APVO 424B5: Shelf registration
Aptevo Therapeutics
Filed with the SEC on · accession 0001193125-26-441770
APVO filed a 424B5 (prospectus (offering)) with the SEC on Oct 30, 2026. Aptevo Therapeutics filed a prospectus supplement to amend its existing at-the-market (ATM) offering, increasing the amount it may sell under its S-3 shelf registration to up to $2,309,834 due to an increase in public float. The stock moved -1.5% by the first close after the filing.
Summary of the filing
Aptevo Therapeutics filed a prospectus supplement to amend its existing at-the-market (ATM) offering, increasing the amount it may sell under its S-3 shelf registration to up to $2,309,834 due to an increase in public float. The company has already sold 303,157 shares for gross proceeds of $11,799,276 under the prior prospectus.
Key details
How APVO stock reacted
Close before
$1.36
Oct 29, 2026
First close after
-1.47%
$1.34
5 trading days
-6.62%
$1.27
Since filing
-6.62%
$1.27
✦ Ask GOAX AI about this filing — what it means for APVO, what changed since its last filings and what to watch next.
Try it free for 7 days🔔 Want to stay updated on new SEC filings for APVO?
Click hereFrequently asked questions
What did APVO file with the SEC on Oct 30, 2026?
APVO filed a 424B5 (Shelf registration). Aptevo Therapeutics filed a prospectus supplement to amend its existing at-the-market (ATM) offering, increasing the amount it may sell under its S-3 shelf registration to up to $2,309,834 due to an increase in public float. The company has already sold 303,157 shares for gross proceeds of $11,799,276 under the prior prospectus.
What does a shelf registration mean for APVO stock?
New shares dilute existing holders and are often sold at a discount to the market price.
How do I read a 424B5?
The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.
How did APVO stock react to this filing?
APVO closed at $1.36 before the filing and $1.34 on Oct 30, 2026 (-1.47%). Five trading days later: $1.27 (-6.62%).
Other APVO SEC filings
Get alerts when APVO files with the SEC, plus live charts, key levels and news for 13,000+ stocks.
Try SEPT free for 7 days