ACI WORLDWIDE INC (ACIW) Institutional Shareholders
ACI WORLDWIDE INC (ACIW) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $4.87B in ACIW holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ACIW tracked by InsiderSet, reporting ownership valued at approximately $823.82M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $844.95M, representing an estimated gain of +2.57% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed ACIW value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Fmr Llc, and several other long-term asset managers with concentrated positions in ACI WORLDWIDE INC (ACIW).
This page ranks the largest institutional ACIW shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
364
Total Reported Value
$4.87B
Largest Holder
Blackrock, Inc.
Largest Position
$823.82M
Insider Transactions (90d)
8
Latest Filing Quarter
Q2 2026
New Institutional Positions
33
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 16,381,401 | $823,820,657 | $844,952,664 | +$21,132,007 | +2.57% | |
| Vanguard Portfolio Management Llc | 0.02% | 8,112,057 | $407,955,347 | $418,419,900 | +$10,464,553 | +2.57% | |
| Fmr Llc | 0.01% | 6,545,875 | $329,192,060 | $337,636,233 | +$8,444,173 | +2.57% | |
| Vanguard Capital Management Llc | 0.00% | 4,586,998 | $230,680,129 | $236,597,357 | +$5,917,228 | +2.57% | |
| State Street Corp | 0.01% | 4,294,891 | $215,942,710 | $221,530,478 | +$5,587,768 | +2.59% | |
| Geode Capital Management, Llc | 0.01% | 3,398,962 | $170,956,259 | $175,318,460 | +$4,362,201 | +2.55% | |
| Dimensional Fund Advisors Lp | 0.03% | 3,155,479 | $158,683,333 | $162,759,607 | +$4,076,274 | +2.57% | |
| Fuller & Thaler Asset Management, Inc. | 0.37% | 2,732,368 | $137,410,799 | $140,935,541 | +$3,524,742 | +2.57% | |
| North Reef Capital Management Lp | 5.05% | 2,617,000 | $131,608,930 | $134,984,860 | +$3,375,930 | +2.57% | |
| Reinhart Partners, Llc. | 2.78% | 2,424,247 | $121,916,062 | $125,042,660 | +$3,126,598 | +2.56% | |
| Hood River Capital Management Llc | 0.85% | 2,329,869 | $117,169,112 | $120,174,643 | +$3,005,531 | +2.57% | |
| Morgan Stanley | 0.01% | 2,103,315 | $105,775,805 | $108,488,988 | +$2,713,183 | +2.57% | |
| Alliancebernstein L.P. | 0.03% | 2,327,825 | $95,464,103 | $120,069,214 | +$24,605,111 | +25.77% | |
| Arrowstreet Capital, Limited Partnership | 0.04% | 1,760,554 | $88,538,261 | $90,809,375 | +$2,271,114 | +2.57% | |
| London Co Of Virginia | 0.46% | 1,594,274 | $80,229,956 | $82,232,653 | +$2,002,697 | +2.50% | |
| Congress Asset Management Co | 0.49% | 1,592,306 | $80,077,069 | $82,131,143 | +$2,054,074 | +2.57% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,342,245 | $67,501,501 | $69,232,997 | +$1,731,496 | +2.57% | |
| Norges Bank | 0.01% | 1,308,947 | $65,826,945 | $67,515,486 | +$1,688,541 | +2.57% | |
| Northern Trust Corp | 0.01% | 1,271,070 | $63,922,111 | $65,561,791 | +$1,639,680 | +2.57% | |
| Price T Rowe Associates Inc | 0.01% | 1,116,210 | $56,135,000 | $57,574,112 | +$1,439,112 | +2.56% | |
| Rice Hall James & Associates, Llc | 2.46% | 1,006,595 | $50,621,663 | $51,920,170 | +$1,298,507 | +2.57% | |
| Nomura Asset Management International Inc. | 0.07% | 961,578 | $48,358,000 | $49,598,193 | +$1,240,193 | +2.56% | |
| Massachusetts Financial Services Co | 0.01% | 777,849 | $39,118,026 | $40,121,451 | +$1,003,425 | +2.57% | |
| Goldman Sachs Group Inc | 0.00% | 744,192 | $37,425,415 | $38,385,423 | +$960,008 | +2.57% | |
| Vanguard Fiduciary Trust Co | 0.01% | 730,372 | $36,730,408 | $37,672,588 | +$942,180 | +2.57% | |
| Voya Investment Management Llc | 0.03% | 725,274 | $36,474,029 | $37,409,633 | +$935,604 | +2.57% | |
| Bank Of New York Mellon Corp | 0.01% | 635,292 | $31,948,834 | $32,768,361 | +$819,527 | +2.57% | |
| Aqr Capital Management Llc | 0.01% | 612,982 | $30,557,128 | $31,617,612 | +$1,060,484 | +3.47% | |
| Principal Financial Group Inc | 0.01% | 598,930 | $30,120,189 | $30,892,809 | +$772,620 | +2.57% | |
| Sei Investments Co | 0.03% | 585,920 | $29,465,834 | $30,221,754 | +$755,920 | +2.57% | |
| North Star Asset Management Inc | 1.15% | 579,211 | $29,128,521 | $29,875,703 | +$747,182 | +2.57% | |
| Nuveen, Llc | 0.01% | 578,122 | $29,073,756 | $29,819,533 | +$745,777 | +2.57% | |
| Aristotle Capital Boston, Llc | 1.86% | 551,926 | $27,756,361 | $28,468,343 | +$711,982 | +2.57% | |
| Bank Of America Corp | 0.00% | 544,662 | $27,391,053 | $28,093,666 | +$702,613 | +2.57% | |
| Invesco Ltd. | 0.00% | 537,839 | $27,047,924 | $27,741,736 | +$693,812 | +2.57% | |
| Metlife Investment Management, Llc | 0.12% | 531,242 | $26,716,160 | $27,401,462 | +$685,302 | +2.57% | |
| Swedbank Ab | 0.02% | 444,112 | $22,334,392 | $22,907,297 | +$572,905 | +2.57% | |
| Segall Bryant & Hamill, Llc | 0.26% | 441,958 | $22,226,068 | $22,796,194 | +$570,126 | +2.57% | |
| Citadel Advisors Llc | 0.01% | 441,204 | $22,188,149 | $22,757,302 | +$569,153 | +2.57% | |
| Victory Capital Management Inc | 0.01% | 439,979 | $22,126,545 | $22,694,117 | +$567,572 | +2.57% | |
| Envestnet Asset Management Inc | 0.01% | 427,631 | $21,505,547 | $22,057,207 | +$551,660 | +2.57% | |
| Ubs Group Ag | 0.00% | 424,816 | $21,363,997 | $21,912,009 | +$548,012 | +2.57% | |
| Van Lanschot Kempen Investment Management N.V. | 0.15% | 394,318 | $19,830,252 | $20,338,922 | +$508,670 | +2.57% | |
| Public Employees Retirement Association Of Colorado | 0.07% | 388,472 | $19,536,000 | $20,037,386 | +$501,386 | +2.57% | |
| Weitz Investment Management, Inc. | 1.28% | 367,700 | $18,491,633 | $18,965,966 | +$474,333 | +2.57% | |
| Value Holdings Management Co. Llc | 3.03% | 360,900 | $18,150,000 | $18,615,222 | +$465,222 | +2.56% | |
| Public Sector Pension Investment Board | 0.05% | 349,242 | $17,563,380 | $18,013,902 | +$450,522 | +2.57% | |
| Wcm Investment Management, Llc | 0.03% | 346,593 | $17,159,819 | $17,877,267 | +$717,448 | +4.18% | |
| Palisade Capital Management, Lp | 0.73% | 333,856 | $16,789,618 | $17,220,292 | +$430,674 | +2.57% | |
| New York State Common Retirement Fund | 0.02% | 330,523 | $16,622,002 | $17,048,376 | +$426,374 | +2.57% |
Frequently asked questions about ACIW
Who owns the most ACIW stock?
The largest holders of ACIW are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ACI WORLDWIDE INC (ACIW).
Is ACIW widely held by superinvestors?
Many widely followed stocks like ACIW appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ACIW is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.