Corundum Trust Company, INC — 13F Holdings & Portfolio
CIK 1987720 · latest 13F-HR filed 2026-04-15
Corundum Trust Company, INC manages $43.8M in 13F-reported U.S. long-equity assets across 48 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are MMM (13.03%), IJR (8.94%), DVY (6.52%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 5 new positions, exited 8, added to 15, and trimmed 18.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$43.8M
Long-equity book
48
Distinct positions
2026-03-31
Filed 2026-04-15
+5 / −8 / ↑15 / ↓18
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- STATE STREET SPDR S&P 500 ETF$349.8K +77.5%
- ISHARES CORE S&P SMALL CAP ETF$300.8K +8.3%
- ISHARES SELECT DIVIDEND ETF$193.8K +7.3%
- ISHARES CORE S&P 500 ETF$143.7K +7.1%
- ISHARES S&P MID CAP 400 GROWTH$142.7K +6.8%
Top Trims
- 3M COMPANY-$564.1K -9.0%
- MICROSOFT CORP-$533.1K -23.0%
- ALPHABET INC CLASS C CAPITAL S-$317.9K -17.2%
- VIZSLA SILVER CORP COM NO PAR-$152.4K -39.7%
- ELI LILLY & CO-$149.2K -12.9%
New Positions
- ISHARES S AND P/TSX CAPPED ENE$546.7K
- UGI CORPORATION$355.9K
- ISHARES S&P 500 GROWTH ETF$351.8K
- ISHARES S&P 500 VALUE ETF$238.6K
- MERCK & CO INC$219.4K
Exited Positions
- OR ROYALTIES INC COM$212.3K
- AURION RESOURCES LTD$157.7K
- RAMELIUS RESOURCES LTD US LIST$95.7K
- ONYX GOLD CORP COM$82.4K
- DEEP YELLOW LIMITED ORDINARY S$75.8K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | 3M COMPANY | MMM | 88579Y101 | $5.7M | 13.03% | 39,280 | SH |
| 2 | ISHARES CORE S&P SMALL CAP ETF | IJR | 464287804 | $3.9M | 8.94% | 31,502 | SH |
| 3 | ISHARES SELECT DIVIDEND ETF | DVY | 464287168 | $2.9M | 6.52% | 18,872 | SH |
| 4 | ISHARES S&P MID CAP 400 GROWTH | IJK | 464287606 | $2.2M | 5.14% | 22,354 | SH |
| 5 | ISHARES CORE S&P 500 ETF | IVV | 464287200 | $2.2M | 4.93% | 3,306 | SH |
| 6 | MICROSOFT CORP | MSFT | 594918104 | $1.8M | 4.08% | 4,823 | SH |
| 7 | ISHARES S&P MID CAP 400 VALUE | IJJ | 464287705 | $1.7M | 3.98% | 13,166 | SH |
| 8 | APPLE INC | AAPL | 037833100 | $1.7M | 3.77% | 6,512 | SH |
| 9 | SKEENA RESOURCES LIMITED NEW C | SKE | 83056P715 | $1.6M | 3.75% | 55,250 | SH |
| 10 | DISCOVERY SILVER CORP COMMON | DSVSF | 254677107 | $1.6M | 3.62% | 247,500 | SH |
| 11 | ALPHABET INC CLASS C CAPITAL S | GOOG | 02079K107 | $1.5M | 3.49% | 5,325 | SH |
| 12 | ISHARES MSCI EAFE ETF | EFA | 464287465 | $1.2M | 2.81% | 12,651 | SH |
| 13 | GREATLAND RES LTD ORDINARY FUL | — | Q4319F106 | $1.1M | 2.55% | 141,250 | SH |
| 14 | ELI LILLY & CO | LLY | 532457108 | $1.0M | 2.30% | 1,095 | SH |
| 15 | LUNDIN GOLD INC COM | — | 550371108 | $838.2K | 1.91% | 11,000 | SH |
| 16 | STATE STREET SPDR S&P 500 ETF | SPY | 78462F103 | $801.2K | 1.83% | 1,232 | SH |
| 17 | JPMORGAN CHASE & CO | JPM | 46625H100 | $728.3K | 1.66% | 2,476 | SH |
| 18 | WESDOME GOLD MINES LTD | WDOFF | 95083R100 | $677.2K | 1.55% | 38,000 | SH |
| 19 | SOLVENTUM CORPORATION COMMON S | SOLV | 83444M101 | $642.0K | 1.47% | 9,831 | SH |
| 20 | AYA GOLD & SILVER INC COM | AYA | 05466C109 | $612.0K | 1.40% | 40,000 | SH |
| 21 | CISCO SYSTEMS INC | CSCO | 17275R102 | $601.8K | 1.37% | 7,756 | SH |
| 22 | NGEX MINERALS LTD NEW COM | — | 62930A102 | $587.3K | 1.34% | 32,500 | SH |
| 23 | ISHARES S AND P/TSX CAPPED ENE | — | 46428C100 | $546.7K | 1.25% | 28,000 | SH |
| 24 | VANGUARD RUSSELL 3000 ETF | VTHR | 92206C599 | $544.1K | 1.24% | 1,892 | SH |
| 25 | FRANCO-NEVADA CORPORATION | FNV | 351858105 | $494.1K | 1.13% | 2,000 | SH |
| 26 | NEWMONT CORPORATION COMMON STO | NEM | 651639106 | $433.0K | 0.99% | 4,000 | SH |
| 27 | AGNICO EAGLE MINES LIMITED | AEM | 008474108 | $406.0K | 0.93% | 2,000 | SH |
| 28 | UNITEDHEALTH GROUP INC | UNH | 91324P102 | $405.6K | 0.93% | 1,499 | SH |
| 29 | CITIGROUP INC COM | C | 172967424 | $376.0K | 0.86% | 3,315 | SH |
| 30 | UGI CORPORATION | UGI | 902681105 | $355.9K | 0.81% | 9,773 | SH |
| 31 | AMAZON.COM INC | AMZN | 023135106 | $354.7K | 0.81% | 1,703 | SH |
| 32 | ISHARES S&P 500 GROWTH ETF | IVW | 464287309 | $351.8K | 0.80% | 3,110 | SH |
| 33 | UNION PACIFIC CORP | UNP | 907818108 | $335.3K | 0.77% | 1,382 | SH |
| 34 | BERKSHIRE HATHAWAY CLASS B | BRK.B | 084670702 | $312.9K | 0.71% | 653 | SH |
| 35 | KINROSS GOLD CORP | KGC | 496902404 | $305.2K | 0.70% | 10,000 | SH |
| 36 | ISHARES MSCI EMERGING MARKETS | EEM | 464287234 | $273.2K | 0.62% | 4,810 | SH |
| 37 | SNOWLINE GOLD CORP COM | SNWGF | 83342V104 | $269.0K | 0.61% | 27,000 | SH |
| 38 | EVOLUTION MINING LTD US LISTED | — | Q3647R147 | $264.0K | 0.60% | 30,000 | SH |
| 39 | FIRST MAJESTIC SILVER CORP | AG | 32076V103 | $257.8K | 0.59% | 12,000 | SH |
| 40 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $245.8K | 0.56% | 500 | SH |
| 41 | G MINING VENTURES CORP NEW COM | CHXMF | 36270K102 | $245.5K | 0.56% | 7,000 | SH |
| 42 | ISHARES S&P 500 VALUE ETF | IVE | 464287408 | $238.6K | 0.54% | 1,130 | SH |
| 43 | VIZSLA SILVER CORP COM NO PAR | VZLA | 92859G608 | $231.8K | 0.53% | 70,250 | SH |
| 44 | MERCK & CO INC | MRK | 58933Y105 | $219.4K | 0.50% | 1,824 | SH |
| 45 | NTHN STAR RES LTD NPV | NESRF | Q6951U101 | $196.2K | 0.45% | 13,500 | SH |
| 46 | SOUTHERN CROSS GOLD CONSOLIDAT | SXGCF | 842685109 | $183.0K | 0.42% | 30,000 | SH |
| 47 | RUPERT RESOURCES LTD | — | 78165J105 | $154.1K | 0.35% | 33,500 | SH |
| 48 | OROGEN ROYALTIES INC NEW COM | — | 687080101 | $129.6K | 0.30% | 50,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-04-15 | $43.8M | 48 | 0001987720-26-000002 |
| 2025-12-31 | 2026-01-20 | $43.9M | 51 | 0001987720-26-000001 |