BSEM SCHEDULE 13G: SEC filing
Jason Matuszewski
Filed with the SEC on · accession 0001213900-26-118035
BSEM filed a SCHEDULE 13G (schedule 13g) with the SEC on Nov 10, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -7.1% by the first close after the filing.
Summary of the filing
Jason Matuszewski filed a Schedule 13G reporting beneficial ownership of 3,665,899 shares, or 17.4%, of BioStem Technologies' common stock, including shares underlying vested options and convertible preferred stock.
Key details
How BSEM stock reacted
Close before
$1.12
Nov 9, 2026
First close after
-7.14%
$1.04
5 trading days
—
Since filing
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Click hereFrequently asked questions
What did BSEM file with the SEC on Nov 10, 2026?
BSEM filed a SCHEDULE 13G (SEC filing). Jason Matuszewski filed a Schedule 13G reporting beneficial ownership of 3,665,899 shares, or 17.4%, of BioStem Technologies' common stock, including shares underlying vested options and convertible preferred stock.
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 BSEM stock react to this filing?
BSEM closed at $1.12 before the filing and $1.04 on Nov 10, 2026 (-7.14%).
Other BSEM SEC filings
- SCHEDULE 13G · SEC filingNov 10, 2026
- SCHEDULE 13G · SEC filingNov 5, 2026
- 424B3 · Secondary offeringOct 13, 2026
- EFFECT · Shelf registrationOct 9, 2026
- S-1 · Shelf registrationOct 2, 2026
- 8-K · Secondary offeringSep 30, 2026
- EFFECT · SEC filingSep 29, 2026
- S-1 · SEC filingSep 18, 2026
- 8-K · Material agreementSep 18, 2026
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