SCHEDULE: Vanguard Group Amends CoStar Stake to Zero

The Vanguard Group has filed an amendment to its Schedule 13G for CoStar Group Inc., reporting zero beneficial ownership following an internal realignment.

Summary

• The Vanguard Group filed Amendment No. 13 to its Schedule 13G for CoStar Group Inc. (CUSIP: 22160N109).
• The filing reports 0 shares beneficially owned, representing 0% of CoStar Group Inc.'s Common Stock.
• This change is a result of an internal realignment within The Vanguard Group, Inc. that occurred on January 12, 2026.
• Following the realignment, certain subsidiaries or business divisions of Vanguard will now report their beneficial ownership separately (on a disaggregated basis) in reliance on SEC Release No. 34-39538.
• The Vanguard Group, Inc. no longer has, or is deemed to have, beneficial ownership over the securities beneficially owned by these subsidiaries and/or business divisions.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral administrative filing. It clarifies Vanguard's reporting structure but does not indicate a change in investment sentiment towards CoStar Group Inc. or its prospects.

Future Outlook

This filing does not contain any forward-looking statements or guidance regarding CoStar Group Inc.'s financial performance or strategic direction.

Management Comments

• On January 12, 2026, The Vanguard Group, Inc. went through an internal realignment. In accordance with SEC Release No. 34-39538 (January 12, 1998), certain subsidiaries or business divisions of subsidiaries of The Vanguard Group, Inc., that formerly had, or were deemed to have, beneficial ownership with The Vanguard Group, Inc., will report beneficial ownership separately (on a disaggregated basis) from The Vanguard Group, Inc. in reliance on such release.
• These subsidiaries and/or business divisions pursue the same investment strategies as previously pursued by The Vanguard Group, Inc. prior to the realignment.
• Further in accordance with SEC Release No. 34-39538 (January 12, 1998), The Vanguard Group, Inc. no longer has, or is deemed to have, beneficial ownership over securities beneficially owned by such subsidiaries and/or business divisions.

Industry Context

StockSavvy.ai notes that such administrative filings are common among large institutional investors like Vanguard, especially after internal reorganizations or changes in reporting methodologies. This filing does not reflect a change in investment strategy towards CoStar Group Inc. by Vanguard's underlying funds, but rather a change in how beneficial ownership is reported at the parent entity level.

Comparison to Industry Standards

• This filing is an administrative update regarding beneficial ownership reporting by a large institutional investor, not a performance report for CoStar Group Inc. Therefore, direct comparisons to industry standards for financial performance or operational metrics are not applicable.

Stakeholder Impact

• Shareholders of CoStar Group Inc. should understand that this filing represents an administrative change in how The Vanguard Group reports its holdings, not a divestment of CoStar shares by Vanguard's underlying funds. The underlying investment strategies remain the same, with beneficial ownership now reported by specific subsidiaries.

Next Steps

• Vanguard's subsidiaries and/or business divisions will now report their beneficial ownership of CoStar Group Inc. securities separately.

Key Dates

Keywords

Vanguard Group, CoStar Group Inc, Schedule 13G, Beneficial Ownership, SEC Filing, Investment Adviser, Common Stock, Institutional Ownership