Offerings // COSTAR GROUP, INC.

CSGP offering history

Every offering-related filing in COSTAR GROUP, INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,002 filings back to Jun 1, 2011.

Last executed offering

Sep 19, 2022

424B2 — priced deal (shares or notes)

Last registration (announced)

May 19, 2020

S-3ASR — capacity, not a sale

Executed, last 12 months

424B pricings + 8-K 3.02 sales

Registered, last 12 months

S-1/S-3/F-series registrations

Date	Filing		What it means
Jun 10, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 10, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Sep 19, 2022	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Sep 14, 2022	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Sep 14, 2022	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 21, 2020	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
May 19, 2020	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
May 19, 2020	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Feb 21, 2018	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Sep 29, 2017	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Sep 25, 2017	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Sep 25, 2017	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Jun 6, 2014	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Jun 2, 2014	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Jun 2, 2014	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Jun 7, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 6, 2011	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin

CSGP offering-related filings from SEC EDGAR, newest first (capped at 40). Each links to the original document.

Two honest limits. (1) A 424B takedown can price shares or notes— EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.

Is a shelf active now? →Do they need money? →Red flags →Full CSGP workspace →

CSGP offering FAQ

When did CSGP last execute an offering?

Per SEC filings, COSTAR GROUP, INC.'s most recent priced offering document is a 424B2 filed 2022-09-19. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did CSGP last announce or register an offering?

The most recent registration is a S-3ASR filed 2020-05-19. A registration is capacity to sell shares — not a sale.

Does an offering always mean dilution?

Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.