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BKSY 424B5: Secondary offering

BlackSky Technology Inc.

Filed with the SEC on · accession 0001628280-26-037709

BKSY filed a 424B5 (prospectus (offering)) with the SEC on May 22, 2026. The final terms of an offering of shares or bonds. The stock moved +7.2% by the first close after the filing.

Summary of the filing

BlackSky Technology Inc. filed a prospectus supplement to offer up to $250,000,000 of Class A common stock in an at-the-market offering through Deutsche Bank Securities and Craig-Hallum Capital Group, replacing a prior sales agreement.

For details, click here →How to read a 424B5 →

Key details

Maximum aggregate offering price of common stock$250.0M
Sales agent compensation rate$3
IssuerBlackSky Technology Inc.
Sales agentDeutsche Bank Securities Inc.
Sales agentCraig-Hallum Capital Group LLC

How BKSY stock reacted

Close before

$44.65

May 21, 2026

First close after

+7.21%

$47.87

5 trading days

+8.56%

$48.47

Since filing

-57.18%

$19.12

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Frequently asked questions

What did BKSY file with the SEC on May 22, 2026?

BKSY filed a 424B5 (Secondary offering). BlackSky Technology Inc. filed a prospectus supplement to offer up to $250,000,000 of Class A common stock in an at-the-market offering through Deutsche Bank Securities and Craig-Hallum Capital Group, replacing a prior sales agreement.

What does a secondary offering mean for BKSY 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 BKSY stock react to this filing?

BKSY closed at $44.65 before the filing and $47.87 on May 22, 2026 (+7.21%). Five trading days later: $48.47 (+8.56%).

Other BKSY SEC filings

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