Segra Capital Management, LLC
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 7, 2026), Segra Capital Management, LLC reported 6 stock positions worth $128.4 million. Its top holding was Amentum (AMTM) at 32.7% of the portfolio, followed by Constellation Energy (CEG, 26.7%) and Vistra (VST, 19.3%). Compared with Q4 2025, it opened 2 new positions, sold out of 1, added to 2 and reduced 2. The biggest buy was a new position in Constellation Energy (CEG) and the biggest sale Terra Innovatum Global (NKLR, shares −81%).
- Most Recent 13F
- Q2 2026
- Location
- PALM BEACH, FL
- CIK
- 0001607512
- Portfolio Value
- $128.4M (Q1 2026)
- SEC Filing
- 0001607512-26-000004 ↗ filed May 7, 2026
Holdings Value
Holdings 6 stocks · $128.4M
| AMTM Amentum Holdings Inc. | 32.74% | 1,612,726 | $42.1M | Add +166.7% |
| CEG Constellation Energy | 26.74% | 123,000 | $34.3M | New |
| VST Vistra Corp. | 19.31% | 165,000 | $24.8M | Reduce -91.6% |
| GEV GE Vernova Inc. | 10.19% | 15,000 | $13.1M | New |
| NKLR Terra Innovatum Global NV | 9.15% | 2,534,340 | $11.8M | Reduce -80.9% |
| URG Ur-Energy Inc. | 1.86% | 1,599,286 | $2.4M | Add +159828.6% |
Options reported separately and not counted above: CEG calls ($36.3M), VST calls ($30.1M), NXE puts ($23.2M), GEV puts ($21.8M), AMTM calls ($5.2M), FRMI calls ($2.9M).
Portfolio Sells Q4 2025 → Q1 2026
Portfolio Buys Q4 2025 → Q1 2026
Options Activity Q4 2025 → Q1 2026
| GLOBAL X FDS | put | Sold out | 2,207,100 | $94.3Mbefore exit |
| CEG Constellation Energy | call | New | 130,000 | $36.3M |
| VST Vistra Corp. | call | New | 200,000 | $30.1M |
| NXE Nexgen Energy Ltd. | put | New | 2,000,000 | $23.2M |
| GEV GE Vernova Inc. | put | New | 25,000 | $21.8M |
| AMTM Amentum Holdings Inc. | call | New | 200,000 | $5.2M |
| FRMI Fermi Inc. | call | New | 500,000 | $2.9M |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 7 | $435.0M | XE, VST, AMTM, CEG, NRG |
| Q1 2026 | 6 | $128.4M | AMTM, CEG, VST, GEV, NKLR |
| Q4 2025 | 5 | $46.8M | NKLR, AMTM, VST, NXE, URG |
| Q3 2025 | 4 | $86.5M | URG, NXE, AMTM, VST |
| Q2 2025 | 8 | $310.0M | NXE, DNN, CCJ, BWXT, URG |
| Q1 2025 | 9 | $204.1M | NXE, DNN, BWXT, URG, UEC |
| Q4 2024 | 7 | $194.5M | NXE, DNN, URG, CCJ, BWXT |
| Q3 2024 | 8 | $256.4M | NXE, CCJ, DNN, URG, UEC |
| Q2 2024 | 4 | $109.1M | NXE, URG, DNN, BWXT |
| Q1 2024 | 4 | $130.8M | NXE, DNN, URG, CCJ |