Insider trade

Officer sold ~$147K of CSGP shares in the open market

Traded Aug 7, 2026 · Filed Aug 10, 2026

CoStar GroupCSGP

~$147K
Reported value · 4,788 sh @ $30.78: 19K
Holds after · shares reported: -8.3%
stock since the trade · S&P 500 -1.2%, $30.24 → $27.72 on Oct 1

Why it stands out

CoStar Group's Chief Accounting Officer sold $147K of CoStar Group shares. Nobody planned it ahead of time.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Aug 7, 2026
Reporting period: Not applicable
Filed with the SEC: Aug 10, 2026

Officer$100K–$500K

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$147,375

Shares × reported transaction price

Timing vs results

10 days after results of Jul 28, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $30.24 on Aug 7, 2026, 11% above its 52-week low and 68% below its high, after a 6% rise over the previous 30 trading days

52-week range $27.14 (Jul 23, 2026) to $94.50 (Aug 8, 2025), 5% of the way up, from 251 adjusted closes. 30 trading days earlier: $28.64 on Jun 25, 2026. Describes the past only, not a forecast

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	+0.8%	-0.4%	+1.2%
30 days	-5.2%	-1.6%	-3.6%

Past results only. Not a forecast.

Source receipt

Record ID: 0001472762-26-000012
Filed / recorded: Aug 10, 2026, 8:06 PM UTC
Added to OQRO: Oct 2, 2026, 12:27 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: COSTAR GROUP, INC.
Issuer CIK: 1057352
Ticker: CSGP
Reporting person: Cynthia Cammett Cann
Relationship: Officer
Officer title: Chief Accounting Officer
Security: Common Stock, par value $0.01 per share
Table: Non-derivative (Table I)
Transaction date: Aug 7, 2026
Transaction code: S
Shares / units: 4,788
Price per share: $30.78
Acquired / disposed: Disposed (D)
Shares owned after: 18,822
Ownership form: Direct
Amendment: No

Around the same time

7w ago

5%+ stake

5.3%Stake

A Schedule 13G is filed by holders above 5% who say they will not try to influence the company. Index funds and large asset managers file most of them.

Why it stands out Official record

7w ago

Fund holdings