ACI Worldwide Inc (ACIW)
Technology
Software - Infrastructure
57.30 $
-0.6%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns ACI Worldwide Inc (ACIW)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.7% of the shares are freely tradable; institutional investors hold 102.9%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
102.9%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
1.2%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
98.7%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
6.0%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
102Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.74 | 17,018,137 | -0.9 | 03/31/2026 |
| Vanguard Group Inc | 13.19 | 13,407,325 | -1.7 | 12/31/2025 |
| Vanguard Portfolio Management, LLC | 7.92 | 8,056,347 | +0.0 | 03/31/2026 |
| Franklin Resources Inc | 6.51 | 6,616,371 | +13.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.47 | 4,540,512 | +0.0 | 03/31/2026 |
| State Street Corp | 4.08 | 4,150,909 | +0.4 | 03/31/2026 |
| Geode Capital Management, LLC | 3.12 | 3,174,725 | +3.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.15 | 6,253,662 | +0.0 | 05/29/2026 |
| Vanguard Total Stock Mkt Idx Inv | 3.17 | 3,217,769 | +0.3 | 04/30/2026 |
| Franklin US Small Cap Value Equity | 2.99 | 3,034,709 | +20.2 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.