Cornerstone Management, Inc. reported 24 positions worth $28.13M for the quarter ended Sep 30, 2026, up 0.9% on the prior quarter. It opened 1 new position, added to 6, trimmed 5 and exited 0. Its largest holding is Berkshire Hathaway Inc at 29.2% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| WES Western Midstream Partners, LP | +10.0K | +59.8% | $443.70K | 4.22% |
| IBIT iShares Bitcoin Trust ETF | +4,434 | – | $209.91K | 0.746% |
| SLV iShares Silver Trust | +387 | +9.0% | $21.10K | 0.906% |
| GLD Spdr Gold Trust | +49 | +5.3% | $18.66K | 1.32% |
| DUK Duke Energy CORP | +125 | +5.7% | $14.25K | 0.941% |
| LRCX Lam Research Corp | +3 | +0.1% | $985.53 | 4.72% |
| SO Southern Co | +1 | +0.0% | $82.90 | 1.12% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| IBIT iShares Bitcoin Trust ETF | +4,434 | $209.91K | 0.746% |
No positions were closed this quarter.
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | BRK-A Berkshire Hathaway Inc | Financial Services | 11 | $8.22M | 29.21% | 0 | 0.0% | Unchanged | 0% |
| 2 | BRK-B Berkshire Hathaway Inc | Financial Services | 15.8K | $7.85M | 27.91% | -54 | -0.3% | Reduced | 0% |
| 3 | LRCX Lam Research Corp | Technology | 4,038 | $1.33M | 4.72% | +3 | +0.1% | Added | 0% |
| 4 | WES Western Midstream Partners, LP | Energy | 26.7K | $1.19M | 4.22% | +10.0K | +59.8% | Added | 0.01% |
| 5 | KO Coca Cola Co | Consumer Staples | 11.8K | $1.02M | 3.61% | -280 | -2.3% | Reduced | 0% |
| 6 | AFL Aflac Inc | Financial Services | 8,624 | $963.96K | 3.43% | 0 | 0.0% | Unchanged | 0% |
| 7 | GL Globe Life Inc. | Financial Services | 5,220 | $864.69K | 3.07% | 0 | 0.0% | Unchanged | 0.01% |
| 8 | GPN Global Payments Inc | Technology | 10.3K | $839.49K | 2.98% | 0 | 0.0% | Unchanged | 0% |
| 9 | NVDA Nvidia Corp | Technology | 3,384 | $772.84K | 2.75% | -94 | -2.7% | Reduced | 0% |
| 10 | BAC Bank Of America Corp | Financial Services | 10.2K | $555.19K | 1.97% | 0 | 0.0% | Unchanged | 0% |
| 11 | LLY ELI LILLY & Co | Healthcare | 458 | $530.04K | 1.88% | -3 | -0.7% | Reduced | 0% |
| 12 | SSB SouthState Bank Corp | Financial Services | 4,588 | $456.78K | 1.62% | 0 | 0.0% | Unchanged | 0% |
| 13 | GLD Spdr Gold Trust | Others | 975 | $371.32K | 1.32% | +49 | +5.3% | Added | 0% |
| 14 | MSFT Microsoft Corp | Technology | 699 | $358.52K | 1.27% | 0 | 0.0% | Unchanged | 0% |
| 15 | CSX Csx Corp | Industrials | 7,262 | $337.76K | 1.2% | 0 | 0.0% | Unchanged | 0% |
Tip. Select a row to see that position’s full history at Cornerstone Management.
As of its Q3 2026 13F filing, Cornerstone Management, Inc.’s five largest positions were Berkshire Hathaway Inc (BRK-A) at 29.2%, Berkshire Hathaway Inc (BRK-B) at 27.9%, Lam Research Corp (LRCX) at 4.7%, Western Midstream Partners, LP (WES) at 4.2%, Coca Cola Co (KO) at 3.6% of the reported portfolio.
Cornerstone Management, Inc. reported a 13F portfolio worth $28.13M across 24 positions for Q3 2026. That is up 0.9% from the previous quarter.
Its largest purchases by value were Western Midstream Partners, LP ($443.70K), iShares Bitcoin Trust ETF ($209.91K), iShares Silver Trust ($21.10K). It opened 1 new positions.
Its largest sales by value were Berkshire Hathaway Inc ($26.89K), Coca Cola Co ($24.10K), Nvidia Corp ($21.47K). It exited 0 positions entirely.
From the Form 13F-HR reports Cornerstone Management, Inc. files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.