NYSEFinancialsInsurance Agents, Brokers & ServiceGRAND CAYMAN, Cayman Islands

Accelerant Holdings ARX

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Estimated market cap $4.31B217.37M shares, shares as of Nov 6, 2026CIK 1997350

Insider trades, 12 mo

5 buys · 25 sells

$21.58M sold, open market

Congress trades, 24 mo

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No disclosed trades

13F holders, Q3 2026

30.7% of shares · 23 added

13F holders

…

Lobbying, 12 mo

—

No lobbying filings

Federal contracts, 12 mo

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None matched

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Latest 10-Q

Q3 2026

What changed in Accelerant Holdings's latest quarterly report, compared with the one before.

Filed Nov 12, 2026 · Quarter ended Sep 30, 2026

Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.

Read the 10-Q on sec.gov ↗Filing index ↗

Latest 10-Q

What changed in Accelerant Holdings's latest quarterly report, compared with the one before.

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Insider trades

30 in 12 mo

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No open-market insider trades reported since Aug 21, 2026. Insiders have two business days to file.

Recent insider trades

Karen Sue Meriwether Director	Aug 21 Form 4 ↗	Sale	−$10.6K 542 sh @ $19.62	+2.8%
Nancy Hasley Director	Aug 13 Form 4 ↗	Sale 10b5-1 plan	−$400.8K 20,489 sh @ $19.56	+4.8%
Francis James ONeill Co-Founder, Chief U/W Officer	Aug 11 Form 4 ↗	Sale 10b5-1 plan	−$1.1M 89,219 sh @ $12.41	+60.6%
Francis James ONeill Co-Founder, Chief U/W Officer	Aug 10 Form 4 ↗	Sale 10b5-1 plan	−$767.8K 63,616 sh @ $12.07	+67.3%
Jeffrey L. Radke Co-Founder, CEO, Director, 10% owner	Aug 10 Form 4 ↗	Sale 10b5-1 plan	−$967.2K 80,000 sh @ $12.09	+67.3%

All ARX insider trades →Planned sales (Form 144): see notices

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

38.80M shares

92 funds report ARX. Values checked against market prices.

Funds own 54% of Class A shares (Q2 2026)

116 funds hold the Class A shares.

Q3 2026: 31% · 5,560 of ~8,900 funds reported so far

Q2 202654%
Q3 2026 (so far)31%

Q3 2026. 40 new, 23 added to, 21 trimmed, 64 exited since Q2 2026.

Top 13F holders
#
1	Deer Park Road Corp 13F ↗	4.59M	$90.6M	New
2	BlackRock, Inc. 13F ↗	3.68M	$72.5M	+5.1%
3	Barings LLC 13F ↗	3.13M	$61.7M	unchanged
4	JPMorgan Chase & Co 13F ↗	2.68M	$53.0M	+23.3%
5	Vanguard Portfolio Management LLC 13F ↗	2.65M	$52.2M	+9.4%
6	Qube Research & Technologies Ltd 13F ↗	2.23M	$43.9M	+830.8%
7	Vanguard Capital Management LLC 13F ↗	1.97M	$38.9M	+19.0%
8	UBS Group AG 13F ↗	1.76M	$34.7M	+216.9%
9	FIL Ltd 13F ↗	1.67M	$32.9M	New
10	Owls Nest Partners IA, LLC 13F ↗	1.63M	$32.1M	+29.9%

Download CSV Every fund that holds ARX, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What Accelerant Holdings and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What Accelerant Holdings and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q3 2025	89	—	51.13M	$756.0M
Q4 2025	98	+9	50.44M	$815.5M
Q1 2026	107	+9	55.87M	$759.0M
Q2 2026	116	+9	64.48M	$761.1M
Q3 2026	92	-24	38.80M	$765.5M

Each point is a quarter-end, from Q3 2025 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (G00894108). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q3 2025) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes2 in 12 mo 8-K events2 in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesForm 144 · 21 in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record Pending deal1 deal filed lately IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Accelerant Holdings
Address: P.O. BOX 309 UGLAND HOUSE, GRAND CAYMAN, Cayman Islands KY1-1044
Phone: (302) 658-7581
Fiscal year ends: Dec 31
Filer category: Non-accelerated filer, emerging growth company
Incorporated in: Cayman Islands
Listed as: ARX (NYSE)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$19.85−$0.04 (−0.20%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $19.75 · High $19.91Nov 13, 2026

Aug 13, 2026Low $19.51 · High $19.91Nov 13, 2026

Nov 13, 2025Low $9.36 · High $19.91Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.