ASPEN INSURANCE HOLDINGS LTD

CUSIP: G05384501 Class: COM

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
Apollo Management Holdings, L.P.75,418,220$2,798,016
HBK INVESTMENTS L P4,500,000$166,950
NUANCE INVESTMENTS, LLC1,541,315$57,183
Magnetar Financial LLC1,218,999$45,225
GLAZER CAPITAL, LLC1,123,495$42
GOLDMAN SACHS GROUP INC1,052,654$39,053
JPMORGAN CHASE & CO942,103$34,952
FIL Ltd863,280$32,028
BlackRock, Inc.832,526$30,887
WATER ISLAND CAPITAL LLC572,685$21,247
Schonfeld Strategic Advisors LLC541,721$20,098
Capula Management Ltd445,997$16,546
AQR Arbitrage LLC388,918$14,429
MARSHALL WACE, LLP312,368$11,589
MILLENNIUM MANAGEMENT LLC302,282$11,215
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP300,902$11,163
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC278,410$10,329
WELLINGTON MANAGEMENT GROUP LLP275,709$10,229
ALPINE ASSOCIATES MANAGEMENT INC.252,487$9,367
STATE STREET CORP239,736$8,894
RENAISSANCE TECHNOLOGIES LLC237,700$8,819
FMR LLC229,011$8,496
GEODE CAPITAL MANAGEMENT, LLC179,878$6,673
MORGAN STANLEY174,613$6,478
Slotnik Capital, LLC170,000$6,307
ALLIANCEBERNSTEIN L.P.168,380$6,247
UBS Group AG164,785$6,114
Burkehill Global Management, LP150,000$5,565
MOORE CAPITAL MANAGEMENT, LP143,963$5,341
GARDNER LEWIS ASSET MANAGEMENT L P130,006$4,823
GABELLI FUNDS LLC126,700$4,701
NORGES BANK110,024$4,082
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS100,000$3,710
VANGUARD GROUP INC99,755$3,701
Fortress Investment Group LLC98,430$3,652
Alpine Global Management, LLC95,002$3,525
Qube Research & Technologies Ltd77,839$2,888
NORTHERN TRUST CORP77,647$2,881
Vestcor Inc75,000$3
Groupe la Francaise69,550$2,580
PRELUDE CAPITAL MANAGEMENT, LLC62,820$2,331
Mariner, LLC61,980$2,299
WOLVERINE ASSET MANAGEMENT LLC52,086$1,932
SUSQUEHANNA INTERNATIONAL GROUP, LLP51,859$1,924
Cinctive Capital Management LP50,000$1,855
CREDIT INDUSTRIEL ET COMMERCIAL46,936$1,741
Polar Asset Management Partners Inc.46,888$1,740
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC46,600$1,729
Sagefield Capital LP46,195$1,714
Villanova Investment Management Co LLC45,320$1,681
First Trust Capital Management L.P.39,334$1,459
Aquatic Capital Management LLC39,194$1,454
CHARLES SCHWAB INVESTMENT MANAGEMENT INC38,262$1,420
Blackstone Inc.37,053$1,375
AQR CAPITAL MANAGEMENT LLC34,125$1,266
RAYMOND JAMES FINANCIAL INC33,306$1,236
BANK OF AMERICA CORP /DE/32,595$1,209
Bank of New York Mellon Corp32,487$1,205
AMERIPRISE FINANCIAL INC28,945$1,074
SG Americas Securities, LLC26,677$1
SummitTX Capital, L.P.24,540$910
BARCLAYS PLC23,999$890
Nuveen, LLC23,013$854
Trexquant Investment LP19,745$733
TWO SIGMA INVESTMENTS, LP19,222$713
WELLS FARGO & COMPANY/MN17,050$633
RHUMBLINE ADVISERS16,938$628
CITADEL ADVISORS LLC16,813$624
STRS OHIO16,700$620
LMR Partners LLP16,650$618
Canvas Wealth Advisors, LLC15,963$592
Lykos Global Management, LP15,000$557
DEUTSCHE BANK AG\13,944$517
Gotham Asset Management, LLC13,776$511
Toroso Investments, LLC13,447$499
Veradace Capital Management LLC13,424$498
XTX Topco Ltd12,776$474
Sciencast Management LP12,256$455
SEI INVESTMENTS CO11,654$432
Squarepoint Ops LLC11,447$425
ProShare Advisors LLC10,745$399
Invesco Ltd.10,407$386
Skandinaviska Enskilda Banken AB (publ)10,111$375
DARK FOREST CAPITAL MANAGEMENT LP9,987$371
MetLife Investment Management, LLC9,256$343
PRICE T ROWE ASSOCIATES INC /MD/9,146$0
Virtu Financial LLC9,003$0
R Squared Ltd8,308$308
HRT FINANCIAL LP7,442$0
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.7,177$266
STATE OF WISCONSIN INVESTMENT BOARD6,300$234
Susquehanna Portfolio Strategies, LLC6,291$233
Verition Fund Management LLC6,025$224
GAMCO INVESTORS, INC. ET AL6,000$223
MANUFACTURERS LIFE INSURANCE COMPANY, THE5,934$220
ABC ARBITRAGE SA5,545$206
NEW YORK STATE COMMON RETIREMENT FUND4,900$182
Police & Firemen's Retirement System of New Jersey4,313$160
BNP PARIBAS ARBITRAGE, SA3,331$124
PenderFund Capital Management Ltd.2,800$104
23 other institutions11,055$345
Total (123 institutions)95,417,185$3,493,556