Offerings // TRANSALTA CORP

TAC offering history

Every offering-related filing in TRANSALTA CORP’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Jul 26, 2004.

Last executed offering

None found

in filings back to Jul 26, 2004

Last registration (announced)

None found

in filings back to Jul 26, 2004

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
Jun 3, 2026	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jun 3, 2026	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jun 3, 2026	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Dec 12, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 18, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Nov 14, 2022	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jun 30, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 23, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 18, 2014	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 29, 2014	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Dec 10, 2012	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Nov 2, 2012	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Nov 19, 2010	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 9, 2010	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Nov 9, 2009	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 28, 2009	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 22, 2009	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Nov 18, 2008	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 6, 2008	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 16, 2006	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin

TAC 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 TAC workspace →

TAC offering FAQ

When did TAC last execute an offering?

No executed-offering document (424B pricing supplement or 8-K item 3.02) appears in the 1000 filings EDGAR returns for TRANSALTA CORP, reviewed back to 2004-07-26.

When did TAC last announce or register an offering?

No offering registration (S-1/S-3/F-1/F-3) appears in the filings reviewed back to 2004-07-26.

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.