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
$16.33
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
51,346,156
Total reported value
$757,658,145
% of total 13F portfolios
0.01%
Share change
+51,345,862
Value change
+$757,653,583
Number of holders
89
Price from insider filings
$16.33
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% $1,353,804,824 90,916,741 ACP Insurance Management, LLC 30 Sep 2025
RADKE JEFFREY L 30% $547,241,656 36,750,813 RADKE JEFFREY L 30 Sep 2025
Lee-Smith Christopher 17% $303,573,769 20,386,940 Lee-Smith Christopher 30 Sep 2025
ONeill Francis James 7% $120,312,117 8,079,736 ONeill Francis James 30 Sep 2025
Capital World Investors 5.1% $85,669,344 5,753,250 Capital World Investors 30 Sep 2025

As of 30 Sep 2025, 89 institutional investors reported holding 51,346,156 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 22% 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 33% $80,797,424
Capital World Investors 2.8% 5,753,250 0.01% $85,665,893
GILDER GAGNON HOWE & CO LLC 1.9% 3,898,272 0.59% $58,045,270
BARINGS LLC 1.5% 3,128,867 0.88% $46,369,809
ALLIANCEBERNSTEIN L.P. 1.4% 2,789,084 0.01% $41,529,461
T. Rowe Price Investment Management, Inc. 1.1% 2,355,801 0.02% $35,078,000
BlackRock, Inc. 1.1% 2,306,701 0% $34,346,778
VANGUARD GROUP INC 1.1% 2,248,607 0% $33,481,758
Deer Park Road Corp 1% 2,099,057 47% $29,692,211
Balyasny Asset Management L.P. 0.98% 2,018,784 0.06% $30,059,694
JPMORGAN CHASE & CO 0.78% 1,610,863 0% $23,985,751
BAMCO INC /NY/ 0.59% 1,218,309 0.05% $18,140,621
ArrowMark Colorado Holdings LLC 0.5% 1,031,604 0.29% $15,360,584
Driehaus Capital Management LLC 0.49% 1,011,940 0.11% $15,067,787
Grandeur Peak Global Advisors, LLC 0.46% 945,929 1.9% $14,084,883
CITADEL ADVISORS LLC 0.45% 922,087 0.01% $13,729,875
AMERICAN CENTURY COMPANIES INC 0.44% 912,825 0.01% $13,591,964
MILLENNIUM MANAGEMENT LLC 0.42% 872,080 0.01% $12,985,271
NEUBERGER BERMAN GROUP LLC 0.36% 746,117 0.01% $11,109,682
Azora Capital LP 0.3% 627,118 0.43% $9,337,787
FMR LLC 0.27% 558,645 0% $8,318,224
JANUS HENDERSON GROUP PLC 0.26% 543,284 0% $8,089,499
FRED ALGER MANAGEMENT, LLC 0.25% 520,915 0.03% $7,756,424
BANK OF AMERICA CORP /DE/ 0.25% 510,380 0% $7,599,557
Journey Advisory Group, LLC 0.21% 432,526 0.58% $7,886,031

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 9 $147 +$147 $16.33 1
2025 Q3 51,346,156 $757,658,145 +$757,653,583 $14.89 89