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
Q3 2018Parnassus Endeavor FundBuy5,523,8245,863,495$578,200
Q3 2018Egerton Capital UKBuy1,022,2001,022,200$100,799
Q3 2018Renaissance Technologies LLCSell-75,6001,045,834$103,130
Q2 2018Dodge & Cox Stock FundSell-300,1955,225,435$447,140
Q2 2018Parnassus Endeavor FundBuy143,771339,671$29,066
Q1 2018Dodge & Cox Stock FundSell-127,2255,525,630$459,953
Q1 2018Renaissance Technologies LLCBuy64,8001,121,434$93,348
Q4 2017Dodge & Cox Stock FundSell-124,3705,652,855$481,849
Q4 2017Renaissance Technologies LLCBuy74,1001,056,634$90,067
Q3 2017Dodge & Cox Stock FundSell-440,3005,777,225$465,240
Q3 2017Renaissance Technologies LLCBuy81,700982,534$79,123
Q2 2017Dodge & Cox Stock FundSell-4,974,7506,217,525$453,444
Q2 2017Renaissance Technologies LLCBuy438,100900,834$65,698
Q1 2017Dodge & Cox Stock FundSell-328,40011,192,275$807,299
Q1 2017Renaissance Technologies LLCBuy199,500462,734$33,377
Q4 2016Dodge & Cox Stock FundSell-997,48611,520,675$678,107
Q4 2016Renaissance Technologies LLCBuy228,600263,234$15,494
Q3 2016Dodge & Cox Stock FundSell-1,141,31212,518,161$742,953
Q2 2016Dodge & Cox Stock FundSell-794,30013,659,473$738,704
Q1 2016Dodge & Cox Stock FundSell-565,90014,453,773$700,141
Q4 2015Dodge & Cox Stock FundSell-2,238,60015,019,673$685,047
Q4 2015Renaissance Technologies LLCSell-371,00034,634$1,580
Q3 2015Dodge & Cox Stock FundSell-2,513,10017,258,273$796,987
Q2 2015Dodge & Cox Stock FundSell-1,451,35019,771,373$1,001,420
Q2 2015Parnassus Endeavor FundBuy13,000195,900$9,922
Q1 2015Dodge & Cox Stock FundSell-87,80021,222,723$983,037
Q1 2015Renaissance Technologies LLCSell-741,300405,634$18,789
Q4 2014Dodge & Cox Stock FundSell-197,88821,310,523$926,368
Q4 2014Parnassus Endeavor FundBuy26,100182,900$7,951
Q4 2014Renaissance Technologies LLCSell-31,1001,146,934$49,857

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.