Beck Mack & Oliver 13F (2026 Q1): A Bet on Private Capital

An old-line firm tilted toward the new finance

Beck Mack & Oliver is one of the more venerable names in American money management, a New York firm with roots stretching back to the 1930s. But its 2026Q1 13F reveals a portfolio leaning into a distinctly modern theme: the rise of the alternative-asset managers. The roughly $4.85 billion book lists about 195 positions, yet the top is concentrated and unmistakably tilted toward financials, led by the giants of private capital.

The largest holding is Apollo Global Management at 6.35% of reported value, with Blackstone close behind at 5.36%. Add Charles Schwab and insurance broker Arthur J. Gallagher, and a clear picture emerges: a meaningful bet on the businesses that gather, manage, and intermediate capital. Rounding out the top names are Alphabet, Microsoft, Ferguson, Somnigroup, and RadNet, a mix that pairs the financial tilt with quality technology and a few idiosyncratic situations.

A bet on the alternative-asset boom

The Apollo-and-Blackstone pairing at the top of the book is the most telling feature. Alternative-asset managers have been one of the great growth stories in finance, gathering enormous pools of capital in private equity, credit, and real assets, and earning fees on ever-larger asset bases. Owning both leaders in size, alongside Schwab and Gallagher, expresses a thesis that the businesses sitting at the center of modern capital formation will keep compounding. It is a quality-financials tilt with a forward-looking flavor, less about traditional banks than about the fee-earning engines of private markets.

The quarter's activity

Reported value eased about 11.9% on the quarter to $4.85 billion, after a steady climb from roughly $4.8 billion to $5.5 billion over the prior two years; the dip reflects a single quarter of softer marks and modest trimming rather than an anomaly. The position-level moves were measured: a 21% increase in Arthur J. Gallagher, a new position in Sunbelt Rentals at 4.5% of the book, a 5% add to Blackstone, and a small trim to Alphabet, with Apollo, Microsoft, Ferguson, and Schwab held essentially flat. The pattern, leaning further into insurance broking and adding an industrial-rental name while holding the financial core steady, suggests incremental fine-tuning rather than a change in direction.

How to read a top-heavy multi-name book

Beck Mack's filing carries a long tail of nearly 200 names, but the signal sits at the top, where the alternative-asset-manager weighting expresses the firm's clearest conviction. As with any broad book anchored by a concentrated core, the productive read is to focus on the largest positions and the direction of the marginal moves rather than the full roster. This quarter, that reading points to a steady, financials-tilted portfolio leaning gently further into private-market and insurance franchises. You can explore the full holdings, the position changes, and the longer history on the Beck Mack & Oliver filer page.