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RARE SCHEDULE 13G/A: SEC filing

AQR Capital Management LLC

Filed with the SEC on · accession 0001167557-26-000260

RARE filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Nov 13, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -1.2% by the first close after the filing.

Summary of the filing

AQR Capital Management LLC filed an amended Schedule 13G reporting beneficial ownership of 633,393 shares (0.64%) of Ultragenyx Pharmaceutical Inc. common stock as of September 30, 2026, a decrease from the previously reported 595,657 shares.

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Key details

shares beneficially owned$633K
percent of class owned$1
Filer / beneficial ownerAQR Capital Management LLC
Parent company of filerAQR Capital Management Holdings, LLC
IssuerUltragenyx Pharmaceutical Inc.
Authorized signatory, aqr capital management llcHenry Parkin

How RARE stock reacted

Close before

$16.27

Nov 12, 2026

First close after

-1.17%

$16.08

5 trading days

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Since filing

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Frequently asked questions

What did RARE file with the SEC on Nov 13, 2026?

RARE filed a SCHEDULE 13G/A (SEC filing). AQR Capital Management LLC filed an amended Schedule 13G reporting beneficial ownership of 633,393 shares (0.64%) of Ultragenyx Pharmaceutical Inc. common stock as of September 30, 2026, a decrease from the previously reported 595,657 shares.

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 RARE stock react to this filing?

RARE closed at $16.27 before the filing and $16.08 on Nov 13, 2026 (-1.17%).

Other RARE SEC filings

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