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CoStar shares owned by Louisbourg Investments

Quarter-by-quarter ownership of CoStar (CSGP) shares owned by Louisbourg Investments from 13F filings

Historical chart of Louisbourg Investments investment in CoStar

Tip: Access up to 7 years of quarterly data

All positions including CoStar held by Louisbourg Investments consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in CoStar by Louisbourg Investments

Quarter filed Position value Share count Share price at filing
2025-09-30 $1.1M 16k 67.05
2025-06-30 $1.7M 27k 62.62

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View all positions for Louisbourg Investments

Top funds holding CoStar

Vanguard Group
BlackRock
Bamco
Principal Financial Group
State Street Corporation
Geode Capital Management
Akre Capital Management
Baillie Gifford & Co
Morgan Stanley
Massachusetts Financial Services
Capital Research and Management Company - Division 3
Polen Capital Management
Henderson Group
Mizuho Markets Americas
Capital Research Global Investors

View all funds holding CoStar