M.D. Sass, Llc
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$1.32B
Q ending 2026-03-31
Prior quarter
$1.27B
Q ending 2025-12-31
Change
+4.0% QoQ · +16.1% YoY
Positions
36
reported holdings
Largest positions
All 36 reported positions, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Schein Henry Inc | HSIC | Shares | $93.8M | 1.3M |
| Williams Cos Inc | WMB | Shares | $85.4M | 1.2M |
| Ametek Inc | AME | Shares | $77.6M | 362K |
| Clean Harbors Inc | CLH | Shares | $72.4M | 253K |
| Rbb Fund Trust | SASS | Shares | $66.9M | 2.9M |
| Primo Brands Corporation | PRMB | Shares | $63.7M | 3.4M |
| Martin Marietta Matls Inc | MLM | Shares | $60.7M | 103K |
| Intercontinental Exchange In | ICE | Shares | $58.9M | 374K |
| Quest Diagnostics Inc | DGX | Shares | $58.7M | 299K |
| Api Group Corp | APG | Shares | $56.1M | 1.4M |
| Standardaero Inc | SARO | Shares | $55.5M | 2.1M |
| Amazon Com Inc | AMZN | Shares | $55.0M | 264K |
| Capital One Finl Corp | COF | Shares | $53.4M | 293K |
| Welltower Inc | WELL | Shares | $50.5M | 256K |
| Somnigroup International Inc | SGI | Shares | $47.5M | 642K |
| Fair Isaac Corp | FICO | Shares | $47.2M | 44K |
| Aon Plc | Shares | $46.0M | 142K | |
| Cbre Group Inc | CBRE | Shares | $39.3M | 290K |
| Danaher Corp Del | DHR | Shares | $38.1M | 201K |
| C H Robinson Worldwide In | CHRW | Shares | $37.5M | 226K |
| Quanta Svcs Inc | PWR | Shares | $34.8M | 63K |
| Synopsys Inc | SNPS | Shares | $30.5M | 77K |
| Gildan Activewear Inc | GIL | Shares | $22.1M | 397K |
| Guidewire Software Inc | GWRE | Shares | $8.3M | 55K |
| Palo Alto Networks Inc | PANW | Shares | $8.1M | 51K |
| Marvell Technology Inc | MRVL | Shares | $7.6M | 77K |
| State Str Spdr S&P 500 Etf T | SPY | Shares | $7.4M | 11K |
| Amphenol Corp | APH | Shares | $7.1M | 56K |
| Ishares Tr | IWD | Shares | $7.0M | 33K |
| Caci Intl Inc | CACI | Shares | $5.1M | 9K |
| Ishares Tr | ACWX | Shares | $3.9M | 57K |
| Microsoft Corp | MSFT | Shares | $3.6M | 10K |
| Cadence Design System Inc | CDNS | Shares | $3.6M | 13K |
| Bwx Technologies Inc | BWXT | Shares | $2.8M | 13K |
| Alphabet Inc | GOOGL | Shares | $2.0M | 7K |
| Ishares Tr | HYG | Shares | $987K | 12K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.