MTSI SCHEDULE 13G/A: SEC filing
An institutional holder
Filed with the SEC on · accession 0001193125-26-346619
MTSI filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 12, 2026. An institutional holder filed an amended Schedule 13G regarding its beneficial ownership position in MACOM Technology Solutions Holdings (MTSI). The stock moved +3.6% by the first close after the filing.
Summary of the filing
An institutional holder filed an amended Schedule 13G regarding its beneficial ownership position in MACOM Technology Solutions Holdings (MTSI). The filing indicates a change in the holder's ownership stake.
Key details
How MTSI stock reacted
Close before
$299.93
Aug 11, 2026
First close after
+3.61%
$310.75
5 trading days
-2.35%
$292.88
Since filing
-29.66%
$210.98
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Click hereFrequently asked questions
What did MTSI file with the SEC on Aug 12, 2026?
MTSI filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G regarding its beneficial ownership position in MACOM Technology Solutions Holdings (MTSI). The filing indicates a change in the holder's ownership stake.
How do I read a SCHEDULE 13G/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 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).
How did MTSI stock react to this filing?
MTSI closed at $299.93 before the filing and $310.75 on Aug 12, 2026 (+3.61%). Five trading days later: $292.88 (-2.35%).
Other MTSI SEC filings
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