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Corundum Trust Company, INC

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13F filer, CIK 1987720, SIOUX FALLS, SD

Corundum Trust Company, INC reported $37,873,529 across 50 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-07-28. Its ten largest share positions make up 62.48% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001987720-25-000006

Period
2025-06-30
Reported value
$37.9M
Holdings
50
Top 10 weight
62.48%
New
5
Sold out
5

Largest buys vs the previous quarter

SecurityShares changeApprox. value
GREATLAND RESOURCESnew+151,250$708K
LUGDFnew+11,000$580K
DSVSFadded+202,500$439K
NEMnew+4,000$233K
AYAadded+25,000$225K

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
GREATLAND GOLDexited-3,000,000-$464K
OROGEN ROYALTIES INC COMreduced-323,500-$453K
MAG SILVER CORPexited-28,150-$430K
MSFTreduced-284-$141K
IJRreduced-992-$108K

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, Q2 2025

Share positions as resolved from 13F-HR 0001987720-25-000006, largest first. % of portfolio is the value over $37,873,529, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
MMM3M COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 40,667 shares; 2024Q4: 40,503 shares; 2025Q1: 40,429 shares; 2025Q2: 40,427 shares 40,427$6.15M16.25%-2Timeline
IJRISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 33,290 shares; 2024Q4: 31,490 shares; 2025Q1: 33,290 shares; 2025Q2: 32,298 shares 32,298$3.53M9.32%-992Timeline
DVYISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 19,014 shares; 2024Q4: 19,014 shares; 2025Q1: 19,014 shares; 2025Q2: 19,014 shares 19,014$2.53M6.67%0Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,731 shares; 2024Q4: 5,692 shares; 2025Q1: 5,226 shares; 2025Q2: 4,942 shares 4,942$2.46M6.49%-284Timeline
IJKISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 22,184 shares; 2024Q4: 21,744 shares; 2025Q1: 21,744 shares; 2025Q2: 21,744 shares 21,744$1.98M5.22%0Timeline
IVVISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,957 shares; 2024Q4: 2,957 shares; 2025Q1: 2,957 shares; 2025Q2: 2,957 shares 2,957$1.84M4.85%0Timeline
IJJISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 13,584 shares; 2024Q4: 13,166 shares; 2025Q1: 13,166 shares; 2025Q2: 13,166 shares 13,166$1.63M4.3%0Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 8,349 shares; 2024Q4: 7,741 shares; 2025Q1: 6,546 shares; 2025Q2: 6,540 shares 6,540$1.34M3.54%-6Timeline
EFAISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 13,694 shares; 2024Q4: 12,618 shares; 2025Q1: 12,735 shares; 2025Q2: 12,732 shares 12,732$1.14M3.01%-3Timeline
GOOGALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,362 shares; 2024Q4: 6,314 shares; 2025Q1: 6,059 shares; 2025Q2: 6,058 shares 6,058$1.07M2.84%-1Timeline
SKESKEENA RES LTD NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 65,250 shares; 2024Q4: 65,250 shares; 2025Q1: 65,250 shares; 2025Q2: 65,250 shares 65,250$1.04M2.74%0Timeline
SPYSTATE STR SPDR S&P 500 ETF TQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,660 shares; 2024Q4: 662 shares; 2025Q1: 1,631 shares; 2025Q2: 1,629 shares 1,629$1.01M2.66%-2Timeline
LLYELI LILLY & COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,205 shares; 2024Q4: 1,178 shares; 2025Q1: 1,145 shares; 2025Q2: 1,102 shares 1,102$859K2.27%-43Timeline
SOLVSOLVENTUM CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 10,111 shares; 2024Q4: 10,111 shares; 2025Q1: 10,111 shares; 2025Q2: 10,111 shares 10,111$767K2.02%0Timeline
JPMJPMORGAN CHASE & COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,512 shares; 2024Q4: 2,457 shares; 2025Q1: 2,505 shares; 2025Q2: 2,504 shares 2,504$726K1.92%-1Timeline
GREATLAND RESOURCESGREATLAND RESOURCESQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 151,250 shares 151,250$708K1.87%new
WDOFFWESDOME GOLD MINES LTD (CANADAQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 48,000 shares; 2024Q4: 48,000 shares; 2025Q1: 48,000 shares; 2025Q2: 48,000 shares 48,000$669K1.77%0Timeline
LUGDFLUNDIN GOLD INC (CANADA)Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 11,000 shares 11,000$580K1.53%newTimeline
DSVSFDISCOVERY SILVER CORP COM (CANQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 55,000 shares; 2025Q2: 257,500 shares 257,500$559K1.48%+202,500Timeline
CSCOCISCO SYS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 7,827 shares; 2024Q4: 7,669 shares; 2025Q1: 7,808 shares; 2025Q2: 7,807 shares 7,807$542K1.43%-1Timeline
VTHRVANGUARD SCOTTSDALE FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,892 shares; 2024Q4: 1,892 shares; 2025Q1: 1,892 shares; 2025Q2: 1,892 shares 1,892$516K1.36%0Timeline
UNHUNITEDHEALTH GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,622 shares; 2024Q4: 1,604 shares; 2025Q1: 1,620 shares; 2025Q2: 1,508 shares 1,508$470K1.24%-112Timeline
NGEX MINERALS LTD COMNGEX MINERALS LTD COMQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 25,100 shares; 2024Q4: 30,000 shares; 2025Q1: 30,000 shares; 2025Q2: 35,000 shares 35,000$408K1.08%+5,000
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,727 shares; 2024Q4: 1,679 shares; 2025Q1: 1,722 shares; 2025Q2: 1,721 shares 1,721$378K1%-1Timeline
AYAAYA GOLD & SILVER INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 15,000 shares; 2025Q1: 15,000 shares; 2025Q2: 40,000 shares 40,000$360K0.95%+25,000Timeline
UGIUGI CORP NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 11,373 shares; 2024Q4: not reported; 2025Q1: 11,373 shares; 2025Q2: 9,773 shares 9,773$356K0.94%-1,600Timeline
FNVFRANCO NEV CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,000 shares; 2024Q4: 2,000 shares; 2025Q1: 2,000 shares; 2025Q2: 2,000 shares 2,000$328K0.87%0Timeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 671 shares; 2024Q4: 643 shares; 2025Q1: 667 shares; 2025Q2: 666 shares 666$324K0.85%-1Timeline
UNPUNION PAC CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,382 shares; 2024Q4: 1,382 shares; 2025Q1: 1,382 shares; 2025Q2: 1,382 shares 1,382$318K0.84%0Timeline
CCITIGROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,315 shares; 2024Q4: 3,315 shares; 2025Q1: 3,315 shares; 2025Q2: 3,315 shares 3,315$282K0.75%0Timeline
OROGEN ROYALTIES INC COMOROGEN ROYALTIES INC COMQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 523,500 shares; 2024Q4: 523,500 shares; 2025Q1: 523,500 shares; 2025Q2: 200,000 shares 200,000$280K0.74%-323,500
AEMAGNICO EAGLE MINES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 2,000 shares; 2025Q2: 2,000 shares 2,000$238K0.63%0Timeline
NEMNEWMONT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 4,000 shares 4,000$233K0.62%newTimeline
EEMISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 4,810 shares; 2024Q4: 4,810 shares; 2025Q1: 4,810 shares; 2025Q2: 4,810 shares 4,810$232K0.61%0Timeline
NORTHERN STAR RESOURCES LTD…NORTHERN STAR RESOURCES LTD SHSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 18,500 shares; 2024Q4: 18,500 shares; 2025Q1: 18,500 shares; 2025Q2: 18,500 shares 18,500$231K0.61%0
RUPRFRUPERT RES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 63,500 shares; 2024Q4: 63,500 shares; 2025Q1: 63,500 shares; 2025Q2: 63,500 shares 63,500$224K0.59%0Timeline
EVOLUTION MINING LTD US LIS…EVOLUTION MINING LTD US LISTEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 32,500 shares; 2024Q4: 40,000 shares; 2025Q1: 40,000 shares; 2025Q2: 40,000 shares 40,000$207K0.55%0
TMOTHERMO FISHER SCIENTIFIC INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 500 shares; 2024Q4: 500 shares; 2025Q1: 500 shares; 2025Q2: 500 shares 500$203K0.54%0Timeline
VZLAVIZSLA SILVER CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 60,250 shares; 2024Q4: 60,250 shares; 2025Q1: 60,250 shares; 2025Q2: 60,250 shares 60,250$177K0.47%0Timeline
SNWGFSNOWLINE GOLD CORP COM SHS (CAQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 20,000 shares; 2024Q4: 25,000 shares; 2025Q1: 25,000 shares; 2025Q2: 27,000 shares 27,000$167K0.44%+2,000Timeline
KGCKINROSS GOLD CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 10,000 shares; 2024Q4: 10,000 shares; 2025Q1: 10,000 shares; 2025Q2: 10,000 shares 10,000$156K0.41%0Timeline
SXGCFSOUTHERN CROSS GOLD CONS LTD CQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 20,000 shares; 2025Q2: 30,000 shares 30,000$142K0.37%+10,000Timeline
AGFIRST MAJESTIC SILVER CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,000 shares; 2024Q4: 12,000 shares; 2025Q1: 12,000 shares; 2025Q2: 12,000 shares 12,000$99.2K0.26%0Timeline
ONXGFONYX GOLD CORP COMQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 61,200 shares 61,200$90.3K0.24%newTimeline
AIRRFAURION RES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 156,125 shares; 2024Q4: 156,125 shares; 2025Q1: 156,125 shares; 2025Q2: 156,125 shares 156,125$83.2K0.22%0Timeline
DEEP YELLOW LIMITED ORDINAR…DEEP YELLOW LIMITED ORDINARY SQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 162,162 shares; 2024Q4: 162,162 shares; 2025Q1: 112,162 shares; 2025Q2: 62,162 shares 62,162$69.3K0.18%-50,000
PDIYFPREDICTIVE DISCOVERY LTD,Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 300,000 shares; 2025Q1: 300,000 shares; 2025Q2: 300,000 shares 300,000$66K0.17%0Timeline
SPARTAN RESOURCES LTD ORDIN…SPARTAN RESOURCES LTD ORDINARYQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 40,000 shares; 2025Q1: 40,000 shares; 2025Q2: 50,000 shares 50,000$54.5K0.14%+10,000
GLGDFGOGOLD RES INC ORD SHS (CDA)Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 22,500 shares; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 30,000 shares 30,000$43.9K0.12%newTimeline
WOLFDEN RES CORP COMWOLFDEN RES CORP COMQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 398,802 shares; 2024Q4: 398,802 shares; 2025Q1: 398,802 shares; 2025Q2: 398,802 shares 398,802$19.9K0.05%0

Sold out in Q2 2025

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

SecurityShares beforeValue beforeType
GREATLAND GOLDGREATLAND GOLD3,000,000$464Kshares
MAG SILVER CORPMAG SILVER CORP28,150$430Kshares
GUYGFG2 GOLDFIELDS INC COM (CANADA)25,000$56.1Kshares
BMTLFBEMETALS CORP (CANADA)132,567$4.48Kshares
BARKSDALE RESOURCES CORP COMBARKSDALE RESOURCES CORP COM50,000$3.56Kshares

How Q2 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 0001987720-25-000006 base2025-07-28acceptance time not in the bulk data set