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Super Investors Corundum Trust Company, INC
CT

Corundum Trust Company, INC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$37.8M
Positions
28
Quarter ended
September 30, 2026
Filed
October 29, 2026

Reported portfolio value by quarter (12 quarters reported)

$46.1M $33.3M
Q2 23 Q3 24 Q2 25 Q1 26 Q3 26

$36.6M in Q2 2023 → $37.8M now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
3m Company 17.1% Unchanged 39,280 $6.45M
IC Ishares Core S&P Small Cap ETF 11.2% Trimmed 0.3% 31,198 $4.24M
IS Ishares Select Dividend ETF 7.6% Unchanged 18,840 $2.86M
IC Ishares Core S&P 500 ETF 6.7% Unchanged 3,306 $2.53M
Microsoft Corp 6.5% Trimmed 0.2% 4,812 $2.47M
IS Ishares S&P Mid Cap 400 Growth 6.5% Unchanged 22,354 $2.45M
Apple Inc 5.7% Trimmed 0.3% 6,491 $2.16M
IS Ishares S&P Mid Cap 400 Value 4.8% Unchanged 13,166 $1.81M
AC Alphabet Inc Class C Capital S 4.8% Trimmed 0.3% 5,296 $1.8M
IM Ishares Msci Eafe ETF 3.5% Trimmed 0.1% 12,639 $1.31M
EL Eli Lilly & Co 3.4% Unchanged 1,095 $1.27M
SS State Street SPDR S&P 500 ETF 2.5% Trimmed 0.8% 1,223 $933K
SC Solventum Corporation Common S 2.3% Unchanged 9,831 $867K
Cisco Systems Inc 2.2% Unchanged 7,756 $835K
Jpmorgan Chase & Co 2.2% Unchanged 2,476 $819K
VR Vanguard Russell 3000 ETF 1.7% Unchanged 1,892 $635K
Unitedhealth Group Inc 1.5% Unchanged 1,499 $550K
IS Ishares S&P 500 Growth ETF 1.2% Unchanged 3,110 $442K
CC Citigroup Inc Com 1.1% Unchanged 3,315 $429K
Amazon.com Inc 1.1% Unchanged 1,703 $424K
Union Pacific Corp 1.0% Unchanged 1,382 $376K
Ugi Corporation 0.9% Unchanged 9,773 $349K
Thermo Fisher Scientific Inc 0.9% Unchanged 500 $338K
BH Berkshire Hathaway Class B 0.9% Unchanged 653 $325K
IM Ishares Msci Emerging Markets 0.9% Unchanged 4,810 $321K
Merck & Co Inc 0.7% Unchanged 1,824 $265K
IS Ishares S&P 500 Value ETF 0.7% Unchanged 1,130 $258K
Target Corp 0.6% New 1,460 $229K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2026

quarter ended September 30, 2026 · filed October 29, 2026

Company Action Shares changed Value of change % of portfolio
Target Corp New +1,460 +$229K 0.6%
Boeing Co Exited −958 −$207K —
IC Ishares Core S&P Small Cap ETF Trimmed −97 −$13.2K 11.2%
SS State Street SPDR S&P 500 ETF Trimmed −10 −$7.63K 2.5%
Apple Inc Trimmed −21 −$6.99K 5.7%
AC Alphabet Inc Class C Capital S Trimmed −17 −$5.79K 4.8%
Microsoft Corp Trimmed −11 −$5.64K 6.5%
IM Ishares Msci Eafe ETF Trimmed −17 −$1.77K 3.5%

Q2 2026

quarter ended June 30, 2026 · filed July 29, 2026

Company Action Shares changed Value of change % of portfolio
SR Skeena Resources Limited New C Exited −55,250 −$1.64M —
DS Discovery Silver Corp Common Exited −247,500 −$1.59M —
GR Greatland Res Ltd Ordinary Ful Exited −141,250 −$1.12M —
LG Lundin Gold Inc Com Exited −11,000 −$838K —
WG Wesdome Gold Mines Ltd Exited −38,000 −$677K —
AG Aya Gold & Silver Inc Com Exited −40,000 −$612K —
NM Ngex Minerals Ltd New Com Exited −32,500 −$587K —
IS Ishares S And P/tsx Capped Ene Exited −28,000 −$547K —
Franco-nevada Corporation Exited −2,000 −$494K —
NC Newmont Corporation Common Sto Exited −4,000 −$433K —

Showing the 10 largest of 27 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 15, 2026

Company Action Shares changed Value of change % of portfolio
IS Ishares S And P/tsx Capped Ene New +28,000 +$547K 1.2%
SS State Street SPDR S&P 500 ETF Added +570 +$371K 1.8%
Ugi Corporation New +9,773 +$356K 0.8%
IS Ishares S&P 500 Growth ETF New +3,110 +$352K 0.8%
SR Skeena Resources Limited New C Trimmed −8,500 −$253K 3.7%
IS Ishares S&P 500 Value ETF New +1,130 +$239K 0.5%
IC Ishares Core S&P 500 ETF Added +363 +$237K 4.9%
Merck & Co Inc New +1,824 +$219K 0.5%
OR Or Royalties Inc Com Exited −6,000 −$212K —
WG Wesdome Gold Mines Ltd Trimmed −10,000 −$178K 1.5%

Showing the 10 largest of 35 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 20, 2026

Company Action Shares changed Value of change % of portfolio
NM Ngex Minerals Ltd New Com New +35,000 +$653K 1.5%
NM Ngex Minerals Ltd Com Exited −35,000 −$653K —
SS SPDR S&P 500 ETF Trust Trimmed −954 −$651K 1.0%
Ugi Corporation Exited −9,773 −$325K —
IC Ishares Core S&P Small Cap ETF Trimmed −2,016 −$242K 8.2%
3m Company Trimmed −1,269 −$203K 14.3%
Boeing Co Exited −886 −$191K —
VF Vanguard Ftse Emerging Markets Exited −3,325 −$180K —
Triple Flag Precious Metals Co Exited −5,802 −$170K —
Merck & Co Inc Exited −1,963 −$165K —

Showing the 10 largest of 94 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 24, 2025

Company Action Shares changed Value of change % of portfolio
GR Greatland Res Ltd Ordinary Ful New +151,250 +$718K 1.6%
Greatland Resources Exited −151,250 −$708K —
OR Orogen Royalties Inc Com Exited −200,000 −$280K —
OR Or Royalties Inc Com New +6,000 +$240K 0.5%
Boeing Co New +886 +$191K 0.4%
VF Vanguard Ftse Emerging Markets New +3,325 +$180K 0.4%
Triple Flag Precious Metals Co New +5,802 +$170K 0.4%
Merck & Co Inc New +1,963 +$165K 0.4%
Target Corp New +1,829 +$164K 0.4%
Walt Disney Co New +1,343 +$154K 0.3%

Showing the 10 largest of 98 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 28, 2025

Company Action Shares changed Value of change % of portfolio
Greatland Resources New +151,250 +$708K 1.9%
LG Lundin Gold Inc Com New +11,000 +$580K 1.5%
GG Greatland Gold Exited −3,000,000 −$464K —
OR Orogen Royalties Inc Com Trimmed −323,500 −$453K 0.7%
DS Discovery Silver Corp Common Added +202,500 +$439K 1.5%
Mag Silver Corp Exited −28,150 −$430K —
NC Newmont Corporation Common Sto New +4,000 +$233K 0.6%
AG Aya Gold & Silver Inc Com Added +25,000 +$225K 1.0%
Microsoft Corp Trimmed −284 −$141K 6.5%
IC Ishares Core S&P Small Cap ETF Trimmed −992 −$108K 9.3%

Showing the 10 largest of 32 changes.

Q1 2025

quarter ended March 31, 2025 · filed April 24, 2025

Company Action Shares changed Value of change % of portfolio
SS SPDR S&P 500 ETF Trust Added +969 +$542K 2.6%
Ugi Corporation New +11,373 +$376K 1.1%
Apple Inc Trimmed −1,195 −$265K 4.2%
Target Corp Exited −1,768 −$239K —
Agnico Eagle Mines Limited New +2,000 +$217K 0.6%
IC Ishares Core S&P Small Cap ETF Added +1,800 +$188K 10.0%
Microsoft Corp Trimmed −466 −$175K 5.7%
DS Discovery Silver Corp Common New +55,000 +$81K 0.2%
SC Southern Cross Gold Consolidat New +20,000 +$60.1K 0.2%
GG G2 Goldfields Inc Com New +25,000 +$56.1K 0.2%

Showing the 10 largest of 23 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 17, 2025

Company Action Shares changed Value of change % of portfolio
SS SPDR S&P 500 ETF Trust Trimmed −998 −$585K 1.2%
SM Silvercrest Metals Inc Com Exited −49,500 −$458K —
Ugi Corporation Exited −11,373 −$285K —
Merck & Co Inc Exited −1,982 −$225K —
IC Ishares Core S&P Small Cap ETF Trimmed −1,800 −$207K 10.9%
OG Osisko Gold Royalties Ltd Com Exited −10,000 −$185K —
Apple Inc Trimmed −608 −$152K 5.8%
VS Vizsla Silver Corp Com No Par Exited −60,250 −$116K —
AG Aya Gold & Silver Inc Com New +15,000 +$112K 0.3%
VS Vizsla Silver Corp Com No Par New +60,250 +$103K 0.3%

Showing the 10 largest of 35 changes.

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