$AAMI

$94.85 +$1.38 (1.48%) Live

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

Ownership

13F as of Q2 2026 · 35.5M shares outstanding

Who owns AAMI?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 55.3%

Paulson & Co. Inc. 16.5% · BlackRock, Inc. 12.6%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

302

+46 vs last qtr

Net shares bought

+61.8K

by institutions in Q2 2026

New / sold out

69 / 23

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Invesco Ltd. +963.8K
Driehaus Capital Management LLC NEW +788.9K

Biggest sellers in Q2 2026

Paulson & Co. Inc. −1.9M
SG Americas Securities, LLC −512.1K

Who is planning to sell?

Notices of proposed sale, last 12 months

$168M

6 notices from 6 people

Shares covered

2.1M

5.82% 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

Paulson & Co. Inc. 10% stockholder $157M
Richard J Hart Officer $6.7M

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, FY2017–FY2025

−67.5%

−13.10% a year

Each share's claim on the business

+207.5%

grew without buying or selling a share

Diluted shares, split-adjusted

How patient are the owners?

Institutional shares by how long they've been held

5+ years66% 3–5 years7% 1–3 years9% Under 1 year18%

Quarterly turnover

15.4%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting AAMI on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
P Paulson & Co. Inc. 13D · 16.4%	5.8M	16.46%	−1.9M (−24.5%)	≤2021	16.2%
Shares held by quarter Peak holding9.0M (Q3'24) Change over 8 quarters−3.1M Share of the company16.460% Disclosed stake13D · 16.4% Paulson & Co. Inc.'s full portfolio →
B BlackRock, Inc.	4.5M	12.64%	−87.7K (−1.9%)	≤2021	0.0%
Shares held by quarter Peak holding5.5M (Q4'24) Change over 8 quarters−600.3K Share of the company12.640% BlackRock, Inc.'s full portfolio →

Paulson & Co. Inc.

13D · 16.4%

5.8M

% of company

16.46%

Change vs last qtr

−1.9M (−24.5%)

Held since

≤2021

BlackRock, Inc.

4.5M

% of company

12.64%

Change vs last qtr

−87.7K (−1.9%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Acadian Asset Management Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AAMI on Form N-PORT; together they hold 38.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$114M	1.6M	4.48%	0.10%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$60.6M	847.3K	2.39%	0.00%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$114M

% of company

4.48%

% of the fund

0.10%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$60.6M

% of company

2.39%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Acadian Asset Management 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
HR Hart Richard Jonathan Insider	73.9K	0.21%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.210% Hart Richard Jonathan's insider activity →
CR Chersi Robert J Insider	40.7K	0.11%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.110% Chersi Robert J's insider activity →

Hart Richard Jonathan

Insider

73.9K

% of company

0.21%

Change vs last qtr

—

Held since

—

Chersi Robert J

Insider

40.7K

% of company

0.11%

Change vs last qtr

—

Held since

—

2 more holders behind a free account

See every insider and 5%+ holder of Acadian Asset Management Inc..

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