IOSP SCHEDULE 13G: SEC filing
A Schedule 13G was
Filed with the SEC on · accession 0001890906-26-000068
IOSP filed a SCHEDULE 13G (schedule 13g) with the SEC on Oct 7, 2026. A Schedule 13G was filed regarding INNOSPEC INC. (IOSP), indicating a passive ownership position by an institutional or other holder. The stock moved -1.1% by the first close after the filing.
Summary of the filing
A Schedule 13G was filed regarding INNOSPEC INC. (IOSP), indicating a passive ownership position by an institutional or other holder. The filing text provided does not disclose the holder's identity, ownership percentage, or share count.
Key details
How IOSP stock reacted
Close before
$98.55
Oct 6, 2026
First close after
-1.15%
$97.42
5 trading days
-1.14%
$97.43
Since filing
-19.71%
$79.13
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Click hereFrequently asked questions
What did IOSP file with the SEC on Oct 7, 2026?
IOSP filed a SCHEDULE 13G (SEC filing). A Schedule 13G was filed regarding INNOSPEC INC. (IOSP), indicating a passive ownership position by an institutional or other holder. The filing text provided does not disclose the holder's identity, ownership percentage, or share count.
How do I read a SCHEDULE 13G?
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 (schedule 13g): A report the company filed with the SEC (the US market regulator).
How did IOSP stock react to this filing?
IOSP closed at $98.55 before the filing and $97.42 on Oct 7, 2026 (-1.15%). Five trading days later: $97.43 (-1.14%).
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