2015

Shares 3,600 Value ($000) $623 Avg Close $19.15 Range $16.35 - $22.35

Q2 2015

Shares 3,750 Value ($000) $755 Avg Close $20.39 Range $19.23 - $21.67

Q1 2015

Shares 3,350 Value ($000) $663 Avg Close $18.88 Range $16.88 - $20.19

Q4 2014

Shares 3,750 Value ($000) $689 Avg Close $16.16 Range $13.44 - $18.96

Q3 2014

Shares 2,350 Value ($000) $366 Avg Close $14.90 Range $13.85 - $16.58

Q2 2014

Shares 2,350 Value ($000) $372 Avg Close $16.20 Range $14.70 - $19.34

Q1 2014

Shares 2,350 Value ($000) $439 Avg Close $18.86 Range $16.38 - $21.82

Q4 2013

Shares 2,350 Value ($000) $434 Avg Close $17.69 Range $16.07 - $18.84

Q3 2013

Shares 2,350 Value ($000) $395 Avg Close $15.34 Range $12.98 - $17.22

Q2 2013

Shares 2,350 Value ($000) $303 Avg Close $11.32 Range $10.46 - $13.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	825,340	$55,496	$70.84	$62.00 - $85.24
Q3 2025	793,664	$66,961	$88.37	$79.94 - $97.43
Q2 2025	795,961	$63,995	$77.90	$71.21 - $83.68
Q1 2025	938,142	$74,329	$76.08	$68.41 - $83.03
Q4 2024	936,988	$67,079	$75.52	$68.26 - $82.49
Q3 2024	927,391	$69,962	$75.84	$70.86 - $81.63
Q2 2024	823,074	$61,023	$84.75	$71.90 - $96.98
Q1 2024	813,599	$78,594	$86.08	$79.82 - $100.38
Q4 2023	820,097	$71,668	$80.94	$67.35 - $89.11
Q3 2023	833,322	$64,074	$82.85	$75.78 - $92.30
Q2 2023	833,521	$74,183	$77.21	$67.22 - $92.36
Q1 2023	841,480	$57,936	$73.79	$65.12 - $81.15
Q4 2022	812,146	$62,763	$78.14	$68.86 - $85.37
Q3 2022	792,352	$55,187	$69.42	$57.54 - $79.26
Q2 2022	793,188	$47,916	$60.57	$53.51 - $68.39
Q1 2022	773,492	$51,522	$66.39	$49.00 - $79.73
Q4 2021	745,335	$58,904	$83.91	$75.09 - $101.05
Q3 2021	706,977	$60,842	$86.44	$80.00 - $90.85
Q2 2021	711,964	$58,965	$86.45	$80.52 - $94.35
Q1 2021	70,791	$58,182	$86.33	$74.31 - $95.28
Q4 2020	69,821	$64,534	$87.68	$78.10 - $95.12
Q3 2020	69,947	$59,351	$79.70	$66.20 - $93.90
Q2 2020	73,294	$52,088	$64.65	$52.02 - $74.71
Q1 2020	77,850	$45,714	$65.18	$50.02 - $74.67
Q4 2019	79,716	$47,694	$58.38	$51.00 - $62.35
Q3 2019	79,125	$46,937	$59.86	$55.57 - $63.94
Q2 2019	80,070	$44,364	$51.11	$46.90 - $56.27
Q1 2019	81,085	$37,820	$41.31	$32.51 - $48.49
Q4 2018	82,638	$27,877	$36.53	$31.59 - $42.50
Q3 2018	48,432	$20,382	$42.74	$39.71 - $44.84
Q2 2018	48,238	$19,904	$38.48	$34.22 - $42.25
Q1 2018	48,771	$17,688	$34.47	$29.54 - $37.86
Q4 2017	50,261	$14,925	$29.30	$26.56 - $31.47
Q3 2017	49,681	$13,327	$27.75	$25.54 - $28.80
Q2 2017	48,771	$12,856	$24.32	$20.14 - $26.88
Q1 2017	45,313	$9,390	$20.32	$18.49 - $21.24
Q4 2016	47,593	$8,971	$19.64	$17.92 - $22.44
Q3 2016	47,693	$10,327	$21.29	$20.25 - $22.48
Q2 2016	49,023	$10,719	$19.77	$17.45 - $21.88
Q1 2016	47,223	$8,886	$17.71	$14.65 - $20.50
Q4 2015	46,733	$9,659	$19.90	$16.80 - $21.35
Q3 2015	3,600	$623	$19.15	$16.35 - $22.35
Q2 2015	3,750	$755	$20.39	$19.23 - $21.67
Q1 2015	3,350	$663	$18.88	$16.88 - $20.19
Q4 2014	3,750	$689	$16.16	$13.44 - $18.96
Q3 2014	2,350	$366	$14.90	$13.85 - $16.58
Q2 2014	2,350	$372	$16.20	$14.70 - $19.34
Q1 2014	2,350	$439	$18.86	$16.38 - $21.82
Q4 2013	2,350	$434	$17.69	$16.07 - $18.84
Q3 2013	2,350	$395	$15.34	$12.98 - $17.22
Q2 2013	2,350	$303	$11.32	$10.46 - $13.07