Corundum Trust Company, INC
13F Reported Value
ⓘ$37.4M
Holdings
28
Latest Filing
2026-06-30
Filing Quarter
Q2 2026
Portfolio Overview
Corundum Trust Company, INC disclosed 28 positions worth $37.4M in its Form 13F-HR for Q2 2026, led by $MMM (3M CO) at 17.0% of the equity portfolio. During the quarter the fund opened 1 new position and exited 21 — including a new stake in $BA. The portfolio is most concentrated in Other (49.4% of disclosed assets). All figures are sourced directly from Corundum Trust Company, INC’s Form 13F-HR filing with the SEC under CIK 1987720.
AI Fund Analysis
ConcentratingSector Allocation
13fpro.ai/research/fund/corundum-trust-company-inc-1987720
AUM History
13fpro.ai/research/fund/corundum-trust-company-inc-1987720
Top Equity Holdings by Value
13fpro.ai/research/fund/corundum-trust-company-inc-1987720
Quarterly Activity — Q2 2026
Click any card to unlockTop Holdings
- 64.7#507
Quality
$6.4M39,280 sh ISHARES CORE S&P SMALL CAP ETF - CS
—Quality
$4.6M31,295 shISHARES SELECT DIVIDEND ETF - CS
—Quality
$2.9M18,840 shISHARES S&P MID CAP 400 GROWTH - CS
—Quality
$2.6M22,354 shISHARES CORE S&P 500 ETF - CS
—Quality
$2.5M3,306 shISHARES S&P MID CAP 400 VALUE - CS
—Quality
$1.9M13,166 sh- 76.3
Quality
$1.9M6,512 sh - 78.1
Quality
$1.9M5,313 sh - 79.7
Quality
$1.8M4,823 sh ISHARES MSCI EAFE ETF - CS
—Quality
$1.3M12,656 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
| 64.7#507 | $6.4M | 39,280 | |
| ISHARES CORE S&P SMALL CAP ETF - CS | — | $4.6M | 31,295 |
| ISHARES SELECT DIVIDEND ETF - CS | — | $2.9M | 18,840 |
| ISHARES S&P MID CAP 400 GROWTH - CS | — | $2.6M | 22,354 |
| ISHARES CORE S&P 500 ETF - CS | — | $2.5M | 3,306 |
| ISHARES S&P MID CAP 400 VALUE - CS | — | $1.9M | 13,166 |
| 76.3 | $1.9M | 6,512 | |
| 78.1 | $1.9M | 5,313 | |
| 79.7 | $1.8M | 4,823 | |
| ISHARES MSCI EAFE ETF - CS | — | $1.3M | 12,656 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of Corundum Trust Company, INC's 28 positions.
Showing top 10 of 28 holdings.
Sector Allocation
Other
$18.5M
Healthcare
$9.3M
Technology
$6.7M
Financials
$1.6M
Industrials
$583,282
Consumer Discretionary
$405,893
Utilities
$337,559
Full Holdings — Corundum Trust Company, INC (Q2 2026)
All 28 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | 3M CO | $6.4M | 17.0% | +0% | 64.7 | |
| 2 | — | ISHARES CORE S&P SMALL CAP ETF - CS | $4.6M | 12.4% | -1% | — |
| 3 | — | ISHARES SELECT DIVIDEND ETF - CS | $2.9M | 7.9% | -0% | — |
| 4 | — | ISHARES S&P MID CAP 400 GROWTH - CS | $2.6M | 7.0% | +0% | — |
| 5 | — | ISHARES CORE S&P 500 ETF - CS | $2.5M | 6.6% | +0% | — |
| 6 | — | ISHARES S&P MID CAP 400 VALUE - CS | $1.9M | 5.2% | +0% | — |
| 7 | Apple Inc. | $1.9M | 5.0% | +0% | 76.3 | |
| 8 | Alphabet Inc. | $1.9M | 5.0% | -0% | 78.1 | |
| 9 | MICROSOFT CORP | $1.8M | 4.8% | +0% | 79.7 | |
| 10 | — | ISHARES MSCI EAFE ETF - CS | $1.3M | 3.5% | +0% | — |
| 11 | ELI LILLY & Co | $1.3M | 3.5% | +0% | 87.5 | |
| 12 | SPDR S&P 500 ETF TRUST | $920,767 | 2.5% | +0% | — | |
| 13 | CISCO SYSTEMS, INC. | $911,020 | 2.4% | +0% | 70.1 | |
| 14 | JPMORGAN CHASE & CO | $810,469 | 2.2% | +0% | 70.3 | |
| 15 | Solventum Corp | $758,462 | 2.0% | +0% | 54.9 | |
| 16 | — | VANGUARD RUSSELL 3000 ETF - CS | $627,058 | 1.7% | +0% | — |
| 17 | UNITEDHEALTH GROUP INC | $623,029 | 1.7% | +0% | 62.5 | |
| 18 | CITIGROUP INC | $463,967 | 1.2% | +0% | 64.7 | |
| 19 | — | ISHARES S&P 500 GROWTH ETF - CS | $427,718 | 1.1% | +0% | — |
| 20 | AMAZON COM INC | $405,893 | 1.1% | +0% | 68.4 | |
| 21 | UNION PACIFIC CORP | $375,904 | 1.0% | +0% | 69.5 | |
| 22 | UGI CORP /PA/ | $337,559 | 0.9% | +0% | 48 | |
| 23 | — | ISHARES MSCI EMERGING MARKETS - CS | $329,052 | 0.9% | +0% | — |
| 24 | BERKSHIRE HATHAWAY INC | $326,755 | 0.9% | +0% | 73.6 | |
| 25 | — | ISHARES S&P 500 VALUE ETF - CS | $256,578 | 0.7% | +0% | — |
| 26 | THERMO FISHER SCIENTIFIC INC. | $250,680 | 0.7% | +0% | 64.9 | |
| 27 | Merck & Co., Inc. | $234,384 | 0.6% | +0% | 59.7 | |
| 28 | BOEING CO | $207,378 | 0.6% | NEW | 61.4 |
New Positions (1)
Exited Positions (21)
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AI-Powered Hedge Fund Analysis: Corundum Trust Company, INC
13F Pro is an AI hedge fund tracker and stock research platform. For Corundum Trust Company, INC (SEC CIK: 1987720), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
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