Diamond Hill Capital Management 13F, Q1 2026
Diamond Hill · quarter ending 31 March 2026 · filed 7 May 2026 · SEC CIK 1217541
Common stock only: shares the fund reported owning at the quarter end, valued as filed.
Largest positions, Q1 2026
The 25 largest of 187 positions. Weights are against the whole filed book. Changes are in shares held, against the Q4 2025 filing.
| Company | Ticker | Value | % of book | vs Q4 2025 |
|---|---|---|---|---|
| American International Group, | AIG | $645.39M | 4.0% | -21% shares |
| Berkshire Hathaway, Inc. (Cl B | BRK/B | $609.75M | 3.8% | -17% shares |
| Abbott Laboratories | ABT | $552.25M | 3.5% | +4% shares |
| Aon PLC (Cl A) | $480.26M | 3.0% | -7% shares | |
| Colgate-Palmolive Co. | CL | $460.80M | 2.9% | -25% shares |
| Diamondback Energy, Inc. | FANG | $397.25M | 2.5% | -21% shares |
| Texas Instruments, Inc. | TXN | $397.21M | 2.5% | -37% shares |
| ConocoPhillips | COP | $384.88M | 2.4% | -30% shares |
| Microsoft Corp. | MSFT | $378.95M | 2.4% | +400% shares |
| Capital One Financial Corp. | COF | $368.45M | 2.3% | -19% shares |
| Waste Management, Inc. | WM | $362.86M | 2.3% | -32% shares |
| Zoetis, Inc. (Cl A) | ZTS | $346.06M | 2.2% | -7% shares |
| Salesforce, Inc. | CRM | $335.65M | 2.1% | +18% shares |
| SBA Communications Corp. (Cl A | SBAC | $332.94M | 2.1% | -5% shares |
| Walt Disney Co. | DIS | $306.89M | 1.9% | +5% shares |
| Extra Space Storage, Inc. | EXR | $268.58M | 1.7% | -14% shares |
| Equitable Holdings, Inc. | EQH | $266.90M | 1.7% | +68% shares |
| Adobe, Inc. | ADBE | $260.54M | 1.6% | +9% shares |
| Bank of America Corp. | BAC | $251.14M | 1.6% | -29% shares |
| Union Pacific Corp. | UNP | $250.82M | 1.6% | -33% shares |
| Sysco Corp. | SYY | $248.37M | 1.6% | -39% shares |
| Cooper Cos., Inc. | COO | $242.98M | 1.5% | +3% shares |
| Regal Rexnord Corp. | RRX | $242.02M | 1.5% | -45% shares |
| Kimberly-Clark Corp. | KMB | $226.26M | 1.4% | new |
| Amazon.com, Inc. | AMZN | $218.02M | 1.4% | -5% shares |
What changed since Q4 2025
Against the Q4 2025 filing, Diamond Hill Capital Management opened 13 new positions, added to 45, trimmed 110, left 19 unchanged and exited 16. Every position is compared, matched on its CUSIP; a change of 2% or less in shares counts as unchanged.
Other quarters
Source: SEC Form 13F-HR, accession 0001217541-26-000005, filed by Diamond Hill Capital Management, LLC (Investment Advisor). Values are as filed and cover US-listed positions only; a 13F does not show short positions or holdings outside the US. A 13F may be filed up to 45 days after the quarter ends, so the fund may have traded since. Educational information, not financial advice.