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Offerings // MESOBLAST LTD

MESO offering history

Every offering-related filing in MESOBLAST LTD’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 587 filings back to Nov 8, 2005.

Last executed offering
Nov 13, 2015
424B4 — priced deal (shares or notes)
Last registration (announced)
Dec 31, 2025
F-3ASR — capacity, not a sale
Executed, last 12 months
0
424B pricings + 8-K 3.02 sales
Registered, last 12 months
2
S-1/S-3/F-series registrations
DateFilingWhat it means
Jan 14, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jan 14, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 31, 2025F-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Dec 30, 2025F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Feb 12, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 12, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Feb 6, 2025F-3/A →REGISTEREDF-3/A registration — capacity to sell shares, not a sale yet
Feb 5, 2025F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Dec 27, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 27, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 23, 2024F-3/A →REGISTEREDF-3/A registration — capacity to sell shares, not a sale yet
Dec 13, 2024F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Apr 26, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 24, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Apr 16, 2024F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
May 26, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
May 26, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 18, 2023F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Apr 4, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 3, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Mar 24, 2023F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Dec 30, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 30, 2022EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 27, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 22, 2022EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 20, 2022F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Sep 12, 2022EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Aug 31, 2022F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Jan 24, 2022F-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Apr 7, 2021F-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Mar 23, 2021F-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Jul 21, 2017EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jul 10, 2017F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Nov 13, 2015424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Nov 12, 2015F-1MEF →REGISTEREDF-1MEF registration — capacity to sell shares, not a sale yet
Nov 12, 2015EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Nov 9, 2015F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
Nov 6, 2015F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
Nov 2, 2015F-1 →REGISTEREDF-1 registration — capacity to sell shares, not a sale yet
Oct 19, 2015EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
MESO 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 MESO workspace →
MESO offering FAQ

When did MESO last execute an offering?

Per SEC filings, MESOBLAST LTD's most recent priced offering document is a 424B4 filed 2015-11-13. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did MESO last announce or register an offering?

The most recent registration is a F-3ASR filed 2025-12-31. 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.