Offerings // Silence Therapeutics plc

SLN offering history

Every offering-related filing in Silence Therapeutics plc’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 266 filings back to Jan 5, 2010.

Last executed offering

Aug 12, 2026

424B5 — priced deal (shares or notes)

Last registration (announced)

Aug 11, 2026

S-3MEF — 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 12, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 11, 2026	S-3MEF →	REGISTERED	S-3MEF registration — capacity to sell shares, not a sale yet
Aug 10, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 27, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 27, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 18, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Oct 22, 2024	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
May 14, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 14, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 7, 2024	F-3 →	REGISTERED	F-3 registration — capacity to sell shares, not a sale yet
Aug 12, 2022	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 22, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 22, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 20, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 20, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 15, 2021	F-3 →	REGISTERED	F-3 registration — capacity to sell shares, not a sale yet
Apr 12, 2021	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Apr 12, 2021	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Apr 8, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 8, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 15, 2021	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Mar 12, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 11, 2021	F-1/A →	REGISTERED	F-1/A registration — capacity to sell shares, not a sale yet
Mar 9, 2021	F-1 →	REGISTERED	F-1 registration — capacity to sell shares, not a sale yet
Oct 2, 2020	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Sep 8, 2020	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Sep 4, 2020	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Aug 26, 2020	F-1/A →	REGISTERED	F-1/A registration — capacity to sell shares, not a sale yet
Aug 20, 2020	F-1 →	REGISTERED	F-1 registration — capacity to sell shares, not a sale yet

SLN 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 SLN workspace →

SLN offering FAQ

When did SLN last execute an offering?

Per SEC filings, Silence Therapeutics plc's most recent priced offering document is a 424B5 filed 2026-08-12. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did SLN last announce or register an offering?

The most recent registration is a S-3MEF filed 2026-08-11. 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.