Lloyd Harbor Capital Management, LLC In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 14, 2025), Lloyd Harbor Capital Management, LLC reported 14 stock positions worth $208.4 million . Its top holding was Nexgen Energy (NXE) at 15.0% of the portfolio, followed by Sprott Uranium Miners ETF (URNM, 14.2% ) and Ur-Energy (URG, 11.2% ). Compared with Q2 2025, it opened 4 new positions, sold out of 5, added to 8 and reduced 2. The biggest buy was Ur-Energy (URG, shares +1528% ) and the biggest sale Cameco (CCJ, shares −53% ).
Location COLD SPRING HARBOR, NY
CIK 0001847935
Portfolio Value $208.4M (Q3 2025) Holdings 14 stocks · $208.4M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q2 2025 NXE Nexgen Energy Ltd. 3,487,817 $31.2M Add +38.8% URNM Sprott Uranium Miners ETF 490,000 $29.6M Add +237.9% URG Ur-Energy Inc. 13,050,000 $23.4M Add +1528.4% CCJ Cameco Corp. 217,461 $18.2M Reduce -53.0% JKS Jinkosolar Holding Co.-ADR 676,877 $16.3M Add +18.4% VAL Valaris Ltd. 280,000 $13.7M New DQ Daqo New Energy Corp.-ADR 467,603 $13.2M Add +14.6% DNN Denison Mines Corp. 4,300,662 $11.8M Reduce -35.9% TDW Tidewater Inc. 193,589 $10.3M Add +13.9% RIG Transocean Ltd. 2,895,000 $9.0M Add +43.0% LYB Lyondellbasell Indu Class A 180,000 $8.8M New WLK Westlake Corp. 110,000 $8.5M New SDRL Seadrill Limited 275,000 $8.3M Add +66.7% EU Encore Energy Corp. 1,900,000 $6.1M New
Options reported separately and not counted above: URA puts ($40.5M), NXE calls ($6.3M), RIG calls ($1.2M), DNN calls ($275K).
Portfolio Sells Q2 2025 → Q3 2025 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q2 2025 % Of Portfolio Change To Portfolio ▲ CCJ Cameco Corp. Reduce -53.0% 8.75% −15.32 UEC Uranium Energy Corp. Sold out 0.00% −9.06 KMI Kinder Morgan Inc. Sold out 0.00% −6.08 CNR Core Natural Resources Inc. Sold out 0.00% −4.89 DNN Denison Mines Corp. Reduce -35.9% 5.68% −2.89 EQT Eqt Corp. Sold out 0.00% −2.45 EXE Expand Energy Corp. Sold out 0.00% −2.13
Portfolio Buys Q2 2025 → Q3 2025 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q2 2025 % Of Portfolio Change To Portfolio ▼ URG Ur-Energy Inc. Add +1528.4% 11.21% +10.62 URNM Sprott Uranium Miners ETF Add +237.9% 14.21% +9.34 VAL Valaris Ltd. New 6.55% +6.55 LYB Lyondellbasell Indu Class A New 4.24% +4.24 WLK Westlake Corp. New 4.07% +4.07 EU Encore Energy Corp. New 2.93% +2.93 NXE Nexgen Energy Ltd. Add +38.8% 14.98% +2.75 DQ Daqo New Energy Corp.-ADR Add +14.6% 6.31% +1.97 SDRL Seadrill Limited Add +66.7% 3.99% +0.95 RIG Transocean Ltd. Add +43.0% 4.33% +0.66 TDW Tidewater Inc. Add +13.9% 4.95% −0.54 JKS Jinkosolar Holding Co.-ADR Add +18.4% 7.81% −0.70
Options Activity Q2 2025 → Q3 2025 Security Type Change vs Q2 2025 Underlying Shares Value ▼ URA Global X Uranium ETF put New 850,000 $40.5M CCJ Cameco Corp. put Sold out 100,000 $7.4Mbefore exit NXE Nexgen Energy Ltd. call New 700,000 $6.3M SOC Sable Offshore Corp. call Sold out 110,000 $2.4Mbefore exit RIG Transocean Ltd. call New 400,000 $1.2M DNN Denison Mines Corp. call New 100,000 $275K
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 16 $85.7M URNM, URA, XOM, WY, URG Q1 2026 20 $193.2M XOM, NLR, PBR, NXE, URG Q4 2025 16 $185.4M NXE, CCJ, SOLS, URNM, DNN Q3 2025 14 $208.4M NXE, URNM, URG, CCJ, JKS Q2 2025 15 $142.6M CCJ, NXE, UEC, DNN, JKS Q1 2025 18 $132.0M NXE, CCJ, UEC, SU, DNN Q4 2024 17 $152.8M CCJ, SHEL, URG, NXE, CVE Q3 2024 20 $199.6M CCJ, URG, URNM, NXE, SLB Q2 2024 17 $163.3M CCJ, NXE, VAL, URA, AEM Q1 2024 12 $141.1M TDW, NXE, SBSW, VAL, AEM