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Stock split history for MDU Resources Group (MDU)

MDU Resources Group stock (symbol: MDU) underwent a total of 8 stock splits.

The most recent stock split occurred on November 1, 2024.

One MDU share bought prior to February 1, 1978 would equal 53.2552 MDU shares today.

The same share count applies to one share bought at IPO on November 5, 1987.

Stock splits history (since IPO on November 5, 1987)

Cumulative multiple is the running product of split factors from the chronologically oldest row through each date. Rows are listed newest-first, so the cumulative column reads forward in time from the bottom of the table toward the top.

November 1, 2024

Type
Stock split
Split
361:200
Multiple
x1.805
Cumulative multiple
x53.2552
Pre-split price
$28.83
Post-split price
$15.72

June 1, 2023

Type
Stock split
Split
1457:1000
Multiple
x1.457
Cumulative multiple
x29.5043
Pre-split price
$29.14
Post-split price
$20.45

July 27, 2006

Type
Stock split
Split
3:2
Multiple
x1.5
Cumulative multiple
x20.25
Pre-split price
$36.41
Post-split price
$24.38

October 30, 2003

Type
Stock split
Split
3:2
Multiple
x1.5
Cumulative multiple
x13.5
Pre-split price
$34.26
Post-split price
$23.20

July 14, 1998

Type
Stock split
Split
3:2
Multiple
x1.5
Cumulative multiple
x9
Pre-split price
$34.88
Post-split price
$23.31

October 16, 1995

Type
Stock split
Split
3:2
Multiple
x1.5
Cumulative multiple
x6
Pre-split price
$34.35
Post-split price
$22.81

July 16, 1986

Type
Stock split
Split
2:1
Multiple
x2
Cumulative multiple
x4
Pre-split price
Post-split price
$18.37

February 1, 1978

Type
Stock split
Split
2:1
Multiple
x2
Cumulative multiple
x2
Pre-split price
Post-split price
$18.37

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.

Stock splits for companies in the Industrials sector

8 peers sorted by market cap

Compare split histories across large names in the same sector. Each ticker links to its own split table; the list excludes ETFs and funds and follows our daily company snapshot.

Frequently asked questions

How many times has MDU Resources Group (MDU) split its stock?

Our data shows 8 stock splits for MDU Resources Group (MDU). See the table on this page for dates and ratios.

What is a stock split?

A stock split increases the number of shares outstanding while proportionally lowering the share price, so market capitalization is unchanged. Chart and return tools often use split-adjusted prices. The split table on this page refreshes daily from our corporate-actions data.

What is the cumulative split multiple for MDU?

Multiplying each split factor in chronological order gives a cumulative multiple of about 53.2552 from the oldest split through the most recent one in our table.

Does a stock split change the value of my MDU investment?

A split does not change the total market value of your holding by itself; you own more shares at a lower per-share price. Dividends per share and some per-share metrics are often adjusted for splits.