CastleKnight Management LP IREN — IRIS ENERGY LTD

Ownership history in CastleKnight Management LP  ·  14 quarters on record

AI Ownership Summary

CastleKnight Management LP reported IRIS ENERGY LTD (IREN) in 14 quarterly 13F filings from 2024 Q3 through 2026 Q2. Peak portfolio weight reached 0.73% in 2026 Q2. The latest visible filing shows IREN at 0.73% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this IREN ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CastleKnight Management LP's position in IRIS ENERGY LTD, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q2

IREN was reported at 0.73% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.73% in 2026 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q3 to 2026 Q2

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

IREN stock page CastleKnight Management LP fund profile CastleKnight Management LP full holdings
How CastleKnight Management LP held IREN — position size vs. price
% of Fund (quarterly)    IREN price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 13 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 ADDED — — — 1,181,175 +871,175 +281.0% 0.73% $54.0M 2026-08-14 $44.06
2026 Q2 REDUCED — — — 310,000 -496,175 -61.5% 0.19% $14.2M 2026-08-14 $44.06
2026 Q1 ADDED — — — 806,175 +676,175 +520.1% 0.46% $27.6M 2026-05-15 $52.94
2026 Q1 REDUCED 78.2% +33.9% ❌ 130,000 -465,875 -78.2% 0.07% $4.5M 2026-05-15 $52.94
2025 Q4 ADDED — — — 595,875 +126,500 +27.0% 0.50% $22.5M 2026-02-17 $40.97
2025 Q3 ADDED — — — 469,375 +159,375 +51.4% 0.43% $22.0M 2025-11-14 $46.37
2025 Q3 REDUCED 82.2% -16.0% ✅ 310,000 -1,433,800 -82.2% 0.29% $14.5M 2025-11-14 $46.37
2025 Q2 ADDED — — — 1,743,800 +1,293,800 +287.5% 0.72% $25.4M 2025-08-14 $19.08
2025 Q2 REDUCED 76.6% +215.2% ❌ 450,000 -1,471,500 -76.6% 0.19% $6.6M 2025-08-14 $19.08
2025 Q1 ADDED — — — 1,921,500 +1,721,500 +860.8% 0.46% $11.7M 2025-05-15 $7.75
2025 Q1 REDUCED 70.6% +139.2% ❌ 200,000 -479,800 -70.6% 0.05% $1.2M 2025-05-15 $7.75
2024 Q4 ADDED — — — 679,800 +162,000 +31.3% 0.20% $6.7M 2025-02-14 $13.01
2024 Q3 ADDED — — — 517,800 +253,700 +96.1% 0.18% $4.4M 2024-11-14 $10.33
1 older quarter hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding IREN

As of 2026 Q2 — sorted by position size

Crystal Cove Asset Management, LLC 22.18% Alpine Fox Capital LLC 16.25% BIT Capital GmbH 9.53% Portman Square Capital LLP 3Y 8.88% AGAVE CAPITAL MANAGEMENT Ltd 8.72% Bitwise Funds Trust 7.93% Arosa Capital Management LP 3Y 7Y 5.79% VIMA LLC 5.18% JAT Capital Mgmt LP 3Y 5.16% Vennlight Capital Management, LP 4.39%

FAQ About CastleKnight Management LP and IREN

These are the practical questions this page is built to answer before you even open the full history table.

How long has CastleKnight Management LP reported owning IREN?

CastleKnight Management LP reported IREN across 13 quarterly 13F filings, from 2024 Q3 through 2026 Q2.

What was the largest reported IREN position in CastleKnight Management LP's portfolio?

The largest reported portfolio weight for IREN was 0.73% in 2026 Q2.

What is the latest reported IREN position on this page?

The most recent filing on this page is 2026 Q2, when CastleKnight Management LP reported 1,181,175 shares, equal to 0.73% of portfolio, with an estimated market value of $54.0M.

What does the chart on this IREN ownership page compare?

The chart compares CastleKnight Management LP's quarterly IREN portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did CastleKnight Management LP time their IREN position?

Based on 13F filing dates vs. subsequent IREN price moves, CastleKnight Management LP correctly timed 10 out of 13 reported position changes (77%). The annualised alpha on IREN relative to SPY over the holding period was +261.6%.

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