$ACIW

$55.68 -$0.20 (0.36%) Close

$ACIW Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 101.0M shares outstanding

Who owns ACIW?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 58.0%

BlackRock, Inc. 16.2% · Vanguard Portfolio Management LLC 8.0%

Institutional ownership

100.0%

+0.2 pts vs last qtr

Institutional holders

377

-5 vs last qtr

Net shares bought

+3.3M

by institutions in Q2 2026

New / sold out

48 / 53

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +4.4M
Norges Bank NEW +1.3M

Biggest sellers in Q2 2026

Global Alpha Capital Management Ltd. SOLD OUT −915.7K
BlackRock, Inc. −636.7K

Who is planning to sell?

Notices of proposed sale, last 12 months

$201K

1 notice from 1 person

Shares covered

4.2K

0.00% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Abraham Kuruvilla Officer $201K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−11.8%

−1.39% a year

Each share's claim on the business

+13.4%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$888M vs $337M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years79% 3–5 years4% 1–3 years9% Under 1 year7%

Quarterly turnover

9.1%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ACIW on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	16.4M	16.23%	−636.7K (−3.7%)	≤2021	0.0%
Shares held by quarter Peak holding19.2M (Q3'24) Change over 8 quarters−2.8M Share of the company16.230% BlackRock, Inc.'s full portfolio →
VP Vanguard Portfolio Management LLC	8.1M	8.04%	+55.7K (+0.7%)	≤2021	0.0%
Shares held by quarter Peak holding8.1M (Q2'26) Change over 8 quarters+8.1M Share of the company8.040% Vanguard Portfolio Management LLC's full portfolio →

BlackRock, Inc.

16.4M

% of company

16.23%

Change vs last qtr

−636.7K (−3.7%)

Held since

≤2021

Vanguard Portfolio Management LLC

8.1M

% of company

8.04%

Change vs last qtr

+55.7K (+0.7%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding ACI Worldwide, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ACIW on Form N-PORT; together they hold 59.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$308M	6.1M	6.07%	0.28%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$163M	3.2M	3.20%	0.01%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$308M

% of company

6.07%

% of the fund

0.28%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$163M

% of company

3.20%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding ACI Worldwide, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BS Behrens Scott W Insider	532.4K	0.53%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.530% Behrens Scott W's insider activity →
WT Warsop Thomas W III Insider	483.0K	0.48%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.480% Warsop Thomas W III's insider activity →

Behrens Scott W

Insider

532.4K

% of company

0.53%

Change vs last qtr

—

Held since

—

Warsop Thomas W III

Insider

483.0K

% of company

0.48%

Change vs last qtr

—

Held since

—

15 more holders behind a free account

See every insider and 5%+ holder of ACI Worldwide, Inc..

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