CIK: 0001607512
Total reported value
$248.0M
Reporting period: 2026-03-31 · Number of holdings: 12
SEGRA CAPITAL MANAGEMENT, LLC disclosed 12 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $248.0M and a quarterly turnover rate of 158.8%.
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Segra Capital Management, LLC's disclosed holdings carry a Herfindahl concentration index of 0.198 — mathematically equivalent to about 5 equally-sized positions, well below its 12 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.81), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward initiating meaningfully larger new positions than it adds to existing ones (a 10.0 percentage-point tilt) — a pattern consistent with a more contrarian, new-idea-driven approach.
Add VST
-81.3% $45.8M
Trim N85083108
-80.9% -$6.7M
Add NXE
+1042.9% $21.6M
Add AMTM
+199.7% $29.7M
Add URG
+159828.6% $2.2M
Sold out 37954Y951
Showing top 8 holdings (of 12 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | CEG | Constellation Energy | Stock-Utilities | 28.49% | +28.49% | NEW | |
| 2 | VST | Vistra CORP | Stock-Utilities | 22.13% | +15.72% | -81.34% | |
| 3 | AMTM | Amentum Holdings INC | Stock-Industrials | 19.06% | +6.63% | +199.72% | |
| 4 | GEV | GE Vernova INC | Stock-Industrials | 14.08% | +14.08% | NEW | |
| 5 | NXE | Nexgen Energy LTD | Stock-Other | 9.36% | +8.22% | +1042.86% | |
| 6 | ✓ | Stock-Other | 4.74% | -8.32% | -80.88% | ||
| 7 | FRMI | Fermi INC | Stock-Other | 1.18% | +1.18% | NEW | |
| 8 | URG | Ur-energy INC | Stock-Other | 0.96% | +0.85% | +159828.60% |
Performance for Q3 2026
-7.4%
Performance Last 4 Quarters
+10%
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 12 | $248.0M | 100 | |
| 2025-12-31 | 6 | $141.1M | 91 | |
| 2025-09-30 | 6 | $247.4M | 100 | |
| 2025-06-30 | 9 | $362.0M | 0 | |
| 2025-03-31 | 14 | $313.1M | 0 | |
| 2024-12-31 | 10 | $263.7M | 0 | |
| 2024-09-30 | 8 | $256.4M | 0 | |
| 2024-06-30 | 6 | $126.0M | 0 | |
| 2024-03-31 | 4 | $130.8M | 0 | |
| 2023-12-31 | 4 | $124.7M | 0 | |
| 2023-09-30 | 6 | $139.5M | 0 | |
| 2023-06-30 | 6 | $171.6M | 0 | |
| 2023-03-31 | 8 | $14.1B | 0 | |
| 2022-12-31 | 6 | $136.3M | 0 | |
| 2022-09-30 | 5 | $119.7M | 0 | |
| 2022-06-30 | 7 | $89.8M | 0 | |
| 2022-03-31 | 7 | $109.9M | 0 | |
| 2021-12-31 | 9 | $66.2M | 0 |
Segra Capital Management, LLC's most significant position changes for 2026-03-31: Sold out: Global X Fds; New buy: Constellation Energy (CEG); New buy: GE Vernova INC (GEV); New buy: Fermi INC (FRMI); Trim: Vistra CORP (VST) — shares -81.34%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VST | Vistra CORP | +15.7% | -81.34% | Trim |
| 2 | NXE | Nexgen Energy LTD | +8.2% | +1042.86% | Add |
| 3 | AMTM | Amentum Holdings INC | +6.6% | +199.72% | Add |
| 4 | URG | Ur-energy INC | +0.9% | +159828.60% | Add |
| 5 | ✓ | -8.3% | -80.88% | Trim | |
| 6 | ✓ | Global X Fds | — | EXIT | Sold out |
| 7 | CEG | Constellation Energy | — | NEW | New buy |
| 8 | GEV | GE Vernova INC | — | NEW | New buy |
| 9 | FRMI | Fermi INC | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-07 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-15 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-15 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-14 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-15 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | Amendment | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-11 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-11-14 | Amendment | View on EDGAR |
| 2022-03-31 | 2022-05-13 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-11 | 13F-HR | View on EDGAR |
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