SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

ARX

Accelerant Holdings Inc.
NYSEFinancials

Latest close: 19.75 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Sep 23, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  2. Aug 21, 2026Reported sale · Form 4Karen Sue Meriwether · $10.6KOpen the filing ↗
  3. Aug 21, 2026Notice of sale · Form 144KAREN MERIWETHER · Director · $10.6KOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record13216 flagged findings
Reported transactions (Form 4)73since Jul 23, 2025 · and 19 other holdings
Corporate events (8-K)2since Mar 18, 2026

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

What the company does

British insurance underwriter

Source: Wikidata (CC0 1.0) · copied on Sep 3, 2026 · may not reflect recent changes.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-08-14listing compliance noticefreshOpen filing ↗
    “…contemplated by the Merger Agreement, including the Merger, in each case, on the terms and subject to the conditions of…”
  • 2026-08-14merger or acquisition eventfreshOpen filing ↗
    “…not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to…”
    +1 more passage from the same document
    • “…period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒…”
  • 2026-08-13listing compliance noticefreshOpen filing ↗
    “…among other things, receipt of Company shareholder approval and applicable regulatory approvals and is expected to close in the…”
    +1 more passage from the same document
    • “…including, among other things, receipt of Company shareholder approval and applicable regulatory approvals and is expected…”
  • 2026-08-13capital return (buybacks/dividends)freshOpen filing ↗
    “…100,000,000 preference shares authorized and no preference shares issued and outstanding. The Board of Directors is authorized,…”
    +1 more passage from the same document
    • “…The Board of Directors is authorized, without any action by our shareholders, to designate and issue preference shares in one or…”
  • 2026-08-13regulatory investigationfreshOpen filing ↗
    “…have occurred during the quarter ended June 30, 2026 that have materially affected, or are reasonably likely to materially affect,…”
  • 2026-08-13merger or acquisition eventfreshOpen filing ↗
    “…possible and could negatively affect our financial condition and results of operations. Unfunded investment commitments As of June…”
    +1 more passage from the same document
    • “…18 Members since March 31, 2026) and 97 Risk Capital Partners on our platform. We have grown Exchange Written Premium at a 171%…”
  • 2026-08-13merger or acquisition eventfreshOpen filing ↗
    “…subject to the liabilities of that section, and such information shall not be deemed to be incorporated by reference into any…”
    +1 more passage from the same document
    • “…that section, and such information shall not be deemed to be incorporated by reference into any of the Company’s filings under the…”
  • 2026-05-13capital return (buybacks/dividends)recentOpen filing ↗
    “…shares authorized and no preference shares issued and outstanding. The Board of Directors is authorized, without any action by our…”
    +1 more passage from the same document
    • “…is authorized, without any action by our shareholders, to designate and issue preference shares in one or more classes and to…”

1 older entry not shown

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 132)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Sep 30, 26SCHEDULE 13G ↗Passive stake · Glazer Capital, LLC · 5.0% · event on Sep 23, 26
  • Sep 23, 268-K ↗Current report · Other events
  • Aug 25, 26Form 4 ↗Insider transaction
  • Aug 21, 26Form 144 ↗Notice of proposed sale
  • Aug 14, 26Form 4 ↗Insider transaction
  • Aug 14, 26DEFA14A ↗Shareholder meeting and votes
  • Aug 14, 268-K ↗Current report · Entered a material agreement
  • Aug 14, 26DEFA14A ↗Shareholder meeting and votes
  • Aug 13, 2610-Q ↗Quarterly report
  • Aug 13, 26Form 144 ↗Notice of proposed sale
  • Aug 13, 26DEFA14A ↗Shareholder meeting and votes
  • Aug 13, 26DEFA14A ↗Shareholder meeting and votes
  • Aug 13, 268-K ↗Current report · Results · Other events
  • Insider transaction · 2 Form 4 filingsshow all 2hide
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide
  • Aug 4, 26Form 4 ↗Insider transaction
  • Aug 3, 26Form 144 ↗Notice of proposed sale
  • Insider transaction · 2 Form 4 filingsshow all 2hide
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide
  • Jul 27, 26Form 4 ↗Insider transaction
  • Jul 24, 26Form 144 ↗Notice of proposed sale

132 filings on record, the oldest from Nov 16, 23.

Listing the 25 most recent filings of the 132 on record.

8-Ks, explained

Structure1Governance1
  • Aug 14, 26StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Mar 18, 26GovernanceA senior executive left or was appointed+4 more in the same filing8-K 5.02 ↗

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • ACP Insurance Management, LLC44.2%Sep 30, 25SCHEDULE 13G ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • RADKE JEFFREY L29.9%Sep 30, 25SCHEDULE 13G ↗
  • Lee-Smith Christopher17.4%Sep 30, 25SCHEDULE 13G ↗
  • ONeill Francis James7.0%Sep 30, 25SCHEDULE 13G ↗
  • Glazer Capital, LLC5.0%Sep 23, 26SCHEDULE 13G ↗2 co-filers on this document — the figure is the largest single stake, not their sum.
show one more holderhide

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Aug 21, KAREN MERIWETHER filed notice of intent to sell up to $11K.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

After the notice, they sold $11K on Aug 21, per their Form 4. That is 100% of the shares announced so far, and the window is still open.

View notice (Form 144) ↗+9 more recent notices · 8 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Aug 21, 26Sell$11KKaren Sue Meriwether↗
  • Aug 13, 26Sell$401KNancy Hasley↗
  • Aug 11, 26Sell$1.1MFrancis James ONeillCo-Founder, Chief U/W Officer↗
  • Aug 10, 26Sell$967KJEFFREY L RADKECo-Founder, CEO↗
  • Aug 10, 26Sell$768KFrancis James ONeillCo-Founder, Chief U/W Officer↗
  • Aug 3, 26Sell$965KJEFFREY L RADKECo-Founder, CEO↗
  • Jul 28, 26Sell$1.5MFrancis James ONeillCo-Founder, Chief U/W Officer↗
  • Jul 27, 26Sell$257KMatthew David SternbergCOO, Risk Exchange↗
  • Jul 27, 26Sell$1.2MJEFFREY L RADKECo-Founder, CEO↗
  • Jul 27, 26Sell$220KJEFFREY L RADKECo-Founder, CEO↗
  • Jul 27, 26Sell$1.6MFrancis James ONeillCo-Founder, Chief U/W Officer↗
  • Jul 20, 26Sell$1.1MJEFFREY L RADKECo-Founder, CEO↗

There are 15 more transactions in this stretch.

Stock compensation, tax and giftsshow the 13 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Jul 23, 26Tax$54KMatthew David SternbergCOO, Risk Exchange↗
  • May 13, 26Compensationamount n/aPaul Christopher Little↗
  • May 13, 26Compensationamount n/aNancy Hasley↗
  • May 13, 26Compensationamount n/aKaren Sue Meriwether↗
  • May 13, 26Compensationamount n/aDavid George Paul Talach↗
  • May 13, 26Compensationamount n/aSimon Wainwright↗
  • May 13, 26Compensationamount n/aMatthew David SternbergCOO, Risk Exchange↗
  • Mar 18, 26Compensationamount n/aMatthew David SternbergCOO, Risk Exchange↗
  • Mar 18, 26Compensationamount n/aChristopher Lee-SmithCo-Founder, Head of Distrib.↗
  • Mar 18, 26Compensationamount n/aFrancis James ONeillCo-Founder, Chief U/W Officer↗
  • Mar 18, 26Compensationamount n/aJEFFREY L RADKECo-Founder, CEO↗
  • Mar 17, 26Tax$333KJay Michael GreenChief Financial Officer↗
  • Feb 2, 26Tax$2.6MJay Michael GreenChief Financial Officer↗

The full record holds 69 transactions and goes back to Jul 23, 25.

Its sector and its market

Accelerant Holdings Inc. among Financials companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
Series with incidents in the period; the chart shows what could be kept.
SEC records
132 documents on file, from Nov 16, 2023 to Sep 30, 2026.
Company description
Wikidata, read on Sep 3, 2026.
This page
Generated on Oct 18, 2026; refreshed through the day.

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No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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