ATEN offering history
Every offering-related filing in A10 Networks, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 902 filings back to Jul 10, 2013.
| Date | Filing | What it means | |
|---|---|---|---|
| Aug 7, 2026 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Aug 7, 2026 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Aug 5, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 20, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 17, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 21, 2014 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Mar 21, 2014 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Mar 21, 2014 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Mar 20, 2014 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Mar 13, 2014 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Mar 13, 2014 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Mar 10, 2014 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Feb 18, 2014 | 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.
ATEN offering FAQ
When did ATEN last execute an offering?
Per SEC filings, A10 Networks, Inc.'s most recent priced offering document is a 8-K filed 2026-08-05. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did ATEN last announce or register an offering?
The most recent registration is a S-3ASR filed 2026-08-07. 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.