Accelerant Holdings - Class A common shares, $0.0000011951862 par value per share (ARX) Institutional Ownership

13F Institutional Holders and Ownership History from Q3 2025 to Q4 2025

Type / Class
Equity / Class A common shares, $0.0000011951862 par value per share
Symbol
ARX on NYSE
Shares outstanding
205,693,984
Price per share
$15.04
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
52,169,861
Total reported value
$842,032,614
% of total 13F portfolios
0%
Share change
+679,970
Value change
+$15,544,979
Number of holders
99
Price from insider filings
$15.04
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Accelerant Holdings - Class A common shares, $0.0000011951862 par value per share (ARX) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
ACP Accelerant Holdings, L.P. 44% $1,353,750,273 90,916,741 ACP Insurance Management, LLC 30 Sep 2025
RADKE JEFFREY L 30% $547,219,606 36,750,813 RADKE JEFFREY L 30 Sep 2025
Lee-Smith Christopher 17% $303,561,537 20,386,940 Lee-Smith Christopher 30 Sep 2025
ONeill Francis James 7% $120,307,269 8,079,736 ONeill Francis James 30 Sep 2025
Capital World Investors 5.1% $85,665,892 5,753,250 Capital World Investors 30 Sep 2025

As of 31 Dec 2025, 99 institutional investors reported holding 52,169,861 shares of Accelerant Holdings - Class A common shares, $0.0000011951862 par value per share (ARX). This represents 25% of the company’s total 205,693,984 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Accelerant Holdings - Class A common shares, $0.0000011951862 par value per share (ARX) together control 23% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
SECURITY BENEFIT LIFE INSURANCE CO /KS/ 2.9% 5,866,257 0% 40% $95,913,302
Capital World Investors 2.8% 5,767,631 +0.25% 0.01% $94,300,767
GILDER GAGNON HOWE & CO LLC 1.8% 3,703,078 -5% 0.64% $60,545,325
Keenan Capital, LLC 1.5% 3,139,980 9.4% $51,338,673
BARINGS LLC 1.5% 3,128,867 0% 0.77% $41,926,818
ALLIANCEBERNSTEIN L.P. 1.4% 2,846,468 +2.1% 0.01% $46,539,752
Balyasny Asset Management L.P. 1.3% 2,733,595 +35% 0.08% $44,694,278
Azora Capital LP 1.2% 2,439,094 +289% 2.5% $39,879,187
VANGUARD GROUP INC 1.1% 2,235,136 -0.6% 0% $36,544,474
Deer Park Road Corp 1% 2,099,057 0% 56% $32,603,603
JPMORGAN CHASE & CO 0.95% 1,952,996 +21% 0% $31,931,485
FMR LLC 0.87% 1,788,135 +220% 0% $29,236,007
ArrowMark Colorado Holdings LLC 0.8% 1,644,013 +59% 0.59% $26,879,613
Grandeur Peak Global Advisors, LLC 0.79% 1,621,022 +71% 3.6% $26,503,710
AMERICAN CENTURY COMPANIES INC 0.74% 1,528,451 +67% 0.01% $24,990,174
BAMCO INC /NY/ 0.59% 1,209,114 -0.75% 0.05% $19,769,014
T. Rowe Price Investment Management, Inc. 0.47% 976,086 -59% 0.01% $15,960,000
CITADEL ADVISORS LLC 0.35% 715,452 -22% 0.01% $11,697,640
NORGES BANK 0.32% 665,076 0% $10,873,993
UBS Group AG 0.26% 535,637 +332% 0% $8,757,665
FRED ALGER MANAGEMENT, LLC 0.21% 439,698 -16% 0.03% $7,189,063
MARSHALL WACE, LLP 0.17% 348,147 +231% 0.01% $5,692,204
BANK OF AMERICA CORP /DE/ 0.16% 335,739 -34% 0% $5,489,333
GOLDMAN SACHS GROUP INC 0.15% 302,626 +221% 0% $4,947,935
BlackRock, Inc. 0.12% 247,656 -89% 0% $4,049,176

Institutional Holders of Accelerant Holdings - Class A common shares, $0.0000011951862 par value per share (ARX) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 52,169,861 $842,032,614 +$15,544,979 $16.35 99
2025 Q3 51,346,156 $757,658,145 +$757,653,766 $14.89 89