PLUG offering history
Every offering-related filing in PLUG POWER INC’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,002 filings back to Apr 5, 2017.
| Date | Filing | What it means | |
|---|---|---|---|
| Nov 21, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Oct 8, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 30, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 22, 2025 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Aug 15, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 9, 2025 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Jul 9, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jun 6, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jun 6, 2025 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Jun 6, 2025 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| May 27, 2025 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Mar 19, 2025 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Mar 19, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 10, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Nov 12, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Nov 12, 2024 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Nov 8, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 19, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 18, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 24, 2024 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Mar 26, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 13, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 23, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 17, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 13, 2023 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Aug 25, 2022 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jun 8, 2022 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Feb 25, 2021 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 8, 2021 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Jan 28, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 26, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 7, 2021 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Nov 18, 2020 | 424B2 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Nov 16, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 21, 2020 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Aug 13, 2020 | 424B2 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Aug 11, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 23, 2020 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 19, 2020 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Apr 13, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
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.
PLUG offering FAQ
When did PLUG last execute an offering?
Per SEC filings, PLUG POWER INC's most recent priced offering document is a 8-K filed 2025-11-21. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did PLUG last announce or register an offering?
The most recent registration is a S-3ASR filed 2025-05-27. 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.