SYNOPSYS INC (SNPS) Stock Institutional Trading Activity


SYNOPSYS INC (SNPS) 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 Polen Capital Management, ARK Invest, Parnassus Endeavor Fund, Sequoia Financial Advisors, and Cullen Value Fund. 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
Q4 2020Parnassus Endeavor FundBuy8,9763,043,830$789,082
Q3 2020Dodge & Cox Stock FundSell-10015,330$3,280
Q3 2020ARK InvestBuy536,678631,126$135,048
Q3 2020Parnassus Endeavor FundSell-718,4983,034,854$649,398
Q2 2020Dodge & Cox Stock FundBuy18015,430$3,009
Q2 2020ARK InvestBuy36,64094,448$18,417
Q2 2020Parnassus Endeavor FundSell-45,0013,753,352$731,904
Q1 2020Dodge & Cox Stock FundSell-1,60015,250$1,964
Q1 2020ARK InvestBuy57,80857,808$7,445
Q1 2020Parnassus Endeavor FundBuy26,5043,798,353$489,190
Q4 2019Dodge & Cox Stock FundSell-2,00016,850$2,346
Q4 2019Parnassus Endeavor FundSell-434,6683,771,849$525,042
Q4 2019Renaissance Technologies LLCSell-2,000215,934$30,058
Q3 2019Dodge & Cox Stock FundSell-1,48018,850$2,587
Q3 2019Parnassus Endeavor FundSell-1,003,3514,206,517$577,344
Q3 2019Renaissance Technologies LLCBuy61,200217,934$29,911
Q3 2019Egerton Capital UKSell-71,718893,313$122,607
Q2 2019Dodge & Cox Stock FundSell-18,30020,330$2,616
Q2 2019Parnassus Endeavor FundSell-1,513,7965,209,868$670,458
Q2 2019Renaissance Technologies LLCSell-193,600156,734$20,170
Q2 2019Egerton Capital UKSell-1,234,454965,031$124,190
Q1 2019Dodge & Cox Stock FundSell-776,31638,630$4,448
Q1 2019Parnassus Endeavor FundSell-71,4976,723,664$774,230
Q1 2019Renaissance Technologies LLCSell-277,450350,334$40,341
Q1 2019Egerton Capital UKBuy1,291,6432,199,485$253,271
Q4 2018Dodge & Cox Stock FundSell-2,602,694814,946$68,651
Q4 2018Parnassus Endeavor FundBuy931,6666,795,161$572,424
Q4 2018Renaissance Technologies LLCSell-418,050627,784$52,885
Q4 2018Egerton Capital UKSell-114,358907,842$76,477
Q3 2018Dodge & Cox Stock FundSell-1,807,7953,417,640$337,013

Frequently asked questions about SNPS activity

  • Which institutional owners are buying SNPS?

    Institutional owners buying SNPS 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 SNPS activity?

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

  • Is institutional interest in SNPS increasing?

    Institutional interest in SNPS 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.