Offerings // REPLIGEN CORP

RGEN offering history

Every offering-related filing in REPLIGEN CORP’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,001 filings back to May 20, 2009.

Last executed offering

Dec 15, 2023

8-K — priced deal (shares or notes)

Last registration (announced)

Apr 29, 2019

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
Dec 15, 2023	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Dec 7, 2023	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Nov 5, 2021	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Dec 8, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 7, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 22, 2019	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jul 17, 2019	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jul 17, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 17, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 15, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 15, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 31, 2019	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 1, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 29, 2019	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Apr 29, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 3, 2017	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jun 29, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 26, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 20, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 19, 2016	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 18, 2016	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
May 18, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 15, 2016	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Apr 4, 2016	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jun 3, 2014	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)

RGEN 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 RGEN workspace →

RGEN offering FAQ

When did RGEN last execute an offering?

Per SEC filings, REPLIGEN CORP's most recent priced offering document is a 8-K filed 2023-12-15. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did RGEN last announce or register an offering?

The most recent registration is a S-3ASR filed 2019-04-29. 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.