Bright Rock Capital Management, LLC reported 71 positions worth $522.62M for the quarter ended Sep 30, 2026, up 5.9% on the prior quarter. It opened 7 new positions, added to 4, trimmed 2 and exited 8. Its largest holding is Microsoft Corp at 7.3% 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 |
|---|---|---|---|---|
| AMZN Amazon Com Inc | +40.0K | +210.5% | $9.97M | 2.81% |
| HONA Honeywell Aerospace Inc. | +56.3K | – | $8.72M | 1.67% |
| NKE NIKE, Inc. | +199.0K | +100.0% | $7.04M | 2.7% |
| CSCO Cisco Systems, Inc. | +60.0K | – | $6.46M | 1.24% |
| NFLX Netflix Inc | +50.0K | +50.0% | $3.48M | 2% |
| UI Ubiquiti Inc. | +6,000 | – | $3.41M | 0.652% |
| DXCM Dexcom Inc | +36.0K | – | $3.11M | 0.594% |
| CPRT Copart Inc | +80.0K | +26.5% | $2.18M | 1.99% |
| AS Amer Sports, Inc. | +73.0K | – | $1.99M | 0.381% |
| CRS Carpenter Technology Corp | +4,500 | – | $1.75M | 0.335% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| VEEV Veeva Systems Inc | -43.0K | -50.0% | $12.27M | 2.35% |
| LULU lululemon athletica inc. | -80.0K | -100.0% | $9.13M | Exited |
| ACN Accenture plc | -60.0K | -100.0% | $7.47M | Exited |
| XOM ExxonMobil Holdings Corp | -40.0K | -100.0% | $5.47M | Exited |
| ANET Arista Networks, Inc. | -20.0K | -44.4% | $4.07M | 0.974% |
| OKE Oneok Inc | -34.9K | -100.0% | $3.03M | Exited |
| LYV Live Nation Entertainment, Inc. | -15.0K | -100.0% | $2.75M | Exited |
| PINS Pinterest, Inc. | -74.0K | -100.0% | $1.56M | Exited |
| PTC Ptc Inc. | -12.5K | -100.0% | $1.42M | Exited |
| FDS Factset Research Systems Inc | -6,000 | -100.0% | $1.38M | Exited |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| HONA Honeywell Aerospace Inc. | +56.3K | $8.72M | 1.67% |
| CSCO Cisco Systems, Inc. | +60.0K | $6.46M | 1.24% |
| UI Ubiquiti Inc. | +6,000 | $3.41M | 0.652% |
| DXCM Dexcom Inc | +36.0K | $3.11M | 0.594% |
| AS Amer Sports, Inc. | +73.0K | $1.99M | 0.381% |
| CRS Carpenter Technology Corp | +4,500 | $1.75M | 0.335% |
| MTSI MACOM Technology Solutions Holdings, Inc. | +5,500 | $1.57M | 0.3% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| LULU lululemon athletica inc. | -80.0K | $9.13M | 1.85% |
| ACN Accenture plc | -60.0K | $7.47M | 1.51% |
| XOM ExxonMobil Holdings Corp | -40.0K | $5.47M | 1.11% |
| OKE Oneok Inc | -34.9K | $3.03M | 0.614% |
| LYV Live Nation Entertainment, Inc. | -15.0K | $2.75M | 0.557% |
| PINS Pinterest, Inc. | -74.0K | $1.56M | 0.315% |
| PTC Ptc Inc. | -12.5K | $1.42M | 0.288% |
| FDS Factset Research Systems Inc | -6,000 | $1.38M | 0.28% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | MSFT Microsoft Corp | Technology | 74.0K | $37.95M | 7.26% | 0 | 0.0% | Unchanged | 0% |
| 2 | GOOGL Alphabet Inc. | Technology | 78.0K | $26.84M | 5.14% | 0 | 0.0% | Unchanged | 0% |
| 3 | NVDA Nvidia Corp | Technology | 110.0K | $25.12M | 4.81% | 0 | 0.0% | Unchanged | 0% |
| 4 | MA Mastercard Inc | Financial Services | 37.5K | $20.68M | 3.96% | 0 | 0.0% | Unchanged | 0% |
| 5 | MRK Merck & Co., Inc. | Healthcare | 142.0K | $20.63M | 3.95% | 0 | 0.0% | Unchanged | 0.01% |
| 6 | AAPL Apple Inc. | Technology | 56.0K | $18.65M | 3.57% | 0 | 0.0% | Unchanged | 0% |
| 7 | TMO Thermo Fisher Scientific Inc. | Healthcare | 27.5K | $18.56M | 3.55% | 0 | 0.0% | Unchanged | 0.01% |
| 8 | AMZN Amazon Com Inc | Consumer Discretionary | 59.0K | $14.70M | 2.81% | +40.0K | +210.5% | Added | 0% |
| 9 | UNP Union Pacific Corp | Industrials | 53.5K | $14.56M | 2.79% | 0 | 0.0% | Unchanged | 0.01% |
| 10 | NKE NIKE, Inc. | Consumer Discretionary | 398.0K | $14.09M | 2.7% | +199.0K | +100.0% | Added | 0.03% |
| 11 | V Visa Inc. | Financial Services | 34.8K | $12.49M | 2.39% | 0 | 0.0% | Unchanged | 0% |
| 12 | INTU Intuit Inc. | Technology | 45.0K | $12.41M | 2.37% | 0 | 0.0% | Unchanged | 0.02% |
| 13 | VEEV Veeva Systems Inc | Technology | 43.0K | $12.27M | 2.35% | -43.0K | -50.0% | Reduced | 0.03% |
| 14 | SCHW Schwab Charles Corp | Financial Services | 125.0K | $12.22M | 2.34% | 0 | 0.0% | Unchanged | 0.01% |
| 15 | BLK BlackRock, Inc. | Financial Services | 10.5K | $11.11M | 2.13% | 0 | 0.0% | Unchanged | 0.01% |
Tip. Select a row to see that position’s full history at Bright Rock Capital Management.
As of its Q3 2026 13F filing, Bright Rock Capital Management, LLC’s five largest positions were Microsoft Corp (MSFT) at 7.3%, Alphabet Inc. (GOOGL) at 5.1%, Nvidia Corp (NVDA) at 4.8%, Mastercard Inc (MA) at 4.0%, Merck & Co., Inc. (MRK) at 3.9% of the reported portfolio.
Bright Rock Capital Management, LLC reported a 13F portfolio worth $522.62M across 71 positions for Q3 2026. That is up 5.9% from the previous quarter.
Its largest purchases by value were Amazon Com Inc ($9.97M), Honeywell Aerospace Inc. ($8.72M), NIKE, Inc. ($7.04M). It opened 7 new positions.
Its largest sales by value were Veeva Systems Inc ($12.27M), lululemon athletica inc. ($9.13M), Accenture plc ($7.47M). It exited 8 positions entirely.
From the Form 13F-HR reports Bright Rock Capital 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.