Amkor Technology, Inc. logo
AMKRAmkor Technology, Inc.

Shares Outstanding: 249.57M

The shares outstanding is 249.57M. It is above its 12-month average by 0.48% (248.37M).

Shares Outstanding

AMKR Shares Outstanding

249.57M

Reported quarterly weighted average share count; no daily interpolation.

+1.64% 5Y
AMKR Shares Outstanding

AMKR Average Shares Outstanding Chart

AMKR Shares Outstanding

AMKR Current vs Average Shares Outstanding Chart

AMKR Shares Outstanding Metrics

SHARES OUTSTANDING

249.57M

SHARES OUTSTANDING AVG TTM

248.37M

SHARES OUTSTANDING AVG 3Y

247.67M

SHARES OUTSTANDING AVG 5Y

247.08M

SHARES OUTSTANDING AVG 10Y

243.56M

SHARES OUTSTANDING AVG 15Y

242.06M

SHARES OUTSTANDING AVG 20Y

242.06M

CURRENT VS TTM AVG

+0.48%

CURRENT VS 3Y AVG

+0.77%

CURRENT VS 5Y AVG

+1.01%

CURRENT VS 10Y AVG

+2.47%

CURRENT VS 15Y AVG

+3.10%

CURRENT VS 20Y AVG

+3.10%

Share Structure

Shares Outstanding

247.16M

Float Shares

N/A

Stock Price

$82.76

Market Cap

$21.3B

Quarterly Shares Outstanding History

PeriodWeighted Average SharesQoQ Change
Q1 2026249.57M+0.51%
Q4 2025248.30M+0.00%
Q3 2025248.30M+0.18%
Q2 2025247.84M+0.00%
Q1 2025247.84M-0.03%
Q4 2024247.92M+0.00%
Q3 2024247.92M+0.03%
Q2 2024247.86M+0.10%
Q1 2024247.61M+0.15%
Q4 2023247.24M+0.05%
Q3 2023247.13M+0.07%
Q2 2023246.96M-0.05%
Q1 2023247.09M+0.16%
Q4 2022246.69M+0.24%
Q3 2022246.09M+0.10%
Q2 2022245.85M-0.06%
Q1 2022246.00M+0.04%
Q4 2021245.89M-0.02%
Q3 2021245.94M+0.16%
Q2 2021245.55M+0.17%
Q1 2021245.13M+0.73%
Q4 2020243.36M+0.31%
Q3 2020242.59M+0.49%
Q2 2020241.41M+0.03%
Q1 2020241.33M+0.08%
Q4 2019241.15M+0.50%
Q3 2019239.94M+0.18%
Q2 2019239.51M+0.04%
Q1 2019239.41M-0.08%
Q4 2018239.60M-0.07%
Q3 2018239.77M-0.02%
Q2 2018239.80M-0.01%
Q1 2018239.82M+0.00%
Q4 2017239.81M+0.07%
Q3 2017239.64M-0.02%
Q2 2017239.68M+0.42%
Q1 2017238.69M-0.21%
Q4 2016239.19M+0.42%
Q3 2016238.19M+0.32%
Q2 2016237.43M+0.17%
Q1 2016237.03M+0.03%
Q4 2015236.96M-0.01%
Q3 2015236.97M-0.15%
Q2 2015237.32M-0.04%
Q1 2015237.42M+0.21%
Q4 2014236.94M-0.24%
Q3 2014237.51M+0.27%
Q2 2014236.87M+0.58%
Q1 2014235.50M+0.08%
Q4 2013235.30M+0.07%
Q3 2013235.14M+0.01%
Q2 2013235.11M+0.01%
Q1 2013235.09M-0.03%
Q4 2012235.15M-0.81%
Q3 2012237.06M-2.79%
Q2 2012243.87M-2.72%
Q1 2012250.69M+0.00%
Q4 2011250.69M-9.85%
Q3 2011278.07M-0.69%
Q2 2011280.01M+0.87%
Q1 2011277.58M+0.00%
Q4 2010277.58M-1.74%
Q3 2010282.50M-0.05%
Q2 2010282.64M+0.05%
Q1 2010282.51M+0.00%
Q4 2009282.51M+0.05%
Q3 2009282.36M+6.21%
Q2 2009265.85M+45.24%
Q1 2009183.03M+0.00%
Q4 2008183.03M-12.84%
Q3 2008209.99M-0.07%
Q2 2008210.14M+0.35%
Q1 2008209.40M+0.00%
Q4 2007209.40M-0.22%
Q3 2007209.87M+0.00%
Q2 2007209.87M+1.61%
Q1 2007206.54M+0.00%
Q4 2006206.54M+1.01%
Q3 2006204.48M+3.87%
Q2 2006196.87M+3.20%
Q1 2006190.76M-0.13%
Q4 2005191.01M+8.09%
Q3 2005176.72M+0.20%
Q2 2005176.37M+0.37%
Q1 2005175.72M+0.00%
Q4 2004175.72M+0.00%
Q3 2004175.72M-0.09%
Q2 2004175.87M-2.40%
Q1 2004180.20M+0.00%
Q4 2003180.20M+5.11%
Q3 2003171.44M+3.37%
Q2 2003165.85M+0.42%
Q1 2003165.16M+0.00%
Q4 2002165.16M+0.41%
Q3 2002164.49M+0.13%
Q2 2002164.28M-

Relationship: Market Cap = Shares Outstanding × Stock Price

Key concepts:

  • Float shares: Shares available for public trading
  • Dilution: When new shares are issued, existing shareholders own less
  • Buybacks: Reduce share count, increasing EPS and ownership stake
  • Stock splits: Increase share count but don't change market cap

Shares Outstanding Formula & Definition

Shares Outstanding represents the reported weighted average share count used for per-share metrics. Changes in share count affect EPS and ownership dilution.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

Shares Outstanding FAQ

What is the shares outstanding for Amkor Technology, Inc. (AMKR)?
The shares outstanding for AMKR stock is 249.57M.
What is the TTM average shares outstanding for Amkor Technology, Inc. (AMKR)?
The TTM average shares outstanding for AMKR stock is 248.37M.
What is the 3Y average shares outstanding for Amkor Technology, Inc. (AMKR)?
The 3Y average shares outstanding for AMKR stock is 247.67M.
What is the 5Y average shares outstanding for Amkor Technology, Inc. (AMKR)?
The 5Y average shares outstanding for AMKR stock is 247.08M.
What is the 10Y average shares outstanding for Amkor Technology, Inc. (AMKR)?
The 10Y average shares outstanding for AMKR stock is 243.56M.
What is the 15Y average shares outstanding for Amkor Technology, Inc. (AMKR)?
The 15Y average shares outstanding for AMKR stock is 242.06M.
What is the 20Y average shares outstanding for Amkor Technology, Inc. (AMKR)?
The 20Y average shares outstanding for AMKR stock is 242.06M.

AMKR Shares Outstanding History

DATESHARES OUTSTANDING
2026-03-31249.57M
2025-12-31248.30M
2025-09-30248.30M
2025-06-30247.84M
2025-03-31247.84M
2024-12-31247.92M
2024-09-30247.92M
2024-06-30247.86M
2024-03-31247.61M
2023-12-31247.24M
2023-09-30247.13M
2023-06-30246.96M
2023-03-31247.09M
2022-12-31246.69M
2022-09-30246.09M
2022-06-30245.85M
2022-03-31246.00M
2021-12-31245.89M
2021-09-30245.94M
2021-06-30245.55M
2021-03-31245.13M
2020-12-31243.36M
2020-09-30242.59M
2020-06-30241.41M
2020-03-31241.33M
2019-12-31241.15M
2019-09-30239.94M
2019-06-30239.51M
2019-03-31239.41M
2018-12-31239.60M
2018-09-30239.77M
2018-06-30239.80M
2018-03-31239.82M
2017-12-31239.81M
2017-09-30239.64M
2017-06-30239.68M
2017-03-31238.69M
2016-12-31239.19M
2016-09-30238.19M
2016-06-30237.43M
2016-03-31237.03M
2015-12-31236.96M
2015-09-30236.97M
2015-06-30237.32M
2015-03-31237.42M
2014-12-31236.94M
2014-09-30237.51M
2014-06-30236.87M
2014-03-31235.50M
2013-12-31235.30M
2013-09-30235.14M
2013-06-30235.11M
2013-03-31235.09M
2012-12-31235.15M
2012-09-30237.06M
2012-06-30243.87M
2012-03-31250.69M
2011-12-31250.69M
2011-09-30278.07M
2011-06-30280.01M
2011-03-31277.58M
2010-12-31277.58M
2010-09-30282.50M
2010-06-30282.64M
2010-03-31282.51M
2009-12-31282.51M
2009-09-30282.36M
2009-06-30265.85M
2009-03-31183.03M
2008-12-31183.03M
2008-09-30209.99M
2008-06-30210.14M
2008-03-31209.40M
2007-12-31209.40M
2007-09-30209.87M
2007-06-30209.87M
2007-03-31206.54M
2006-12-31206.54M
2006-09-30204.48M
2006-06-30196.87M
2006-03-31190.76M
2005-12-31191.01M
2005-09-30176.72M
2005-06-30176.37M
2005-03-31175.72M
2004-12-31175.72M
2004-09-30175.72M
2004-06-30175.87M
2004-03-31180.20M
2003-12-31180.20M
2003-09-30171.44M
2003-06-30165.85M
2003-03-31165.16M
2002-12-31165.16M
2002-09-30164.49M
2002-06-30164.28M

About Amkor Technology, Inc.

Amkor Technology, Inc. operates internationally, delivering external semiconductor packaging and testing solutions across North America, Japan, Europe, the Middle East, Africa, and the broader Asia Pacific region. Their comprehensive, end-to-end offerings encompass a range of processes, including semiconductor wafer bumping, probing, back-grinding, package conceptualization, final packaging, testing, and direct shipment services. The company's product portfolio features flip-chip scale packages, critical for devices like smartphones, tablets, and other portable consumer electronics. They also provide flip-chip stacked chip-scale packages, designed for layering memory atop digital basebands and as application processors in mobile units. Flip-chip ball grid array packages cater to diverse applications in networking, data storage, computing, and general consumer products. Wafer-level CSP packages find use in power management systems, transceivers, sensors, wireless charging technologies, codecs, radar systems, and specialized silicon components. Their wafer-level fan-out packages are integral for integrated circuits, alongside silicon wafer integrated fan-out technology, which offers a thinner alternative to traditional laminate substrates. Additionally, Amkor supplies lead frame packages, commonly employed in electronic devices requiring low to medium pin count analog and mixed-signal functionalities. Substrate-based wirebond packages facilitate the connection of a die to its substrate. Micro-electro-mechanical systems (MEMS) packages involve miniature mechanical and electromechanical components. Furthermore, their advanced system-in-package (SiP) modules are vital for a broad array of applications, including radio frequency and front-end modules, basebands, connectivity solutions, fingerprint sensors, display and touchscreen drivers, various sensors and MEMS, and NAND memory and solid-state drives. The company primarily serves a clientele comprising integrated device manufacturers, fabless semiconductor enterprises, original equipment manufacturers, and contract foundries. Established in 1968, Amkor Technology, Inc. maintains its corporate headquarters in Tempe, Arizona.

Tempe, AZ
28,300 employees
Technology / Semiconductors
Sector
Technology
Industry
Semiconductors
CEO
Kevin K. Engel