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Offerings // AMPHENOL CORP /DE/

APH offering history

Every offering-related filing in AMPHENOL CORP /DE/’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,016 filings back to May 23, 2014.

Last executed offering
May 7, 2026
424B5 — priced deal (shares or notes)
Last registration (announced)
Mar 2, 2026
S-3ASR — capacity, not a sale
Executed, last 12 months
3
424B pricings + 8-K 3.02 sales
Registered, last 12 months
1
S-1/S-3/F-series registrations
DateFilingWhat it means
May 7, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 5, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
May 5, 2026FWP →MARKETINGFree-writing prospectus — offering being marketed
Mar 25, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 24, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 24, 2026FWP →MARKETINGFree-writing prospectus — offering being marketed
Mar 2, 2026S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Oct 28, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 27, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 27, 2025FWP →MARKETINGFree-writing prospectus — offering being marketed
Jun 12, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 11, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 11, 2025FWP →MARKETINGFree-writing prospectus — offering being marketed
Jun 10, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 9, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 9, 2025FWP →MARKETINGFree-writing prospectus — offering being marketed
Oct 29, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 28, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 28, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Apr 4, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 2, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 2, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Mar 28, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 27, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 27, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
Mar 16, 2023S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Sep 9, 2021424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 8, 2021424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 8, 2021FWP →MARKETINGFree-writing prospectus — offering being marketed
Sep 7, 2021424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 16, 2020S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Feb 14, 2020424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 13, 2020424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 13, 2020FWP →MARKETINGFree-writing prospectus — offering being marketed
Sep 6, 2019424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 4, 2019424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 4, 2019FWP →MARKETINGFree-writing prospectus — offering being marketed
Jan 8, 2019424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 7, 2019424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jan 7, 2019FWP →MARKETINGFree-writing prospectus — offering being marketed
APH 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 APH workspace →
APH offering FAQ

When did APH last execute an offering?

Per SEC filings, AMPHENOL CORP /DE/'s most recent priced offering document is a 424B5 filed 2026-05-07. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did APH last announce or register an offering?

The most recent registration is a S-3ASR filed 2026-03-02. 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.