IREN in the 13F filings
Iris Energy LTD · CUSIP Q4982L109
- Quarter end
- 30 Sep 2025
- the date the book describes
- Filed
- 14 Nov 2025
- latest of these filings; the earliest 31 Oct 2025
- Managers listing it
- 11
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q2 2025 and Q3 2025; 2 listed it in both
- Shares listed
- 38,082,216
- combined, among listed positions
- Reported value
- $1.8bn
- combined, at the quarter end
Among the 95 comparable managers: 9 buyers (opened or added shares) and 2 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing IREN in Q3 2025
11 of 11 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Jane Street Group LLC | 11,710,138 | $550m | 0.08% | Added | +3,358,815 | 14 Nov 2025 (the filing on sec.gov) |
| D. E. Shaw & Co. | 10,717,054 | $503m | 0.28% | New | new | 14 Nov 2025 (the filing on sec.gov) |
| Two Sigma Investments LP | 5,143,276 | $241m | 0.36% | Added | n.a. | 14 Nov 2025 (the filing on sec.gov) |
| Discovery Capital Management LLC | 3,365,700 | $158m | 8.66% | Trimmed | -784,600 | 14 Nov 2025 (the filing on sec.gov) |
| Marshall Wace LLP | 2,032,397 | $95m | 0.10% | Added | n.a. | 13 Nov 2025 (the filing on sec.gov) |
| Voloridge Investment Management LLC | 1,652,577 | $78m | 0.26% | Added | n.a. | 14 Nov 2025 (the filing on sec.gov) |
| Two Sigma Advisers LP | 1,074,200 | $50m | 0.10% | New | new | 14 Nov 2025 (the filing on sec.gov) |
| Arrowstreet Capital LP | 1,037,884 | $49m | under 0.1% | New | new | 13 Nov 2025 (the filing on sec.gov) |
| Man Group PLC | 602,881 | $28m | under 0.1% | New | new | 14 Nov 2025 (the filing on sec.gov) |
| Baillie Gifford & Co | 562,993 | $26m | under 0.1% | New | new | 31 Oct 2025 (the filing on sec.gov) |
| Schonfeld Strategic Advisors LLC | 183,116 | $8.6m | under 0.1% | Trimmed | n.a. | 14 Nov 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- D. E. Shaw & Co.new position · 10,717,054 shares now+10,717,054
- Jane Street Group LLCexisting position · 11,710,138 shares now+3,358,815
- Two Sigma Advisers LPnew position · 1,074,200 shares now+1,074,200
- Arrowstreet Capital LPnew position · 1,037,884 shares now+1,037,884
- Man Group PLCnew position · 602,881 shares now+602,881
Reductions
- Discovery Capital Management LLCexisting position · 3,365,700 shares now-784,600
New positions and exits
New (5)
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2021 | 3 | $5.5m | n.a. | n.a. |
| Q1 2024 | 1 | $580k | 1 | 0 |
| Q2 2024 | 7 | $200m | 7 | 0 |
| Q3 2024 | 5 | $69m | 3 | 2 |
| Q4 2024 | 8 | $121m | 5 | 4 |
| Q1 2025 | 2 | $19m | 1 | 5 |
| Q2 2025 | 4 | $206m | 4 | 1 |
| Q3 2025 | 11 | $1.8bn | 9 | 2 |
| Q4 2025 | 10 | $1.0bn | 13 | 15 |
| Q1 2026 | 11 | $576m | 20 | 12 |
| Q2 2026 | 8 | $339m | 13 | 21 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
IREN and V →IREN and AXP →IREN and BAC →Choose a stock to compare with IREN →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own IREN, latest filings →Back to the 13F Explorer →