M.D. Sass, Llc
- Regulatory AUM
- $2.1B
- Discretionary
- $2.1B
- Clients
- 83
- Avg AUM / client
- $24.9M
- Accounts
- 83
- Employees
- 19
AUM over time
Annual snapshots from Form ADV filings · as of Mar 31, 2026
Investments (13F portfolio — 36 positions, $1,319,173,469)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | Schein Henry Inc | COM | $93,843,389 | 1,273,316 | 7.11% | 4.55% |
| 2 | Williams Cos Inc | COM | $85,437,917 | 1,173,920 | 6.48% | 4.14% |
| 3 | Ametek Inc | COM | $77,554,331 | 361,795 | 5.88% | 3.76% |
| 4 | Clean Harbors Inc | COM | $72,410,794 | 252,540 | 5.49% | 3.51% |
| 5 | Rbb Fund Trust | M D SASS CONCEN | $66,929,853 | 2,884,000 | 5.07% | 3.24% |
| 6 | Primo Brands Corporation | CLASS A COM SHS | $63,702,204 | 3,383,017 | 4.83% | 3.09% |
| 7 | Martin Marietta Matls Inc | COM | $60,698,024 | 103,109 | 4.6% | 2.94% |
| 8 | Intercontinental Exchange In | COM | $58,880,547 | 374,368 | 4.46% | 2.85% |
| 9 | Quest Diagnostics Inc | COM | $58,687,975 | 299,459 | 4.45% | 2.84% |
| 10 | Api Group Corp | COM STK | $56,064,890 | 1,383,635 | 4.25% | 2.72% |
| 11 | Standardaero Inc | COM | $55,526,234 | 2,149,680 | 4.21% | 2.69% |
| 12 | Amazon Com Inc | COM | $54,977,657 | 263,973 | 4.17% | 2.66% |
| 13 | Capital One Finl Corp | COM | $53,433,992 | 292,901 | 4.05% | 2.59% |
| 14 | Welltower Inc | COM | $50,533,058 | 255,592 | 3.83% | 2.45% |
| 15 | Somnigroup International Inc | COM | $47,482,814 | 642,354 | 3.6% | 2.3% |
| 16 | Fair Isaac Corp | COM | $47,207,686 | 44,221 | 3.58% | 2.29% |
| 17 | Aon Plc | SHS CL A | $45,951,596 | 142,362 | 3.48% | 2.23% |
| 18 | Cbre Group Inc | CL A | $39,349,098 | 290,485 | 2.98% | 1.91% |
| 19 | Danaher Corp Del | COM | $38,147,723 | 201,201 | 2.89% | 1.85% |
| 20 | C H Robinson Worldwide In | COM NEW | $37,525,841 | 225,964 | 2.84% | 1.82% |
| 21 | Quanta Svcs Inc | COM | $34,830,674 | 63,442 | 2.64% | 1.69% |
| 22 | Synopsys Inc | COM | $30,458,387 | 76,822 | 2.31% | 1.48% |
| 23 | Gildan Activewear Inc | COM | $22,065,448 | 396,504 | 1.67% | 1.07% |
| 24 | Guidewire Software Inc | COM | $8,256,908 | 55,208 | 0.63% | 0.4% |
| 25 | Palo Alto Networks Inc | COM | $8,098,725 | 50,516 | 0.61% | 0.39% |
Top 25 of 36 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| High net worth individuals | 44 | $370M | 17.9% |
| Investment companies | 2 | $54.5M | 2.64% |
| Pooled investment vehicles (non-investment companies) | 3 | $243M | 11.8% |
| Pension and profit sharing plans | 20 | $1.0B | 50.6% |
| Charitable organizations | 4 | $79.8M | 3.87% |
| Other investment advisers | 1 | $75.3M | 3.65% |
| Corporations and other businesses | 7 | $179M | 8.7% |
| Other | 2 | $17.2M | 0.83% |
Private funds (1)
Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $3.3B combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| M.D. Sass Government Agency Portable Alpha, L.P. | Hedge Fund | Delaware | $3.3B | 1 |
People (5)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Sass, Martin, Douglas | Chairman, Chief Executive Officer, Chief Investment Officer, Director, Managing Member | Mar 1972 (54y) | ≈ 37.5% – 75% via M.D. Sass Financial, Inc. | |
| Liu, Bobby | Chief Operating Officer, General Counsel, Chief Compliance Officer | Aug 2006 (20y) | Less than 5% | |
| Sass, Ari | President, Senior Portfolio Manager (Equities) | Jan 2018 (9y) | 50% – 75% | |
| Friedman, Sam, Harris | Chief Financial Officer | Oct 2018 (8y) | Less than 5% | |
| Robert Stuart Littell | Registered representative | Jun 2004 (22y) |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| M.D. Sass Financial, Inc. | Member | Nov 2023 | A | 50% – 75% |
Estimated effective ownership (look-through of filed bands):
- Sass, Martin, Douglas: 75% – 100% of M.D. Sass Financial, Inc. × 50% – 75% direct ≈ 37.5% – 75% of the firm
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (1, $3.3B gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| M.D. Sass Government Agency Portable Alpha, L.P. | Hedge Fund | $3.3B | $5.0M | 1 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/31/2026 | 1.66 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Performance-based fees
Services
- • Portfolio management for individuals/small businesses
- • Portfolio management for investment companies
- • Portfolio management for pooled investment vehicles
- • Portfolio management for businesses/institutional clients
Custody
Reported custodians
- J.P. Morgan $605M (18% of AUM) Jan 2024
- State Street $455M (22% of AUM) Mar 2026
- Northern Trust $437M (21% of AUM) Mar 2026
- Merrill Lynch $189M (6% of AUM) Jan 2024
- BNY Mellon $138M (3% of AUM) Jan 2025
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports having custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 31, 2026.
View current Form ADV (SEC/IAPD) ↗