CastleKnight Management LP: IREN LIMITED (IREN): Quarterly 13F Position History
As of Q2 2026, CastleKnight Management LP reported 1,181,175 shares of IREN LIMITED (IREN), worth $54.0M and representing 2.0% of its 13F equity book. Quarter-over-quarter share count change: + 375,000 (+46.5%) . The position first appeared in Q3 2023 and has been disclosed across 12 13F-HR filings in Pactolio's tracked window.
- 1,181,175Shares Held (Latest Filing)
- $54.0MReported Market Value (Latest Filing)
- 2.0%Portfolio Weight (% of 13F Equity Book)
- +375,000Quarter-over-Quarter Share Change
- +$26.4MQuarter-over-Quarter Value Change
- 1,921,500Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 12 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,181,175 | +375,000 | +46.5% | $54.0M | 2.0% | $45.7 |
| Q1 2026 | 806,175 | +210,300 | +35.3% | $27.6M | 1.3% | $34.3 |
| Q4 2025 | 595,875 | +126,500 | +27.0% | $22.5M | 1.3% | $37.8 |
| Q3 2025 | 469,375 | 1,274,425 | -73.1% | $22.0M | 1.2% | $46.9 |
| Q2 2025 | 1,743,800 | 177,700 | -9.2% | $25.4M | 1.7% | $14.6 |
| Q1 2025 | 1,921,500 | +1,241,700 | +182.7% | $11.7M | 1.3% | $6.1 |
| Q4 2024 | 679,800 | +162,000 | +31.3% | $6.7M | 0.7% | $9.8 |
| Q3 2024 | 517,800 | +517,800 | – | $4.4M | 0.5% | $8.4 |
| Q2 2024 | 0 | 0 | – | $0 | 0.0% | – |
| Q1 2024 | 0 | 0 | – | $0 | 0.0% | – |
| Q4 2023 | 0 | 264,100 | -100.0% | $0 | 0.0% | – |
| Q3 2023 | 264,100 | – | – | $979.8K | 0.2% | $3.7 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares, a quarter-end mark rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did CastleKnight Management LP first disclose a IREN position in 13F-HR filings?
CastleKnight Management LP first reported IREN LIMITED (IREN) on its 13F-HR filing for the period ending 2023-09-30 (Q3 2023). The position has appeared on 12 reported quarters within Pactolio's tracked window.
What was CastleKnight Management LP's most recent quarter-over-quarter share-count change in IREN?
Between Q1 2026 and Q2 2026, CastleKnight Management LP added 375,000 shares of IREN (+46.5%), bringing the total reported position to 1,181,175 shares at a market value of $54.0M.
Does the implied price-per-share represent CastleKnight Management LP's cost basis in IREN?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.