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ORKA SCHEDULE 13G/A: SEC filing

Viking Global Investors and affiliated entities

Filed with the SEC on · accession 0000905148-26-003735

ORKA filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 14, 2026. Viking Global Investors and affiliated entities filed a joint filing agreement as an amendment to their Schedule 13G regarding their position in Oruka Therapeutics. The stock moved +2.7% by the first close after the filing.

Summary of the filing

Viking Global Investors and affiliated entities filed a joint filing agreement as an amendment to their Schedule 13G regarding their position in Oruka Therapeutics. The filing is a procedural exhibit and does not disclose any change in ownership or intent.

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Key details

FilerViking Global Investors LP
Filer affiliateViking Global Opportunities Parent GP LLC
Filer affiliateViking Global Opportunities GP LLC
Filer affiliateViking Global Opportunities Portfolio GP LLC
Filer affiliateViking Global Opportunities Illiquid Investments Sub-Master LP
Filer affiliateViking Global Opportunities Drawdown GP LLC
Filer affiliateViking Global Opportunities Drawdown Portfolio GP LLC
Filer affiliateViking Global Opportunities Drawdown (Aggregator) LP
Subject companyOruka Therapeutics, Inc.
Executive committee member, viking global partners llcO. Andreas Halvorsen
Executive committee member, viking global partners llcRose S. Shabet
Authorized signatoryScott M. Hendler

How ORKA stock reacted

Close before

$108.12

Aug 13, 2026

First close after

+2.70%

$111.04

5 trading days

-3.02%

$104.86

Since filing

-4.86%

$102.86

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Frequently asked questions

What did ORKA file with the SEC on Aug 14, 2026?

ORKA filed a SCHEDULE 13G/A (SEC filing). Viking Global Investors and affiliated entities filed a joint filing agreement as an amendment to their Schedule 13G regarding their position in Oruka Therapeutics. The filing is a procedural exhibit and does not disclose any change in ownership or intent.

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 ORKA stock react to this filing?

ORKA closed at $108.12 before the filing and $111.04 on Aug 14, 2026 (+2.70%). Five trading days later: $104.86 (-3.02%).

Other ORKA SEC filings

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