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Alphatec (ATEC) Institutional Ownership

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$10.82 -0.43 (-3.82%)
Closing price 10/13/2026 04:00 PM Eastern
Extended Trading
$10.82 0.00 (0.00%)
As of 04:11 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Alphatec (NASDAQ:ATEC)

Current
Institutional Ownership
Percentage
66.35%
Number of
Institutional Buyers
(last 12 months)
150
Total
Institutional Inflows
(last 12 months)
$338.91M
Number of
Institutional Sellers
(last 12 months)
91
Total
Institutional Outflows
(last 12 months)
$239.99M
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ATEC Institutional Buying and Selling by Quarter

Alphatec Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/8/2026Valeo Financial Advisors LLC43,217$446K0.0%-2.6%0.028%
10/6/2026Congress Asset Management Co.532,069$5.49M0.0%+20.7%0.344%
10/5/2026Park National Corp OH12,264$127K0.0%N/A0.008%
9/9/2026Engineers Gate Manager LP99,185$858K0.0%-65.4%0.064%
9/9/2026Integrated Wealth Concepts LLC6,009$52K0.0%N/A0.004%
9/9/2026Squarepoint Ops LLC326,548$2.83M0.0%-46.2%0.211%
9/8/2026Allworth Financial LP6,666$58K0.0%+82.6%0.004%
9/8/2026Arizona State Retirement System31,323$271K0.0%-4.0%0.020%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al25,200$218K0.0%N/A0.016%
8/22/2026FirstWave Capital Management LLC143,851$1.24M0.5%N/A0.093%
8/14/2026Paradigm Capital Management Inc. NY1,088,200$9.41M0.3%N/A0.705%
8/10/2026Great Lakes Advisors LLC280,161$2.42M0.0%N/A0.181%
8/6/2026Bank of New York Mellon Corp357,406$3.09M0.0%N/A0.232%
7/10/2026Handelsbanken Fonder AB49,400$427K0.0%N/A0.032%
7/10/2026Redhawk Wealth Advisors Inc.19,412$168K0.0%+87.8%0.013%
7/9/2026Atlas Brown Inc.12,800$111K0.0%N/A0.008%
7/9/2026Valeo Financial Advisors LLC44,363$384K0.0%+7.2%0.029%
7/8/2026Assenagon Asset Management S.A.161,238$1.40M0.0%-37.2%0.105%
6/18/2026Western Wealth Management LLC103,909$1.13M0.0%+20.9%0.068%
5/19/2026Western Wealth Management LLC103,909$1.13M0.0%+20.9%0.068%
5/19/2026Bank of America Corp DE2,560,971$27.86M0.0%+26.9%1.665%
5/18/2026California State Teachers Retirement System147,650$1.61M0.0%+34.1%0.096%
5/18/2026Rock Springs Capital Management LP350,000$3.81M0.2%+15.7%0.228%
5/16/2026Quantinno Capital Management LP21,452$233K0.0%+34.4%0.014%
5/15/2026Entropy Technologies LP28,685$312K0.0%+127.8%0.019%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund24,161$263K0.0%-88.1%0.016%
5/14/2026Renaissance Technologies LLC1,055,100$11.48M0.0%+21.3%0.686%
5/14/2026Arrowstreet Capital Limited Partnership507,017$5.52M0.0%+102.3%0.330%
5/14/2026Sei Investments Co.598,003$6.51M0.0%+62.2%0.389%
5/14/2026Lido Advisors LLC10,612$115K0.0%N/A0.007%
5/14/2026State of Wyoming14,302$156K0.0%+709.9%0.009%
5/13/2026Cetera Investment Advisers35,468$386K0.0%+43.9%0.023%
5/13/2026First Trust Advisors LP447,114$4.87M0.0%-18.1%0.291%
5/8/2026PNC Financial Services Group Inc.318,319$3.46M0.0%+1.5%0.207%
5/6/2026Independent Financial Group LLC39,650$431K0.0%N/A0.026%
5/5/2026Bank of New York Mellon Corp328,595$3.58M0.0%-0.4%0.214%
5/5/2026Sanctuary Advisors LLC18,112$197K0.0%N/A0.012%
5/4/2026Emerald Mutual Fund Advisers Trust1,156,826$12.59M0.6%+27.1%0.753%
5/4/2026Emerald Advisers LLC1,807,307$19.66M0.6%+10.4%1.176%
5/4/2026Principal Financial Group Inc.293,001$3.19M0.0%+166.9%0.191%
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5/1/2026Avid Wealth Partners LLC75,062$817K0.4%+29.1%0.050%
5/1/2026Kornitzer Capital Management Inc. KS100,000$1.09M0.0%N/A0.066%
4/30/2026Hsbc Holdings PLC145,990$1.62M0.0%-19.2%0.096%
4/30/2026Summit Securities Group LLC2,694$29K0.0%N/A0.002%
4/30/2026Granite Investment Partners LLC1,195,156$13.00M0.8%+4.7%0.790%
4/27/2026Y Intercept Hong Kong Ltd165,179$1.80M0.0%+119.2%0.109%
4/27/2026Elevation Point Wealth Partners LLC23,217$253K0.0%N/A0.015%
4/21/2026AA Financial Advisors LLC20,000$218K0.0%N/A0.013%
4/20/2026Kestra Private Wealth Services LLC39,000$424K0.0%N/A0.026%
4/20/2026OP Asset Management Ltd162,052$1.76M0.0%N/A0.107%
4/20/2026Assenagon Asset Management S.A.256,881$2.80M0.0%-73.7%0.170%
4/16/2026SG Americas Securities LLC67,065$730K0.0%+4.2%0.044%
4/16/2026Diversified Trust Co14,876$162K0.0%+17.6%0.010%
4/15/2026Weatherly Asset Management L. P.38,333$417K0.0%N/A0.025%
3/20/2026Hsbc Holdings PLC180,790$3.81M0.0%-51.5%0.119%
3/17/2026Rockefeller Capital Management L.P.405,656$8.54M0.0%-3.6%0.268%
3/6/2026Hsbc Holdings PLC180,790$3.81M0.0%-51.5%0.119%
3/4/2026Pure Financial Advisors LLC24,576$517K0.0%-3.9%0.016%
2/19/2026Invesco Ltd.317,143$6.67M0.0%-12.5%0.213%
2/18/2026Mercer Global Advisors Inc. ADV296,389$6.24M0.0%-3.5%0.200%
2/18/2026XTX Topco Ltd50,826$1.07M0.0%-43.2%0.034%
2/18/2026Voloridge Investment Management LLC15,242$321K0.0%N/A0.010%
2/18/2026Susquehanna Portfolio Strategies LLC32,375$681K0.0%N/A0.022%
2/18/2026Numerai GP LLC35,976$757K0.1%N/A0.024%
2/18/2026Occudo Quantitative Strategies LP269,798$5.68M0.4%+235.4%0.182%
2/18/2026Millennium Management LLC2,225,927$46.83M0.0%+292.2%1.498%
2/18/2026Janus Henderson Group PLC49,743$1.05M0.0%-51.1%0.033%
2/18/2026Gotham Asset Management LLC60,146$1.27M0.0%+137.1%0.040%
2/18/2026Engineers Gate Manager LP229,209$4.82M0.1%-27.2%0.154%
2/17/2026Freestone Grove Partners LP615,420$12.95M0.1%N/A0.414%
2/17/2026Schonfeld Strategic Advisors LLC125,816$2.65M0.0%-20.4%0.085%
2/17/2026AQR Capital Management LLC604,088$12.71M0.0%-0.7%0.407%
2/17/2026Cetera Investment Advisers24,650$519K0.0%-7.8%0.017%
2/17/2026Jain Global LLC75,511$1.59M0.0%N/A0.051%
2/17/2026Trexquant Investment LP419,882$8.83M0.1%-5.5%0.283%
2/17/2026Jump Financial LLC277,700$5.84M0.1%-24.7%0.187%
2/17/2026Iron Triangle Partners LP1,285,685$27.05M3.1%N/A0.865%
2/17/2026Price T Rowe Associates Inc. MD93,651$1.97M0.0%+7.6%0.063%
2/17/2026Osaic Holdings Inc.135,761$2.86M0.0%+3.3%0.091%
2/17/2026Russell Investments Group Ltd.289,529$6.09M0.0%-8.2%0.195%
2/17/2026State of Wisconsin Investment Board177,921$3.74M0.0%+409.9%0.120%
2/17/2026Captrust Financial Advisors63,921$1.35M0.0%+75.5%0.043%
2/17/2026Fred Alger Management LLC58,817$1.24M0.0%N/A0.040%
2/17/2026Graham Capital Management L.P.33,476$704K0.0%-36.2%0.023%
2/16/2026Squarepoint Ops LLC376,158$7.91M0.0%-36.7%0.253%
2/16/2026Verition Fund Management LLC140,355$2.95M0.0%+8.9%0.094%
2/16/2026Panagora Asset Management Inc.237,754$5.00M0.0%+239.6%0.160%
2/16/2026Mariner LLC14,943$314K0.0%N/A0.010%
2/16/2026Next Century Growth Investors LLC2,418,298$50.88M3.5%+6.1%1.628%
2/16/2026Healthcare of Ontario Pension Plan Trust Fund203,000$4.27M0.0%-15.8%0.137%
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2/16/2026Entropy Technologies LP12,593$265K0.0%-43.9%0.008%
2/16/2026Arax Advisory Partners3,059$64K0.0%-46.2%0.002%
2/16/2026Avid Wealth Partners LLC58,129$1.22M0.6%N/A0.039%
2/16/2026Barclays PLC209,266$4.40M0.0%+14.7%0.141%
2/13/2026Stifel Financial Corp58,042$1.22M0.0%-5.6%0.039%
2/13/2026Morgan Stanley4,340,936$91.33M0.0%+22.0%2.922%
2/13/2026Focused Alpha LLC40,220$846K0.2%N/A0.027%
2/13/2026First Trust Advisors LP545,602$11.48M0.0%+22.4%0.367%
2/13/2026FirstWave Capital Management LLC52,726$1.11M0.7%N/A0.035%
2/13/2026Birchview Capital LP18,058$380K0.2%-45.3%0.012%


ATEC Institutional Ownership - Frequently Asked Questions

During the previous two years, 287 institutional investors and hedge funds held shares of Alphatec. The most heavily invested institutionals were Vanguard Group Inc. ($144.83M), American Century Companies Inc. ($92.13M), Morgan Stanley ($91.33M), State Street Corp ($60.79M), Nuveen LLC ($60.46M), Geode Capital Management LLC ($59.51M), and Next Century Growth Investors LLC ($50.88M).Learn more on Alphatec's institutional investors.

66.35% of Alphatec's stock is owned by institutional investors. Learn more on ATEC's institutional investor holdings.

Of the 254 institutional investors that purchased Alphatec's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Nuveen LLC ($13.40M), American Century Companies Inc. ($2.68M), Royal Bank of Canada ($2.35M), Tudor Investment Corp ET AL ($1.98M), Millennium Management LLC ($1.74M), Granite Investment Partners LLC ($1.37M), and Iron Triangle Partners LP ($1.29M).

Institutional investors have bought a total of 20,368,222 shares in the last 24 months. This purchase volume represents approximately $338.91M in transactions.

Of the 91 institutional investors that sold Alphatec's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Braidwell LP ($7.94M), Assenagon Asset Management S.A. ($817.11K), Penn Capital Management Company LLC ($652.16K), Granite Investment Partners LLC ($579.83K), Squarepoint Ops LLC ($498.33K), Hsbc Holdings PLC ($418.19K), and New York State Common Retirement Fund ($339.60K).

Institutional investors have sold a total of 15,426,920 shares in the last 24 months. This volume of shares sold represents approximately $239.99M in transactions.


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Institutional ownership data for NASDAQ:ATEC is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/8/2026. New 13F filings are added each quarter as they're published.
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