Corundum Trust Company
Corundum Trust Company reported 28 stocks worth $37.8M in its 13F filing for Q3 2026, filed Oct 29, 2026. Its largest holdings are MMM (17.1%), IJR (11.2%) and DVY (7.6%). Compared with Q2 2026, the fund opened new positions in TGT, trimmed IJR, MSFT and AAPL and sold out of BA.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  MMM 3M Co | $6.4M | 17.1% | 39K | No change | 8 of 8 | |
| 2 |  IJR Ishares TR | $4.2M | 11.2% | 31K | −97 (−0%) | 8 of 8 | |
| 3 |  DVY Ishares Select Dividend | $2.9M | 7.6% | 19K | No change | 8 of 8 | |
| 4 |  IVV Ishares TR | $2.5M | 6.7% | 3,306 | No change | 8 of 8 | |
| 5 |  MSFT Microsoft Corp | $2.5M | 6.5% | 4,812 | −11 (−0%) | 8 of 8 | |
| 6 |  IJK Ishares TR | $2.5M | 6.5% | 22K | No change | 8 of 8 | |
| 7 |  AAPL Apple Inc | $2.2M | 5.7% | 6,491 | −21 (−0%) | 8 of 8 | |
| 8 |  IJJ Ishares TR | $1.8M | 4.8% | 13K | No change | 8 of 8 | |
| 9 |  GOOG Alphabet Inc | $1.8M | 4.8% | 5,296 | −17 (−0%) | 8 of 8 | |
| 10 |  EFA Ishares TR | $1.3M | 3.5% | 13K | −17 (−0%) | 8 of 8 |
Positions at Sep 30, 2026, as reported. Change is against the fund's Q2 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q2 2026, gone in Q3 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
 BA Boeing Co | $207K | 958 |
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q3 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Oct 29, 2026 | 13F-HR | Q3 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Corundum Trust Company 13F FAQ
What does Corundum Trust Company own?
Corundum Trust Company reported 28 stocks worth $37.8M in its 13F filing for Q3 2026, filed Oct 29, 2026. Its largest holdings are MMM (17.1%), IJR (11.2%) and DVY (7.6%). The table above lists every position in the filing (the top 10 without an account).
What did Corundum Trust Company buy and sell in Q3 2026?
Compared with Q2 2026: 1 new positions, 0 added to, 6 trimmed and 1 sold out. New positions include TGT. It sold all of BA.
When will Corundum Trust Company file its next 13F?
Holdings as of Dec 31, 2026 are due by Feb 15, 2027. The filing appears on this page within minutes of reaching the SEC.
How much is Corundum Trust Company's portfolio worth?
The Q3 2026 filing reports $37.8M in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.