Who owns AR (AR)
Which tracked institutional funds hold AR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AR 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
289 tracked funds added or opened AR while 105 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
AR’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes AR more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AR 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 633 tracked filers holding AR, 382 increased or opened the position and 261 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 AR 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 65
- VANGUARD PORTFOLIO MANAGEMENT LLC$596M
- VANGUARD CAPITAL MANAGEMENT LLC$560M
- VANGUARD FIDUCIARY TRUST CO$77M
- FRONTIER CAPITAL MANAGEMENT CO LLC$57M
- Bornite Capital Management LP$44M
- Forest Avenue Capital Management LP$32M
Full exits 49
- VANGUARD GROUP INC$971M
- Ninepoint Partners LP$86M
- Capital Impact Advisors, LLC$40M
- CIBC Private Wealth Group LLC$26M
- Waratah Capital Advisors Ltd.$20M
- Driehaus Capital Management LLC$20M
Largest adds
- Invesco Ltd.$202M
- Orbis Allan Gray Ltd$181M
- FMR LLC$151M
- BlackRock, Inc.$144M
- DIMENSIONAL FUND ADVISORS LP$121M
- STATE STREET CORP$118M
Largest trims
- WELLINGTON MANAGEMENT GROUP LLP$188M
- Alyeska Investment Group, L.P.$48M
- Aventail Capital Group, LP$39M
- AMERIPRISE FINANCIAL INC$38M
- BALYASNY ASSET MANAGEMENT L.P.$35M
- D. E. Shaw & Co., Inc.$30M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 24,578,478 | $1.0B | 9.1% | 2026-Q1 |
| FMR LLC trimmed | 22,769,111 | $966M | 8.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 14,034,748 | $596M | 5.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 13,195,510 | $560M | 4.9% | 2026-Q1 |
| STATE STREET CORP added | 10,803,564 | $459M | 4.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 10,239,070 | $435M | 3.8% | 2026-Q1 |
| Invesco Ltd. added | 8,819,733 | $374M | 3.3% | 2026-Q1 |
| Sourcerock Group LLC trimmed | 8,305,886 | $353M | 3.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 5,629,099 | $239M | 2.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 5,470,754 | $232M | 2.0% | 2026-Q1 |
| Orbis Allan Gray Ltd added | 4,872,046 | $207M | 1.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 4,755,091 | $202M | 1.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 4,750,391 | $202M | 1.8% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 4,227,927 | $179M | 1.6% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 3,815,679 | $165M | 1.4% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 3,834,807 | $163M | 1.4% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 3,618,110 | $154M | 1.3% | 2026-Q1 |
| Assenagon Asset Management S.A. added | 3,611,248 | $153M | 1.3% | 2026-Q1 |
| MORGAN STANLEY added | 3,577,596 | $152M | 1.3% | 2026-Q1 |
| Bank of New York Mellon Corp added | 3,478,218 | $148M | 1.3% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 2,806,927 | $119M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 2,618,205 | $111M | 1.0% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 2,545,861 | $108M | 0.9% | 2026-Q1 |
| Eurizon Capital SGR S.p.A. added | 2,515,431 | $108M | 0.9% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 2,339,232 | $99M | 0.9% | 2026-Q1 |
| JUPITER ASSET MANAGEMENT LTD added | 2,265,082 | $96M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,251,381 | $96M | 0.8% | 2026-Q1 |
| Palo Duro Investment Partners, LP added | 2,115,112 | $90M | 0.8% | 2026-Q1 |
| UBS Group AG added | 1,942,148 | $82M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,821,686 | $77M | 0.7% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 1,765,305 | $75M | 0.7% | 2026-Q1 |
| DIAMOND HILL CAPITAL MANAGEMENT INC added | 1,705,804 | $72M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,622,714 | $69M | 0.6% | 2026-Q1 |
| Goehring & Rozencwajg Associates, LLC added | 1,617,138 | $69M | 0.6% | 2026-Q1 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. trimmed | 1,441,273 | $61M | 0.5% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC new | 1,349,237 | $57M | 0.5% | 2026-Q1 |
| Freestone Grove Partners LP trimmed | 1,347,024 | $57M | 0.5% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 1,294,639 | $55M | 0.5% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 1,257,191 | $53M | 0.5% | 2026-Q1 |
| SIR Capital Management, L.P. added | 1,244,157 | $53M | 0.5% | 2026-Q1 |
| Stephens Investment Management Group LLC trimmed | 1,180,915 | $50M | 0.4% | 2026-Q1 |
| Long Focus Capital Management, LLC trimmed | 1,170,000 | $50M | 0.4% | 2026-Q1 |
| Bornite Capital Management LP new | 1,040,000 | $44M | 0.4% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 1,007,801 | $43M | 0.4% | 2026-Q1 |
| GW&K Investment Management, LLC trimmed | 1,007,300 | $43M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,002,942 | $43M | 0.4% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 998,301 | $42M | 0.4% | 2026-Q1 |
| Gemsstock Ltd. added | 992,354 | $42M | 0.4% | 2026-Q1 |
| Merewether Investment Management, LP added | 951,200 | $40M | 0.4% | 2026-Q1 |
| Covalis Capital LLP added | 923,808 | $39M | 0.3% | 2026-Q1 |
| Webs Creek Capital Management LP trimmed | 906,328 | $38M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 883,135 | $37M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 833,677 | $37M | 0.3% | 2026-Q1 |
| SailingStone Capital Partners LLC trimmed | 844,266 | $36M | 0.3% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 838,068 | $36M | 0.3% | 2026-Q1 |
| DME Capital Management, LP trimmed | 808,520 | $34M | 0.3% | 2026-Q1 |
| Man Group plc added | 783,648 | $33M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 764,586 | $32M | 0.3% | 2026-Q1 |
| Forest Avenue Capital Management LP added | 748,300 | $32M | 0.3% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC added | 733,422 | $31M | 0.3% | 2026-Q1 |
| MetLife Investment Management, LLC added | 729,042 | $31M | 0.3% | 2026-Q1 |
| Retirement Systems of Alabama added | 717,223 | $30M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 708,945 | $30M | 0.3% | 2026-Q1 |
| Holocene Advisors, LP added | 708,417 | $30M | 0.3% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 696,642 | $30M | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 654,019 | $28M | 0.2% | 2026-Q1 |
| Old West Investment Management, LLC added | 648,322 | $28M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 636,064 | $27M | 0.2% | 2026-Q1 |
| Corigliano Investment Advisers, LLC trimmed | 617,800 | $26M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 602,984 | $26M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 580,300 | $25M | 0.2% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 566,367 | $24M | 0.2% | 2026-Q1 |
| CAPITAL FUND MANAGEMENT S.A. added | 562,982 | $24M | 0.2% | 2026-Q1 |
| Crystal Cove Asset Management, LLC new | 559,555 | $24M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 525,072 | $22M | 0.2% | 2026-Q1 |
| CWM, LLC added | 519,760 | $22M | 0.2% | 2026-Q1 |
| CLOUGH CAPITAL PARTNERS L P added | 503,153 | $21M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 501,768 | $21M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 500,825 | $21M | 0.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 493,800 | $21M | 0.2% | 2026-Q1 |
| S&CO INC added | 487,604 | $21M | 0.2% | 2026-Q1 |
| Pennant Investors, LP trimmed | 480,000 | $20M | 0.2% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 473,745 | $20M | 0.2% | 2026-Q1 |
| EverSource Wealth Advisors, LLC added | 284,382 | $20M | 0.2% | 2026-Q1 |
| Aristotle Atlantic Partners, LLC trimmed | 466,614 | $20M | 0.2% | 2026-Q1 |
| Horizon Investments, LLC added | 462,253 | $20M | 0.2% | 2026-Q1 |
| Hood River Capital Management LLC added | 461,353 | $20M | 0.2% | 2026-Q1 |
| Aventail Capital Group, LP trimmed | 461,148 | $20M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 28,185,335 | $971M | 8.4% | 2025-Q4 stale |
| 1832 Asset Management L.P. trimmed | 2,275,852 | $92M | 0.8% | 2025-Q1 stale |
| Ninepoint Partners LP added | 2,500,000 | $86M | 0.7% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 1,981,093 | $80M | 0.7% | 2025-Q2 stale |
| Slate Path Capital LP trimmed | 1,148,359 | $46M | 0.4% | 2025-Q2 stale |
| Yorktown Energy Partners VIII, L.P. trimmed | 1,100,000 | $44M | 0.4% | 2025-Q1 stale |
| Capital Impact Advisors, LLC added | 1,146,775 | $40M | 0.3% | 2025-Q4 stale |
| CIBC Private Wealth Group LLC trimmed | 753,091 | $26M | 0.2% | 2025-Q4 stale |
| Castle Hook Partners LP trimmed | 527,374 | $21M | 0.2% | 2025-Q2 stale |
| Waratah Capital Advisors Ltd. added | 590,000 | $20M | 0.2% | 2025-Q4 stale |
| Driehaus Capital Management LLC added | 583,249 | $20M | 0.2% | 2025-Q4 stale |
| NewEdge Wealth, LLC new | 583,110 | $20M | 0.2% | 2025-Q4 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.