BAMCO INC /NY/

CIK

1017918

City

NEW YORK

State / Country

Stock

CSGP — Costar Group, Inc.

Top Portfolio Positions

320 positions · $33,376,124,449 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
TSLA	Tesla, Inc. Consumer Cyclical	11,933,509	$4,436,281,970	13.29%
ACGL	Arch Capital Group Ltd. Financial Services	16,709,759	$1,603,969,766	4.81%
MSCI	MSCI Inc. Financial Services	2,699,389	$1,454,997,664	4.36%
MTN	Vail Resorts Inc Consumer Cyclical	10,087,066	$1,294,372,308	3.88%
GWRE	Guidewire Software, Inc. Technology	6,597,453	$986,715,070	2.96%
IT	Gartner Inc Technology	5,917,616	$936,995,317	2.81%
IDXX	Idexx Laboratories Inc /De Healthcare	1,633,367	$917,772,583	2.75%
H	Hyatt Hotels Corp Consumer Cyclical	6,341,673	$911,869,160	2.73%
FIGS	FIGS, Inc. Consumer Cyclical	59,959,449	$885,601,061	2.65%
FDS	Factset Research Systems Inc Financial Services	3,756,587	$815,141,813	2.44%

Portfolio Trend

25 quarters · across all stocks

Holdings in CSGP

Compact Export CSV

Shares Held

Position Value (USD)

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$658,113,819	16,314,175	-16.3%	Shares	Defined	2026-05-15
2025-12-31	$1,311,052,176	19,498,099	+1.3%	Shares	Defined	2026-02-17
2025-09-30	$1,624,592,103	19,255,566	-2.2%	Shares	Defined	2025-11-14
2025-06-30	$1,582,266,774	19,679,935	+3.4%	Shares	Defined	2025-08-14
2025-03-31	$1,507,946,718	19,032,522	-0.9%	Shares	Defined	2025-05-15
2024-12-31	$1,374,783,146	19,203,564	+2.2%	Shares	Defined	2025-02-14
2024-09-30	$1,417,173,291	18,785,436	-2.5%	Shares	Defined	2024-11-14
2024-06-30	$1,428,751,791	19,270,998	-0.3%	Shares	Defined	2024-08-14
2024-03-31	$1,868,013,898	19,337,618	-0.3%	Shares	Defined	2024-05-15
2023-12-31	$1,694,604,221	19,391,283	+1.0%	Shares	Defined	2024-02-14
2023-09-30	$1,476,019,038	19,196,502	+0.5%	Shares	Defined	2023-11-14
2023-06-30	$1,700,354,167	19,105,103	+0.7%	Shares	Defined	2023-08-14
2023-03-31	$1,306,090,076	18,970,081	-0.7%	Shares	Defined	2023-05-15
2022-12-31	$1,476,836,487	19,110,203	-0.8%	Shares	Defined	2023-02-14
2022-09-30	$1,341,102,392	19,254,880	+0.1%	Shares	Defined	2022-11-14
2022-06-30	$1,162,138,583	19,237,520	+2.1%	Shares	Defined	2022-08-15
2022-03-31	$1,255,543,413	18,849,173	+1.9%	Shares	Defined	2022-05-13
2021-12-31	$1,461,959,452	18,498,791	-0.8%	Shares	Defined	2022-02-14
2021-09-30	$1,604,135,938	18,639,739	-0.8%	Shares	Defined	2021-11-12
2021-06-30	$1,556,457,793	18,793,260	+868.6%	Shares	Defined	2021-08-13
2021-03-31	$159,467,946	1,940,259	+0.3%	Shares	Defined	2021-05-19
2020-12-31	$178,809,637	1,934,583	-3.4%	Shares	Defined	2021-02-12
2020-09-30	$169,954,092	2,002,971	-4.7%	Shares	Defined	2020-11-13
2020-06-30	$149,308,142	2,100,949	+0.0%	Shares	Defined	2020-08-14
2020-03-31	$123,314,041	2,099,999	—	Shares	Defined	2020-05-15
No 13F history on record for this holder in this stock.