Bright Rock Capital Management, LLC holds a diversified book of 73 reported positions worth $499.1M as of Q2 2026 (disclosed Jul 8, 2026, a ~8-day 13F lag). This quarter they opened S&P Global Inc and trimmed Alphabet Inc-CL A. Their largest long position is Alphabet Inc-CL A at 6% of the reported non-option book. Cloning the disclosed picks since 2024 would be +18% (+9.0%/yr). That is a simulation of the disclosed long book, not audited returns.
Following at the filing date actually beat the quarter-end book by 6.7 points over this window.
Growth of $10,000 cloning Bright Rock Capital Management, LLC's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~8 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
99% mapped to company sectors
+3 sectors below the cut, 7% together
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Bright Rock Capital Management, LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| New World Advisors LLC | 25 / 73 | $459.2M |
| Oakmont Corp | 10 / 73 | $384.3M |
| Unisphere Establishment | 21 / 73 | $8.7B |
| Prospect Hill Management, LLC | 7 / 73 | $190.4M |
| Skye Global Management LP | 11 / 73 | $3.7B |
| Independent Investors Inc | 15 / 73 | $363.9M |
| Cypress Funds LLC | 9 / 73 | $217.6M |
| Ketron Financial | 13 / 73 | $218.6M |
Ranked by the share of each fund's own book sitting in the names it shares with Bright Rock Capital Management, LLC: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Alphabet Inc CAP STK CL A | $27.9M | 78.0K | 5.6% | ▼−26% Reduced · −27K sh | |
| 2 | Microsoft Corp COM | $27.6M | 74.0K | 5.5% | ▲+16% Added · +10K sh | |
| 3 | Nvidia Corporation COM | $22.0M | 110.0K | 4.4% | ▲+38% Added · +30K sh | |
| 4 | Mastercard Incorporated CL A | $19.3M | 37.5K | 3.9% | —Held | |
| 5 | Merck & Co Inc COM | $18.2M | 142.0K | 3.7% | —Held | |
| 6 | Apple Inc COM | $16.2M | 56.0K | 3.2% | —Held | |
| 7 | Veeva Sys Inc CL A COM | $15.3M | 86.0K | 3.1% | ▲+100% Added · +43K sh | |
| 8 | Union Pac Corp COM | $14.6M | 53.5K | 2.9% | —Held | |
| 9 | Thermo Fisher Scientific Inc COM | $13.8M | 27.5K | 2.8% | —Held | |
| 10 | Visa Inc COM CL A | $11.9M | 34.8K | 2.4% | —Held | |
| 11 | Intuit COM | $11.7M | 45.0K | 2.4% | ▲+100% Added · +23K sh | |
| 12 | Texas Instrs Inc COM | $11.6M | 39.0K | 2.3% | ▼−34% Reduced · −20K sh | |
| 13 | Schwab Charles Corp COM | $11.5M | 125.0K | 2.3% | —Held | |
| 14 | TJX Cos Inc New COM | $10.6M | 70.0K | 2.1% | —Held | |
| 15 | BlackRock Inc COM | $10.1M | 10.5K | 2.0% | —Held | |
| 16 | NextEra Energy Inc COM | $9.7M | 110.0K | 1.9% | —Held | |
| 17 | S&P Global Inc COM | $9.2M | 22.5K | 1.8% | ▲New New position | |
| 18 | Lululemon Athletica Inc COM | $9.1M | 80.0K | 1.8% | ▲+100% Added · +40K sh | |
| 19 | Linde PLC SHS | $9.1M | 17.5K | 1.8% | —Held | |
| 20 | Pepsico Inc COM | $8.8M | 65.0K | 1.8% | —Held | |
| 21 | Copart Inc COM | $8.5M | 302.0K | 1.7% | —Held | |
| 22 | Nike Inc CL B | $8.2M | 199.0K | 1.6% | —Held | |
| 23 | Elevance Health Inc Formerly COM | $8.1M | 21.0K | 1.6% | —Held | |
| 24 | Walmart Inc COM | $7.8M | 69.0K | 1.6% | —Held | |
| 25 | Arista Networks Inc COM SHS | $7.6M | 45.0K | 1.5% | —Held | |
| 26 | Amphenol Corp CL A | $7.6M | 43.0K | 1.5% | —Held | |
| 27 | Accenture PLC Ireland SHS CLASS A | $7.5M | 60.0K | 1.5% | ▲New New position | |
| 28 | JPMorgan Chase & Co COM | $7.2M | 22.0K | 1.4% | —Held | |
| 29 | Verizon Communications Inc COM | $7.2M | 170.0K | 1.4% | —Held | |
| 30 | Netflix Inc. COM | $7.1M | 100.0K | 1.4% | ▲New New position | |
| 31 | Intercontinental Exchange In COM | $6.8M | 55.5K | 1.4% | —Held | |
| 32 | Morgan Stanley COM NEW | $6.5M | 31.0K | 1.3% | —Held | |
| 33 | SLB Limited COM STK | $6.0M | 130.0K | 1.2% | —Held | |
| 34 | Ishares TR U.S. ENERGY ETF | $5.7M | 100.0K | 1.1% | ▼−67% Reduced · −200K sh | |
| 35 | Exxon Mobil Corp COM | $5.5M | 40.0K | 1.1% | —Held | |
| 36 | Colgate Palmolive Co COM | $5.4M | 59.0K | 1.1% | —Held | |
| 37 | Monster Beverage Corp New COM | $5.1M | 53.0K | 1.0% | —Held | |
| 38 | Ecolab Inc COM | $5.0M | 18.0K | 1.0% | —Held | |
| 39 | Wec Energy Group Inc COM | $4.9M | 42.0K | 1.0% | —Held | |
| 40 | Fastenal Co COM | $4.9M | 101.6K | 1.0% | —Held | |
| 41 | Eog Res Inc COM | $4.5M | 35.0K | 0.9% | —Held | |
| 42 | Amazon Com Inc COM | $4.5M | 19.0K | 0.9% | —Held | |
| 43 | Ametek Inc COM | $4.2M | 17.5K | 0.8% | —Held | |
| 44 | Zoetis Inc CL A | $3.9M | 54.0K | 0.8% | —Held | |
| 45 | Idexx Labs Inc COM | $3.7M | 7.0K | 0.7% | —Held | |
| 46 | Hershey Co COM | $3.5M | 20.0K | 0.7% | —Held | |
| 47 | Oneok Inc New COM | $3.0M | 34.9K | 0.6% | —Held | |
| 48 | Resmed Inc COM | $3.0M | 15.5K | 0.6% | —Held | |
| 49 | Live Nation Entertainment In COM | $2.7M | 15.0K | 0.6% | —Held | |
| 50 | Henry Jack & Assoc Inc COM | $2.7M | 19.6K | 0.5% | —Held |
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
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Use Arkolith to show BRIGHT ROCK CAPITAL MANAGEMENT, LLC's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
| Quarter | As of | Filed | Lag | Positions | Value | Form |
|---|---|---|---|---|---|---|
| Q2 2026 | Jun 30, 2026 | Jul 8, 2026 | 8d | 73 | $499.1M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | Apr 16, 2026 | 16d | 75 | $505.9M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Jan 15, 2026 | 15d | 77 | $508.7M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 4, 2025 | 35d | 73 | $510.2M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 10, 2025 | 10d | 74 | $494.0M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 16, 2025 | 16d | 76 | $474.7M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jan 14, 2025 | 14d | 71 | $468.9M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Oct 3, 2024 | 3d | 71 | $497.3M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.