MYRIAD GENETICS INC (MYGN) Stock Institutional Trading Activity


MYRIAD GENETICS INC (MYGN) 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 Renaissance Technologies LLC, Disciplined Growth Investors, First Eagle U.S. Value, Tiger Global Management, and Viking Global Investors. 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 2016Renaissance Technologies LLCBuy297,5001,332,300$40,768
Q2 2016Disciplined Growth InvestorsBuy37,7001,357,182$41,530
Q1 2016Renaissance Technologies LLCBuy85,2001,034,800$38,733
Q1 2016Disciplined Growth InvestorsSell-29,3251,319,482$49,388
Q4 2015Renaissance Technologies LLCBuy93,000949,600$40,985
Q4 2015Disciplined Growth InvestorsSell-30,1251,348,807$58,215
Q3 2015Renaissance Technologies LLCBuy216,800856,600$32,105
Q3 2015Disciplined Growth InvestorsBuy15,7001,378,932$51,682
Q2 2015Renaissance Technologies LLCBuy366,100639,800$21,747
Q2 2015Disciplined Growth InvestorsBuy8,5251,363,232$46,336
Q1 2015Renaissance Technologies LLCBuy179,700273,700$9,689
Q1 2015Tiger Global ManagementSell-1,608,903291,097$10,305
Q1 2015Disciplined Growth InvestorsBuy493,3001,354,707$47,957
Q4 2014Renaissance Technologies LLCBuy33,52694,000$3,202
Q4 2014Disciplined Growth InvestorsSell-5,925861,407$29,340
Q3 2014Renaissance Technologies LLCBuy11,27460,474$2,332
Q3 2014Disciplined Growth InvestorsBuy45,720867,332$33,453
Q2 2014Renaissance Technologies LLCSell-13,60049,200$1,915
Q2 2014Viking Global InvestorsBuy1,330,2941,330,294$51,775
Q2 2014Tiger Global ManagementSell-445,9211,900,000$73,948
Q2 2014Disciplined Growth InvestorsSell-6,425821,612$17,237
Q1 2014Renaissance Technologies LLCSell-299,90062,800$2,147
Q1 2014First Eagle U.S. ValueBuy284,826284,826$9,738
Q1 2014Tiger Global ManagementBuy1,143,8212,345,921$80,207
Q4 2013Renaissance Technologies LLCSell-2,171,331362,700$7,609
Q4 2013Tiger Global ManagementBuy1,202,1001,202,100$25,220
Q4 2013Disciplined Growth InvestorsBuy33,157828,037$17,372
Q3 2013Renaissance Technologies LLCBuy254,6572,534,031$59,550
Q3 2013Muhlenkamp & CoBuy2,865484,765$11,392
Q3 2013Disciplined Growth InvestorsBuy20,360794,880$18,680

Frequently asked questions about MYGN activity

  • Which institutional owners are buying MYGN?

    Institutional owners buying MYGN 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 MYGN activity?

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

  • Is institutional interest in MYGN increasing?

    Institutional interest in MYGN 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.