Transaction · 0001701994-26-000002

LOWN CHRISTIAN M.

LOWN CHRISTIAN M., CFO, reported a transaction classified as withholding at COSTAR GROUP, INC. involving 7175.000000 shares for an estimated $320220.25. Reported holdings after the transaction were 122982.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FCFO
CSGPCOSTAR GROUP, INC.
Filing timeMar 03
Trade dateMar 01, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$46.78
Pre-filing
1mo ago +31.5%1w ago +6.6%1d ago -4.6%
Returns since
7d -1.0%30d -14.6%90d -27.6%180d -29.9%1y -29.9%

CSGP price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
CSGP since 2026-03-03Filed 190 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001701994-26-000002
Common Stock, par value $0.01 per share
Transaction date
Mar 01, 2026
Filed Mar 03, 2026, 12:00 AM · 2d delay
Shares
7.17k sh
$4.46k per share
Estimated value
-$32.0M
Computed from shares × price
Holdings after
122k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-12score
Filing-only score

-12

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Financial Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    On February 27, 2026, the last preceding business day, the closing price of the Company's common stock on Nasdaq was $44.63.

  2. F2

    Each restricted stock unit represents a contingent right to receive one share of CoStar Group, Inc. common stock.

  3. F3

    The restricted stock units vest in three equal installments on March 1, 2027, March 1, 2028 and March 1, 2029.

Original filing · 0001701994-26-000002
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Same reporting owner
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