Osterweis Capital Management: Significant Portfolio Shifts in Q2 2026
Osterweis Capital Management's portfolio saw notable changes during the second quarter of 2026, with substantial additions to major technology and healthcare stocks alongside significant reductions in other sectors.
As reported by Osterweis Capital Management Inc, the investment firm's portfolio held a total value of $1.84 billion as of June 30, 2026.
The fund demonstrated active trading behavior this quarter, with changes observed across various sectors and individual holdings. The significant buy activity included substantial increases in positions like Apple Inc (AAPL), Boston Scientific Corp (BSX), and Gallagher Arthur J & Co (AJG). Conversely, the firm also recorded notable sell-offs, reducing stakes significantly in companies such as Keysight Technologies (KEYS) and Intercontinental Exchange Inc (ICE).
Among the most prominent purchases was a substantial increase in Apple Inc's allocation. The fund added 194,242 shares of AAPL during Q2, representing an astronomical +426.19% change from the previous quarter. This significant buying push saw AAPL's portfolio percentage jump to 3.27%, making it one of Osterweis Capital Management's top holdings for this period.
Similarly, Boston Scientific Corp (BSX) experienced a massive increase in its position within the fund during Q2. The investor added 266,757 shares, resulting in a +60.33% change from prior quarter levels and boosting its portfolio allocation to 1.43%. This substantial buying activity suggests confidence in BSX's prospects.
Other noteworthy additions included Alignement Healthcare Inc (ALHC), which saw its position grow by +74.07%, equivalent to an increase of 257,015 shares from the previous quarter. The fund also increased its stake significantly in Dutch Bros Inc (BROS) and Affirm Hldgs Inc (AFRM). These purchases reflect targeted growth within specific sectors.
On the selling side, Osterweis Capital Management notably reduced positions during Q2. Keysight Technologies (KEYS) was sold down by -77.15%, indicating a significant reduction in exposure for this quarter. Intercontinental Exchange Inc (ICE) also saw substantial reductions (-56.62%) as did Hinge Health (433313103). These exits suggest a strategic shift away from certain areas of the market.
Furthermore, while not among the largest changes in terms of percentage increase or decrease, there were other notable shifts observed by the fund. For instance, Applied Materials Inc (AMAT) experienced a significant reduction (-42.79%), and several smaller holdings also changed substantially during this period.