Overbrook Management Corp reported 42 positions worth $620.43M for the quarter ended Sep 30, 2026, down 3.2% on the prior quarter. It opened 4 new positions, added to 7, trimmed 26 and exited 21. Its largest holding is Nvidia Corp at 11.4% 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 |
|---|---|---|---|---|
| MU Micron Technology Inc | +10.6K | +74.8% | $11.26M | 4.24% |
| STX Seagate Technology Holdings plc | +6,823 | – | $6.29M | 1.01% |
| MP MP Materials Corp. / DE | +94.1K | – | $4.45M | 0.717% |
| GLD Spdr Gold Trust | +9,794 | +116.3% | $3.73M | 1.12% |
| TSM Taiwan Semiconductor Manufacturing Co Ltd | +7,947 | +12.4% | $3.63M | 5.3% |
| USAR USA Rare Earth, Inc. | +223.4K | – | $3.14M | 0.507% |
| AVGO Broadcom Inc. | +8,919 | +8.6% | $3.13M | 6.37% |
| GEV GE Vernova Inc. | +954 | +7.3% | $906.77K | 2.16% |
| NOW ServiceNow, Inc. | +3,817 | +10.7% | $511.52K | 0.853% |
| CAT Caterpillar Inc | +468 | +2.0% | $379.45K | 3.09% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| NFLX Netflix Inc | -164.1K | -100.0% | $11.72M | Exited |
| AMZN Amazon Com Inc | -29.3K | -20.9% | $7.31M | 4.45% |
| HWM Howmet Aerospace Inc. | -22.2K | -100.0% | $5.96M | Exited |
| META Meta Platforms, Inc. | -5,405 | -13.3% | $3.92M | 4.11% |
| COHR Coherent Corp. | -8,284 | -100.0% | $3.27M | Exited |
| AMD Advanced Micro Devices Inc | -5,027 | -20.4% | $3.08M | 1.93% |
| ARES Ares Management Corp | -20.5K | -77.8% | $2.38M | 0.11% |
| ORLY O Reilly Automotive Inc | -26.3K | -6.5% | $2.25M | 5.19% |
| RPRX Royalty Pharma plc | -38.2K | -100.0% | $2.14M | Exited |
| VST Vistra Corp. | -14.0K | -39.4% | $1.94M | 0.479% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| NFLX Netflix Inc | -164.1K | $11.72M | 1.83% |
| HWM Howmet Aerospace Inc. | -22.2K | $5.96M | 0.93% |
| COHR Coherent Corp. | -8,284 | $3.27M | 0.51% |
| RPRX Royalty Pharma plc | -38.2K | $2.14M | 0.334% |
| LRCX Lam Research Corp | -1,711 | $741.43K | 0.116% |
| MA Mastercard Inc | -1,282 | $658.44K | 0.103% |
| HOOD Robinhood Markets, Inc. | -5,210 | $522.46K | 0.082% |
| EQIX Equinix Inc | -446 | $464.91K | 0.073% |
| MDLN Medline Inc. | -10.6K | $416.76K | 0.065% |
| NU Nu Holdings Ltd. | -29.1K | $388.26K | 0.061% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | NVDA Nvidia Corp | Technology | 309.9K | $70.78M | 11.41% | -5,094 | -1.6% | Reduced | 0% |
| 2 | MSFT Microsoft Corp | Technology | 87.2K | $44.74M | 7.21% | -1,319 | -1.5% | Reduced | 0% |
| 3 | GOOG Alphabet Inc. | Technology | 127.9K | $43.58M | 7.02% | -2,290 | -1.8% | Reduced | 0% |
| 4 | AVGO Broadcom Inc. | Technology | 112.6K | $39.55M | 6.37% | +8,919 | +8.6% | Added | 0% |
| 5 | MCK Mckesson Corp | Healthcare | 42.1K | $35.95M | 5.79% | -204 | -0.5% | Reduced | 0.04% |
| 6 | LLY ELI LILLY & Co | Healthcare | 29.4K | $33.97M | 5.48% | -7 | 0.0% | Reduced | 0% |
| 7 | TSM Taiwan Semiconductor Manufacturing Co Ltd | Technology | 72.1K | $32.87M | 5.3% | +7,947 | +12.4% | Added | 0% |
| 8 | ORLY O Reilly Automotive Inc | Consumer Discretionary | 377.0K | $32.20M | 5.19% | -26.3K | -6.5% | Reduced | 0.05% |
| 9 | AAPL Apple Inc. | Technology | 84.5K | $28.13M | 4.53% | -1,101 | -1.3% | Reduced | 0% |
| 10 | AMZN Amazon Com Inc | Consumer Discretionary | 110.9K | $27.63M | 4.45% | -29.3K | -20.9% | Reduced | 0% |
| 11 | MU Micron Technology Inc | Technology | 24.7K | $26.32M | 4.24% | +10.6K | +74.8% | Added | 0% |
| 12 | META Meta Platforms, Inc. | Technology | 35.2K | $25.51M | 4.11% | -5,405 | -13.3% | Reduced | 0% |
| 13 | V Visa Inc. | Financial Services | 63.2K | $22.72M | 3.66% | -694 | -1.1% | Reduced | 0% |
| 14 | CAT Caterpillar Inc | Industrials | 23.7K | $19.18M | 3.09% | +468 | +2.0% | Added | 0.01% |
| 15 | GEV GE Vernova Inc. | Industrials | 14.1K | $13.38M | 2.16% | +954 | +7.3% | Added | 0.01% |
Tip. Select a row to see that position’s full history at Overbrook Management.
As of its Q3 2026 13F filing, Overbrook Management Corp’s five largest positions were Nvidia Corp (NVDA) at 11.4%, Microsoft Corp (MSFT) at 7.2%, Alphabet Inc. (GOOG) at 7.0%, Broadcom Inc. (AVGO) at 6.4%, Mckesson Corp (MCK) at 5.8% of the reported portfolio.
Overbrook Management Corp reported a 13F portfolio worth $620.43M across 42 positions for Q3 2026. That is down 3.2% from the previous quarter.
Its largest purchases by value were Micron Technology Inc ($11.26M), Seagate Technology Holdings plc ($6.29M), MP Materials Corp. / DE ($4.45M). It opened 4 new positions.
Its largest sales by value were Netflix Inc ($11.72M), Amazon Com Inc ($7.31M), Howmet Aerospace Inc. ($5.96M). It exited 21 positions entirely.
From the Form 13F-HR reports Overbrook Management Corp 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.