American Capital Management’s CoStar Group CSGP Stock Holding History

American Capital Management’s Portfolio CSGP Stock Details CSGP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$33.3M	Sell	825,296 -44	-0%	-$2.29K	1.79%	26
2025 Q4	$55.5M	Buy	825,340 +31,676	+4%	+$2.24M	2.45%	13
2025 Q3	$67M	Sell	793,664 -2,297	-0.3%	-$203K	2.67%	13
2025 Q2	$64M	Sell	795,961 -142,181	-15%	-$11.1M	2.65%	15
2025 Q1	$74.3M	Buy	938,142 +1,154	+0.1%	+$87.8K	3.02%	12
2024 Q4	$67.1M	Buy	936,988 +9,597	+1%	+$725K	2.5%	17
2024 Q3	$70M	Buy	927,391 +104,317	+13%	+$7.91M	2.29%	16
2024 Q2	$61M	Buy	823,074 +9,475	+1%	+$803K	2.04%	18
2024 Q1	$78.6M	Sell	813,599 -6,498	-0.8%	-$559K	2.52%	15
2023 Q4	$71.7M	Sell	820,097 -13,225	-2%	-$1.07M	2.45%	16
2023 Q3	$64.1M	Sell	833,322 -199	-0%	-$16.5K	2.47%	16
2023 Q2	$74.2M	Sell	833,521 -7,959	-0.9%	-$614K	2.58%	15
2023 Q1	$57.9M	Buy	841,480 +29,334	+4%	+$2.16M	2.04%	18
2022 Q4	$62.8M	Buy	812,146 +19,794	+2%	+$1.55M	2.46%	16
2022 Q3	$55.2M	Sell	792,352 -836	-0.1%	-$58K	2.18%	17
2022 Q2	$47.9M	Buy	793,188 +19,696	+3%	+$1.19M	1.8%	21
2022 Q1	$51.5M	Buy	773,492 +28,157	+4%	+$1.87M	1.52%	22
2021 Q4	$58.9M	Buy	745,335 +38,358	+5%	+$3.22M	1.51%	24
2021 Q3	$60.8M	Sell	706,977 -4,987	-0.7%	-$431K	1.63%	22
2021 Q2	$59M	Buy	711,964 +4,054	+0.6%	+$350K	1.65%	22
2021 Q1	$58.2M	Buy	707,910 +9,700	+1%	+$837K	1.76%	20
2020 Q4	$64.5M	Sell	698,210 -1,260	-0.2%	-$110K	1.93%	22
2020 Q3	$59.4M	Sell	699,470 -33,470	-5%	-$2.67M	2.18%	20
2020 Q2	$52.1M	Sell	732,940 -45,560	-6%	-$2.95M	1.92%	21
2020 Q1	$45.7M	Sell	778,500 -18,660	-2%	-$1.22M	2.22%	20
2019 Q4	$47.7M	Buy	797,160 +5,910	+0.7%	+$345K	2%	23
2019 Q3	$46.9M	Sell	791,250 -9,450	-1%	-$566K	2.08%	21
2019 Q2	$44.4M	Sell	800,700 -10,150	-1%	-$519K	1.9%	23
2019 Q1	$37.8M	Sell	810,850 -15,530	-2%	-$642K	1.75%	24
2018 Q4	$27.9M	Buy	826,380 +342,060	+71%	+$12.5M	1.49%	25
2018 Q3	$20.4M	Buy	484,320 +1,940	+0.4%	+$82.9K	0.89%	36
2018 Q2	$19.9M	Sell	482,380 -5,330	-1%	-$205K	1.03%	33
2018 Q1	$17.7M	Sell	487,710 -14,900	-3%	-$514K	1.01%	36
2017 Q4	$14.9M	Buy	502,610 +5,800	+1%	+$170K	0.9%	36
2017 Q3	$13.3M	Buy	496,810 +9,100	+2%	+$253K	0.83%	37
2017 Q2	$12.9M	Buy	487,710 +34,580	+8%	+$841K	0.83%	38
2017 Q1	$9.39M	Sell	453,130 -22,800	-5%	-$463K	0.66%	39
2016 Q4	$8.97M	Sell	475,930 -1,000	-0.2%	-$19.6K	0.69%	38
2016 Q3	$10.3M	Sell	476,930 -13,300	-3%	-$283K	0.79%	39
2016 Q2	$10.7M	Buy	490,230 +18,000	+4%	+$356K	0.89%	37
2016 Q1	$8.89M	Buy	472,230 +4,900	+1%	+$86.8K	0.78%	39
2015 Q4	$9.66M	Buy	467,330 +431,330	+1,198%	+$8.58M	0.86%	35
2015 Q3	$623K	Sell	36,000 -1,500	-4%	-$28.7K	0.06%	64
2015 Q2	$755K	Buy	37,500 +4,000	+12%	+$81.6K	0.07%	65
2015 Q1	$663K	Sell	33,500 -4,000	-11%	-$75.5K	0.07%	64
2014 Q4	$689K	Buy	37,500 +14,000	+60%	+$226K	0.07%	65
2014 Q3	$366K	Hold	23,500	–	–	0.04%	73
2014 Q2	$372K	Hold	23,500	–	–	0.04%	73
2014 Q1	$439K	Hold	23,500	–	–	0.05%	71
2013 Q4	$434K	Hold	23,500	–	–	0.05%	73
2013 Q3	$395K	Hold	23,500	–	–	0.05%	79
2013 Q2	$303K	Buy	+23,500	New	+$266K	0.05%	79

Other funds holding CSGP

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return

Polen Capital Management Boca Raton, Florida $14.5B AUM 5.7% 1-Year Est. Return

American Capital Management's CSGP Position: Q1 2026 in Review

American Capital Management reduced its CoStar Group (CSGP) stake by 0.01% in Q1 2026, selling an estimated $2.29K and leaving 825,296 shares worth $33.3M. The position accounts for 1.79% of the portfolio, ranked #26.

American Capital Management first reported a position in CSGP in Q2 2013 and has held it in 52 quarters since. The position peaked at $78.6M in Q1 2024. 792 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

American Capital Management held 825,296 shares of CoStar Group worth $33.3M as of Q1 2026.
American Capital Management sold 44 CoStar Group shares in Q1 2026, an estimated $2.29K.
CoStar Group made up 1.79% of American Capital Management's portfolio in Q1 2026, its #26 holding.
American Capital Management first reported a position in CoStar Group in Q2 2013 and has held it in 52 quarters since.
American Capital Management's CoStar Group position peaked at $78.6M in Q1 2024.
792 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on American Capital Management's 13F filing for Q1 2026, filed 15 May 2026.