ISOU · Insider trading · 13F holders · Congress trades
IsoEnergy Ltd (Pre-Reincorporation) (ISOU)
Who is buying and selling ISOU: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 6
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ISOU at a glance
- No open-market insider purchases or sales of ISOU were filed in the last 90 days.
- 6 13F filers hold ISOU among their 50 largest positions, worth $39.4M combined. The biggest bets by portfolio weight are Acasta Partners UK LLP (3.9%), L1 Capital Pty Ltd (0.9%) and Masters Capital Management LLC (0.8%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in ISOU.
ISOU insider trading
No open-market insider purchases or sales of ISOU were filed in the last 90 days.
Who owns ISOU? Hedge funds and superinvestors
6 13F filers hold ISOU among their 50 largest positions, worth $39.4M combined. The biggest bets by portfolio weight are Acasta Partners UK LLP (3.9%), L1 Capital Pty Ltd (0.9%) and Masters Capital Management LLC (0.8%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| L1 Capital Pty LtdHedge fund | 0.9% | $27.7M | 2,778,857 | +11.8% shares | Q2 2026 |
| Masters Capital Management LLCHedge fund | 0.8% | $6.0M | 600,000 | -14.3% shares | Q2 2026 |
| Firetrail Investments Pty LtdAsset manager | 0.8% | $2.9M | 293,110 | New | Q2 2026 |
| PenderFund Capital Management Ltd.Asset manager | 0.6% | $1.4M | 139,300 | -4.1% shares | Q2 2026 |
| Acasta Partners UK LLPHedge fund | 3.9% | $1.3M | 150,700 | +0.0% shares | Q3 2026 |
| Rockbridge Asset Management LLCWealth manager | 0.1% | $100K | 10,000 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 5). Screen ISOU in the grand portfolio →
ISOU stock trades by members of Congress
No member of Congress has disclosed a trade in ISOU.
ISOU questions and answers
Are insiders buying ISOU stock?
No open-market insider purchases or sales of ISOU were filed in the last 90 days.
Which hedge funds own ISOU?
6 13F filers hold ISOU among their 50 largest positions, worth $39.4M combined. The biggest bets by portfolio weight are Acasta Partners UK LLP (3.9%), L1 Capital Pty Ltd (0.9%) and Masters Capital Management LLC (0.8%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded ISOU?
No member of Congress has disclosed a trade in ISOU.
Who is the largest holder of ISOU?
Among 13F filers, L1 Capital Pty Ltd reports the largest ISOU position, $27.7M (2,778,857 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Acasta Partners UK LLP's: 3.9% of its portfolio.
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