Lloyd Harbor Capital Management, LLC In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), Lloyd Harbor Capital Management, LLC reported 16 stock positions worth $185.4 million . Its top holding was Nexgen Energy (NXE) at 15.1% of the portfolio, followed by Cameco (CCJ, 13.2% ) and Solstice Adv Materials (SOLS, 9.0% ). Compared with Q3 2025, it opened 5 new positions, sold out of 3, added to 2 and reduced 8. The biggest buy was a new position in Solstice Adv Materials (SOLS) and the biggest sale Sprott Uranium Miners ETF (URNM, shares −38% ).
Location COLD SPRING HARBOR, NY
CIK 0001847935
Portfolio Value $185.4M (Q4 2025) Holdings 16 stocks · $185.4M 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 Q3 2025 NXE Nexgen Energy Ltd. 3,037,817 $27.9M Reduce -12.9% CCJ Cameco Corp. 267,461 $24.5M Add +23.0% SOLS Solstice Adv Materials Inc. 345,000 $16.8M New URNM Sprott Uranium Miners ETF 303,171 $16.6M Reduce -38.1% DNN Denison Mines Corp. 6,100,000 $16.2M Add +41.8% URG Ur-Energy Inc. 9,900,000 $13.8M Reduce -24.1% TDW Tidewater Inc. 193,589 $9.8M No change RIG Transocean Ltd. 2,250,000 $9.3M Reduce -22.3% VAL Valaris Ltd. 180,000 $9.1M Reduce -35.7% JKS Jinkosolar Holding Co.-ADR 336,877 $8.7M Reduce -50.2% CE Celanese Corp. 190,000 $8.0M New SDRL Seadrill Limited 220,000 $7.6M Reduce -20.0% HON Honeywell International Inc. 39,000 $7.6M New DQ Daqo New Energy Corp.-ADR 182,603 $5.4M Reduce -61.0% TROX Tronox Holdings PLC 675,000 $2.8M New ASIX Advansix Inc. 75,000 $1.3M New
Options reported separately and not counted above: RIG puts ($8.3M), VAL puts ($7.6M), NXE calls ($6.4M).
Portfolio Sells Q3 2025 → Q4 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 Q3 2025 % Of Portfolio Change To Portfolio ▲ URNM Sprott Uranium Miners ETF Reduce -38.1% 8.98% −5.23 LYB Lyondellbasell Indu Class A Sold out 0.00% −4.24 WLK Westlake Corp. Sold out 0.00% −4.07 URG Ur-Energy Inc. Reduce -24.1% 7.42% −3.79 DQ Daqo New Energy Corp.-ADR Reduce -61.0% 2.91% −3.41 JKS Jinkosolar Holding Co.-ADR Reduce -50.2% 4.69% −3.12 EU Encore Energy Corp. Sold out 0.00% −2.93 VAL Valaris Ltd. Reduce -35.7% 4.89% −1.66 NXE Nexgen Energy Ltd. Reduce -12.9% 15.07% +0.09 SDRL Seadrill Limited Reduce -20.0% 4.11% +0.12 RIG Transocean Ltd. Reduce -22.3% 5.01% +0.68
Portfolio Buys Q3 2025 → Q4 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 Q3 2025 % Of Portfolio Change To Portfolio ▼ SOLS Solstice Adv Materials Inc. New 9.04% +9.04 CCJ Cameco Corp. Add +23.0% 13.20% +4.45 CE Celanese Corp. New 4.33% +4.33 HON Honeywell International Inc. New 4.10% +4.10 DNN Denison Mines Corp. Add +41.8% 8.75% +3.08 TROX Tronox Holdings PLC New 1.52% +1.52 ASIX Advansix Inc. New 0.70% +0.70
Options Activity Q3 2025 → Q4 2025 Security Type Change vs Q3 2025 Underlying Shares Value ▼ URA Global X Uranium ETF put Sold out 850,000 $40.5Mbefore exit RIG Transocean Ltd. put New 2,000,000 $8.3M VAL Valaris Ltd. put New 150,000 $7.6M RIG Transocean Ltd. call Sold out 400,000 $1.2Mbefore exit DNN Denison Mines Corp. call Sold out 100,000 $275Kbefore exit
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