Transaction · 0001701994-26-000004

LOWN CHRISTIAN M.

LOWN CHRISTIAN M., CFO, reported a transaction classified as grant at COSTAR GROUP, INC. involving 12268.000000 shares. Reported holdings after the transaction were 135250.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

grantSEC transaction code ACFO
CSGPCOSTAR GROUP, INC.
Filing timeMar 11
Trade dateMar 10, 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
$45.34
Pre-filing
1mo ago +10.9%1w ago +3.2%1d ago +6.8%
Returns since
7d -4.9%30d -19.6%90d -25.2%180d -27.7%1y -27.7%

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 2026-03-11Filed 182 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
grant
Code A
Identifier
0001701994-26-000004
Common Stock, par value $0.01 per share
Transaction date
Mar 10, 2026
Filed Mar 11, 2026, 12:00 AM · 1d delay
Shares
12.2k sh
Price unknown
Estimated value
—
Computed from shares × price
Holdings after
135k sh
Direct

Filing warnings

Notes recorded with this filing
1 warning
missing priceThe filing did not provide a usable price per share.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-20score
Filing-only score

-20

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

Low filing signal

This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.

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

    Pursuant to the Management Stock Purchase Plan, all or a portion of the reporting person's annual cash incentive amount was converted to Deferred Stock Units (each equivalent to one share of common st…

Original filing · 0001701994-26-000004
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

CSGP