Chief Financial Officer · COSTAR GROUP, INC. (CSGP)

Christian Lown

A named executive officer of COSTAR in every fiscal year CompBrief holds from FY2024 to FY2025. Every figure below is printed as the company filed it and cited to the filing it came from.

Total disclosed compensation, FY2025

$7,970,423

FY2024: $3,540,510

Compensation figures as of the proxy filed April 30, 2026 (DEF 14A). Insider transactions since that proxy, current to 2026-09-24.

Christian Lown compensation by year

COSTAR Summary Compensation Table · all 2 fiscal years held
In US dollars, as COSTAR reports it. Most recent year shaded. Totals are the company’s disclosed totals.
ComponentFY2024FY2025
Salary$253,846$588,269
Bonus$0$0
Stock awards$2,750,035$5,488,266
Option awards$0$739,161
Non-equity incentive$525,355$1,137,000
Pension and deferred compensation$0$0
All other$11,274$17,727
Total$3,540,510$7,970,423

Each year as stated in that year's proxy. A dash means the company reported no figure in that column. Source: COSTAR GROUP, INC. DEF 14A filed April 30, 2026, accession 0001193125-26-197205, and prior-year filings. Open the filing on EDGAR.

$3.5M
$8.0M
FY24
FY25
SalaryNon-equity incentiveStock awardsOption awardsAll other

Equity holdings

unvested awards at FY2025 year-end
TypeUnvested unitsValue at year-endExercise price
PSU50,400$3,388,896—
RSU47,200$3,173,728—
RSU24,816$1,668,628—
Option24,600—$78.33

Per the Outstanding Equity Awards at Fiscal Year-End table in COSTAR GROUP, INC.'s FY2025 proxy; value at the fiscal year-end close, as the company printed it.

Insider transactions since the last proxy

1 Form 4 line since the FY2025 proxy (filed April 30, 2026)
current to 2026-09-24 · updated nightly
DateTransactionPlanSharesPriceHeld after
2026-07-01Tax withholding—5,597$29.36129,653

The 1 most recent of 1 lines, each as reported on the Form 4. "10b5-1" marks a trade the filing reports under a pre-arranged trading plan. View every Form 4 filing on EDGAR →

COSTAR’s named executive officers, FY2025

as the company reported each
Named executive officerRoleFY2025 total
Andrew FloranceFounder and Chief Executive Officer$36,431,936
Frank SimuroChief Technology Officer$10,303,439
Frederick SaintPresident, Marketplaces$8,188,206
Christian Lown · this pageChief Financial Officer$7,970,423
Lisa RugglesSenior Vice President, Global Operations$5,828,826

The full COSTAR compensation record

free company brief

This page is one person within COSTAR's record. The company brief lists every named executive, each linking to their own page.

Compensation, the day it’s disclosed

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How this record is built

Every figure on this page is one figure from a public SEC filing, printed as the filing states it and cited to the document. Compensation totals are COSTAR's own disclosed totals, not summed by Velarion. Insider transactions are read from Form 4 filings and cover every line filed since the most recent proxy. Nothing is estimated by Velarion; where the company does not disclose a value the cell reads "—", and a section appears only where the company discloses the data. Corrections: records@velarion.ai.

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