Offerings // Adaptive Biotechnologies Corp

ADPT offering history

Every offering-related filing in Adaptive Biotechnologies Corp’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 799 filings back to Dec 28, 2009.

Last executed offering

Jun 22, 2026

8-K — priced deal (shares or notes)

Last registration (announced)

Jul 14, 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 22, 2026	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Aug 21, 2020	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Jul 16, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 14, 2020	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Jul 14, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 24, 2020	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Jan 23, 2020	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 22, 2020	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jan 21, 2020	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Jun 27, 2019	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Jun 26, 2019	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jun 26, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jun 19, 2019	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jun 17, 2019	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
May 30, 2019	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet

ADPT 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 ADPT workspace →

ADPT offering FAQ

When did ADPT last execute an offering?

Per SEC filings, Adaptive Biotechnologies Corp's most recent priced offering document is a 8-K filed 2026-06-22. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did ADPT last announce or register an offering?

The most recent registration is a S-3ASR filed 2020-07-14. 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.