Dudley & Shanley Inc.: Recent Investment Activity Analysis (Q2)

As of June 30, 2026, Dudley & Shanley Inc.'s portfolio allocation has shifted slightly compared to the previous quarter. The total value remains substantial at $632,426,025, but there have been observable changes in specific holdings and sectors.

The investor's activity this quarter was characterized by a mix of buying and selling activities across various industries. Significant purchases were noted in the Healthcare sector with acquisitions like Pfizer Inc. (PFE) which entered the portfolio entirely new, and substantial increases in positions held previously such as Waters Corp. (WAT), Fiserv Inc. (FI), and others. The Technology sector, however, saw heavy selling activity with the divestment of significant portions of holdings like Analog Devices (ADI) and Amphenol Corp. (APH).

In terms of specific actions, Pfizer Inc. was acquired entirely new this quarter with a 100% increase in shares held and no prior position existing. Similarly, Waters Corp. entered the portfolio as a significant purchase after not being listed previously. The Technology sector also saw notable additions or increases: Badger Meter Inc. (BMI) experienced a 48% reduction in shares but remains a holding, while Fiserv Inc. (FI), Donaldson Co., Inc. (DCI), and Analog Devices (ADI) all showed significant decreases in their allocations.

Looking at the most active purchases, Federal Signal Corp saw a massive 169.86% increase in its position with over 106k new shares acquired. This was followed by substantial buying activity in other Industrials: Fastenal Co. increased its stake dramatically by 291k shares (160.66%), and Xylem Inc. added over 100k new shares, boosting its allocation significantly. Healthcare also showed strong buying interest with Danaher Corp. adding a healthy number of shares and Waters Corp. entering the picture. Agilent Technologies Inc. (A) also saw an increase, albeit smaller in percentage terms but still noteworthy at 25.91% growth.

Conversely, the investor divested substantial portions of its Technology holdings during this quarter. Analog Devices (ADI), a previously significant holding at over $40 million value ($67k shares sold or reduced by nearly -28%), was the most notable sale. Amphenol Corp. (APH) also saw a large reduction in its position, with 11.3k shares sold (-4.6%). Other Technology holdings like Fiserv Inc. (FI), Donaldson Co., Inc. (DCI), and Badger Meter Inc. (BMI) were reduced significantly or partially exited from the portfolio view.

In summary, Dudley & Shanley's Q2 filing reveals a strategic shift towards bolstering its positions in Healthcare and Industrials sectors through significant purchases, while simultaneously reducing its Technology allocation considerably with large sales of major holdings like Analog Devices and Amphenol Corp. These changes reflect the investor's dynamic approach to portfolio management.