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Stock Splits for Pentair (PNR)

Pentair (PNR) has undergone 11 stock splits. See the full history with split ratios, dates, and price data.

IPO date

May 3, 1973

Total splits

11

Cumulative multiple

34.806

Split likelihood

Elevated

72/100

Stock splits history for Pentair (PNR) from 1975 to 2018

Cumulative multiple is the running product of split factors from the oldest row through each date.

  • May 1, 2018x34.8057
  • June 9, 2004x23.3752
  • February 20, 1996x11.6876
  • June 14, 1993x5.8438
  • May 27, 1988x3.8959
  • March 17, 1986x3.5417
  • April 1, 1985x3.2197
  • November 16, 1983x2.5758
  • February 25, 1982x2.0606
  • July 24, 1978x1.6485
  • October 8, 1975x1.099

Pre-split price is the final regular-session close on a trading day strictly before the split calendar date. Post-split price is the first session open on or after that date. Both values come from unadjusted end-of-day bars for the company's primary listing.

The Type column reflects the data feed's event category (for example stock split vs stock dividend). When the feed labels a generic split but the ratio is reverse (e.g. 1:10), we show reverse stock split. Optional editorial context for a row appears next to the split ratio as an info icon (hover or keyboard focus on desktop; tap on mobile). The same text is listed under Row notes when that block is expanded.

Wondering why some rows show ratios like 51:50 or 2000:1973? Read: stock split ratios explained → How the cumulative column is computed: cumulative split multiplier explained. For ratios driven by spin-offs, see spin-offs explained. Or read the methodology for how prices and cumulative multiples are computed.

Split likelihood score for Pentair (PNR)

Computed through July 28, 2026.

Elevated
72/100
FactorDetailContribution
Absolute pricePrice $63.18 → 57% of the price band+23
Personal split thresholdPrice is 118% of the company's typical pre-split price ($53.68)+28
Split track record11 prior splits on record+20
Proximity to 52-week highPrice is 55% of the 52-week high+1

An educational, rule-based score — not a prediction of any split and not investment advice. Splits are at the sole discretion of a company's board. How it's calculated · Will a stock split?

Frequently asked questions