BlackRock, Inc. filed Amendment No. 13 to its Schedule 13G with the SEC on October 27, 2026, disclosing beneficial ownership of 10,988,488 shares of common stock in Pentair plc as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: BlackRock reported 10,988,488 shares of Pentair plc common stock, representing 6.9% of the class.
  • Sole voting power: BlackRock disclosed sole voting power over 10,464,418 shares.
  • Sole dispositive power: BlackRock disclosed sole dispositive power over all 10,988,488 shares.
  • Shared voting and dispositive power: Both shared voting power and shared dispositive power were reported as 0.
  • Triggering event date: The date of event requiring this filing was September 30, 2026.
  • Filing amendment: This is Amendment No. 13, indicating an ongoing series of updates to BlackRock's position in Pentair.

BlackRock's Reported Position in Pentair plc Common Stock

According to the filing, BlackRock, Inc., a Delaware-incorporated holding company with principal offices at 50 Hudson Yards, New York, NY 10001, reported aggregate beneficial ownership of 10,988,488 shares of Pentair plc common stock (CUSIP G7S00T104). The filing identified Pentair plc's principal executive offices as Regal House, 70 London Road, Twickenham, London, United Kingdom TW1 3QS. Pentair is a water treatment company whose common stock trades on NYSE under the ticker PNR.

The filing, signed by Spencer Fleming, Managing Director at BlackRock, Inc., on October 27, 2026, reflects beneficial ownership attributed to certain reporting business units of BlackRock and its subsidiaries and affiliates. As the filing explained, "this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the 'Reporting Business Units') of BlackRock, Inc. and its subsidiaries and affiliates." Securities held by other business units that are disaggregated from those reporting units are not included in the totals, according to the filing's reference to SEC Release No. 34-39538.

On the question of third-party interests, the filing stated that "various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of Pentair plc," but added that no single person's interest exceeds five percent of the total outstanding common shares. The certifications in the filing indicate that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer."

What Was Disclosed

BlackRock, Inc. reported holding 10,988,488 shares, or 6.9%, of Pentair plc common stock as of September 30, 2026, with sole voting power over 10,464,418 of those shares and sole dispositive power over the full position, in this Amendment No. 13 filing dated October 27, 2026.