ARX · Accelerant Holdings · Holdings

$19.84 +0.00 (+0.00%)

Russell 2000 member Rebalance outlook locked

Market Cap

$4.31B

217.19M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 117

Total Value: $756,649,783

Total Shares: 64,560,568

Showing 1–100 of 119 holdings by value · page 1 of 2

Institutional Ownership Trend

4 quarters

Superinvestors Holding ARX

All superinvestors →

Chase Coleman $879,000

Holder Concentration

Across 117 13F filers · Δ vs Mar 31, 2026

Top Holder

9.1%

−1.5 pts

Top 5

37.2%

−2.3 pts

Top 10

61.7%

+0.0 pts

HHI

475

Broadly held−31

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +10

Institutional value: +1.8%

Shares held: +16.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega FMR LLC	+3,816,472	5,628,679
Mega BlackRock, Inc.	+3,330,709	3,496,273
Mega GOLDMAN SACHS GROUP INC	+1,971,913	2,013,582
Mid Azora Capital LP	+1,069,635	3,049,846
Small Owls Nest Partners IA, LLC	+1,042,177	1,251,884

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega ALLIANCEBERNSTEIN L.P.	−1,353,035	1,447,153
Large MARSHALL WACE, LLP	−1,164,477	1,109,675
Mid ArrowMark Colorado Holdings LLC	−1,071,016	477,208
Mega Qube Research & Technologies Ltd	−691,625	239,317
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−627,527	80,519

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega GEODE CAPITAL MANAGEMENT, LLC	809,620	$9,488,746
Large Walleye Capital LLC	541,257	$6,343,532
Large PANAGORA ASSET MANAGEMENT INC	408,931	$4,792,671
Large Holocene Advisors, LP	300,000	$3,516,000
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC	148,881	$1,744,885

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large BAMCO INC /NY/	1,208,794	$16,149,487
Mega T. Rowe Price Investment Management, Inc.	975,936	$13,038,504
Mid SEVEN GRAND MANAGERS, LLC	200,000	$2,672,000
Large Point72 Asset Management, L.P.	166,692	$2,227,005
Large Trexquant Investment LP	149,119	$1,992,229

Filter: New 38 Increased 42 Reduced 27 Sold out 28 Unchanged 10

Showing 100 of 119

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

SECURITY BENEFIT LIFE INSURANCE CO /KS/

$68,752,532

9.09%

5,866,257

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Eldridge Industries, LLC	5,866,257	$68,752,532	100.0%	Sole

FMR LLC

$65,968,117

8.72%

5,628,679

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	5,414,652	$63,459,721	96.2%	Defined
Fidelity Institutional Asset Management Trust Co	213,500	$2,502,220	3.8%	Defined
FIAM LLC	527	$6,176	0.0%	Defined

Capital World Investors

$54,224,502

7.17%

4,626,664

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CAPITAL GROUP COMPANIES INC joint	4,626,664	$54,224,502	100.0%	Defined

Keenan Capital, LLC

$46,797,057

6.18%

3,992,923

AMERICAN CENTURY COMPANIES INC

$45,445,694

6.01%

3,877,619

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	3,877,619	$45,445,694	100.0%	Defined

GILDER GAGNON HOWE & CO LLC

$43,739,321

5.78%

3,732,024

BlackRock, Inc.

$40,976,315

5.42%

3,496,273

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	51,358	$601,915	1.5%	Sole
BlackRock Asset Management Canada Ltd	581	$6,809	0.0%	Sole
BlackRock Investment Management, LLC	167,742	$1,965,936	4.8%	Sole
BLACKROCK ADVISORS LLC	137,884	$1,616,000	3.9%	Sole
BlackRock Fund Advisors	2,255,642	$26,436,124	64.5%	Sole
BlackRock Institutional Trust Company, N.A.	820,543	$9,616,763	23.5%	Sole
BlackRock Fund Managers Ltd.	14,131	$165,615	0.4%	Sole
BlackRock Asset Management Ireland Ltd	41,683	$488,524	1.2%	Sole
BlackRock Asset Management Schweiz AG	6,709	$78,629	0.2%	Sole

BARINGS LLC

$36,670,321

4.85%

3,128,867

Azora Capital LP

$35,744,195

4.72%

3,049,846

VANGUARD PORTFOLIO MANAGEMENT LLC

$28,342,827

3.75%

2,418,330

JPMORGAN CHASE & CO

$25,512,176

3.37%

2,176,807

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	111,291	$1,304,330	5.1%	Defined
J.P. Morgan Investment Management Inc.	1,923,652	$22,545,201	88.4%	Defined
J.P. Morgan Securities LLC	500	$5,860	0.0%	Defined
J.P. Morgan Securities plc	569	$6,668	0.0%	Defined
JPMorgan Asset Management (UK) Ltd	140,795	$1,650,117	6.5%	Defined

GOLDMAN SACHS GROUP INC

$23,599,180

3.12%

2,013,582

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	290,482	$3,404,449	14.4%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	1,705,319	$19,986,338	84.7%	Defined
Goldman Sachs Trust Company, N.A. joint	17,781	$208,393	0.9%	Other

Cresset Asset Management, LLC

$21,560,346

2.85%

1,839,620

CITADEL ADVISORS LLC

$20,486,384

2.71%

1,747,985

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	864,771	$10,135,116	49.5%	Defined
Held directly	883,214	$10,351,268	50.5%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$19,422,348

2.57%

1,657,197

ALLIANCEBERNSTEIN L.P.

$16,960,633

2.24%

1,447,153

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	1,447,153	$16,960,633	100.0%	Defined

Owls Nest Partners IA, LLC

$14,672,080

1.94%

1,251,884

MARSHALL WACE, LLP

$13,005,390

1.72%

1,109,675

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	1,109,675	$13,005,390	100.0%	Other

JANE STREET GROUP, LLC

$11,158,212

1.47%

952,066

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	549,444	$6,439,483	57.7%	Defined
Jane Street Global Trading, LLC	402,622	$4,718,729	42.3%	Defined

STATE STREET CORP

$10,557,083

1.40%

900,775

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	900,775	$10,557,083	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$9,488,746

1.25%

809,620

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	87,892	$1,030,094	10.9%	Defined
Held directly	721,728	$8,458,652	89.1%	Defined

G2 Investment Partners Management LLC

$7,500,800

0.99%

640,000

BANK OF AMERICA CORP /DE/

$7,077,215

0.94%

603,858

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	519,296	$6,086,149	86.0%	Defined
BOFA SECURITIES, INC.	84,562	$991,066	14.0%	Defined

UBS Group AG

$6,498,130

0.86%

554,448

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	527,948	$6,187,550	95.2%	Defined
UBS Switzerland AG	26,500	$310,580	4.8%	Defined

Walleye Capital LLC

$6,343,532

0.84%

541,257

Lighthouse Investment Partners, LLC

$5,721,141

0.76%

488,152

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
North Rock Capital Management, LLC	488,152	$5,721,141	100.0%	Defined

ArrowMark Colorado Holdings LLC

$5,592,877

0.74%

477,208

PANAGORA ASSET MANAGEMENT INC

$4,792,671

0.63%

408,931

BNP PARIBAS ARBITRAGE, SA

$4,369,368

0.58%

372,813

NORTHERN TRUST CORP

$4,332,003

0.57%

369,625

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	352,372	$4,129,799	95.3%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	7,663	$89,810	2.1%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	9,590	$112,394	2.6%	Other

XTX Topco Ltd

$3,778,727

0.50%

322,417

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	322,417	$3,778,727	100.0%	Defined

Holocene Advisors, LP

$3,516,000

0.46%

300,000

RENAISSANCE TECHNOLOGIES LLC

$3,470,292

0.46%

296,100

MORGAN STANLEY

$3,281,258

0.43%

279,971

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	1,381	$16,185	0.5%	Defined
MORGAN STANLEY & CO. LLC	105,629	$1,237,971	37.7%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	143,339	$1,679,933	51.2%	Defined
MORGAN STANLEY SMITH BARNEY LLC	8,581	$100,569	3.1%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	21,041	$246,600	7.5%	Defined

Qube Research & Technologies Ltd

$2,804,795

0.37%

239,317

CANNELL CAPITAL LLC

$2,005,057

0.26%

171,080

Bank of New York Mellon Corp

$2,000,354

0.26%

170,679

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation joint	38,838	$455,180	22.8%	Defined
The Bank of New York Mellon	102,465	$1,200,889	60.0%	Defined
BNY Mellon, NA joint	29,375	$344,274	17.2%	Defined
Held directly	1	$11	0.0%	Defined

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$1,744,885

0.23%

148,881

BOOTHBAY FUND MANAGEMENT, LLC

$1,620,817

0.21%

138,295

Nuveen, LLC

$1,579,586

0.21%

134,777

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	20,899	$244,936	15.5%	Defined
TEACHERS ADVISORS, LLC joint	113,878	$1,334,650	84.5%	Defined

Swiss National Bank

$1,372,412

0.18%

117,100

Burkehill Global Management, LP

$1,172,000

0.15%

100,000

GSA CAPITAL PARTNERS LLP

$1,159,236

0.15%

98,911

Engineers Gate Manager LP

$1,152,708

0.15%

98,354

VANGUARD FIDUCIARY TRUST CO

$1,082,974

0.14%

92,404

WELLS FARGO & COMPANY/MN

$1,007,216

0.13%

85,940

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	57,090	$669,094	66.4%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	28,850	$338,122	33.6%	Defined

Militia Capital Management LLC

$937,600

0.12%

80,000

TIGER GLOBAL MANAGEMENT LLC

$879,000

0.12%

75,000

RHUMBLINE ADVISERS

$819,028

0.11%

69,883

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$808,902

0.11%

69,019

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	69,019	$808,902	100.0%	Other

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$769,898

0.10%

65,691

SEI INVESTMENTS CO

$763,452

0.10%

65,141

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI INVESTMENTS MANAGEMENT CORP	1,239	$14,521	1.9%	Sole
SEI TRUST CO	63,902	$748,931	98.1%	Sole

Woodline Partners LP

$674,532

0.09%

57,554

SummitTX Capital, L.P.

$663,164

0.09%

56,584

STATE OF WISCONSIN INVESTMENT BOARD

$619,319

0.08%

52,843

PRICE T ROWE ASSOCIATES INC /MD/

$595,997

0.08%

50,853

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	50,853	$595,997	100.0%	Defined

CITADEL ADVISORS LLC

$583,656

0.08%

49,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	49,800	$583,656	100.0%	Defined

VANGUARD ASSET MANAGEMENT, Ltd

$486,040

0.06%

41,471

Squarepoint Ops LLC

$473,816

0.06%

40,428

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	40,428	$473,816	100.0%	Defined

Jackson Creek Investment Advisors LLC

$470,686

0.06%

40,161

Legal & General Group Plc

$443,320

0.06%

37,826

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	5,935	$69,558	15.7%	Defined
Legal & General Investment Management Ltd joint	31,891	$373,762	84.3%	Defined

MetLife Investment Management, LLC

$425,506

0.06%

36,306

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	36,306	$425,506	100.0%	Defined

Invesco Ltd.

$395,372

0.05%

33,735

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	9,363	$109,733	27.8%	Defined
Invesco Trust Co joint	24,372	$285,639	72.2%	Defined

CITIGROUP INC

$393,569

0.05%

33,581

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	33,581	$393,569	100.0%	Defined

FORMULA GROWTH LTD

$363,320

0.05%

31,000

MANUFACTURERS LIFE INSURANCE COMPANY, THE

$335,121

0.04%

28,594

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MANULIFE FINANCIAL CORP joint	28,594	$335,121	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$328,429

0.04%

28,023

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	28,023	$328,429	100.0%	Defined

JONES FINANCIAL COMPANIES LLLP

$296,855

0.04%

25,329

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	25,329	$296,855	100.0%	Sole

NATIXIS ADVISORS, LLC

$296,668

0.04%

25,313

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Natixis Investment Managers, L.P.	25,313	$296,668	100.0%	Defined

Diversified Trust Co

$282,287

0.04%

24,086

Jupiter Topco LLC

$275,420

0.04%

23,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JANUS HENDERSON INVESTORS UK Ltd	23,500	$275,420	100.0%	Defined

Yorktown Management & Research Co Inc

$267,216

0.04%

22,800

WINTON GROUP Ltd

$257,840

0.03%

22,000

NEW YORK STATE COMMON RETIREMENT FUND

$250,808

0.03%

21,400

BARCLAYS PLC

$241,794

0.03%

20,631

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	12,890	$151,070	62.5%	Defined
BARCLAYS CAPITAL INC.	7,741	$90,724	37.5%	Defined

Graham Capital Management, L.P.

$234,411

0.03%

20,001

Police & Firemen's Retirement System of New Jersey

$211,253

0.03%

18,025

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	18,025	$211,253	100.0%	Defined

MILLENNIUM MANAGEMENT LLC

$204,994

0.03%

17,491

Quadrature Capital Ltd

$191,516

0.03%

16,341

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	16,341	$191,516	100.0%	Other

ARIZONA STATE RETIREMENT SYSTEM

$188,785

0.02%

16,108

PEAK6 LLC

$178,144

0.02%

15,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	15,200	$178,144	100.0%	Defined

Zurcher Kantonalbank (Zurich Cantonalbank)

$155,876

0.02%

13,300

KLP KAPITALFORVALTNING AS

$154,704

0.02%

13,200

Entropy Technologies, LP

$151,820

0.02%

12,954

Virtu Financial LLC

$149,148

0.02%

12,726

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	12,726	$149,148	100.0%	Defined

BNP PARIBAS ASSET MANAGEMENT Holding S.A.

$148,057

0.02%

12,633

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BNP PARIBAS ASSET MANAGEMENT Europe	854	$10,008	6.8%	Defined
AXA INVESTMENT MANAGERS UK LIMITED	11,779	$138,049	93.2%	Defined

VOYA INVESTMENT MANAGEMENT LLC

$144,120

0.02%

12,297

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Voya Investment Management Co. LLC joint	12,297	$144,120	100.0%	Defined

LOS ANGELES CAPITAL MANAGEMENT LLC

$143,511

0.02%

12,245

SG Americas Securities, LLC

$141,624

0.02%

12,084

Magnetar Financial LLC

$139,889

0.02%

11,936

RAYMOND JAMES FINANCIAL INC

$135,952

0.02%

11,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	11,600	$135,952	100.0%	Defined

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$134,920

0.02%

11,512

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$134,780

0.02%

11,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	11,500	$134,780	100.0%	Other

INTECH INVESTMENT MANAGEMENT LLC

$133,490

0.02%

11,390

TWO SIGMA INVESTMENTS, LP

$129,845

0.02%

11,079

State of Wyoming

$128,251

0.02%

10,943

Vanguard Investments Australia, Ltd.

$125,134

0.02%

10,677

ROYAL BANK OF CANADA

$119,707

0.02%

10,214

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	1,866	$21,869	18.3%	Defined
RBC Capital Markets, LLC	8,348	$97,838	81.7%	Defined

Pictet Asset Management Holding SA

$119,110

0.02%

10,163

PRUDENTIAL FINANCIAL INC

$118,020

0.02%

10,070

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PGIM Quantitative Solutions LLC	10,070	$118,020	100.0%	Defined

Key facts CIK 1997350 CUSIP G00894108 13F (30d) 87 filings 87 filers Visit website Investor relations