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Stocks/KPET/SEC Filings/SCHEDULE 13G Aug 12, 2026

KPET SCHEDULE 13G: SEC filing

Adage Capital Management, L.P., Robert Atchinson, and Phillip Gross

Filed with the SEC on Aug 12, 2026 · accession 0000919574-26-004963

KPET filed a SCHEDULE 13G (schedule 13g) with the SEC on Aug 12, 2026. Adage Capital Management, L.P., Robert Atchinson, and Phillip Gross filed a joint filing agreement as part of a Schedule 13G disclosing their beneficial ownership position in KPET Ultra Paceline Corp. The filing indicates a passive investment stake with no stated intent to influence control of the… The stock moved -0.7% by the first close after the filing.

Summary of the filing

Adage Capital Management, L.P., Robert Atchinson, and Phillip Gross filed a joint filing agreement as part of a Schedule 13G disclosing their beneficial ownership position in KPET Ultra Paceline Corp. The filing indicates a passive investment stake with no stated intent to influence control of the company.

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Key details

Filer / beneficial ownerAdage Capital Management, L.P.
Subject companyKPET Ultra Paceline Corp
Managing member, adage capital partners, l.l.c.Robert Atchinson
Individual filerPhillip Gross

How KPET stock reacted

Close before

$10.05

Jul 30, 2026

First close after

-0.75%

$9.97

5 trading days

-0.60%

$9.99

Since filing

-0.50%

$10.00

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Frequently asked questions

What did KPET file with the SEC on Aug 12, 2026?

KPET filed a SCHEDULE 13G (SEC filing). Adage Capital Management, L.P., Robert Atchinson, and Phillip Gross filed a joint filing agreement as part of a Schedule 13G disclosing their beneficial ownership position in KPET Ultra Paceline Corp. The filing indicates a passive investment stake with no stated intent to influence control of the company.

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 KPET stock react to this filing?

KPET closed at $10.05 before the filing and $9.97 on Aug 14, 2026 (-0.75%). Five trading days later: $9.99 (-0.60%).

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Source: SEC EDGAR filing 0000919574-26-004963. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.