QTRX offering history
Every offering-related filing in Quanterix Corp’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Feb 27, 2018.
| Date | Filing | What it means | |
|---|---|---|---|
| Jun 16, 2025 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Jun 12, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Apr 15, 2025 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Apr 14, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Feb 4, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 3, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 6, 2020 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Aug 7, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 6, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 6, 2020 | S-3MEF → | REGISTERED | S-3MEF registration — capacity to sell shares, not a sale yet |
| Aug 9, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 7, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 2, 2019 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jun 26, 2019 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 13, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 10, 2019 | S-3/A → | REGISTERED | S-3/A registration — capacity to sell shares, not a sale yet |
| May 10, 2019 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Mar 19, 2019 | S-3 → | REGISTERED | S-3 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.
QTRX offering FAQ
When did QTRX last execute an offering?
Per SEC filings, Quanterix Corp's most recent priced offering document is a 424B5 filed 2021-02-04. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did QTRX last announce or register an offering?
The most recent registration is a S-3ASR filed 2020-11-06. 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.