SEC 13F Intelligence

Managers / Q2 2025 · view latest →

Corundum Trust Company, INC

CIK 0001987720 · 401 E. 8TH STREET, SUITE 303, SIOUX FALLS, SD, 57103 · 16058001992

Reported Value
$38M
Q2 2025
Positions
50
Filings on Record
10
2023–present window
Filed
Jul 28, 2025
original filing

Summary

Corundum Trust Company, Inc reported $38M in U.S.-listed holdings across 50 positions for Q2 2025.

Its largest position, 3m Company, represents 16.3% of the portfolio.

Compared with Q1 2025, the fund opened 5 new positions and exited 5.

Portfolio Metrics

Turnover
+5.4%
vs prior filed quarter
Top-10 Concentration
+62.5%
share of reported value
Largest Position
+16.3%
3m Company
New / Exited
5 / 5
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q2 ’23: $37MQ2 ’23Q3 ’23: $33MQ2 ’24: $34MQ2 ’24Q3 ’24: $36MQ4 ’24: $33MQ4 ’24Q1 ’25: $35MQ2 ’25: $38MQ2 ’25Q3 ’25: $46MQ4 ’25: $44MQ4 ’25Q1 ’26: $44Mfilingsflow.com

Portfolio Composition

By security type
Other: 44.3%ETP: 34.0%Common Stock: 21.7%
  • Other · 44.3% · $17M
  • ETP · 34.0% · $13M
  • Common Stock · 21.7% · $8M

Quarter-over-Quarter Changes full breakdown →

vs Q1 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
GREATLAND RESOURCESNEW+151.3K151.3K+$707,713$707,713
LUGDFLUNDIN GOLD INC COMNEW+11.0K11.0K+$579,892$579,892
NEMNEWMONT CORPORATION COMMON STONEW+4.0K4.0K+$233,040$233,040
ONYX GOLD CORP COMNEW+61.2K61.2K+$90,331$90,331
GOGOLD RESOURCES INCNEW+30.0K30.0K+$43,905$43,905
DISCOVERY SILVER CORP COMMONADDED+202.5K257.5K+$477,733$558,775
AYA GOLD & SILVER INC COMADDED+25.0K40.0K+$244,000$359,800
GREATLAND GOLDSOLD OUT−3.00M0−$463,534$0

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q2 2025

50 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
13M COMPANYCS16.25%$6M40.4K
2IJRISHARES CORE S&P SMALL CAP ETFhistory →CS9.32%$4M32.3K
3DVYISHARES SELECT DIVIDEND ETFhistory →CS6.67%$3M19.0K
4MSFTMICROSOFT CORPhistory →CS6.49%$2M4.9K
5IJKISHARES S&P MID CAP 400 GROWTHhistory →CS5.22%$2M21.7K
6IVVISHARES CORE S&P 500 ETFhistory →CS4.85%$2M3.0K
7IJJISHARES S&P MID CAP 400 VALUEhistory →CS4.30%$2M13.2K
8AAPLAPPLE INChistory →CS3.54%$1M6.5K
9EFAISHARES MSCI EAFE ETFhistory →CS3.01%$1M12.7K
10ALPHABET INC CLASS C CAPITAL SCS2.84%$1M6.1K
11SKEENA RESOURCES LIMITED NEW CCS2.74%$1M65.3K
12SPDR S&P 500 ETF TRUSTCS2.66%$1M1.6K
13LLYELI LILLY & COhistory →CS2.27%$859,0421.1K
14SOLVENTUM CORPORATION COMMON SCS2.02%$766,81810.1K
15JPMORGAN CHASE & COCS1.92%$725,9352.5K
16GREATLAND RESOURCESCS1.87%$707,713151.3K
17WESDOME GOLD MINES LTDCS1.77%$669,36048.0K
18LUGDFLUNDIN GOLD INC COMhistory →CS1.53%$579,89211.0K
19DISCOVERY SILVER CORP COMMONCS1.48%$558,775257.5K
20CISCO SYSTEMS INCCS1.43%$541,6507.8K
21VANGUARD RUSSELL 3000 ETFCS1.36%$516,0431.9K
22UNITEDHEALTH GROUP INCCS1.24%$470,4511.5K
23NGEX MINERALS LTD COMCS1.08%$408,45035.0K
24AMZNAMAZON.COM INCCS1.00%$377,5701.7K
25AYA GOLD & SILVER INC COMCS0.95%$359,80040.0K
26UGIUGI CORPORATIONCS0.94%$355,9339.8K
27FNVFRANCO-NEVADA CORPORATIONCS0.87%$327,8402.0K
28BRK/BBERKSHIRE HATHAWAY CLASS BCS0.85%$323,523666
29UNPUNION PACIFIC CORPCS0.84%$317,9711.4K
30CCITIGROUP INC COMCS0.75%$282,1733.3K
31OROGEN ROYALTIES INC COMCS0.74%$280,000200.0K
32AEMAGNICO EAGLE MINES LIMITEDCS0.63%$237,8602.0K
33NEMNEWMONT CORPORATION COMMON STOCS0.62%$233,0404.0K
34EEMISHARES MSCI EMERGING MARKETSCS0.61%$232,0344.8K
35NTHN STAR RES LTD NPVCS0.61%$231,06518.5K
36RUPERT RESOURCES LTDCS0.59%$223,52063.5K
37EVOLUTION MINING LTD US LISTEDCS0.55%$207,08040.0K
38TMOTHERMO FISHER SCIENTIFIC INCCS0.54%$202,730500
39VIZSLA SILVER CORP COM NO PARCS0.47%$177,13560.3K
40SNOWLINE GOLD CORP COMCS0.44%$166,59027.0K
41KGCKINROSS GOLD CORPCS0.41%$156,30010.0K
42SXGCFSOUTHERN CROSS GOLD CONSOLIDATCS0.37%$141,75530.0K
43FIRST MAJESTIC SILVER CORPCS0.26%$99,24012.0K
44ONYX GOLD CORP COMCS0.24%$90,33161.2K
45AURION RESOURCES LTDCS0.22%$83,215156.1K
46DEEP YELLOW LIMITED ORDINARY SCS0.18%$69,31162.2K
47PREDICTIVE DISCOVERY LTD MELBOCS0.17%$66,000300.0K
48SPARTAN RESOURCES LTD ORDINARYCS0.14%$54,50050.0K
49GOGOLD RESOURCES INCCS0.12%$43,90530.0K
50WLFFFWOLFDEN RES CORP COMCS0.05%$19,940398.8K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$44M48Apr 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$44M51Jan 20, 202613F-HRchanges · EDGAR ↗
Q3 2025$46M127Oct 24, 202513F-HRchanges · EDGAR ↗
Q2 2025$38M50Jul 28, 202513F-HRchanges · EDGAR ↗
Q1 2025$35M50Apr 24, 202513F-HRchanges · EDGAR ↗
Q4 2024$33M49Jan 17, 202513F-HRchanges · EDGAR ↗
Q3 2024$36M52Oct 22, 202413F-HRchanges · EDGAR ↗
Q2 2024$34M55Jul 24, 202413F-HRchanges · EDGAR ↗
Q3 2023$33M37Oct 23, 202313F-HRchanges · EDGAR ↗
Q2 2023$37M39Aug 3, 202313F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.