SCHEDULE: Jane Street Group Discloses 4.7% Stake in IREN Ltd

Jane Street Group, LLC and its affiliates reported a 4.7% beneficial ownership stake in IREN Ltd as of December 31, 2025, primarily through shared voting and dispositive power.

Summary

• Jane Street Group, LLC and its affiliates (Jane Street Capital, LLC, Jane Street Options, LLC, and Jane Street Global Trading, LLC) collectively beneficially own 15,447,088.34 ordinary shares of IREN Ltd.
• This ownership represents 4.7% of IREN Ltd's ordinary shares outstanding.
• The reported holding includes 342,817.34 shares acquirable within 60 days through convertible bonds held by Jane Street Global Trading, LLC.
• The percentage of class calculation is based on 328,341,694 shares outstanding as indicated in a prospectus published on December 4, 2025, plus the 342,817.34 acquirable shares, totaling 328,684,511.3 shares.
• The filing is an Amendment No. 2 to a Schedule 13G, indicating a passive investment without intent to influence control.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a moderately positive development, as a significant passive stake by a reputable institutional investor like Jane Street Group can lend credibility to IREN Ltd, though it doesn't imply active management involvement or a strategic partnership.

Positives

• A significant institutional investor, Jane Street Group, holds a substantial stake, potentially signaling confidence in IREN Ltd's long-term prospects.
• The investment is passive, as certified by Jane Street, indicating no immediate intent to influence control or disrupt current management.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that the disclosure of a significant stake by a prominent quantitative trading firm like Jane Street Group can sometimes be interpreted by the market as a vote of confidence, particularly for smaller or less-covered companies. While Jane Street's primary business involves market making and proprietary trading, their passive 13G filing indicates a strategic, non-control-seeking investment in IREN Ltd.

Stakeholder Impact

• Shareholders: Increased institutional ownership may enhance market liquidity and potentially signal investor confidence.
• Management: No direct impact on management control or strategy, as the investment is passive and not intended to influence control.

Key Dates

Recommendation

The filing indicates a significant, passive institutional investment by Jane Street Group, which can be seen as a positive signal of market confidence. However, as a Schedule 13G, it does not provide new operational or financial performance data for IREN Ltd. Therefore, while the institutional interest is noteworthy, it does not fundamentally alter the investment thesis for existing shareholders, warranting a 'hold' recommendation based solely on this disclosure.

Keywords

IREN Ltd, Jane Street Group, Beneficial Ownership, Schedule 13G, Institutional Investor, Ordinary Shares, Convertible Bonds, Passive Investment