# ACI WORLDWIDE INC (ACIW) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 004498101
Page URL: https://superinvestorclub.com/stock/ACIW
Last updated: 2026-07-08T12:26:22.943Z

## Summary

As of the most recent 13F filing period, ACI WORLDWIDE INC (ACIW) is held by 1 tracked superinvestors with an aggregate position value of $15.1M representing 0367700 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Wallace Weitz](https://superinvestorclub.com/manager/82) | Weitz Investment Management | 367700 | $15.1M | 1.05% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2023-09-30: 1 holders, $6.4M aggregate, 0285000 shares
- 2023-12-31: 1 holders, $11.4M aggregate, 0372000 shares
- 2024-03-31: 1 holders, $12.4M aggregate, 0372000 shares
- 2024-06-30: 2 holders, $15.7M aggregate, 037200024474 shares
- 2024-09-30: 2 holders, $19.0M aggregate, 035660017389 shares
- 2024-12-31: 2 holders, $18.7M aggregate, 03566004560 shares
- 2025-03-31: 1 holders, $19.5M aggregate, 0356600 shares
- 2025-06-30: 1 holders, $14.0M aggregate, 0306000 shares
- 2025-09-30: 2 holders, $21.1M aggregate, 036680033120 shares
- 2025-12-31: 2 holders, $17.8M aggregate, 03677005487 shares
- 2026-03-31: 1 holders, $15.1M aggregate, 0367700 shares

## Recent congressional trades (4)

- 2025-10-31: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-10-30: Lisa McClain (Republican-MI) purchase $1,001 - $15,000
- 2025-10-30: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-08-19: Lisa McClain (Republican-MI) purchase $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "ACI WORLDWIDE INC (ACIW) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/ACIW), aggregating SEC 13F, Form 4, and congressional disclosures."