Who owns Aspen Insurance Holdings (AHL)
Which tracked institutional funds hold AHL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AHL company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-07-28). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on AHL is one-sided between 2026-Q1 and 2026-Q2: 1 added or opened and 0 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
AHL’s largest tracked holder by dollar value, Apollo Management Holdings, L.P., sizes it at 45.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 45.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in AHL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Only 3 institutional filer(s) hold this name — too few for a reliable accumulation read. The institutional-confluence signal needs at least 5 filers.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
New buyers & exits
Funds opening or closing a position in AHL between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- Sterling Capital Management LLC$927K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Apollo Management Holdings, L.P. | 75,418,220 | $2.8B | 72.9% | 2025-Q4 |
| HBK INVESTMENTS L P added | 4,500,000 | $167M | 4.3% | 2025-Q4 |
| NUANCE INVESTMENTS, LLC added | 1,541,315 | $57M | 1.5% | 2025-Q4 |
| Magnetar Financial LLC | 1,218,999 | $45M | 1.2% | 2025-Q4 |
| Glazer Capital, LLC added | 1,123,495 | $42M | 1.1% | 2025-Q4 |
| GOLDMAN SACHS GROUP INC added | 1,052,654 | $39M | 1.0% | 2025-Q4 |
| JPMORGAN CHASE & CO added | 942,103 | $35M | 0.9% | 2025-Q4 |
| FIL Ltd | 863,280 | $32M | 0.8% | 2025-Q4 |
| BlackRock, Inc. added | 832,526 | $31M | 0.8% | 2025-Q4 |
| WATER ISLAND CAPITAL LLC trimmed | 572,685 | $21M | 0.6% | 2025-Q4 |
| Schonfeld Strategic Advisors LLC added | 541,721 | $20M | 0.5% | 2025-Q4 |
| Capula Management Ltd new | 445,997 | $17M | 0.4% | 2025-Q4 |
| AQR Arbitrage LLC added | 388,918 | $14M | 0.4% | 2025-Q4 |
| MARSHALL WACE, LLP added | 312,368 | $12M | 0.3% | 2025-Q4 |
| MILLENNIUM MANAGEMENT LLC added | 302,282 | $11M | 0.3% | 2025-Q4 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP new | 300,902 | $11M | 0.3% | 2025-Q4 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 278,410 | $10M | 0.3% | 2025-Q4 |
| WELLINGTON MANAGEMENT GROUP LLP added | 275,709 | $10M | 0.3% | 2025-Q4 |
| ALPINE ASSOCIATES MANAGEMENT INC. added | 252,487 | $9M | 0.2% | 2025-Q4 |
| STATE STREET CORP added | 239,736 | $9M | 0.2% | 2025-Q4 |
| RENAISSANCE TECHNOLOGIES LLC added | 237,700 | $9M | 0.2% | 2025-Q4 |
| FMR LLC added | 229,011 | $8M | 0.2% | 2025-Q4 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 179,878 | $7M | 0.2% | 2025-Q4 |
| MORGAN STANLEY added | 174,613 | $6M | 0.2% | 2025-Q4 |
| Slotnik Capital, LLC added | 170,000 | $6M | 0.2% | 2025-Q4 |
| ALLIANCEBERNSTEIN L.P. trimmed | 168,380 | $6M | 0.2% | 2025-Q4 |
| UBS Group AG added | 164,785 | $6M | 0.2% | 2025-Q4 |
| BURKEHILL GLOBAL MANAGEMENT, LP | 150,000 | $6M | 0.1% | 2025-Q4 |
| MOORE CAPITAL MANAGEMENT, LP added | 143,963 | $5M | 0.1% | 2025-Q4 |
| GARDNER LEWIS ASSET MANAGEMENT L P new | 130,006 | $5M | 0.1% | 2025-Q4 |
| GABELLI FUNDS LLC added | 126,700 | $5M | 0.1% | 2025-Q4 |
| NORGES BANK trimmed | 110,024 | $4M | 0.1% | 2025-Q4 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 100,000 | $4M | 0.1% | 2025-Q4 |
| VANGUARD GROUP INC added | 99,755 | $4M | 0.1% | 2025-Q4 |
| Fortress Investment Group LLC new | 98,430 | $4M | 0.1% | 2025-Q4 |
| Alpine Global Management, LLC new | 95,002 | $4M | 0.1% | 2025-Q4 |
| Qube Research & Technologies Ltd added | 77,839 | $3M | 0.1% | 2025-Q4 |
| NORTHERN TRUST CORP trimmed | 77,647 | $3M | 0.1% | 2025-Q4 |
| Vestcor Inc | 75,000 | $3M | 0.1% | 2025-Q4 |
| Groupe la Francaise added | 69,550 | $3M | 0.1% | 2025-Q4 |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 62,820 | $2M | 0.1% | 2025-Q4 |
| Mariner, LLC added | 61,980 | $2M | 0.1% | 2025-Q4 |
| WOLVERINE ASSET MANAGEMENT LLC added | 52,086 | $2M | 0.1% | 2025-Q4 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 51,859 | $2M | 0.1% | 2025-Q4 |
| Cinctive Capital Management LP | 50,000 | $2M | 0.0% | 2025-Q4 |
| CREDIT INDUSTRIEL ET COMMERCIAL added | 46,936 | $2M | 0.0% | 2025-Q4 |
| Polar Asset Management Partners Inc. new | 46,888 | $2M | 0.0% | 2025-Q4 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC new | 46,600 | $2M | 0.0% | 2025-Q4 |
| Sagefield Capital LP new | 46,195 | $2M | 0.0% | 2025-Q4 |
| Villanova Investment Management Co LLC | 45,320 | $2M | 0.0% | 2025-Q4 |
| First Trust Capital Management L.P. new | 39,334 | $1M | 0.0% | 2025-Q4 |
| Aquatic Capital Management LLC new | 39,194 | $1M | 0.0% | 2025-Q4 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 38,262 | $1M | 0.0% | 2025-Q4 |
| Blackstone Inc. new | 37,053 | $1M | 0.0% | 2025-Q4 |
| AQR CAPITAL MANAGEMENT LLC new | 34,125 | $1M | 0.0% | 2025-Q4 |
| RAYMOND JAMES FINANCIAL INC added | 33,306 | $1M | 0.0% | 2025-Q4 |
| BANK OF AMERICA CORP /DE/ added | 32,595 | $1M | 0.0% | 2025-Q4 |
| Bank of New York Mellon Corp added | 32,487 | $1M | 0.0% | 2025-Q4 |
| AMERIPRISE FINANCIAL INC trimmed | 28,945 | $1M | 0.0% | 2025-Q4 |
| SG Americas Securities, LLC added | 26,677 | $990K | 0.0% | 2025-Q4 |
| Sterling Capital Management LLC added | 40,000 | $927K | 0.0% | 2026-Q2 (2 quarters ahead of as-of) |
| SummitTX Capital, L.P. new | 24,540 | $910K | 0.0% | 2025-Q4 |
| BARCLAYS PLC added | 23,999 | $890K | 0.0% | 2025-Q4 |
| Nuveen, LLC added | 23,013 | $854K | 0.0% | 2025-Q4 |
| OXFORD ASSET MANAGEMENT LLP trimmed | 22,399 | $831K | 0.0% | 2025-Q4 |
| Trexquant Investment LP new | 19,745 | $733K | 0.0% | 2025-Q4 |
| TWO SIGMA INVESTMENTS, LP | 19,222 | $713K | 0.0% | 2025-Q4 |
| WELLS FARGO & COMPANY/MN added | 17,050 | $633K | 0.0% | 2025-Q4 |
| RHUMBLINE ADVISERS trimmed | 16,938 | $628K | 0.0% | 2025-Q4 |
| CITADEL ADVISORS LLC trimmed | 16,813 | $624K | 0.0% | 2025-Q4 |
| Capital World Investors trimmed | 1,753,475 | $64M | 1.7% | 2025-Q3 stale (1 quarter behind) |
| AMERICAN CENTURY COMPANIES INC new | 1,151,791 | $36M | 0.9% | 2025-Q2 stale (2 quarters behind) |
| Capital International Investors new | 1,150,000 | $36M | 0.9% | 2025-Q2 stale (2 quarters behind) |
| Alyeska Investment Group, L.P. new | 849,024 | $27M | 0.7% | 2025-Q2 stale (2 quarters behind) |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ new | 755,408 | $24M | 0.6% | 2025-Q2 stale (2 quarters behind) |
| River Road Asset Management, LLC added | 579,134 | $21M | 0.6% | 2025-Q3 stale (1 quarter behind) |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC new | 523,682 | $16M | 0.4% | 2025-Q2 stale (2 quarters behind) |
| Philadelphia Financial Management of San Francisco, LLC new | 512,073 | $16M | 0.4% | 2025-Q2 stale (2 quarters behind) |
| Allspring Global Investments Holdings, LLC new | 498,274 | $16M | 0.4% | 2025-Q2 stale (2 quarters behind) |
| LOOMIS SAYLES & CO L P trimmed | 211,480 | $8M | 0.2% | 2025-Q3 stale (1 quarter behind) |
| ExodusPoint Capital Management, LP new | 238,493 | $8M | 0.2% | 2025-Q2 stale (2 quarters behind) |
| Ghisallo Capital Management LLC | 165,000 | $6M | 0.2% | 2025-Q3 stale (1 quarter behind) |
| Gillson Capital LP new | 150,000 | $5M | 0.1% | 2025-Q2 stale (2 quarters behind) |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 112,500 | $4M | 0.1% | 2025-Q3 stale (1 quarter behind) |
| SOROS FUND MANAGEMENT LLC new | 120,000 | $4M | 0.1% | 2025-Q2 stale (2 quarters behind) |
| Eisler Capital Management Ltd. new | 100,000 | $3M | 0.1% | 2025-Q2 stale (2 quarters behind) |
| SEVEN GRAND MANAGERS, LLC new | 60,000 | $2M | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Limestone Investment Advisors LP new | 60,000 | $2M | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Morningstar Investment Management LLC new | 49,491 | $2M | 0.0% | 2025-Q3 stale (1 quarter behind) |
| FRANKLIN RESOURCES INC new | 46,264 | $1M | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Longaeva Partners L.P. trimmed | 39,189 | $1M | 0.0% | 2025-Q3 stale (1 quarter behind) |
| Walleye Capital LLC added | 34,700 | $1M | 0.0% | 2025-Q3 stale (1 quarter behind) |
| Lighthouse Investment Partners, LLC new | 31,613 | $1M | 0.0% | 2025-Q3 stale (1 quarter behind) |
| Jain Global LLC new | 34,342 | $1M | 0.0% | 2025-Q2 stale (2 quarters behind) |
| TEACHER RETIREMENT SYSTEM OF TEXAS new | 30,000 | $944K | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Point72 Asset Management, L.P. new | 27,133 | $854K | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Interval Partners, LP new | 20,685 | $651K | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Pentwater Capital Management LP new | 20,000 | $629K | 0.0% | 2025-Q2 stale (2 quarters behind) |
| Sandia Investment Management LP new | 20,000 | $629K | 0.0% | 2025-Q2 stale (2 quarters behind) |
| COHEN & STEERS, INC. new | 20,000 | $629K | 0.0% | 2025-Q2 stale (2 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.