Stembrook Asset Management, LLC reported 39 positions worth $58.77M for the quarter ended Jun 30, 2026, up 15.2% on the prior quarter. It opened 3 new positions, added to 1, trimmed 2 and exited 1. Its largest holding is Apple Inc. at 68.7% 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 | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| GERN Geron Corp | -20.0K | $29.80K | 0.058% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | AAPL Apple Inc. | Technology | 139.6K | $40.40M | 68.73% | -100 | -0.1% | Reduced | 0% |
| 2 | GOOGL Alphabet Inc. | Technology | 5,810 | $2.08M | 3.53% | 0 | 0.0% | Unchanged | 0% |
| 3 | BRK-B Berkshire Hathaway Inc | Financial Services | 2,855 | $1.43M | 2.43% | -23 | -0.8% | Reduced | 0% |
| 4 | MSFT Microsoft Corp | Technology | 2,510 | $936.28K | 1.59% | 0 | 0.0% | Unchanged | 0% |
| 5 | AMD Advanced Micro Devices Inc | Technology | 1,344 | $780.74K | 1.33% | 0 | 0.0% | Unchanged | 0% |
| 6 | INTC Intel Corp | Technology | 5,239 | $731.52K | 1.24% | 0 | 0.0% | Unchanged | 0% |
| 7 | COF Capital One Financial Corp | Financial Services | 3,500 | $702.17K | 1.19% | 0 | 0.0% | Unchanged | 0% |
| 8 | MPC Marathon Petroleum Corp | Energy | 2,556 | $653.49K | 1.11% | 0 | 0.0% | Unchanged | 0% |
| 9 | CSCO Cisco Systems, Inc. | Technology | 5,293 | $621.72K | 1.06% | 0 | 0.0% | Unchanged | 0% |
| 10 | UMBF Umb Financial Corp | Financial Services | 4,269 | $609.44K | 1.04% | 0 | 0.0% | Unchanged | 0.01% |
| 11 | AMZN Amazon Com Inc | Consumer Discretionary | 2,537 | $604.67K | 1.03% | 0 | 0.0% | Unchanged | 0% |
| 12 | JNJ Johnson & Johnson | Healthcare | 2,359 | $599.12K | 1.02% | 0 | 0.0% | Unchanged | 0% |
| 13 | JPM Jpmorgan Chase & Co | Financial Services | 1,500 | $491.00K | 0.835% | 0 | 0.0% | Unchanged | 0% |
| 14 | WMT Walmart Inc. | Consumer Staples | 4,257 | $482.15K | 0.82% | 0 | 0.0% | Unchanged | 0% |
| 15 | LLY ELI LILLY & Co | Healthcare | 401 | $480.97K | 0.818% | 0 | 0.0% | Unchanged | 0% |
Tip. Select a row to see that position’s full history at Stembrook Asset Management.
As of its Q2 2026 13F filing, Stembrook Asset Management, LLC’s five largest positions were Apple Inc. (AAPL) at 68.7%, Alphabet Inc. (GOOGL) at 3.5%, Berkshire Hathaway Inc (BRK-B) at 2.4%, Microsoft Corp (MSFT) at 1.6%, Advanced Micro Devices Inc (AMD) at 1.3% of the reported portfolio.
Stembrook Asset Management, LLC reported a 13F portfolio worth $58.77M across 39 positions for Q2 2026. That is up 15.2% from the previous quarter.
Its largest purchases by value were Cummins Inc ($242.49K), W.W. Grainger, Inc. ($217.66K), Valero Energy Corp ($205.75K). It opened 3 new positions.
Its largest sales by value were Geron Corp ($29.80K), Apple Inc. ($28.94K), Berkshire Hathaway Inc ($11.51K). It exited 1 positions entirely.
From the Form 13F-HR reports Stembrook Asset Management, LLC 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.