ALIGN TECHNOLOGY INC (ALGN) Stock Institutional Trading Activity


ALIGN TECHNOLOGY INC (ALGN) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Disciplined Growth Investors, Bares Capital Management, Alapocas Investment Partners, Sequoia Financial Advisors, and Giverny Capital. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2021Disciplined Growth InvestorsSell-62,543420,580$227,757
Q1 2021Viking Global InvestorsBuy9,737544,681$294,961
Q1 2021Polen Capital ManagementSell-1,034,6891,564,625$847,291
Q4 2020ARK InvestBuy2,1944,066$2,173
Q4 2020Bares Capital ManagementSell-370,041804,411$429,861
Q4 2020Sequoia Financial AdvisorsSell-253562$300
Q4 2020Disciplined Growth InvestorsSell-194,783483,123$258,171
Q4 2020Viking Global InvestorsSell-59,459534,944$285,863
Q4 2020Renaissance Technologies LLCSell-850,002594,546$317,713
Q4 2020Polen Capital ManagementBuy1,5032,599,314$1,389,021
Q3 2020ARK InvestSell-2611,872$613
Q3 2020Bares Capital ManagementSell-227,2051,174,452$384,469
Q3 2020Viking Global InvestorsBuy55,060594,403$194,584
Q3 2020Disciplined Growth InvestorsSell-19,476677,906$221,919
Q3 2020Renaissance Technologies LLCSell-766,0001,444,548$472,887
Q3 2020Polen Capital ManagementSell-660,5782,597,811$850,419
Q2 2020ARK InvestBuy6492,133$585
Q2 2020Bares Capital ManagementSell-146,2511,401,657$384,671
Q2 2020Sequoia Financial AdvisorsBuy9815$224
Q2 2020Viking Global InvestorsBuy277,129539,343$148,017
Q2 2020Disciplined Growth InvestorsSell-240,991697,382$191,390
Q2 2020Renaissance Technologies LLCSell-727,6812,210,548$606,663
Q2 2020Polen Capital ManagementBuy219,3833,258,389$894,232
Q1 2020ARK InvestSell-4271,484$258
Q1 2020Bares Capital ManagementBuy357,5041,547,908$269,259
Q1 2020Disciplined Growth InvestorsSell-9,763938,373$163,230
Q1 2020Renaissance Technologies LLCBuy327,3812,938,229$511,105
Q1 2020Polen Capital ManagementBuy212,2243,039,006$528,635
Q4 2019ARK InvestBuy1721,911$533
Q4 2019Bares Capital ManagementBuy140,8911,190,404$332,170

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.