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Amgen is a global biotechnology company that discovers, develops, manufactures and delivers human therapeutics. Co. focuses its research and development on human therapeutics for the treatment of illness in the areas of oncology/hematology, cardiovascular disease, inflammation, bone health, nephrology and neuroscience. Co.'s principal products include ENBREL, Neulasta®, Aranesp®, Prolia®, Sensipar®/Mimpara®, XGEVA®, EPOGEN®, and NEUPOGEN®. In addition, Co. markets several other products, including KYPROLIS® (carfilzomib), Vectibix® (panitumumab), Nplate® (romiplostim), Repatha® (evolocumab), BLINCYTO® (blinatumomab), IMLYGIC® (talimogene laherparepvec) and Corlanor® (ivabradine). According to our AMGN split history records, Amgen has had 5 splits.
AMGN split history picture
Amgen (AMGN) has 5 splits in our AMGN split history database. The first split for AMGN took place on August 13, 1990. This was a 2 for 1 split, meaning for each share of AMGN owned pre-split, the shareholder now owned 2 shares. For example, a 1000 share position pre-split, became a 2000 share position following the split. AMGN's second split took place on September 11, 1991. This was a 3 for 1 split, meaning for each share of AMGN owned pre-split, the shareholder now owned 3 shares. For example, a 2000 share position pre-split, became a 6000 share position following the split. AMGN's third split took place on August 16, 1995. This was a 2 for 1 split, meaning for each share of AMGN owned pre-split, the shareholder now owned 2 shares. For example, a 6000 share position pre-split, became a 12000 share position following the split. AMGN's 4th split took place on March 01, 1999. This was a 2 for 1 split, meaning for each share of AMGN owned pre-split, the shareholder now owned 2 shares. For example, a 12000 share position pre-split, became a 24000 share position following the split. AMGN's 5th split took place on November 22, 1999. This was a 2 for 1 split, meaning for each share of AMGN owned pre-split, the shareholder now owned 2 shares. For example, a 24000 share position pre-split, became a 48000 share position following the split.

When a company such as Amgen splits its shares, the market capitalization before and after the split takes place remains stable, meaning the shareholder now owns more shares but each are valued at a lower price per share. Often, however, a lower priced stock on a per-share basis can attract a wider range of buyers. If that increased demand causes the share price to appreciate, then the total market capitalization rises post-split. This does not always happen, however, often depending on the underlying fundamentals of the business. Looking at the AMGN split history from start to finish, an original position size of 1000 shares would have turned into 48000 today. Below, we examine the compound annual growth rate — CAGR for short — of an investment into Amgen shares, starting with a $10,000 purchase of AMGN, presented on a split-history-adjusted basis factoring in the complete AMGN split history. AMGN split adjusted history picture

Growth of $10,000.00
With Dividends Reinvested

Start date: 03/26/2007
End date: 03/24/2017
Start price/share: $57.14
End price/share: $165.74
Starting shares: 175.01
Ending shares: 197.26
Dividends reinvested/share: $14.63
Total return: 226.95%
Average Annual Total Return: 12.57%
Starting investment: $10,000.00
Ending investment: $32,686.43
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested

Start date: 03/26/2007
End date: 03/24/2017
Start price/share: $57.14
End price/share: $165.74
Dividends collected/share: $14.63
Total return: 215.66%
Average Annual Total Return: 12.18%
Starting investment: $10,000.00
Ending investment: $31,571.20
Years: 10.00
Date Ratio
08/13/19902 for 1
09/11/19913 for 1
08/16/19952 for 1
03/01/19992 for 1
11/22/19992 for 1
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