$ARX

$19.82 +$0.05 (0.25%) Close

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

Ownership

13F as of Q2 2026 · 218.4M shares outstanding

Who owns ARX?

By type of holder

Institutions 29.5% Insiders 0.0% Everyone else 70.5%

Concentration Top 10 holders own 17.8%

Security Benefit Life Insurance Co /KS/ 2.7% · FMR LLC 2.6%

Institutional ownership

29.5%

+4.0 pts vs last qtr

Institutional holders

115

+8 vs last qtr

Net shares bought

+8.8M

by institutions in Q2 2026

New / sold out

37 / 29

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +3.8M
BlackRock, Inc. +3.3M

Biggest sellers in Q2 2026

Alliancebernstein L.P. −1.4M
Bamco Inc /ny/ SOLD OUT −1.2M

Who is planning to sell?

Notices of proposed sale, last 12 months

$21.1M

16 notices from 5 people

Shares covered

1.6M

0.72% of the company

Arranged in advance

87%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Francis James O'Neill Officer 10b5-1 $8.67M
Radke Jeffrey L Officer 10b5-1 $8.21M

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, FY2023–FY2025

+14.9%

+7.19% a year

Each share's claim on the business

−13.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $56.3M

over 3 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+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

26.5%

of institutional shares changed hands

Top 10 managers, median time held

3 quarters

Super Investors

Investment managers reporting ARX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
SB Security Benefit Life Insurance Co /KS/	5.9M	2.69%	Unchanged	Q3 '25	37.9%
Shares held by quarter Peak holding5.9M (Q3'25) Change over 8 quarters+5.9M Share of the company2.690% Security Benefit Life Insurance Co /KS/'s full portfolio →
F FMR LLC	5.6M	2.58%	+3.8M (+210.6%)	Q3 '25	0.0%
Shares held by quarter Peak holding5.6M (Q2'26) Change over 8 quarters+5.6M Share of the company2.580% FMR LLC's full portfolio →

Security Benefit Life Insurance Co /KS/

5.9M

% of company

2.69%

Change vs last qtr

Unchanged

Held since

Q3 '25

FMR LLC

5.6M

% of company

2.58%

Change vs last qtr

+3.8M (+210.6%)

Held since

Q3 '25

28 more super investors behind a free account

See every manager holding Accelerant Holdings, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ARX on Form N-PORT; together they hold 3.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SC Small Cap Value Fund American Century Capital Portfolios, Inc.	$24.7M	2.1M	0.96%	0.81%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$18.8M	1.6M	0.73%	0.00%	June 30, 2026

Small Cap Value Fund

American Century Capital Portfolios, Inc.

Position value

$24.7M

% of company

0.96%

% of the fund

0.81%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$18.8M

% of company

0.73%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Accelerant Holdings and how much of the fund the position is.

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