Who owns ASO (ASO)
Which tracked institutional funds hold ASO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ASO company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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
116 tracked funds added or opened ASO while 63 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
ASO’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ASO 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
Between 2025-Q4 and 2026-Q1, across 358 tracked filers holding ASO, 185 increased or opened the position and 186 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ASO between the 2025-Q4 and 2026-Q1 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 24
- VANGUARD PORTFOLIO MANAGEMENT LLC$216M
- VANGUARD CAPITAL MANAGEMENT LLC$169M
- Maple Rock Capital Partners Inc.$47M
- VANGUARD FIDUCIARY TRUST CO$24M
- DEPRINCE RACE & ZOLLO INC$11M
- CANADA PENSION PLAN INVESTMENT BOARD$8M
Full exits 30
- VANGUARD GROUP INC$338M
- BWCP, LP$16M
- Brandywine Global Investment Management, LLC$11M
- Quantbot Technologies LP$6M
- Shellback Capital, LP$5M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$4M
Largest adds
- FMR LLC$64M
- MARSHALL WACE, LLP$31M
- DIMENSIONAL FUND ADVISORS LP$30M
- FRANKLIN RESOURCES INC$24M
- JANE STREET GROUP, LLC$22M
- AMERICAN CENTURY COMPANIES INC$22M
Largest trims
- BlackRock, Inc.$95M
- Point72 Asset Management, L.P.$70M
- Boston Partners$62M
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$27M
- MORGAN STANLEY$20M
- Ceredex Value Advisors LLC$16M
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 |
|---|---|---|---|---|
| FMR LLC trimmed | 9,981,441 | $563M | 13.1% | 2026-Q1 |
| BlackRock, Inc. trimmed | 7,024,930 | $397M | 9.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 4,029,262 | $227M | 5.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 3,832,602 | $216M | 5.0% | 2026-Q1 |
| LSV ASSET MANAGEMENT trimmed | 3,049,855 | $172M | 4.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,992,912 | $169M | 3.9% | 2026-Q1 |
| STATE STREET CORP trimmed | 2,664,266 | $151M | 3.5% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 2,399,131 | $135M | 3.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,094,839 | $118M | 2.8% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC trimmed | 1,602,998 | $90M | 2.1% | 2026-Q1 |
| KING LUTHER CAPITAL MANAGEMENT CORP trimmed | 1,552,297 | $88M | 2.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,078,021 | $61M | 1.4% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 1,041,038 | $59M | 1.4% | 2026-Q1 |
| Stephens Investment Management Group LLC trimmed | 1,004,905 | $57M | 1.3% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 924,080 | $52M | 1.2% | 2026-Q1 |
| Hood River Capital Management LLC trimmed | 907,187 | $51M | 1.2% | 2026-Q1 |
| Allianz Asset Management GmbH added | 861,360 | $49M | 1.1% | 2026-Q1 |
| Maple Rock Capital Partners Inc. new | 840,000 | $47M | 1.1% | 2026-Q1 |
| MARSHALL WACE, LLP added | 839,637 | $47M | 1.1% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 836,664 | $47M | 1.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 722,645 | $41M | 0.9% | 2026-Q1 |
| NORTHERN TRUST CORP added | 688,846 | $39M | 0.9% | 2026-Q1 |
| UBS Group AG added | 628,424 | $35M | 0.8% | 2026-Q1 |
| NORGES BANK added | 757,945 | $35M | 0.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 586,019 | $33M | 0.8% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 584,169 | $33M | 0.8% | 2026-Q1 |
| BESSEMER GROUP INC added | 543,102 | $31M | 0.7% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 533,108 | $30M | 0.7% | 2026-Q1 |
| GREATMARK INVESTMENT PARTNERS, INC. added | 526,047 | $30M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 491,073 | $28M | 0.6% | 2026-Q1 |
| CRAWFORD INVESTMENT COUNSEL INC trimmed | 456,895 | $26M | 0.6% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 438,513 | $25M | 0.6% | 2026-Q1 |
| Pacifica Capital Investments, LLC trimmed | 436,039 | $25M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 430,550 | $24M | 0.6% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 400,390 | $23M | 0.5% | 2026-Q1 |
| SEI INVESTMENTS CO added | 335,931 | $19M | 0.4% | 2026-Q1 |
| HEARTLAND ADVISORS INC added | 329,350 | $19M | 0.4% | 2026-Q1 |
| Hodges Capital Management Inc. added | 322,220 | $18M | 0.4% | 2026-Q1 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 313,457 | $18M | 0.4% | 2026-Q1 |
| Nuveen, LLC trimmed | 307,325 | $17M | 0.4% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 283,448 | $16M | 0.4% | 2026-Q1 |
| Hook Mill Capital Partners, LP added | 280,075 | $16M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 266,235 | $15M | 0.3% | 2026-Q1 |
| Baird Financial Group, Inc. added | 261,389 | $15M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 238,574 | $13M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 205,289 | $12M | 0.3% | 2026-Q1 |
| GLENMEDE TRUST CO NA trimmed | 193,677 | $11M | 0.3% | 2026-Q1 |
| DEPRINCE RACE & ZOLLO INC new | 193,450 | $11M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 192,650 | $11M | 0.3% | 2026-Q1 |
| Cinctive Capital Management LP added | 179,000 | $10M | 0.2% | 2026-Q1 |
| Ceredex Value Advisors LLC trimmed | 173,150 | $10M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 164,366 | $9M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 164,288 | $9M | 0.2% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 157,303 | $9M | 0.2% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC trimmed | 156,868 | $9M | 0.2% | 2026-Q1 |
| Clearbridge Investments, LLC added | 154,133 | $9M | 0.2% | 2026-Q1 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 152,750 | $9M | 0.2% | 2026-Q1 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. added | 151,679 | $9M | 0.2% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 150,400 | $8M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 147,534 | $8M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 136,710 | $8M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 134,941 | $8M | 0.2% | 2026-Q1 |
| Swiss National Bank | 131,500 | $7M | 0.2% | 2026-Q1 |
| Bridgewater Associates, LP trimmed | 125,700 | $7M | 0.2% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 124,121 | $7M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 122,674 | $7M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 120,072 | $7M | 0.2% | 2026-Q1 |
| Focus Partners Wealth added | 109,881 | $6M | 0.1% | 2026-Q1 |
| Aviance Capital Partners, LLC added | 109,161 | $6M | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 108,956 | $6M | 0.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 104,697 | $6M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 103,896 | $6M | 0.1% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed | 101,847 | $6M | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 100,103 | $6M | 0.1% | 2026-Q1 |
| Creative Planning added | 97,804 | $6M | 0.1% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 95,073 | $5M | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 93,400 | $5M | 0.1% | 2026-Q1 |
| Dupree Financial Group, LLC added | 90,170 | $5M | 0.1% | 2026-Q1 |
| THOMPSON SIEGEL & WALMSLEY LLC trimmed | 89,146 | $5M | 0.1% | 2026-Q1 |
| Walleye Capital LLC added | 87,336 | $5M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 80,115 | $5M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 6,756,617 | $338M | 7.9% | 2025-Q4 stale |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 1,326,270 | $66M | 1.5% | 2025-Q3 stale |
| Junto Capital Management LP new | 731,044 | $37M | 0.9% | 2025-Q3 stale |
| MACQUARIE GROUP LTD added | 467,432 | $23M | 0.5% | 2025-Q3 stale |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 521,113 | $23M | 0.5% | 2025-Q2 stale |
| BWCP, LP trimmed | 328,281 | $16M | 0.4% | 2025-Q4 stale |
| Penn Capital Management Company, LLC added | 265,661 | $12M | 0.3% | 2025-Q2 stale |
| Voss Capital, LP trimmed | 260,778 | $12M | 0.3% | 2025-Q1 stale |
| Brandywine Global Investment Management, LLC trimmed | 224,013 | $11M | 0.3% | 2025-Q4 stale |
| Glenmede Investment Management, LP trimmed | 218,638 | $11M | 0.3% | 2025-Q3 stale |
| Ranmore Fund Management Ltd new | 220,000 | $10M | 0.2% | 2025-Q2 stale |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp trimmed | 181,362 | $8M | 0.2% | 2025-Q1 stale |
| Quantbot Technologies LP added | 113,359 | $6M | 0.1% | 2025-Q4 stale |
| AXA Investment Managers S.A. new | 107,543 | $5M | 0.1% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 117,200 | $5M | 0.1% | 2025-Q1 stale |
| Shellback Capital, LP trimmed | 105,566 | $5M | 0.1% | 2025-Q4 stale |
| Divisadero Street Capital Management, LP | 100,000 | $5M | 0.1% | 2025-Q3 stale |
| AXA S.A. added | 107,543 | $5M | 0.1% | 2025-Q2 stale |
| LOOMIS SAYLES & CO L P trimmed | 96,086 | $5M | 0.1% | 2025-Q3 stale |
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.