Biogen Inc (BIIB) Stock Split History

Biogen Inc has split its stock 2 times since its initial public offering (IPO). The first stock split occurred on December 21, 1999 with the ratio of 2-for-1, meaning that for 1 share of BIIB owned pre-split, shareholders then owned 2 shares. The most recent stock split took place on January 18, 2001 on a 3-for-1 basis.

These actions have increased BIIB stock's liquidity and made it more appealing to a larger group of investors. However, it's important to remember that a stock split only change the number of shares and the price per share with no impact on Biogen Inc's total market capitalization.

For more detailed information of Biogen Inc's stock splits, view the table below:

BIIB stock split list

Date	Split Ratio
2001-01-18	3 - for - 1
1999-12-21	2 - for - 1

Will Biogen Inc Stock Split in 2024?

The answer will depend on the decisions of the company's managers and market volatility. Biogen Inc has not made an official announcement regarding whether it will enact a stock split or reverse stock split, but it has a history of doing so when BIIB stock prices become too high or too low for retail investors. Therefore, the ultimate decisions will certainly be made by Biogen Inc's board of directors. Typically, no action is taken until its price per share reaches a specific threshold.

Stock Splits of Industry Leaders

Ticker Symbol	Latest Split Date	Split Ratio
LLY	1997-10-16	2 - for - 1
JNJ	2001-06-13	2 - for - 1
MRK	1999-02-17	2 - for - 1
AZN	2015-07-27	2 - for - 1
NVS	2000-05-11	2 - for - 1
PFE	1999-07-01	3 - for - 1
AMGN	1999-11-22	2 - for - 1
BMY	1999-03-01	2 - for - 1
GSK	2022-07-22	4 - for - 5
GILD	2013-01-28	2 - for - 1
BIIB	2001-01-18	3 - for - 1
GRFS	2016-01-04	2 - for - 1
AMRN	2008-01-18	1 - for - 10
SCLX	2010-05-07	1 - for - 10