Offerings // PERMA FIX ENVIRONMENTAL SERVICES INC

PESI offering history

Every offering-related filing in PERMA FIX ENVIRONMENTAL SERVICES INC’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Aug 4, 2011.

Last executed offering
May 15, 2026
424B5 — priced deal (shares or notes)
Last registration (announced)
Dec 2, 2024
S-3 — capacity, not a sale
Executed, last 12 months
2
424B pricings + 8-K 3.02 sales
Registered, last 12 months
0
S-1/S-3/F-series registrations
DateFilingWhat it means
May 15, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 14, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 18, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 17, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 12, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 2, 2024S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
May 24, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
May 23, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 1, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 19, 2023S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Oct 4, 2021424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 22, 2019EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 13, 2019S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Nov 4, 20118-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
PESI 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 PESI workspace →
PESI offering FAQ

When did PESI last execute an offering?

Per SEC filings, PERMA FIX ENVIRONMENTAL SERVICES INC's most recent priced offering document is a 424B5 filed 2026-05-15. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did PESI last announce or register an offering?

The most recent registration is a S-3 filed 2024-12-02. 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.

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