MATTERN CAPITAL MANAGEMENT, LLC
Sector Allocation
- Technology24.6%$210.8M
- Financials13.8%$117.9M
- Healthcare11.2%$96.1M
- Consumer Discretionary9.8%$83.9M
- Consumer Staples9.7%$83.0M
- Utilities7.8%$66.4M
- Other7.5%$64.1M
- Industrials6.2%$53.4M
- Materials4.0%$34.0M
- Energy3.7%$31.8M
AUM History
13fpro.ai/research/fund/mattern-capital-management-llc-1803227
Conviction and streaks
Stable · top 10 = 17.0%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 — Q2 2026
AAPL
$22.1MGWW
$16.1MMSFT
$15.3MUNH
$14.6MCOST
$13.4MAVGO
$13.3MCOR
$13.3MAFL
$12.9MCSCO
$12.5MLIN
$12.3MCB
$12.3MLLY
$12.2MWEC
$12.1MLOW
$12.1MGD
$11.9MTXN
$11.8MNEE
$11.6MCMS
$11.5MADP
$11.2MAWK
$11.2M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/mattern-capital-management-llc-1803227
MATTERN CAPITAL MANAGEMENT, LLC 13F holdings — Q2 2026
$856.7M portfolio (+2.6% QoQ) · 166 holdings · Q2 2026 13F · top 10 are 17% of the stock portfolio
$22.1M
2.6% of stocks
-2%This quarter+3.3%Since filed3+ qtrsHeld$16.1M
1.9% of stocks
-2%This quarter-1.8%Since filed3+ qtrsHeldAIQuality62.3#713Est. buyEstimated buy price is Pro: unlock with a free trialTrimmed 2 qtrs in a row$15.3M
1.8% of stocks
-0.6%This quarter+39.5%Since filed3+ qtrsHeld$14.6M
1.7% of stocks
-9%This quarter-2.4%Since filed3+ qtrsHeld$13.4M
1.6% of stocks
-0.3%This quarter+7.5%Since filed3+ qtrsHeld$13.3M
1.6% of stocks
-5%This quarter-13.8%Since filed3+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialTrimmed 2 qtrs in a row$13.3M
1.6% of stocks
+12%This quarter+6.5%Since filed3+ qtrsHeld$12.9M
1.5% of stocks
-0.3%This quarter-3.7%Since filed3+ qtrsHeld$12.5M
1.4% of stocks
+5%This quarter-3.4%Since filed3+ qtrsHeld$12.3M
1.4% of stocks
-1%This quarter-0.9%Since filed3+ qtrsHeld
All holdings — MATTERN CAPITAL MANAGEMENT, LLC (Q2 2026)
166 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 | Chubb Ltd | Financials | $12.3M | 1.4% | 36K | -0.4% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | ELI LILLY & Co | Healthcare | $12.2M | 1.4% | 10K | +6% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | WEC ENERGY GROUP, INC. | Utilities | $12.1M | 1.4% | 104K | -6% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | LOWES COMPANIES INC | Consumer Discretionary | $12.1M | 1.4% | 55K | +6% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | GENERAL DYNAMICS CORP | Industrials | $11.9M | 1.4% | 34K | +2% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | TEXAS INSTRUMENTS INC | Technology | $11.8M | 1.4% | 40K | -2% | 3+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | NEXTERA ENERGY INC | Utilities | $11.6M | 1.4% | 132K | -2% | 3+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | CMS ENERGY CORP | Utilities | $11.5M | 1.4% | 151K | -5% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | AUTOMATIC DATA PROCESSING INC | Technology | $11.2M | 1.3% | 50K | +2% | 3+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | American Water Works Company, Inc. | Utilities | $11.2M | 1.3% | 85K | -3% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | Trane Technologies plc | Technology | $11.1M | 1.3% | 23K | -4% | 2 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | AMPHENOL CORP /DE/ | Technology | $11.0M | 1.3% | 63K | +18% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | BROWN & BROWN, INC. | Financials | $10.9M | 1.3% | 170K | +19% | 3+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | SHERWIN WILLIAMS CO | Materials | $10.8M | 1.3% | 31K | +7% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | FACTSET RESEARCH SYSTEMS INC | Technology | $10.8M | 1.3% | 47K | +0.3% | 3+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $LHX | L3HARRIS TECHNOLOGIES, INC. /DE/ | Technology | $10.6M | 1.2% | 37K | +5% | |||
| 27 | $HD | HOME DEPOT, INC. | Consumer Discretionary | $10.6M | 1.2% | 30K | +10% | |||
| 28 | $WMT | Walmart Inc. | Consumer Staples | $10.6M | 1.2% | 93K | +6% | |||
| 29 | $PAYX | PAYCHEX INC | Technology | $10.6M | 1.2% | 108K | +0.3% | |||
| 30 | $ADI | ANALOG DEVICES INC | Technology | $10.5M | 1.2% | 26K | -0.5% | |||
| 31 | $JPM | JPMORGAN CHASE & CO | Financials | $10.4M | 1.2% | 32K | +510% | |||
| 32 | $ECL | ECOLAB INC. | Materials | $10.3M | 1.2% | 37K | +4% | |||
| 33 | $MSI | Motorola Solutions, Inc. | Technology | $10.3M | 1.2% | 25K | +0.5% | |||
| 34 | $ATO | ATMOS ENERGY CORP | Energy | $10.2M | 1.2% | 59K | -0.6% | |||
| 35 | $BLK | BlackRock, Inc. | Financials | $10.2M | 1.2% | 11K | +2% | |||
| 36 | $AMGN | AMGEN INC | Healthcare | $10.1M | 1.2% | 28K | +17% | |||
| 37 | $JNJ | JOHNSON & JOHNSON | Healthcare | $10.1M | 1.2% | 40K | +13% | |||
| 38 | $V | VISA INC. | Financials | $10.1M | 1.2% | 30K | +9% | |||
| 39 | $PH | Parker-Hannifin Corp | Industrials | $9.9M | 1.2% | 10K | +12% | |||
| 40 | $ABT | ABBOTT LABORATORIES | Healthcare | $9.9M | 1.1% | 109K | +3% | |||
| 41 | $ITW | ILLINOIS TOOL WORKS INC | Industrials | $9.9M | 1.1% | 37K | +3% | |||
| 42 | $XYL | Xylem Inc. | Industrials | $9.9M | 1.1% | 83K | +10% | |||
| 43 | $WM | WASTE MANAGEMENT INC | Utilities | $9.8M | 1.1% | 44K | +4% | |||
| 44 | $SPGI | S&P Global Inc. | Financials | $9.8M | 1.1% | 24K | +10% | |||
| 45 | $ROP | ROPER TECHNOLOGIES INC | Technology | $9.8M | 1.1% | 29K | -0.1% | |||
| 46 | $NJR | NEW JERSEY RESOURCES CORP | Energy | $9.8M | 1.1% | 175K | -3% | |||
| 47 | $SYK | STRYKER CORP | Healthcare | $9.8M | 1.1% | 31K | +17% | |||
| 48 | $PLD | Prologis, Inc. | Real Estate | $9.7M | 1.1% | 71K | -2% | |||
| 49 | $CL | COLGATE PALMOLIVE CO | Consumer Staples | $9.6M | 1.1% | 104K | +0.2% | |||
| 50 | $CTAS | CINTAS CORP | Consumer Discretionary | $9.5M | 1.1% | 56K | +8% | |||
| 51 | $BR | BROADRIDGE FINANCIAL SOLUTIONS, INC. | Industrials | $9.1M | 1.1% | 66K | +6% | |||
| 52 | $CHD | CHURCH & DWIGHT CO INC /DE/ | Consumer Staples | $9.0M | 1.1% | 93K | +2% | |||
| 53 | $TSCO | TRACTOR SUPPLY CO /DE/ | Consumer Discretionary | $9.0M | 1.1% | 285K | +44% | |||
| 54 | $PG | PROCTER & GAMBLE Co | Consumer Staples | $9.0M | 1.1% | 61K | +6% | |||
| 55 | $MDT | Medtronic plc | Healthcare | $8.9M | 1.0% | 114K | +14% | |||
| 56 | $WRB | BERKLEY W R CORP | Financials | $8.9M | 1.0% | 126K | +12% | |||
| 57 | $MA | Mastercard Inc | Financials | $8.7M | 1.0% | 17K | +6% | |||
| 58 | $MCD | MCDONALDS CORP | Consumer Discretionary | $8.6M | 1.0% | 32K | +7% | |||
| 59 | $CEG | Constellation Energy Corp | Utilities | $8.5M | 1.0% | 34K | -7% | |||
| 60 | $BDX | BECTON DICKINSON & CO | Healthcare | $8.4M | 1.0% | 56K | +34% | |||
| 61 | $JKHY | JACK HENRY & ASSOCIATES INC | Technology | $8.4M | 1.0% | 61K | +17% | |||
| 62 | $MDLZ | Mondelez International, Inc. | Consumer Staples | $8.3M | 1.0% | 143K | +1% | |||
| 63 | $PEP | PEPSICO INC | Consumer Staples | $8.2M | 1.0% | 61K | +3% | |||
| 64 | $NKE | NIKE, Inc. | Consumer Discretionary | $7.9M | 0.9% | 193K | +43% | |||
| 65 | $ICE | Intercontinental Exchange, Inc. | Financials | $7.6M | 0.9% | 62K | +6% | |||
| 66 | — | VANGUARD INDEX FDS - S&P 500 ETF SHS | — | $7.2M | 0.8% | 10K | — | |||
| 67 | $ZTS | Zoetis Inc. | Healthcare | $7.1M | 0.8% | 99K | +43% | |||
| 68 | $ACN | Accenture plc | Technology | $6.8M | 0.8% | 54K | +13% | |||
| 69 | $INTU | INTUIT INC. | Technology | $6.7M | 0.8% | 26K | +12% | |||
| 70 | $PSX | Phillips 66 | Energy | $6.2M | 0.7% | 37K | -58% | |||
| 71 | — | AMERICAN CENTY ETF TR - AVANTIS CORE FI | — | $6.0M | 0.7% | 146K | -0.3% | |||
| 72 | — | J P MORGAN EXCHANGE TRADED F - ACTIVE BOND ETF | — | $5.8M | 0.7% | 108K | -0.4% | |||
| 73 | — | AMERICAN CENTY ETF TR - US LARGE CAP VLU | — | $4.1M | 0.5% | 45K | +46% | |||
| 74 | $QQQ | INVESCO QQQ TRUST, SERIES 1 | — | $4.0M | 0.5% | 5,431 | — | |||
| 75 | $WT | WisdomTree, Inc. | Financials | $3.6M | 0.4% | 72K | +5% | |||
| 76 | $AMZN | AMAZON COM INC | Consumer Discretionary | $3.6M | 0.4% | 15K | +2% | |||
| 77 | — | STATE STR SPDR DOW JONES IND - UT SER 1 | — | $3.3M | 0.4% | 6,297 | — | |||
| 78 | — | DIMENSIONAL ETF TRUST - US HIGH PROF ETF | — | $3.2M | 0.4% | 76K | +54% | |||
| 79 | — | VANGUARD MUN BD FDS - TAX EXEMPT BD | — | $3.0M | 0.3% | 59K | +30% | |||
| 80 | — | ISHARES TR - TRS FLT RT BD | — | $2.8M | 0.3% | 55K | +6% | |||
| 81 | — | JANUS DETROIT STR TR - HENDRSN SHRT ETF | — | $2.7M | 0.3% | 56K | -3% | |||
| 82 | $GOOG | Alphabet Inc. | Technology | $2.7M | 0.3% | 7,524 | +4% | |||
| 83 | — | ISHARES TR - RUS 1000 VAL ETF | — | $2.5M | 0.3% | 10K | — | |||
| 84 | $TSM | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Technology | $2.4M | 0.3% | 5,057 | -9% | |||
| 85 | $ASML | ASML HOLDING NV | Technology | $2.4M | 0.3% | 1,194 | +2% | |||
| 86 | $NFLX | NETFLIX INC | Communication Services | $2.1M | 0.3% | 30K | +8% | |||
| 87 | $VRTX | VERTEX PHARMACEUTICALS INC / MA | Healthcare | $2.1M | 0.3% | 4,232 | +9% | |||
| 88 | $NVO | NOVO NORDISK A S | Healthcare | $2.0M | 0.2% | 42K | -10% | |||
| 89 | $CBSH | COMMERCE BANCSHARES INC /MO/ | Financials | $2.0M | 0.2% | 34K | -79% | |||
| 90 | $FRT | FEDERAL REALTY INVESTMENT TRUST | Real Estate | $1.9M | 0.2% | 16K | -71% | |||
| 91 | $CRM | Salesforce, Inc. | Technology | $1.8M | 0.2% | 12K | +7% | |||
| 92 | $SPY | SPDR S&P 500 ETF TRUST | — | $1.7M | 0.2% | 2,285 | +2% | |||
| 93 | $BRK.B | BERKSHIRE HATHAWAY INC | Financials | $1.7M | 0.2% | 3,325 | +11% | |||
| 94 | $NVDA | NVIDIA CORP | Technology | $1.7M | 0.2% | 8,306 | +7% | |||
| 95 | $TYL | TYLER TECHNOLOGIES INC | Technology | $1.6M | 0.2% | 5,547 | +12% | |||
| 96 | $RSG | REPUBLIC SERVICES, INC. | Utilities | $1.6M | 0.2% | 7,530 | +35% | |||
| 97 | $AON | Aon plc | Financials | $1.6M | 0.2% | 4,798 | +17% | |||
| 98 | $COP | CONOCOPHILLIPS | Energy | $1.6M | 0.2% | 15K | -11% | |||
| 99 | $MSCI | MSCI Inc. | Financials | $1.6M | 0.2% | 2,819 | +2% | |||
| 100 | — | ISHARES TR - RUS 1000 GRW ETF | — | $1.6M | 0.2% | 13K | +298% | |||
| 101 | — | VANGUARD INDEX FDS - TOTAL STK MKT | — | $1.5M | 0.2% | 4,179 | -5% | |||
| 102 | $AXP | AMERICAN EXPRESS CO | Financials | $1.5M | 0.2% | 4,491 | +18% | |||
| 103 | $WSO | WATSCO INC | Consumer Discretionary | $1.5M | 0.2% | 3,594 | -0.6% | |||
| 104 | $CVX | CHEVRON CORP | Energy | $1.5M | 0.2% | 8,871 | -17% | |||
| 105 | — | AMERICAN CENTY ETF TR - US SML CP VALU | — | $1.5M | 0.2% | 12K | +43% | |||
| 106 | $MCO | MOODYS CORP /DE/ | Financials | $1.4M | 0.2% | 3,166 | +24% | |||
| 107 | $META | Meta Platforms, Inc. | Technology | $1.4M | 0.2% | 2,526 | +9% | |||
| 108 | — | VANGUARD TAX-MANAGED FDS - VAN FTSE DEV MKT | — | $1.3M | 0.2% | 19K | — | |||
| 109 | $DECK | DECKERS OUTDOOR CORP | Consumer Discretionary | $1.3M | 0.1% | 13K | +4% | |||
| 110 | — | DIMENSIONAL ETF TRUST - INTERNATNAL VAL | — | $1.3M | 0.1% | 24K | +57% | |||
| 111 | $ULTA | Ulta Beauty, Inc. | Consumer Discretionary | $1.3M | 0.1% | 2,801 | +14% | |||
| 112 | $O | REALTY INCOME CORP | Real Estate | $1.2M | 0.1% | 20K | -78% | |||
| 113 | — | DIMENSIONAL ETF TRUST - US TARGETED VLU | — | $1.2M | 0.1% | 17K | +38% | |||
| 114 | $IT | GARTNER INC | Technology | $1.2M | 0.1% | 8,917 | +2% | |||
| 115 | — | J P MORGAN EXCHANGE TRADED F - U S TEC LEA ETF | — | $1.1M | 0.1% | 10K | +43% | |||
| 116 | $MRSH | MARSH & MCLENNAN COMPANIES, INC. | Financials | $1.1M | 0.1% | 6,427 | +17% | |||
| 117 | $ORLY | O REILLY AUTOMOTIVE INC | Consumer Discretionary | $1.1M | 0.1% | 12K | +33% | |||
| 118 | — | DIMENSIONAL ETF TRUST - EMERGING MKTS VA | — | $974K | 0.1% | 23K | +54% | |||
| 119 | — | ISHARES TR - MSCI USA QLT FCT | — | $963K | 0.1% | 4,388 | -5% | |||
| 120 | $QCOM | QUALCOMM INC/DE | Technology | $960K | 0.1% | 5,195 | +0.1% | |||
| 121 | $TSLA | Tesla, Inc. | Consumer Discretionary | $938K | 0.1% | 2,231 | +0.1% | |||
| 122 | $DLTR | DOLLAR TREE, INC. | Consumer Staples | $932K | 0.1% | 7,707 | +12% | |||
| 123 | $DG | DOLLAR GENERAL CORP | Consumer Staples | $812K | 0.1% | 7,056 | +23% | |||
| 124 | $CSGP | COSTAR GROUP, INC. | Industrials | $806K | 0.1% | 28K | +44% | |||
| 125 | — | ISHARES TR - CORE S&P500 ETF | — | $771K | 0.1% | 1,030 | — | |||
| 126 | $IVZ | Invesco Ltd. | Financials | $766K | 0.1% | 31K | +0.9% | |||
| 127 | — | ISHARES TR - CALIF MUN BD ETF | — | $700K | 0.1% | 12K | +0.8% | |||
| 128 | $RTX | RTX Corp | Industrials | $596K | 0.1% | 3,142 | -0.1% | |||
| 129 | $THG | HANOVER INSURANCE GROUP, INC. | Financials | $593K | 0.1% | 2,769 | +4% | |||
| 130 | $PPG | PPG INDUSTRIES INC | Materials | $585K | 0.1% | 4,824 | -94% | |||
| 131 | $GOOGL | Alphabet Inc. | Technology | $562K | 0.1% | 1,572 | +16% | |||
| 132 | $PLTR | Palantir Technologies Inc. | Technology | $548K | 0.1% | 4,697 | +1% | |||
| 133 | $XOM.R34088 | EXXON MOBIL CORP | Energy | $507K | 0.1% | 3,708 | +6% | |||
| 134 | $LMT | LOCKHEED MARTIN CORP | Industrials | $496K | 0.1% | 974 | — | |||
| 135 | $SBUX | STARBUCKS CORP | Consumer Discretionary | $453K | 0.1% | 4,432 | -5% | |||
| 136 | — | ISHARES TR - MSCI USA VALUE | — | $449K | 0.1% | 2,245 | -10% | |||
| 137 | $PWR | QUANTA SERVICES, INC. | Industrials | $439K | 0.1% | 610 | — | |||
| 138 | — | FIRST TR EXCHANGE-TRADED ALP - COM SHS | — | $424K | 0.1% | 3,032 | — | |||
| 139 | $WDAY | Workday, Inc. | Technology | $408K | 0.1% | 3,330 | — | |||
| 140 | — | VANGUARD SPECIALIZED FUNDS - DIV APP ETF | — | $404K | 0.1% | 1,706 | — | |||
| 141 | — | ISHARES TR - IBONDS 27 ETF | — | $403K | 0.1% | 17K | — | |||
| 142 | — | ISHARES TR - CORE 1 5 YR USD | — | $379K | 0.0% | 7,855 | — | |||
| 143 | — | BLACKROCK ETF TRUST II - ISHAR INTER ETF | — | $374K | 0.0% | 15K | -0.6% | |||
| 144 | $ET | Energy Transfer LP | Energy | $363K | 0.0% | 19K | — | |||
| 145 | $MRK | Merck & Co., Inc. | Healthcare | $348K | 0.0% | 2,706 | +3% | |||
| 146 | $NVS | NOVARTIS AG | Healthcare | $347K | 0.0% | 2,211 | — | |||
| 147 | — | ISHARES TR - CORE S&P TTL STK | — | $330K | 0.0% | 2,010 | — | |||
| 148 | $OKE | ONEOK INC /NEW/ | Energy | $328K | 0.0% | 3,767 | — | |||
| 149 | — | ISHARES INC - CORE MSCI EMKT | — | $324K | 0.0% | 3,915 | -60% | |||
| 150 | $PAA | PLAINS ALL AMERICAN PIPELINE LP | Energy | $303K | 0.0% | 14K | — |
What changed in Q2 2026
Against the previous quarter's 13F: 3 new, 94 added to, 43 trimmed, 7 sold out. Share-count changes; largest moves by dollar size first.
New positions (3)
Added to (94)
$JPMJPMORGAN CHASE & CO+510%
now $10.4M · held 3+ qtrs, 2 adds in a row
$TSCOTRACTOR SUPPLY CO /DE/+44%
now $9.0M · held 3+ qtrs, 2 adds in a row
$NKENIKE, Inc.+43%
now $7.9M · held 3+ qtrs, 2 adds in a row
$ZTSZoetis Inc.+43%
now $7.1M · held 3+ qtrs, 2 adds in a row
$BDXBECTON DICKINSON & CO+34%
now $8.4M · held 3+ qtrs, 2 adds in a row
$BROBROWN & BROWN, INC.+19%
now $10.9M · held 3+ qtrs, 2 adds in a row
+88 more in the Excel export
Trimmed (43)
$PSXPhillips 66-58%
now $6.2M · held 3+ qtrs, 2 trims in a row
$PPGPPG INDUSTRIES INC-94%
now $585K · held 3+ qtrs, 2 trims in a row
$CBSHCOMMERCE BANCSHARES INC /MO/-79%
now $2.0M · held 3+ qtrs
$FRTFEDERAL REALTY INVESTMENT TRUST-71%
now $1.9M · held 3+ qtrs, 2 trims in a row
$OREALTY INCOME CORP-78%
now $1.2M · held 3+ qtrs, 2 trims in a row
now $14.6M · held 3+ qtrs
+37 more in the Excel export
Holdings by quarter
Every 13F MATTERN CAPITAL MANAGEMENT, LLC has filed, 26 earlier quarters. Pick one to see what it held then.
Is it too late to follow MATTERN CAPITAL MANAGEMENT?
Q2 2026 13F filed with the SEC on Jul 24, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of MATTERN CAPITAL MANAGEMENT's top 20 holdings: 69/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)
Top 10 since filing
+3.5%
Value-weighted move of the 10 largest stock positions
Turnover
6%
Last quarter
Top 10 weight
17%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
0%
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 Q4 2025 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
MATTERN CAPITAL MANAGEMENT, LLC disclosed 166 positions worth $856.7M in its Form 13F-HR for Q2 2026, led by $AAPL (Apple Inc.) at 2.6% of the equity portfolio, followed by $GWW and $MSFT. During the quarter the fund opened 3 new positions and exited 7 — including a new stake in $AMD and a full exit from $MKC. The portfolio is most concentrated in Technology (24.6% of disclosed assets). All figures are sourced directly from MATTERN CAPITAL MANAGEMENT, LLC’s Form 13F-HR filing with the SEC under CIK 1803227.
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