{"transactions":[{"id":697832,"issuer":{"id":3416,"kind":"organization","name":"COSTAR GROUP, INC."},"owners":[{"id":26813,"kind":"person","name":"Rossmann Robin Jack","position":1,"cik":"0002146463","reported_name":"Rossmann Robin Jack","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief  Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2026-08-04T21:24:47.000Z","date":"2026-07-31","kind":"grant","planned":false,"acquired":true,"shares":34771,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of CoStar Group, Inc. common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units vest in three equal installments on August 1, 2027, August 1, 2028 and August 1, 2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units vest in three equal installments on August 1, 2027, August 1, 2028 and August 1, 2029."}],"balance_after":34771,"derivative":{"underlying":"Common Stock, par value $0.01 per share","underlying_shares":34771},"source":{"system":"sec-edgar","filing":"0002146463-26-000005","document":"wk-form4_1785878685.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1057352/000214646326000005/wk-form4_1785878685.xml","form_type":"4"}}]}