JTTT SCHEDULE 13G: SEC filing

Commodore Capital LP and affiliated entities

Filed with the SEC on · accession 0001831942-26-000043

JTTT filed a SCHEDULE 13G (schedule 13g) with the SEC on Sep 2, 2026. Commodore Capital LP and affiliated entities filed a Schedule 13G disclosing beneficial ownership of 400,000 ordinary shares, or 5.2%, of JATT III Acquisition Corp, a blank check company. The stock moved -0.7% by the first close after the filing.

Summary of the filing

Commodore Capital LP and affiliated entities filed a Schedule 13G disclosing beneficial ownership of 400,000 ordinary shares, or 5.2%, of JATT III Acquisition Corp, a blank check company. The filing is a passive investment disclosure under Rule 13d-1(c).

Key details

Ordinary shares beneficially owned$400K
Percentage of class beneficially ownedPCT 5
Reporting person / investment managerCommodore Capital LP
Reporting person / beneficial ownerCommodore Capital Master LP
Issuer / subject companyJATT III Acquisition Corp
Managing partner, commodore capital lpMichael Kramarz
Managing partner, commodore capital lpRobert Egen Atkinson

How JTTT stock reacted

Close before

$11.04

Sep 1, 2026

First close after

-0.72%

$10.96

5 trading days

+0.54%

$11.10

Since filing

-6.34%

$10.34

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Frequently asked questions

What did JTTT file with the SEC on Sep 2, 2026?

JTTT filed a SCHEDULE 13G (SEC filing). Commodore Capital LP and affiliated entities filed a Schedule 13G disclosing beneficial ownership of 400,000 ordinary shares, or 5.2%, of JATT III Acquisition Corp, a blank check company. The filing is a passive investment disclosure under Rule 13d-1(c).

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 JTTT stock react to this filing?

JTTT closed at $11.04 before the filing and $10.96 on Sep 2, 2026 (-0.72%). Five trading days later: $11.10 (+0.54%).

Other JTTT SEC filings

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