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Beck Mack & Oliver LLC

CIK:0000010742
Asset Manager
$6B AUM
186 holdings
New York, NY, United States
Founded:1931
25 employees
Latest filing:Jun 30, 2025

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.

Top Buys
M
MSFTMICROSOFT CORP
+$61.5M
F
FERGFERGUSON ENTERPRISES INC.
+$49.8M
A
AHT.LASHTEAD GROUP PLC
+$45.4M
R
RDNTRADNET INC COM
+$22.6M
S
SCHWSCHWAB CHARLES CP NEW COM
+$22.0M
Top Sells
A
AJGGALLAGHER ARTHUR J
-$45.7M
C
CACCCREDIT ACCEP CORP MICH COM
-$12.2M
F
FTREFORTREA HOLDINGS INC.
-$12.2M
E
ESGRENSTAR GROUP LTD
-$11.3M
M
MTDRMATADOR RES CO COM
-$10.2M

Top Holdings

A
APOAPOLLO GLOBAL MGMT INC
+7.6%$397.8M
B
BXBLACKSTONE INC.
+6.3%$331.5M
M
MSFTMICROSOFT CORP
+6.1%$321.8M
A
AHT.LASHTEAD GROUP PLC
+4.3%$224.9M
A
AJGGALLAGHER ARTHUR J
+4.3%$224.5M

Equity Positions (182)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
A
APO
APOLLO GLOBAL MGMT INC7.59%$397.8M2,803,762$73.22$141.87+$4.4M
B
BX
BLACKSTONE INC.6.33%$331.5M2,216,245$48.32$149.58+$15.8M
M
MSFT
MICROSOFT CORP6.14%$321.8M646,907$57.78$497.41+$61.5M
A
AHT.L
ASHTEAD GROUP PLC4.29%$224.9M3,512,867$3683.20$4669.00+$45.4M
A
AJG
GALLAGHER ARTHUR J4.29%$224.5M701,443$155.06$320.12-$45.7M

Industry Allocation

INVESTMENT ADVICE
+16.9%
SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+9.0%
WHOLESALE-HARDWARE & PLUMBING & HEATING EQUIPMENT & SUPPLIES
+7.2%
SERVICES-MEDICAL LABORATORIES
+6.8%
SERVICES-PREPACKAGED SOFTWARE
+6.2%