ALIGN TECHNOLOGY INC (ALGN) Institutional Ownership Changes & 13F Activity

ALIGN TECHNOLOGY INC (ALGN) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Disciplined Growth Investors, Sequoia Fund, Alapocas Investment Partners, ARK Invest, and Sequoia Financial Advisors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2019ARK InvestBuy1,50020,414$5,804
Q1 2019Disciplined Growth InvestorsBuy708957,190$272,158
Q1 2019Sequoia Financial AdvisorsBuy93837$238
Q4 2018Polen Capital ManagementSell-397,7941,713,303$358,817
Q4 2018Renaissance Technologies LLCSell-258,9002,519,481$527,655
Q4 2018Bares Capital ManagementBuy88,85088,850$18,608
Q4 2018Viking Global InvestorsBuy18,568561,100$117,511
Q4 2018Disciplined Growth InvestorsBuy18,459956,482$200,316
Q4 2018ARK InvestBuy6,93218,914$3,961
Q3 2018Polen Capital ManagementSell-255,6712,111,097$825,903
Q3 2018Renaissance Technologies LLCSell-180,2192,778,381$1,086,958
Q3 2018Disciplined Growth InvestorsBuy9,958938,023$366,973
Q3 2018ARK InvestSell-2,23911,982$4,688
Q3 2018Sequoia Financial AdvisorsSell-214744$291
Q2 2018Polen Capital ManagementSell-301,6092,366,768$809,766
Q2 2018Disciplined Growth InvestorsSell-31,300928,065$317,528
Q2 2018ARK InvestSell-3,86314,221$4,866
Q2 2018Sequoia Financial AdvisorsSell-43958$328
Q1 2018Renaissance Technologies LLCBuy344,5002,958,600$742,993
Q1 2018Polen Capital ManagementBuy46,8712,668,377$670,110
Q1 2018Disciplined Growth InvestorsSell-34,252959,365$240,925
Q1 2018ARK InvestBuy2,01218,084$4,541
Q1 2018Sequoia Financial AdvisorsSell-2321,001$251
Q4 2017Renaissance Technologies LLCBuy576,9002,614,100$580,827
Q4 2017Polen Capital ManagementSell-443,6702,621,506$582,472
Q4 2017Disciplined Growth InvestorsSell-95,751993,617$220,772
Q4 2017Viking Global InvestorsSell-39,435542,532$120,545
Q4 2017ARK InvestBuy1,87516,072$3,571
Q4 2017Sequoia Financial AdvisorsSell-2351,233$274
Q3 2017Viking Global InvestorsBuy581,967581,967$108,403

Frequently asked questions about ALGN activity

  • Which institutional owners are buying ALGN?

    Institutional owners buying ALGN 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 ALGN activity?

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

  • Is institutional interest in ALGN increasing?

    Institutional interest in ALGN 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.

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