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
Q2 2017Polen Capital ManagementBuy212,7733,362,570$504,789
Q1 2017ARK InvestBuy1,5137,363$845
Q1 2017Renaissance Technologies LLCBuy110,3001,426,800$163,668
Q1 2017Polen Capital ManagementBuy248,0953,149,797$361,313
Q1 2017Disciplined Growth InvestorsSell-6,7551,115,901$128,005
Q4 2016ARK InvestBuy5,8505,850$562
Q4 2016Renaissance Technologies LLCBuy372,3001,316,500$126,555
Q4 2016Lone Pine CapitalBuy39,6142,476,534$238,069
Q4 2016Polen Capital ManagementBuy1,160,3622,901,702$278,941
Q4 2016Disciplined Growth InvestorsBuy21,1251,122,656$107,921
Q3 2016Renaissance Technologies LLCBuy105,000944,200$88,519
Q3 2016Polen Capital ManagementBuy71,2191,741,340$163,251
Q3 2016Lone Pine CapitalBuy2,436,9202,436,920$228,461
Q3 2016Disciplined Growth InvestorsSell-17,6101,101,531$103,269
Q2 2016Renaissance Technologies LLCBuy138,393839,200$67,598
Q2 2016Polen Capital ManagementBuy169,5161,670,121$134,528
Q2 2016Disciplined Growth InvestorsSell-8,5251,119,141$90,147
Q1 2016Renaissance Technologies LLCBuy86,526700,807$50,942
Q1 2016Polen Capital ManagementBuy1,500,6051,500,605$109,079
Q1 2016Disciplined Growth InvestorsSell-36,4441,127,666$81,970
Q4 2015Renaissance Technologies LLCBuy364,481614,281$40,450
Q4 2015Disciplined Growth InvestorsSell-21,6751,164,110$76,657
Q3 2015Renaissance Technologies LLCSell-102,181249,800$14,179
Q3 2015Disciplined Growth InvestorsBuy15,4251,185,785$67,305
Q2 2015Renaissance Technologies LLCBuy179,802351,981$22,073
Q2 2015Disciplined Growth InvestorsBuy3,3751,170,360$73,393
Q1 2015Renaissance Technologies LLCBuy29,498172,179$9,261
Q1 2015Disciplined Growth InvestorsBuy3,5001,166,985$62,766
Q4 2014Renaissance Technologies LLCSell-15,600142,681$7,977
Q4 2014Disciplined Growth InvestorsSell-32,9251,163,485$65,050

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.