ACI Worldwide Ownership | Who Owns ACI Worldwide?

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ACI Worldwide Ownership Summary

ACI Worldwide is owned by 75.92% institutional investors, 1.14% insiders, and 22.94% retail investors. Blackrock is the largest institutional shareholder, holding 17.10% of ACIW shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.20% of its assets in ACI Worldwide shares.

ACIW Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	ACI Worldwide	75.92%	1.14%	22.94%
Sector	Technology Stocks	35.40%	13.12%	51.48%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	18.26M	17.10%	$722.91M
Blackrock funding, inc. /de	17.02M	16.37%	$697.91M
Vanguard group	13.41M	12.99%	$641.00M
Franklin resources	6.62M	6.36%	$271.34M
State street	4.13M	3.96%	$217.92M
Geode capital management	3.08M	2.98%	$147.18M
Hood river capital management	2.98M	2.86%	$157.37M
Dimensional fund advisors lp	2.81M	2.71%	$115.36M
Alliancebernstein	2.34M	2.24%	$123.28M
Reinhart partners	2.23M	2.15%	$91.65M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Kopion asset management	181.31K	5.79%	$7.44M
North reef capital management lp	1.78M	4.40%	$94.13M
Rice hall james & associates	996.57K	2.87%	$52.59M
Reinhart partners	2.23M	2.63%	$91.65M
Value management	360.90K	2.40%	$14.80M
Global alpha capital management	915.66K	2.26%	$37.55M
Cardinal capital management llc /ct	208.39K	2.26%	$8.25M
Prospect capital advisors	72.80K	1.99%	$3.84M
Hood river capital management	2.98M	1.86%	$157.37M
Aristotle capital boston	660.82K	1.68%	$27.09M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	1.14M	0.01%	1.14M
Reinhart partners	2.23M	2.63%	1.10M
London co of virginia	1.73M	0.50%	825.67K
Franklin resources	6.62M	0.07%	775.17K
Vanguard fiduciary trust	718.22K	0.01%	718.22K

Top Sellers

Holder	Shares	% Assets	Change
Macquarie group	-	-	-1.05M
Cardinal capital management llc /ct	208.39K	2.26%	-1.04M
Blackrock	18.26M	0.02%	-815.12K
North reef capital management lp	1.78M	4.40%	-756.15K
Fiera capital	-	-	-653.94K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.14M	0.01%	1.14M	$54.74M
Vanguard fiduciary trust	718.22K	0.01%	718.22K	$29.45M
Hotchkis & wiley capital management	197.24K	0.03%	197.24K	$10.41M
Axa investment managers	190.45K	0.03%	190.45K	$10.05M
Balyasny asset management	152.16K	0.01%	152.16K	$6.99M

Sold Out

Holder	Change
Tortoise investment management	-2.00
Bogart wealth	-2.00
Turning point benefit group	-3.00
Abound wealth management	-6.00
Flagship harbor advisors	-6.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	304	-24.57%	78,385,834	-25.25%	75	0.75%	146	-30.48%	114	-19.72%
Sep 30, 2025	383	-1.29%	104,356,630	8.77%	99	1.18%	200	7.53%	134	-12.42%
Jun 30, 2025	389	-4.66%	101,558,970	-0.72%	97	1.03%	189	-11.27%	153	10.07%
Mar 31, 2025	402	6.63%	101,866,492	-1.04%	96	1.00%	213	-3.18%	134	28.85%
Dec 31, 2024	369	1.37%	102,150,924	1.55%	97	1.06%	215	2.38%	102	-9.73%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	6.28M	6.20%	1.34K
Vanguard Total Stock Mkt Idx Inv	3.21M	3.15%	-56.90K
Vanguard US Total Market Shares ETF	3.31M	3.14%	2.82K
Franklin Small Cap Value A	3.03M	2.98%	-138.65K
Franklin US Small Cap Value Equity	3.03M	2.98%	510.88K
Franklin Small Cap Value SMA Composite	3.03M	2.98%	3.03M
Vanguard Information Technology ETF	2.54M	2.50%	-2.69K
iShares Russell 2000 ETF	2.47M	2.44%	20.82K
Vanguard Small Cap Index	2.35M	2.31%	7.37K
FullerThaler Beh Small-Cap Equity SMA	1.75M	1.72%	39.10K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 03, 2026	Benitez Juan II	-	Buy	$100.55K
Mar 02, 2026	SANCHEZ ADALIO T	-	Buy	$122.94K
Nov 10, 2025	Kuruvilla Abraham	Chief Technology Officer	Sell	$200.79K
Jun 18, 2025	ESTEP JANET O	-	Sell	$200.97K
Jun 10, 2025	Harman Mary P	-	Sell	$341.54K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	2	-
2025 Q4	-	1
2025 Q3	-	-
2025 Q2	1	2

ACIW Ownership FAQ

Who owns the most shares of ACI Worldwide?

ACI Worldwide’s largest shareholders are Blackrock (18.26M shares, 17.10%), Blackrock funding, inc. /de (17.02M shares, 16.37%), and Vanguard group (13.41M shares, 12.99%). Together, they hold 46.45% of ACI Worldwide’s total shares outstanding.

Does Blackrock own ACI Worldwide?

Yes, BlackRock owns 17.10% of ACI Worldwide, totaling 18.26M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 722.91M$. In the last quarter, BlackRock decreased its holdings by -815K shares, a -4.27% change.

Who is ACI Worldwide’s biggest shareholder by percentage of total assets invested?

Kopion asset management is ACI Worldwide’s biggest shareholder by percentage of total assets invested, with 5.79% of its assets in 181.32K ACI Worldwide shares, valued at 7.44M$.

Who is the top mutual fund holder of ACI Worldwide shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of ACI Worldwide shares, with 6.20% of its total shares outstanding invested in 6.28M ACI Worldwide shares.

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