ACP Accelerant Holdings, L.P. - 30 Sep 2025 SCHEDULE 13G Report for Accelerant Holdings Class A common shares, $0.0000011951862 par value per share (ARX)

Filing manager
ACP Accelerant Holdings, L.P.
Reporting owner
ACP Insurance Management, LLC
Security
Accelerant Holdings Class A common shares, $0.0000011951862 par value per share
Beneficially owned shares
90,916,741 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G

Passive or exempt beneficial ownership filing.

Ownership

44%

Beneficial ownership of this reported class.

Shares

90,916,741 shares

Shares beneficially owned as disclosed.

Event date

30 Sep 2025

Date tied to the ownership event or amendment.

Accepted by SEC

14 Nov 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
44%
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
ARX
Shares outstanding
205,693,984 shares
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
SCHEDULE 13G
Accepted by SEC
14 Nov 2025, 19:10:55 UTC
Event date
30 Sep 2025
Source filing
View source filing

Key filing fact

ACP Accelerant Holdings, L.P. disclosed 44% ownership in Accelerant Holdings Class A common shares, $0.0000011951862 par value per share (ARX) on 30 Sep 2025.

Key facts

  • ACP Accelerant Holdings, L.P. filed SCHEDULE 13G for Accelerant Holdings Class A common shares, $0.0000011951862 par value per share (ARX).
  • Disclosed ownership: 44%.
  • Date of event: 30 Sep 2025.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Nov 2025, 19:10.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (3)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
ACP Accelerant Holdings, L.P. 43% 85,976,902 0 85,976,902 /s/ Jennifer Mello Jennifer Mello, Attorney-in-Fact
ACP Insurance Management, LLC 44% 90,916,741 0 90,916,741 /s/ Jennifer Mello Jennifer Mello, Attorney-in-Fact
Schwartz Keoni Andrew 44% 90,916,741 0 90,916,741 /s/ David Pelsue David Pelsue, Attorney-in-Fact
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