Offerings // Solid Biosciences Inc.

SLDB offering history

Every offering-related filing in Solid Biosciences Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 733 filings back to Aug 4, 2017.

Last executed offering

Aug 6, 2026

424B5 — 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)
Aug 6, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 5, 2026	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Mar 31, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 31, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 19, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 19, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 6, 2026	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 27, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 15, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
May 15, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 14, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 14, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 6, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 6, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 18, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Feb 18, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 17, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 15, 2024	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Mar 13, 2024	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 8, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 30, 2024	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jan 8, 2024	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Mar 23, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Feb 6, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 26, 2023	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Dec 5, 2022	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Sep 30, 2022	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Aug 27, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Aug 16, 2021	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 24, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 19, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 18, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 15, 2021	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Dec 11, 2020	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Oct 23, 2020	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Oct 28, 2019	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 25, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 23, 2019	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Sep 3, 2019	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet

SLDB 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 SLDB workspace →

SLDB offering FAQ

When did SLDB last execute an offering?

Per SEC filings, Solid Biosciences Inc.'s most recent priced offering document is a 424B5 filed 2026-08-06. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did SLDB 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.