L3VLUP
ProSign in

IREN in the 13F filings

Iris Energy LTD · CUSIP Q4982L109

Sector · Other financial servicesTheme · Financial services· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2021
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 23 Jan 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 9 listed it in both
Shares listed
34,087,442
combined, among listed positions
Reported value
$1.3bn
combined, at the quarter end

Among the 92 comparable managers: 13 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -16,097,914.

Managers listing IREN in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
D. E. Shaw & Co.11,684,671$441m0.24%Added+967,61717 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC5,593,971$211munder 0.1%Trimmed-6,116,16712 Feb 2026 (the filing on sec.gov)
Discovery Capital Management LLC2,583,458$98m5.28%Trimmed-782,24217 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC2,283,757$86m0.30%Added+631,18017 Feb 2026 (the filing on sec.gov)
Invesco Ltd2,049,095$77munder 0.1%Trimmed-640,82619 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC1,964,922$74m0.06%Added+1,873,56327 Oct 2026 (the filing on sec.gov)
Marshall Wace LLP1,308,065$49munder 0.1%Trimmed-724,33213 Feb 2026 (the filing on sec.gov)
Capital Research Global Investors1,025,430$39munder 0.1%Newnew11 Feb 2026 (the filing on sec.gov)
Millennium Management LLC1,021,721$39munder 0.1%Added+165,50217 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC840,032$32munder 0.1%Trimmed-2,625,84417 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP825,420$31munder 0.1%Trimmed-1,032,29117 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC571,284$22munder 0.1%Trimmed-63,26513 Feb 2026 (the filing on sec.gov)
Baillie Gifford & Co527,686$20munder 0.1%Trimmed-35,30723 Jan 2026 (the filing on sec.gov)
Balyasny Asset Management LLC492,644$19munder 0.1%Added+485,39017 Feb 2026 (the filing on sec.gov)
Man Group PLC370,278$14munder 0.1%Trimmed-232,60317 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP276,688$10munder 0.1%Added+198,70613 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP262,556$9.9munder 0.1%Trimmed-4,880,72017 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC205,099$7.7munder 0.1%Added+21,98317 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC151,892$5.7munder 0.1%Added+34,54913 Feb 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP31,500$1.2munder 0.1%Added+8,30013 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC8,079$305kunder 0.1%Added+3,07913 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd6,395$242kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC2,743$103kunder 0.1%Newnew10 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)56$2kunder 0.1%Trimmed-2,123,76617 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
5 in Q3 2024 to 8 in Q2 2026

Tracked managers listing it, at least.

051015Q4 2021Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
IREN by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20213$5.5mn.a.n.a.
Q1 20241$580k10
Q2 20247$200m70
Q3 20245$69m32
Q4 20248$121m54
Q1 20252$19m15
Q2 20254$206m41
Q3 202511$1.8bn92
Q4 202510$1.0bn1315
Q1 202611$576m2012
Q2 20268$339m1321

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 →