BOOM SCHEDULE 13D/A: Activist campaign
Steel Partners Holdings L.P. and affiliated entities
Filed with the SEC on · accession 0001193805-26-001449
BOOM filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Nov 10, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -4.3% by the first close after the filing.
Summary of the filing
Steel Partners Holdings L.P. and affiliated entities filed an amended Schedule 13D reporting they sold shares of DMC Global Inc. and now beneficially own approximately 4.0% of the outstanding shares, falling below the 5% threshold as of November 2, 2026.
Key details
How BOOM stock reacted
Close before
$8.12
Nov 9, 2026
First close after
-4.31%
$7.77
5 trading days
—
Since filing
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Click hereFrequently asked questions
What did BOOM file with the SEC on Nov 10, 2026?
BOOM filed a SCHEDULE 13D/A (Activist campaign). Steel Partners Holdings L.P. and affiliated entities filed an amended Schedule 13D reporting they sold shares of DMC Global Inc. and now beneficially own approximately 4.0% of the outstanding shares, falling below the 5% threshold as of November 2, 2026.
What does a activist campaign mean for BOOM stock?
A settlement removes uncertainty; the stock often reacts to whether the amount is bigger or smaller than investors expected.
How do I read a SCHEDULE 13D/A?
A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.
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 SCHEDULE 13D/A (schedule 13d/a): A report the company filed with the SEC (the US market regulator).
How did BOOM stock react to this filing?
BOOM closed at $8.12 before the filing and $7.77 on Nov 10, 2026 (-4.31%).
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