ALPHATEC HOLDINGS INC (ATEC) Institutional Ownership Changes & 13F Activity

ALPHATEC HOLDINGS INC (ATEC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Braidwell Lp, Jacobs Levy Equity Management, Inc, Millennium Management Llc, Citadel Advisors Llc, and Royal Bank Of Canada.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncSell-41,416-28.2%105,631$913.70KQ2 2026Sep 23, 2026
State Street CorpBuy+450,185+14.9%3,481,349$30.11MQ2 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheBuy+4,701+7.5%67,093$580.35KQ2 2026Sep 09, 2026
Citadel Advisors LlcBuy+1,604,061+187.1%2,461,400$21.29MQ2 2026Sep 02, 2026
First Eagle U.S. ValueBuy+300,000+43.1%996,637$8.62MQ2 2026Aug 24, 2026
California State Teachers Retirement SystemSell-3,678-2.5%143,972$1.25MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Sell-95,643-37.2%161,238$1.39MQ2 2026Aug 21, 2026
Mercer Global Advisors IncSell-187,735-61.5%117,383$1.02MQ2 2026Aug 19, 2026
Pure Financial Advisors, LlcSell-1,433-5.7%23,847$206.28KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+7—7$60.00Q2 2026Aug 17, 2026
Braidwell LpBuy+4,358,714+200.6%6,531,439$56.50MQ2 2026Aug 14, 2026
Jacobs Levy Equity Management, IncBuy+3,352,133—3,352,133$29.00MQ2 2026Aug 14, 2026
Millennium Management LlcSell-1,663,708-59.2%1,145,837$9.91MQ2 2026Aug 14, 2026
Royal Bank Of CanadaSell-1,521,182-33.7%2,995,410$25.91MQ2 2026Aug 14, 2026
Metlife Investment Management, LlcSell-1,255,303-94.5%72,540$627.47KQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-1,219,347-59.7%823,496$7.12MQ2 2026Aug 14, 2026
Freestone Grove Partners LpBuy+1,173,065—1,173,065$10.15MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+1,000,703+72.2%2,386,326$20.64MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-852,164-97.0%26,385$228.23KQ2 2026Aug 14, 2026
Qube Research & Technologies LtdSell-741,996-93.3%53,582$463.48KQ2 2026Aug 14, 2026
Nomura Asset Management International Inc.Buy+682,345+52.8%1,974,452$17.08MQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+634,027+63.1%1,639,330$14.18MQ2 2026Aug 14, 2026
Schonfeld Strategic Advisors LlcSell-598,993-78.2%167,390$1.45MQ2 2026Aug 14, 2026
Bank Of America CorpSell-584,437-22.8%1,976,534$17.10MQ2 2026Aug 14, 2026
Susquehanna Portfolio Strategies, LlcBuy+430,767+243.6%607,576$5.26MQ2 2026Aug 14, 2026
Tremblant Capital GroupBuy+385,715+17.6%2,577,799$22.30MQ2 2026Aug 14, 2026
Parkman Healthcare Partners LlcSell-373,820-45.4%449,943$3.89MQ2 2026Aug 14, 2026
Divisadero Street Capital Management, LpBuy+283,953—283,953$2.46MQ2 2026Aug 14, 2026
Squarepoint Ops LlcSell-280,570-46.2%326,548$2.82MQ2 2026Aug 14, 2026
Sei Investments CoSell-270,875-45.3%327,128$2.83MQ2 2026Aug 14, 2026
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Frequently asked questions about ATEC activity

  • Which institutional owners are buying ATEC?

    Institutional owners buying ATEC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ATEC activity?

    "Buy" means an investor increased their reported position in ATEC compared to the prior reporting period. This reflects growing exposure to ALPHATEC HOLDINGS INC (ATEC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ATEC increasing?

    Institutional interest in ATEC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.