ACI Worldwide

ACIW · NASDAQ

$54.54+$2.32 (+4.44%)TodayMarket closed ·
Prev close $52.22

Who owns ACIW

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 52.4% of ACIW’s shares.

  • BlackRock Institutional Trust Company, N.A.14.8%
  • Vanguard Portfolio Management, LLC8.0%
  • Franklin Mutual Advisers, LLC5.0%
  • Vanguard Capital Management, LLC4.5%
  • Next 6 largest institutions20.1%
  • All other shareholders47.6%
Top institutional holders of ACIW
HolderShares% of shares
BlackRock Institutional Trust Company, N.A.15.00M14.76%
Vanguard Portfolio Management, LLC8.11M7.98%
Franklin Mutual Advisers, LLC5.13M5.05%
Vanguard Capital Management, LLC4.59M4.51%
State Street Investment Management (US)4.29M4.22%
Fidelity Management & Research Company LLC4.20M4.13%
Geode Capital Management, L.L.C.3.40M3.34%
Dimensional Fund Advisors, L.P.3.16M3.10%
Fuller & Thaler Asset Management Inc.2.73M2.69%
North Reef Capital Management LP2.62M2.57%

Largest mutual fund holders

Top mutual fund holders of ACIW
HolderShares% of shares
iShares Core S&P Small-Cap ETF6.20M6.10%
Vanguard Total Stock Market Index Fund3.25M3.19%
iShares Russell 2000 ETF2.69M2.65%
Franklin Small Cap Value Fund2.53M2.48%
Vanguard Information Technology Index Fund2.49M2.45%

Insider trades

Form 4 filings by officers, directors and large holders

Insiders made no open-market buys or sales of ACIW in the last 6 months.

Latest ACIW insider transactions
InsiderTypeSharesValue
Leibrock Robert WilliamOther3.18K$157.59K
Leibrock Robert WilliamOther1.91K$100.87K
Shultz Ronald CraigOther724$38.34K
Litch Erich JOther963$50.99K
Shultz Ronald CraigOther765$40.51K
Shultz Ronald CraigOther385$20.39K
Litch Erich JOther667$35.32K
Litch Erich JOther136$7.20K
Leibrock Robert WilliamOther2.45K$113.84K
Leibrock Robert WilliamOther1.29K$55.17K

Congressional trades

Disclosed by members of Congress over the last 12 months

ACIW trades disclosed by members of Congress
MemberTypeAmountTraded
Lisa McClainHouseSale$1K–$15KOct 31, 2025
Lisa McClainHousePurchase$1K–$15KOct 30, 2025

Short interest

Settled Sep 30, 2026

Shares short
6.40M
Days to cover
8.59
% of shares outstanding
6.29%
Average daily volume
744.52K
Change since last report
−0.5%

Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.