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CoStar shares owned by Bank of Marin

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

Historical chart of Bank of Marin investment in CoStar

Tip: Access up to 7 years of quarterly data

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

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Quarterly reported holdings in CoStar by Bank of Marin

Quarter filed Position value Share count Share price at filing
2025-09-30 $500k 5.9k 84.37
2025-06-30 $457k 5.7k 80.40
2025-03-31 $421k 5.3k 79.23

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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