M.D. Sass, LLC - Stock Holdings in 13F Filings (SEC)
Updated on March 15, 2026.
Based on 13F Filings filed with the SEC on February 10, 2026, for the 2025 Q4 period, M.D. Sass, LLC held in its portfolio 35 assets valued at $1,268,766,988 (i.e. $1.27B).
The most valuable assets in the portfolio included: HENRY SCHEIN INC ($93.56M), WILLIAMS COS INC ($80.53M), and CLEAN HARBORS INC ($78.36M).
The chart below shows the top 10 valuable assets, and the table below shows the top 35 valuable assets.
You can see similar for other investment managers.
Related Topics: SEC Topic List.
Data Source: SEC.
M.D. Sass, LLC - Stock Holdings in 13F Filings (SEC)
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| Name of Issuer | No. of Shares | Value ($) | Class |
|---|---|---|---|
| HENRY SCHEIN INC | 1237873 | 93558441 | COM |
| WILLIAMS COS INC | 1339634 | 80525371 | COM |
| CLEAN HARBORS INC | 334198 | 78362747 | COM |
| AMETEK INC | 378980 | 77808464 | COM |
| API GROUP CORP | 2005327 | 76723792 | COM STK |
| DANAHER CORPORATION | 305019 | 69824863 | COM |
| CAPITAL ONE FINL CORP | 244121 | 59165139 | COM |
| STANDARDAERO INC | 1991537 | 57117281 | COM |
| MARTIN MARIETTA MATLS INC | 91204 | 56788929 | COM |
| FAIR ISAAC CORP | 32923 | 55660282 | COM |
| PRIMO BRANDS CORPORATION | 3394495 | 55499987 | CLASS A COM SHS |
| SOMNIGROUP INTERNATIONAL INC | 585651 | 52286905 | COM |
| INTERCONTINENTAL EXCHANGE IN | 322702 | 52264841 | COM |
| STERIS PLC | 205936 | 52208848 | SHS USD |
| WELLTOWER INC | 273040 | 50679017 | COM |
| CBRE GROUP INC | 295737 | 47551552 | CL A |
| QUANTA SVCS INC | 91663 | 38687126 | COM |
| AMAZON COM INC | 167474 | 38656349 | COM |
| AON PLC | 108531 | 38298442 | SHS CL A |
| SLM CORP | 1399804 | 37878703 | COM |
| ALCON AG | 431003 | 33967346 | ORD SHS |
| SPDR S&P 500 ETF TR | 11800 | 8046656 | TR UNIT |
| AMPHENOL CORP NEW | 56282 | 7605949 | CL A |
| PALO ALTO NETWORKS INC | 36228 | 6673198 | COM |
| GUIDEWIRE SOFTWARE INC | 32186 | 6469708 | COM |
| MARVELL TECHNOLOGY INC | 75881 | 6448367 | COM |
| CACI INTL INC | 9316 | 4963658 | CL A |
| ISHARES TR | 22751 | 4785445 | RUS 1000 VAL ETF |
| MICROSOFT CORP | 8870 | 4289709 | COM |
| ISHARES TR | 60600 | 4068078 | MSCI ACWI EX US |
| CADENCE DESIGN SYSTEM INC | 12880 | 4026030 | COM |
| BLUE OWL CAPITAL INC | 158065 | 2361498 | COM CL A |
| BWX TECHNOLOGIES INC | 13445 | 2323834 | COM |
| ALPHABET INC | 7031 | 2200703 | CAP STK CL A |
| LIBERTY MEDIA CORP DEL | 10047 | 989730 | COM LBTY ONE S C |