KEX Shares Outstanding History — Kirby Share Count Over Time

As of 5/7/2026 Kirby has 53.50 million KEX shares outstanding. Investors often track the KEX shares outstanding history to compare shareholder return trends against the change in share count over time.

This page shows KEX share count trends over time, with 65 historical shares outstanding datapoints presented, dating back to 2/26/2010.

Quick links: Shares Outstanding History Table  |  Shares Outstanding History Chart  |  About Kirby
KEX Shares Outstanding History



Below is a table of the KEX shares outstanding history going back to 2/26/2010:

Date KEX Shares Outstanding
2/26/201054.01M
5/6/201054.03M
7/30/201053.95M
11/3/201053.52M
2/23/201153.67M
5/3/201153.67M
8/2/201155.65M
11/2/201155.67M
2/22/201255.85M
5/2/201255.87M
8/3/201255.87M
11/2/201255.90M
2/22/201356.72M
5/3/201356.75M
8/2/201356.77M
10/31/201356.82M
2/21/201456.91M
5/6/201456.98M
8/5/201457.06M
11/4/201457.06M
2/20/201555.70M
5/6/201555.79M
8/6/201554.78M
11/4/201554.01M
2/19/201653.81M
5/4/201653.86M
8/5/201653.86M
11/2/201653.85M
2/22/201753.96M
5/5/201754.01M
8/4/201754.01M
11/7/201759.70M
2/23/201859.67M
5/3/201859.70M
8/2/201859.87M
11/2/201859.87M
2/22/201959.88M
5/8/201959.90M
8/1/201959.90M
11/6/201959.95M
2/20/202059.98M
5/7/202060.04M
8/5/202060.04M
11/6/202060.04M
2/19/202160.09M
5/6/202160.10M
8/4/202160.11M
11/5/202160.11M
2/17/202260.20M
5/6/202260.30M
8/5/202259.90M
11/3/202259.90M
2/17/202360.02M
5/5/202360.00M
11/3/202359.10M
2/16/202458.52M
5/3/202458.30M
8/8/202457.90M
11/8/202457.40M
2/17/202557.13M
5/9/202556.10M
8/8/202555.80M
11/7/202554.20M
2/13/202653.65M
5/7/202653.50M

Also see: KEX Market Cap History
KEX YTD Return
KEX Historical Shares Outstanding:
-0.06% CAGR
KEX Historical Shares Outstanding: +-0.06% CAGR

Mouse over chart for data details
2/26/2010 ...5/7/2026
Kirby Corporation is a domestic tank barge operator. Co. transports bulk liquid products throughout the Mississippi River System, on the Gulf Intracoastal Waterway, and coastwise along all three U.S. coasts. Co., through its marine transportation segment (KMT), transports petrochemicals, black oil, refined petroleum products, and agricultural chemicals by tank barge. It also participates in the transportation of dry-bulk commodities in the U.S. coastwise trade. We show 65 historical shares outstanding datapoints in our coverage of KEX's shares outstanding history.

Understanding the changing numbers of KEX shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like KEX versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching KEX by allowing them to research KEX shares outstanding history as well as any other stock in our coverage universe.
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Video: Shares Outstanding Importance
Kirby (KEX) is categorized under the Industrials sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:

KEYS Shares Outstanding History
KFRC Shares Outstanding History
KFY Shares Outstanding History
KMT Shares Outstanding History
KNL Shares Outstanding History
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KNX Shares Outstanding History
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