ACI WORLDWIDE INC (ACIW) Institutional Ownership Changes & 13F Activity

ACI WORLDWIDE INC (ACIW) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC, Sequoia Financial Advisors, Vulcan Value Partners, and Parnassus Endeavor Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2017Vulcan Value PartnersSell-302,9867,167,201$163,269
Q3 2017Renaissance Technologies LLCSell-150,000216,633$4,935
Q2 2017Vulcan Value PartnersSell-1,401,0297,470,187$167,108
Q2 2017Renaissance Technologies LLCBuy288,900366,633$8,202
Q1 2017Vulcan Value PartnersSell-283,4378,871,216$189,755
Q4 2016Vulcan Value PartnersBuy104,1859,154,653$166,157
Q3 2016Vulcan Value PartnersBuy290,7739,050,468$175,398
Q2 2016Vulcan Value PartnersBuy180,1448,759,695$170,902
Q1 2016Vulcan Value PartnersBuy524,4518,579,551$178,369
Q1 2016Renaissance Technologies LLCBuy56,10077,733$1,616
Q4 2015Renaissance Technologies LLCSell-255,20021,633$463
Q4 2015Vulcan Value PartnersSell-25,5108,055,100$172,379
Q3 2015Vulcan Value PartnersSell-2,871,0378,080,610$170,662
Q3 2015Renaissance Technologies LLCBuy251,600276,833$5,847
Q2 2015Vulcan Value PartnersBuy108,54810,951,647$269,082
Q1 2015Vulcan Value PartnersBuy1,619,75510,843,099$234,862
Q4 2014Vulcan Value PartnersBuy3,148,6879,223,344$186,035
Q4 2014Renaissance Technologies LLCSell-81,17825,233$509
Q3 2014Vulcan Value PartnersBuy4,006,6086,074,657$111,713
Q2 2014Vulcan Value PartnersBuy359,5382,068,049$115,459
Q2 2014Renaissance Technologies LLCSell-43,900106,411$5,941
Q1 2014Vulcan Value PartnersBuy572,8621,708,511$101,127
Q1 2014Renaissance Technologies LLCBuy37,000150,311$8,897
Q4 2013Vulcan Value PartnersBuy110,9341,135,649$73,817
Q3 2013Vulcan Value PartnersBuy173,7601,024,715$55,396
Q2 2013Vulcan Value PartnersBuy850,955850,955$39,552
Q2 2013Renaissance Technologies LLCBuy113,311113,311$5,267

Frequently asked questions about ACIW activity

  • Which institutional owners are buying ACIW?

    Institutional owners buying ACIW 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 ACIW activity?

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

  • Is institutional interest in ACIW increasing?

    Institutional interest in ACIW 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.

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