Buyback Radar
Company reports

Amgen

AMGN

Amgen has retired 48.4% of its shares since 2008, from 1,047,000,000 to 540,632,005.

48.4%retired since 2008
4.0%last 5 years
-0.4%last 12 months
541Mshares today
Shares outstanding, 2008 to todaysplit adjusted, from SEC filings
a quarter gone 20111B shares, 2008541M2010201520202025
2008, 1,047,000,0002026-07-30, 540,632,005
A share bought in 2008
1.9× more of Amgen today, without buying another share. It was one of 1,047,000,000 shares then. It is one of 540,632,005 now.
Every filing we read18 fiscal years, split adjusted
Fiscal yearDateShares outstandingFiling
20082008-12-311,047,000,00010-K
20092010-02-12979,301,62710-K
20102011-02-11932,452,90210-K
20112012-02-10791,432,13410-K
20122013-02-19748,430,01810-K
20132014-02-13755,007,29010-K
20142015-02-12758,861,30610-K
20152016-02-09752,091,03810-K
20162017-02-09736,452,79110-K
20172018-02-09720,562,24610-K
20182019-02-07622,278,03410-K
20192020-02-06589,806,81910-K
20202021-02-03577,566,38310-K
20212022-02-11557,029,37010-K
20222023-02-06533,976,23810-K
20232024-02-09535,918,90110-K
20242025-02-11537,204,94310-K
20252026-02-10539,067,67510-K

Source: all 10-K filings of Amgen on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.

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Amgen buybacks, answered

Is Amgen buying back its stock?

Only enough to stand still. The share count is roughly flat over the last twelve months, at 540,632,005 as of July 30, 2026. Over five years the share count is down 4.0%.

How many shares has Amgen bought back?

Net of every new share it issued, Amgen has 506.4 million fewer shares than at its 2008 peak. That is 48.4% of the company. Since fiscal 2009 alone it bought back about 590.9 million shares, while the count fell by 438.7 million. The difference went to employees and other new shares.

How many shares does Amgen have outstanding?

540,632,005 shares, as of July 30, 2026, from the cover page of its latest 10-Q. At the 2008 peak it had 1,047,000,000.

What do Amgen's buybacks mean for a shareholder?

Each share is a bigger slice of the company. Someone who held Amgen stock in 2008 owns 1.9 times as much of the business today without buying another share. Whether that was a good use of cash depends on the price paid.

How does Amgen compare with other cannibal stocks?

Amgen ranks No. 65 of 251 companies on Buyback Radar by share of the company retired since its peak. Close to it on the list: Lockheed Martin (49.4%), Herbalife (49.2%), Flexsteel (48.3%), Toll Brothers (48.0%).

Every answer is computed from Amgen's own SEC filings and rebuilt every Monday. Latest count: 10-Q on EDGAR.

Superinvestors who own it

David KatzMatrix Asset Advisors83,919 shares, $35.4M, Q3 2026

From the latest 13F filings. All superinvestors.

Insider buying, last 12 months

No open-market purchases reported in the last 12 months.

The story

The numbers say what happened. The story says whether it can continue. We cover companies like Amgen in depth on Cannibal Stocks.

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