AMPL offering history
Every offering-related filing in Amplitude, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 499 filings back to Jun 11, 2021.
| Date | Filing | What it means | |
|---|---|---|---|
| Dec 21, 2021 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Nov 9, 2021 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Nov 9, 2021 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Sep 28, 2021 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Sep 27, 2021 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Sep 23, 2021 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Sep 21, 2021 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 13, 2021 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Aug 30, 2021 | S-1 → | REGISTERED | S-1 registration — capacity to sell shares, not a sale yet |
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.
AMPL offering FAQ
When did AMPL last execute an offering?
Per SEC filings, Amplitude, Inc.'s most recent priced offering document is a 424B4 filed 2021-09-28. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did AMPL last announce or register an offering?
The most recent registration is a S-1/A filed 2021-09-13. 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.