Investor
M.D. Sass, LLC
CIK 0000922940 · filed 2026-05-14 · SEC filing
13F book
$1.32B
Positions
36
6 new · 5 sold
Largest name
7.1%
Henry Schein Inc · HSIC
Est. mark
−$28.3M
Price effect on 30 names still held. Flow $78.7M.
| Name | Ticker | Shares | Value | Weight | Est. mark | Change |
|---|---|---|---|---|---|---|
| Henry Schein Inc | HSIC | 1.27M | $93.8M | 7.1% | −$2.33M | Added$284.9K |
| Williams Cos Inc | — | 1.17M | $85.4M | 6.5% | $14.9M | Cut$4.91M |
| Ametek Inc/ | AME | 361.8K | $77.6M | 5.9% | $3.27M | Cut−$254.1K |
| Clean Harbors Inc | CLH | 252.5K | $72.4M | 5.5% | $13.2M | Cut−$5.95M |
| Rbb Fund Trust | — | 2.88M | $66.9M | 5.1% | — | New |
| Primo Brands Corp | PRMB | 3.38M | $63.7M | 4.8% | $8.39M | Cut$8.2M |
| Martin Marietta Matls Inc | — | 103.1K | $60.7M | 4.6% | −$3.1M | Added$3.91M |
| Intercontinental Exchange In | — | 374.4K | $58.9M | 4.5% | −$1.51M | Added$6.62M |
| Quest Diagnostics Inc | DGX | 299.5K | $58.7M | 4.4% | — | New |
| Api Group Corp | APG | 1.38M | $56.1M | 4.3% | $3.13M | Cut−$20.7M |
| StandardAero, Inc. | SARO | 2.15M | $55.5M | 4.2% | −$5.68M | Added−$1.59M |
| Amazon Com Inc | AMZN | 264K | $55M | 4.2% | −$3.78M | Added$16.3M |
| Capital One Finl Corp | — | 292.9K | $53.4M | 4.1% | −$14.6M | Added−$5.73M |
| Welltower Inc. | WELL | 255.6K | $50.5M | 3.8% | $3.09M | Cut−$146K |
| Somnigroup International Inc. | SGI | 642.4K | $47.5M | 3.6% | −$9M | Added−$4.8M |
| Fair Isaac Corp | FICO | 44.2K | $47.2M | 3.6% | −$20.5M | Added−$8.45M |
| Aon plc | AON | 142.4K | $46M | 3.5% | −$3.27M | Added$7.65M |
| Cbre Group, Inc. | CBRE | 290.5K | $39.3M | 3.0% | −$7.36M | Cut−$8.2M |
| Danaher Corporation | — | 201.2K | $38.1M | 2.9% | −$7.91M | Cut−$31.7M |
| C. H. Robinson Worldwide, Inc. | CHRW | 226K | $37.5M | 2.8% | — | New |
| Quanta Svcs Inc | — | 63.4K | $34.8M | 2.6% | $8.05M | Cut−$3.86M |
| Synopsys Inc | SNPS | 76.8K | $30.5M | 2.3% | — | New |
| Gildan Activewear Inc. | GIL | 396.5K | $22.1M | 1.7% | — | New |
| Guidewire Software, Inc. | GWRE | 55.2K | $8.26M | 0.6% | −$1.66M | Added$1.79M |
| Palo Alto Networks Inc | PANW | 50.5K | $8.1M | 0.6% | −$865.1K | Added$1.43M |
| Marvell Technology, Inc. | MRVL | 76.8K | $7.6M | 0.6% | $1.07M | Added$1.16M |
| Spdr S&P 500 Etf Tr | — | 11.4K | $7.44M | 0.6% | −$361.3K | Cut−$606.8K |
| Amphenol Corp New | — | 56.2K | $7.1M | 0.5% | −$493.8K | Cut−$507.4K |
| Ishares Tr | — | 33K | $7.05M | 0.5% | $75.8K | Added$2.26M |
| Caci Intl Inc | — | 9.32K | $5.07M | 0.4% | $103K | Held |
| Ishares Tr | — | 57.3K | $3.93M | 0.3% | $76.8K | Cut−$142K |
| Microsoft Corp | MSFT | 9.71K | $3.59M | 0.3% | −$1.01M | Added−$696.1K |
| Cadence Design System Inc | — | 12.9K | $3.58M | 0.3% | −$447.1K | Added−$445.1K |
| BWX Technologies, Inc. | BWXT | 13.5K | $2.75M | 0.2% | $425.5K | Added$427.2K |
| Alphabet Inc | — | 7.03K | $2.02M | 0.2% | −$178.9K | Held |
| Ishares Tr | — | 12.4K | $986.5K | 0.1% | — | New |
Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.