Offerings // Aclaris Therapeutics, Inc.

ACRS offering history

Every offering-related filing in Aclaris Therapeutics, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 865 filings back to Sep 10, 2012.

Last executed offering

Nov 18, 2024

8-K — priced deal (shares or notes)

Last registration (announced)

Aug 6, 2026

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
Aug 6, 2026	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Mar 7, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Feb 27, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Dec 31, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 31, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 19, 2024	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Nov 18, 2024	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Feb 23, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 10, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 8, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 20, 2021	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Jan 20, 2021	S-3MEF →	REGISTERED	S-3MEF registration — capacity to sell shares, not a sale yet
Jan 20, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 19, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 13, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 29, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 29, 2020	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 31, 2020	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Mar 13, 2020	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Oct 18, 2018	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 17, 2018	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 17, 2018	S-3MEF →	REGISTERED	S-3MEF registration — capacity to sell shares, not a sale yet
Aug 11, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 9, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 8, 2017	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Dec 1, 2016	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Nov 18, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 18, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 17, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 15, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 14, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 14, 2016	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Nov 3, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 2, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 2, 2016	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Sep 13, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Aug 11, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Aug 4, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 29, 2016	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 28, 2016	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)

ACRS 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 ACRS workspace →

ACRS offering FAQ

When did ACRS last execute an offering?

Per SEC filings, Aclaris Therapeutics, Inc.'s most recent priced offering document is a 8-K filed 2024-11-18. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did ACRS last announce or register an offering?

The most recent registration is a S-3ASR filed 2026-08-06. 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.