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Institutional Ownership · SEC Form 13F

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.

633
Institutional holders
268,694,041
Shares held (tracked funds)
87.1%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed24,578,478$1.0B9.1%2026-Q1
FMR LLC trimmed22,769,111$966M8.4%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new14,034,748$596M5.2%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new13,195,510$560M4.9%2026-Q1
STATE STREET CORP added10,803,564$459M4.0%2026-Q1
DIMENSIONAL FUND ADVISORS LP added10,239,070$435M3.8%2026-Q1
Invesco Ltd. added8,819,733$374M3.3%2026-Q1
Sourcerock Group LLC trimmed8,305,886$353M3.1%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added5,629,099$239M2.1%2026-Q1
AQR CAPITAL MANAGEMENT LLC added5,470,754$232M2.0%2026-Q1
Orbis Allan Gray Ltd added4,872,046$207M1.8%2026-Q1
WELLINGTON MANAGEMENT GROUP LLP trimmed4,755,091$202M1.8%2026-Q1
GOLDMAN SACHS GROUP INC added4,750,391$202M1.8%2026-Q1
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added4,227,927$179M1.6%2026-Q1
RAYMOND JAMES FINANCIAL INC trimmed3,815,679$165M1.4%2026-Q1
NEUBERGER BERMAN GROUP LLC added3,834,807$163M1.4%2026-Q1
ADAGE CAPITAL PARTNERS GP, L.L.C. added3,618,110$154M1.3%2026-Q1
Assenagon Asset Management S.A. added3,611,248$153M1.3%2026-Q1
MORGAN STANLEY added3,577,596$152M1.3%2026-Q1
Bank of New York Mellon Corp added3,478,218$148M1.3%2026-Q1
Qube Research & Technologies Ltd added2,806,927$119M1.0%2026-Q1
NORTHERN TRUST CORP added2,618,205$111M1.0%2026-Q1
D. E. Shaw & Co., Inc. trimmed2,545,861$108M0.9%2026-Q1
Eurizon Capital SGR S.p.A. added2,515,431$108M0.9%2026-Q1
CANADA PENSION PLAN INVESTMENT BOARD added2,339,232$99M0.9%2026-Q1
JUPITER ASSET MANAGEMENT LTD added2,265,082$96M0.8%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added2,251,381$96M0.8%2026-Q1
Palo Duro Investment Partners, LP added2,115,112$90M0.8%2026-Q1
UBS Group AG added1,942,148$82M0.7%2026-Q1
VANGUARD FIDUCIARY TRUST CO new1,821,686$77M0.7%2026-Q1
FIRST TRUST ADVISORS LP added1,765,305$75M0.7%2026-Q1
DIAMOND HILL CAPITAL MANAGEMENT INC added1,705,804$72M0.6%2026-Q1
CITADEL ADVISORS LLC added1,622,714$69M0.6%2026-Q1
Goehring & Rozencwajg Associates, LLC added1,617,138$69M0.6%2026-Q1
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. trimmed1,441,273$61M0.5%2026-Q1
FRONTIER CAPITAL MANAGEMENT CO LLC new1,349,237$57M0.5%2026-Q1
Freestone Grove Partners LP trimmed1,347,024$57M0.5%2026-Q1
Squarepoint Ops LLC trimmed1,294,639$55M0.5%2026-Q1
FRANKLIN RESOURCES INC added1,257,191$53M0.5%2026-Q1
SIR Capital Management, L.P. added1,244,157$53M0.5%2026-Q1
Stephens Investment Management Group LLC trimmed1,180,915$50M0.4%2026-Q1
Long Focus Capital Management, LLC trimmed1,170,000$50M0.4%2026-Q1
Bornite Capital Management LP new1,040,000$44M0.4%2026-Q1
VICTORY CAPITAL MANAGEMENT INC trimmed1,007,801$43M0.4%2026-Q1
GW&K Investment Management, LLC trimmed1,007,300$43M0.4%2026-Q1
BANK OF AMERICA CORP /DE/ added1,002,942$43M0.4%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ added998,301$42M0.4%2026-Q1
Gemsstock Ltd. added992,354$42M0.4%2026-Q1
Merewether Investment Management, LP added951,200$40M0.4%2026-Q1
Covalis Capital LLP added923,808$39M0.3%2026-Q1
Webs Creek Capital Management LP trimmed906,328$38M0.3%2026-Q1
Nuveen, LLC trimmed883,135$37M0.3%2026-Q1
JPMORGAN CHASE & CO trimmed833,677$37M0.3%2026-Q1
SailingStone Capital Partners LLC trimmed844,266$36M0.3%2026-Q1
DEUTSCHE BANK AG\ added838,068$36M0.3%2026-Q1
DME Capital Management, LP trimmed808,520$34M0.3%2026-Q1
Man Group plc added783,648$33M0.3%2026-Q1
RHUMBLINE ADVISERS added764,586$32M0.3%2026-Q1
Forest Avenue Capital Management LP added748,300$32M0.3%2026-Q1
LAZARD ASSET MANAGEMENT LLC added733,422$31M0.3%2026-Q1
MetLife Investment Management, LLC added729,042$31M0.3%2026-Q1
Retirement Systems of Alabama added717,223$30M0.3%2026-Q1
AMERIPRISE FINANCIAL INC trimmed708,945$30M0.3%2026-Q1
Holocene Advisors, LP added708,417$30M0.3%2026-Q1
ALGERT GLOBAL LLC added696,642$30M0.3%2026-Q1
PRINCIPAL FINANCIAL GROUP INC added654,019$28M0.2%2026-Q1
Old West Investment Management, LLC added648,322$28M0.2%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. trimmed636,064$27M0.2%2026-Q1
Corigliano Investment Advisers, LLC trimmed617,800$26M0.2%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added602,984$26M0.2%2026-Q1
Swiss National Bank added580,300$25M0.2%2026-Q1
T. Rowe Price Investment Management, Inc. added566,367$24M0.2%2026-Q1
CAPITAL FUND MANAGEMENT S.A. added562,982$24M0.2%2026-Q1
Crystal Cove Asset Management, LLC new559,555$24M0.2%2026-Q1
California Public Employees Retirement System added525,072$22M0.2%2026-Q1
CWM, LLC added519,760$22M0.2%2026-Q1
CLOUGH CAPITAL PARTNERS L P added503,153$21M0.2%2026-Q1
Russell Investments Group, Ltd. added501,768$21M0.2%2026-Q1
Legal & General Group Plc trimmed500,825$21M0.2%2026-Q1
RENAISSANCE TECHNOLOGIES LLC trimmed493,800$21M0.2%2026-Q1
S&CO INC added487,604$21M0.2%2026-Q1
Pennant Investors, LP trimmed480,000$20M0.2%2026-Q1
Universal- Beteiligungs- und Servicegesellschaft mbH trimmed473,745$20M0.2%2026-Q1
EverSource Wealth Advisors, LLC added284,382$20M0.2%2026-Q1
Aristotle Atlantic Partners, LLC trimmed466,614$20M0.2%2026-Q1
Horizon Investments, LLC added462,253$20M0.2%2026-Q1
Hood River Capital Management LLC added461,353$20M0.2%2026-Q1
Aventail Capital Group, LP trimmed461,148$20M0.2%2026-Q1
VANGUARD GROUP INC trimmed28,185,335$971M8.4%2025-Q4 stale
1832 Asset Management L.P. trimmed2,275,852$92M0.8%2025-Q1 stale
Ninepoint Partners LP added2,500,000$86M0.7%2025-Q4 stale
VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed1,981,093$80M0.7%2025-Q2 stale
Slate Path Capital LP trimmed1,148,359$46M0.4%2025-Q2 stale
Yorktown Energy Partners VIII, L.P. trimmed1,100,000$44M0.4%2025-Q1 stale
Capital Impact Advisors, LLC added1,146,775$40M0.3%2025-Q4 stale
CIBC Private Wealth Group LLC trimmed753,091$26M0.2%2025-Q4 stale
Castle Hook Partners LP trimmed527,374$21M0.2%2025-Q2 stale
Waratah Capital Advisors Ltd. added590,000$20M0.2%2025-Q4 stale
Driehaus Capital Management LLC added583,249$20M0.2%2025-Q4 stale
NewEdge Wealth, LLC new583,110$20M0.2%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.

HoldersTotal shares

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.

Learn how to read institutional ownership