BRIGHT ROCK CAPITAL MANAGEMENT, LLC
Sector Allocation
- Technology33.1%$175.3M
- Financials17.0%$90.1M
- Healthcare12.3%$65.3M
- Consumer Discretionary11.3%$59.7M
- Industrials7.4%$38.9M
- Consumer Staples5.5%$28.8M
- Materials3.6%$19.1M
- Communication Services3.5%$18.2M
- Energy2.8%$14.6M
- Utilities2.4%$12.6M
AUM History
13fpro.ai/research/fund/bright-rock-capital-management-llc-1509973
Conviction and streaks
Concentrating · top 10 = 40.0%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q3 2026
MSFT
$38.0MGOOGL
$26.8MNVDA
$25.1MMA
$20.7MMRK
$20.6MAAPL
$18.6MTMO
$18.6MAMZN
$14.7MUNP
$14.6MNKE
$14.1MV
$12.5MINTU
$12.4MVEEV
$12.3MSCHW
$12.2MBLK
$11.1MTXN
$10.9MNFLX
$10.4MCPRT
$10.4MTJX
$9.3MSPGI
$8.9M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/bright-rock-capital-management-llc-1509973
BRIGHT ROCK CAPITAL MANAGEMENT, LLC 13F holdings — Q3 2026
$529.1M portfolio (+6.0% QoQ) · 72 holdings · Q3 2026 13F · top 10 are 40% of the stock portfolio
$38.0M
7.2% of stocks
No changeThis quarter+1.4%Since filed13+ qtrsHeld$26.8M
5.1% of stocks
No changeThis quarter-8.6%Since filed11 qtrsHeld$25.1M
4.8% of stocks
No changeThis quarter-9.6%Since filed4 qtrsHeld$20.7M
3.9% of stocks
No changeThis quarter+8.7%Since filed13+ qtrsHeld$20.6M
3.9% of stocks
No changeThis quarter+0.8%Since filed11 qtrsHeld$18.6M
3.5% of stocks
No changeThis quarter+3.3%Since filed13+ qtrsHeld$18.6M
3.5% of stocks
No changeThis quarter+1.2%Since filed13+ qtrsHeld$14.7M
2.8% of stocks
+211%This quarter-0.9%Since filed3 qtrsHeld$14.6M
2.8% of stocks
No changeThis quarter+7.2%Since filed13+ qtrsHeld$14.1M
2.7% of stocks
+100%This quarter+11.6%Since filed13+ qtrsHeld
All holdings — BRIGHT ROCK CAPITAL MANAGEMENT, LLC (Q3 2026)
72 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | VISA INC. | Financials | $12.5M | 2.4% | 35K | — | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | INTUIT INC. | Technology | $12.4M | 2.3% | 45K | — | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | VEEVA SYSTEMS INC | Technology | $12.3M | 2.3% | 43K | -50% | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | SCHWAB CHARLES CORP | Financials | $12.2M | 2.3% | 125K | — | 6 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | BlackRock, Inc. | Financials | $11.1M | 2.1% | 11K | — | 7 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | TEXAS INSTRUMENTS INC | Technology | $10.9M | 2.1% | 39K | — | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | NETFLIX INC | Communication Services | $10.4M | 2.0% | 150K | +50% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | COPART INC | Consumer Discretionary | $10.4M | 2.0% | 382K | +26% | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | TJX COMPANIES INC /DE/ | Consumer Discretionary | $9.3M | 1.8% | 70K | — | 11 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | S&P Global Inc. | Financials | $8.9M | 1.7% | 23K | — | 2 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | Honeywell Aerospace Inc. | Industrials | $8.7M | 1.6% | 56K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | Intercontinental Exchange, Inc. | Financials | $8.4M | 1.6% | 56K | — | 8 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | NEXTERA ENERGY INC | Utilities | $8.3M | 1.6% | 110K | — | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | LINDE PLC | Materials | $8.3M | 1.6% | 18K | — | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | PEPSICO INC | Consumer Staples | $8.2M | 1.6% | 65K | — | 13+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $ELV | Elevance Health, Inc. | Healthcare | $8.2M | 1.5% | 21K | — | |||
| 27 | $VZ | VERIZON COMMUNICATIONS INC | Communication Services | $7.8M | 1.5% | 170K | — | |||
| 28 | $JPM | JPMORGAN CHASE & CO | Financials | $7.3M | 1.4% | 22K | — | |||
| 29 | $APH | AMPHENOL CORP /DE/ | Technology | $7.2M | 1.4% | 86K | +100% | |||
| 30 | $WMT | Walmart Inc. | Consumer Staples | $7.2M | 1.4% | 69K | — | |||
| 31 | — | ISHARES TR - U.S. ENERGY ETF | — | $6.5M | 1.2% | 100K | — | |||
| 32 | $CSCO | CISCO SYSTEMS, INC. | Technology | $6.5M | 1.2% | 60K | New | |||
| 33 | $SLB | SLB LIMITED/NV | Energy | $6.3M | 1.2% | 130K | — | |||
| 34 | $MS | MORGAN STANLEY | Financials | $5.8M | 1.1% | 31K | — | |||
| 35 | $ANET | Arista Networks, Inc. | Technology | $5.1M | 1.0% | 25K | -44% | |||
| 36 | $CL | COLGATE PALMOLIVE CO | Consumer Staples | $5.0M | 0.9% | 59K | — | |||
| 37 | $FAST | FASTENAL CO | Industrials | $5.0M | 0.9% | 102K | — | |||
| 38 | $ECL | ECOLAB INC. | Materials | $4.9M | 0.9% | 18K | — | |||
| 39 | $EOG | EOG RESOURCES INC | Energy | $4.8M | 0.9% | 35K | — | |||
| 40 | $MNST | Monster Beverage Corp | Consumer Staples | $4.4M | 0.8% | 106K | +100% | |||
| 41 | $AME | AMETEK INC/ | Industrials | $4.3M | 0.8% | 18K | — | |||
| 42 | $WEC | WEC ENERGY GROUP, INC. | Utilities | $4.2M | 0.8% | 42K | — | |||
| 43 | $ZTS | Zoetis Inc. | Healthcare | $3.8M | 0.7% | 54K | — | |||
| 44 | $IDXX | IDEXX LABORATORIES INC /DE | Healthcare | $3.7M | 0.7% | 7,000 | — | |||
| 45 | $RMD | RESMED INC | Healthcare | $3.4M | 0.7% | 16K | — | |||
| 46 | $UI | Ubiquiti Inc. | Technology | $3.4M | 0.6% | 6,000 | New | |||
| 47 | $HSY | HERSHEY CO | Consumer Staples | $3.2M | 0.6% | 20K | — | |||
| 48 | $DXCM | DEXCOM INC | Healthcare | $3.1M | 0.6% | 36K | New | |||
| 49 | $JKHY | JACK HENRY & ASSOCIATES INC | Technology | $2.8M | 0.5% | 20K | — | |||
| 50 | $LECO | LINCOLN ELECTRIC HOLDINGS INC | Industrials | $2.6M | 0.5% | 10K | — | |||
| 51 | $TSCO | TRACTOR SUPPLY CO /DE/ | Consumer Discretionary | $2.5M | 0.5% | 80K | — | |||
| 52 | $HLT | Hilton Worldwide Holdings Inc. | Consumer Discretionary | $2.4M | 0.5% | 7,500 | — | |||
| 53 | $EW | Edwards Lifesciences Corp | Healthcare | $2.2M | 0.4% | 25K | — | |||
| 54 | $HEI | HEICO CORP | Industrials | $2.1M | 0.4% | 7,000 | — | |||
| 55 | $ATR | APTARGROUP, INC. | Materials | $2.1M | 0.4% | 18K | — | |||
| 56 | $AS | Amer Sports, Inc. | Consumer Discretionary | $2.0M | 0.4% | 73K | New | |||
| 57 | $TYL | TYLER TECHNOLOGIES INC | Technology | $2.0M | 0.4% | 6,250 | — | |||
| 58 | $VMC | Vulcan Materials CO | Materials | $2.0M | 0.4% | 8,000 | — | |||
| 59 | $ROST | ROSS STORES, INC. | Consumer Discretionary | $1.9M | 0.3% | 8,000 | — | |||
| 60 | $WST | WEST PHARMACEUTICAL SERVICES INC | Healthcare | $1.9M | 0.3% | 5,000 | — | |||
| 61 | $DTM | DT Midstream, Inc. | Energy | $1.8M | 0.3% | 15K | — | |||
| 62 | $CRS | CARPENTER TECHNOLOGY CORP | Materials | $1.7M | 0.3% | 4,500 | New | |||
| 63 | $AJG | Arthur J. Gallagher & Co. | Financials | $1.7M | 0.3% | 7,500 | — | |||
| 64 | $DVN | DEVON ENERGY CORP/DE | Energy | $1.6M | 0.3% | 35K | — | |||
| 65 | $BSY | BENTLEY SYSTEMS INC | Technology | $1.6M | 0.3% | 50K | — | |||
| 66 | $MTSI | MACOM Technology Solutions Holdings, Inc. | Technology | $1.6M | 0.3% | 5,500 | New | |||
| 67 | $SYY | SYSCO CORP | Consumer Discretionary | $1.6M | 0.3% | 20K | — | |||
| 68 | $ROL | ROLLINS INC | Industrials | $1.5M | 0.3% | 50K | — | |||
| 69 | $MORN | Morningstar, Inc. | Financials | $1.4M | 0.3% | 7,500 | — | |||
| 70 | $CMG | CHIPOTLE MEXICAN GRILL INC | Consumer Discretionary | $959K | 0.2% | 30K | — | |||
| 71 | $FICO | FAIR ISAAC CORP | Technology | $948K | 0.2% | 1,600 | — | |||
| 72 | $CLX | CLOROX CO /DE/ | Consumer Staples | $843K | 0.2% | 10K | — |
What changed in Q3 2026
Against the previous quarter's 13F: 7 new, 6 added to, 2 trimmed, 8 sold out. Share-count changes; largest moves by dollar size first.
New positions (7)
$HONAHoneywell Aerospace Inc.$8.7M
first bought this quarter
$CSCOCISCO SYSTEMS, INC.$6.5M
first bought this quarter
$UIUbiquiti Inc.$3.4M
first bought this quarter
$DXCMDEXCOM INC$3.1M
first bought this quarter
$ASAmer Sports, Inc.$2.0M
first bought this quarter
$CRSCARPENTER TECHNOLOGY CORP$1.7M
first bought this quarter
+1 more in the Excel export
Added to (6)
now $14.7M · held 3 qtrs
now $14.1M · held 13+ qtrs
$APHAMPHENOL CORP /DE/+100%
now $7.2M · held 13+ qtrs
now $10.4M · held 2 qtrs, 2 adds in a row
$MNSTMonster Beverage Corp+100%
now $4.4M · held 13+ qtrs
now $10.4M · held 13+ qtrs
Trimmed (2)
Holdings by quarter
Every 13F BRIGHT ROCK CAPITAL MANAGEMENT, LLC has filed, 42 earlier quarters. Pick one to see what it held then.
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Q3 2026 13F filed with the SEC on Oct 5, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of BRIGHT ROCK CAPITAL MANAGEMENT's top 20 holdings: 75/100 (our AI quality score, weighted by position size; 20 of the 20 are scored)
Top 10 since filing
+0.5%
Value-weighted move of the 10 largest stock positions
Turnover
9%
Last quarter; 38% over the last 4
Top 10 weight
40%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
87%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q3 2023 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
BRIGHT ROCK CAPITAL MANAGEMENT, LLC disclosed 72 positions worth $529.1M in its Form 13F-HR for Q3 2026, led by $MSFT (MICROSOFT CORP) at 7.2% of the equity portfolio, followed by $GOOGL and $NVDA. During the quarter the fund opened 7 new positions and exited 8 — including a new stake in $HONA and a full exit from $LULU. The portfolio is most concentrated in Technology (33.1% of disclosed assets). All figures are sourced directly from BRIGHT ROCK CAPITAL MANAGEMENT, LLC’s Form 13F-HR filing with the SEC under CIK 1509973.
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