Beck Mack & Oliver LLC
Beck, Mack & Oliver LLC is an independent, partner-owned investment management firm founded in 1931 and headquartered in New York, NY. The firm manages approximately $5.8 billion in assets, serving families, endowments, and family offices. It offers separately managed accounts, equity, fixed income, cash management, and mutual fund products. The firm employs fewer than 25 people and is known for providing a highly personalized, collaborative client experience.
Investment Strategy
Beck, Mack & Oliver employs a concentrated portfolio approach, typically investing in 20-25 businesses that generate economic returns well above their cost of capital, are run by capable, well-incentivized management teams, and trade at reasonable prices. The strategy emphasizes intensive fundamental research, a disciplined focus on high-quality businesses, and a long-term orientation. The firm also manages mutual funds, such as the BM+O Partners Fund, prioritizing long-term capital appreciation while being attentive to capital preservation.
Latest 13F Filing Activity
Beck Mack & Oliver LLC filed their most recent 13F report on Jun 30, 2025 disclosing 182 equity positions with a total 13F market value of $5B. The fund increased holdings in Microsoft Corp., Ferguson Enterprises Inc., Ashtead Group PLC among other positions. Beck Mack & Oliver LLC reduced exposure to Gallagher Arthur J, Credit Accep Corp. Mich Com, Fortrea Holdings Inc. among others.
Top Holdings
Equity Positions (182)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
A APO | APOLLO GLOBAL MGMT INC | 7.59% | $397.8M | 2,803,762 | $73.22 | $141.87 | +$4.4M |
B BX | BLACKSTONE INC. | 6.33% | $331.5M | 2,216,245 | $48.32 | $149.58 | +$15.8M |
M MSFT | MICROSOFT CORP | 6.14% | $321.8M | 646,907 | $57.78 | $497.41 | +$61.5M |
A AHT.L | ASHTEAD GROUP PLC | 4.29% | $224.9M | 3,512,867 | $3683.20 | $4669.00 | +$45.4M |
A AJG | GALLAGHER ARTHUR J | 4.29% | $224.5M | 701,443 | $155.06 | $320.12 | -$45.7M |
Industry Allocation
Investment Team (5)
| Name | Role | Location | |
|---|---|---|---|
 | Partner | Charlotte, NC , United States | |
 | Partner | New York, NY , United States | |
L Lyman Delano | Partner | Greenwich, CT , United States | |
 | Partner | New York, NY , United States | |
 | Research Analyst | New York, NY , United States |