TickerFacts.

Alphatec Holdings, Inc. (ATEC): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 1-for-12, first reflected in a filing dated 2016-11-09. Figures are as filed: per-share figures and share counts last reported before a split are on the old share basis, so changes and growth rates across a split are not shown. Splits are read from the filings' own restatements, so a share conversion in a merger or reorganization shows up the same way.

Restated years: each year's figure is from the latest filing that reports it. The company later restated the year ended 2014-12-31 (for example after a spin-off or a discontinued operation), while the year before it was last reported on the old basis. Changes across those points are marked n/c (not comparable), and growth rates are not computed across them.

150.26M
As of 2025-12-31
154.49M
As of 2026-06-30
+12.1%
3-year compound annual growth
+12.8%
5-year compound annual growth
+33.3%
10-year compound annual growth
2010-12-31: 89.04M2011-12-31: 89.36M2012-12-31: 96.70M2013-12-31: 96.70M2014-12-31: 99.86M2015-12-31: 8.51M2016-12-31: 9.05M2017-12-31: 19.86M2018-12-31: 43.37M2019-12-31: 61.40M2020-12-31: 82.10M2021-12-31: 99.54M2022-12-31: 106.64M2023-12-31: 139.25M2024-12-31: 144.13M2025-12-31: 150.26M150.26M
2010-12-31 Shares Outstanding (shares) 2025-12-31

Paler bars were last filed before a stock split, on the old share basis.

Period endedShares OutstandingChange YoYSource filing
2025-12-31150.26M+4.3%2026-02-24, Balance as of period end
2024-12-31144.13M+3.5%2026-02-24, Balance as of period end
2023-12-31139.25M+30.6%2025-02-26, Balance as of period end
2022-12-31106.64M+7.1%2024-02-27, Balance as of period end
2021-12-3199.54M+21.2%2023-02-28, Balance as of period end
2020-12-3182.10M+33.7%2022-03-02, Balance as of period end
2019-12-3161.40M+41.6%2021-03-05, Balance as of period end
2018-12-3143.37M+118.4%2020-03-17, Balance as of period end
2017-12-3119.86M+119.4%2019-03-29, Balance as of period end
2016-12-319.05M+6.3%2018-03-09, Balance as of period end
2015-12-318.51Mn/c2017-03-31, Balance as of period end
2014-12-3199.86Mn/c2016-03-15, Balance as of period end
2013-12-3196.70M0.0%2015-02-27, Balance as of period end
2012-12-3196.70M+8.2%2014-03-20, Balance as of period end
2011-12-3189.36M+0.4%2013-03-05, Balance as of period end
2010-12-3189.04Mn/a2012-03-05, Balance as of period end