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Lloyd Harbor Capital Management, LLC

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13F filer, CIK 1847935, COLD SPRING HARBOR, NY

Lloyd Harbor Capital Management, LLC reported $207,653,215 across 19 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-17. Its ten largest share positions make up 82.33% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001214659-26-001971

Period
2025-12-31
Reported value
$208M
Holdings
19
Top 10 weight
82.33%
New
7
Sold out
6

Largest buys vs the previous quarter

SecurityShares changeApprox. value
SOLSnew+345,000$16.8M
CEnew+190,000$8.03M
HONnew+39,000$7.61M
DNNadded+1,799,338$4.79M
CCJadded+50,000$4.57M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
URNMreduced-186,829-$10.3M
LYBexited-180,000-$8.83M
JKSreduced-340,000-$8.78M
WLKexited-110,000-$8.48M
DQreduced-285,000-$8.41M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q4 2025

Share positions as resolved from 13F-HR 0001214659-26-001971, largest first. % of portfolio is the value over $185,393,215, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
NXENEXGEN ENERGY LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,992,087 shares; 2024Q4: 1,912,817 shares; 2025Q1: 4,212,817 shares; 2025Q2: 2,512,817 shares; 2025Q3: 3,487,817 shares; 2025Q4: 3,037,817 shares 3,037,817$27.9M15.07%-450,000Timeline
CCJCAMECO CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 658,923 shares; 2024Q4: 418,461 shares; 2025Q1: 442,461 shares; 2025Q2: 462,461 shares; 2025Q3: 217,461 shares; 2025Q4: 267,461 shares 267,461$24.5M13.2%+50,000Timeline
SOLSSOLSTICE ADVANCED MATLS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 345,000 shares 345,000$16.8M9.04%newTimeline
URNMSPROTT FDS TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 495,000 shares; 2024Q4: 174,750 shares; 2025Q1: not reported; 2025Q2: 145,000 shares; 2025Q3: 490,000 shares; 2025Q4: 303,171 shares 303,171$16.6M8.98%-186,829Timeline
DNNDENISON MINES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,660,162 shares; 2024Q4: 2,060,162 shares; 2025Q1: 6,410,162 shares; 2025Q2: 6,710,162 shares; 2025Q3: 4,300,662 shares; 2025Q4: 6,100,000 shares 6,100,000$16.2M8.75%+1,799,338Timeline
URGUR-ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 20,809,358 shares; 2024Q4: 14,480,558 shares; 2025Q1: 5,686,028 shares; 2025Q2: 801,384 shares; 2025Q3: 13,050,000 shares; 2025Q4: 9,900,000 shares 9,900,000$13.8M7.42%-3,150,000Timeline
TDWTIDEWATER INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 120,414 shares; 2025Q1: 100,000 shares; 2025Q2: 170,000 shares; 2025Q3: 193,589 shares; 2025Q4: 193,589 shares 193,589$9.78M5.27%0Timeline
RIGTRANSOCEAN LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 2,025,000 shares; 2025Q3: 2,895,000 shares; 2025Q4: 2,250,000 shares 2,250,000$9.29M5.01%-645,000Timeline
VALVALARIS LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 75,000 shares; 2025Q2: not reported; 2025Q3: 280,000 shares; 2025Q4: 180,000 shares 180,000$9.07M4.89%-100,000Timeline
JKSJINKOSOLAR HLDG CO LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 571,877 shares; 2025Q3: 676,877 shares; 2025Q4: 336,877 shares 336,877$8.69M4.69%-340,000Timeline
CECELANESE CORP DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 190,000 shares 190,000$8.03M4.33%newTimeline
SDRLSEADRILL LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 200,000 shares; 2025Q1: 150,000 shares; 2025Q2: 165,000 shares; 2025Q3: 275,000 shares; 2025Q4: 220,000 shares 220,000$7.61M4.11%-55,000Timeline
HONHONEYWELL INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 39,000 shares 39,000$7.61M4.1%newTimeline
DQDAQO NEW ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 320,000 shares; 2025Q2: 407,922 shares; 2025Q3: 467,603 shares; 2025Q4: 182,603 shares 182,603$5.39M2.91%-285,000Timeline
TROXTRONOX HOLDINGS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 675,000 shares 675,000$2.81M1.52%newTimeline
ASIXADVANSIX INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 75,000 shares 75,000$1.3M0.7%newTimeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
RIGTRANSOCEAN LTD Stockput2,000,000$8.26Mnew
VALVALARIS LTD CL Aput150,000$7.56Mnew
NXENEXGEN ENERGY LTD Stockcall700,000$6.44M0

Sold out in Q4 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
URAGLOBAL X FDS850,000$40.5Mput
LYBLYONDELLBASELL INDUSTRIES NV180,000$8.83Mshares
WLKWESTLAKE CORPORATION110,000$8.48Mshares
EUENCORE ENERGY CORP1,900,000$6.1Mshares
RIGTRANSOCEAN LTD400,000$1.25Mcall
DNNDENISON MINES CORP100,000$275Kcall

How Q4 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001214659-26-001971 base2026-02-17acceptance time not in the bulk data set