Who owns ARCO (ARCO)
Which tracked institutional funds hold ARCO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ARCO 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
49 tracked funds added or opened ARCO while 26 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
ARCO’s largest tracked holder by dollar value, LAZARD ASSET MANAGEMENT LLC, sizes it at 0.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ARCO 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 160 tracked filers holding ARCO, 77 increased or opened the position and 80 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 ARCO 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 9
- LORD, ABBETT & CO. LLC$15M
- Fundamenta Capital S.A.$8M
- MIRABELLA FINANCIAL SERVICES LLP$3M
- Atom Investors LP$1M
- Value Investment Professionals, LLC$923K
- ABS Direct Equity Fund LLC$907K
Full exits 11
- Emeth Value Capital, LLC$8M
- Hedges Asset Management LLC$2M
- PRICE T ROWE ASSOCIATES INC /MD/$2M
- Handelsbanken Fonder AB$2M
- American Trust Investment Advisors, LLC$2M
- Absolute Gestao de Investimentos Ltda.$1M
Largest adds
- LAZARD ASSET MANAGEMENT LLC$34M
- SEI INVESTMENTS CO$18M
- PZENA INVESTMENT MANAGEMENT LLC$11M
- Moerus Capital Management LLC$9M
- MORGAN STANLEY$5M
- HRT FINANCIAL LP$5M
Largest trims
- SPX Gestao de Recursos Ltda$6M
- CITADEL ADVISORS LLC$5M
- GOLDMAN SACHS GROUP INC$5M
- RENAISSANCE TECHNOLOGIES LLC$3M
- D. E. Shaw & Co., Inc.$1M
- Qube Research & Technologies Ltd$1M
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 |
|---|---|---|---|---|
| LAZARD ASSET MANAGEMENT LLC added | 23,174,841 | $191M | 21.0% | 2026-Q1 |
| PZENA INVESTMENT MANAGEMENT LLC added | 10,741,166 | $89M | 9.7% | 2026-Q1 |
| SPX Gestao de Recursos Ltda trimmed | 5,949,286 | $49M | 5.4% | 2026-Q1 |
| Moerus Capital Management LLC added | 4,263,589 | $35M | 3.9% | 2026-Q1 |
| MORGAN STANLEY added | 4,182,416 | $35M | 3.8% | 2026-Q1 |
| SEI INVESTMENTS CO added | 3,483,732 | $29M | 3.2% | 2026-Q1 |
| PRIVATE MANAGEMENT GROUP INC trimmed | 3,355,886 | $28M | 3.0% | 2026-Q1 |
| BRIGHTLIGHT CAPITAL MANAGEMENT LP trimmed | 3,334,760 | $28M | 3.0% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 2,810,198 | $23M | 2.5% | 2026-Q1 |
| LORD, ABBETT & CO. LLC added | 1,800,000 | $15M | 1.6% | 2026-Q1 |
| MANAGED ASSET PORTFOLIOS, LLC added | 1,545,075 | $13M | 1.4% | 2026-Q1 |
| State of New Jersey Common Pension Fund D | 1,486,822 | $12M | 1.3% | 2026-Q1 |
| Perpetual Ltd trimmed | 1,434,814 | $12M | 1.3% | 2026-Q1 |
| Invesco Ltd. added | 1,073,352 | $9M | 1.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,002,010 | $8M | 0.9% | 2026-Q1 |
| GENERAL AMERICAN INVESTORS CO INC | 950,178 | $8M | 0.9% | 2026-Q1 |
| Fundamenta Capital S.A. new | 938,239 | $8M | 0.8% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS | 818,810 | $7M | 0.7% | 2026-Q1 |
| GLOBEFLEX CAPITAL L P | 815,609 | $7M | 0.7% | 2026-Q1 |
| Boston Partners added | 776,184 | $6M | 0.7% | 2026-Q1 |
| Clearbridge Investments, LLC trimmed | 768,752 | $6M | 0.7% | 2026-Q1 |
| Amundi trimmed | 733,120 | $6M | 0.7% | 2026-Q1 |
| INCA Investments LLC trimmed | 654,392 | $5M | 0.6% | 2026-Q1 |
| O'Keefe Stevens Advisory, Inc. added | 631,729 | $5M | 0.6% | 2026-Q1 |
| HRT FINANCIAL LP added | 615,164 | $5M | 0.6% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 545,587 | $5M | 0.5% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 542,826 | $4M | 0.5% | 2026-Q1 |
| TimesSquare Capital Management, LLC trimmed | 538,652 | $4M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 537,449 | $4M | 0.5% | 2026-Q1 |
| THOMPSON SIEGEL & WALMSLEY LLC added | 530,300 | $4M | 0.5% | 2026-Q1 |
| Rockefeller Capital Management L.P. added | 524,992 | $4M | 0.5% | 2026-Q1 |
| UBS Group AG added | 520,183 | $4M | 0.5% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 487,008 | $4M | 0.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 473,129 | $4M | 0.4% | 2026-Q1 |
| AUXIER ASSET MANAGEMENT LLC added | 419,547 | $3M | 0.4% | 2026-Q1 |
| CITIGROUP INC added | 406,571 | $3M | 0.4% | 2026-Q1 |
| Seafarer Capital Partners, LLC | 400,000 | $3M | 0.4% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 391,305 | $3M | 0.4% | 2026-Q1 |
| MIRABELLA FINANCIAL SERVICES LLP added | 388,112 | $3M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 387,613 | $3M | 0.4% | 2026-Q1 |
| Inlet Private Wealth, LLC trimmed | 378,888 | $3M | 0.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 351,129 | $3M | 0.3% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 342,983 | $3M | 0.3% | 2026-Q1 |
| PDT Partners, LLC | 330,780 | $3M | 0.3% | 2026-Q1 |
| SAPIENT CAPITAL LLC | 245,501 | $2M | 0.2% | 2026-Q1 |
| Bleakley Financial Group, LLC added | 234,460 | $2M | 0.2% | 2026-Q1 |
| ACORN FINANCIAL ADVISORY SERVICES INC /ADV trimmed | 218,167 | $2M | 0.2% | 2026-Q1 |
| Black Creek Investment Management Inc. trimmed | 206,000 | $2M | 0.2% | 2026-Q1 |
| American Capital Advisory, LLC trimmed | 185,836 | $2M | 0.2% | 2026-Q1 |
| Catalyst Capital Advisors LLC | 182,090 | $2M | 0.2% | 2026-Q1 |
| VELA Investment Management, LLC added | 167,400 | $1M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 163,297 | $1M | 0.1% | 2026-Q1 |
| Atom Investors LP trimmed | 162,848 | $1M | 0.1% | 2026-Q1 |
| CLOUGH CAPITAL PARTNERS L P added | 159,410 | $1M | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 137,509 | $1M | 0.1% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 134,014 | $1M | 0.1% | 2026-Q1 |
| Trexquant Investment LP trimmed | 129,205 | $1M | 0.1% | 2026-Q1 |
| Ruffer LLP | 127,142 | $1M | 0.1% | 2026-Q1 |
| DELTEC ASSET MANAGEMENT LLC trimmed | 120,400 | $993K | 0.1% | 2026-Q1 |
| DODGE & COX | 112,966 | $932K | 0.1% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 112,328 | $927K | 0.1% | 2026-Q1 |
| Value Investment Professionals, LLC new | 54,190 | $923K | 0.1% | 2026-Q1 |
| ABS Direct Equity Fund LLC new | 109,882 | $907K | 0.1% | 2026-Q1 |
| West Tower Group, LLC trimmed | 109,859 | $906K | 0.1% | 2026-Q1 |
| HUSSMAN STRATEGIC ADVISORS, INC. | 105,000 | $866K | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP trimmed | 101,280 | $836K | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 100,652 | $830K | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 93,832 | $774K | 0.1% | 2026-Q1 |
| Magnetar Financial LLC added | 90,332 | $745K | 0.1% | 2026-Q1 |
| XTX Topco Ltd trimmed | 85,989 | $709K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 83,739 | $691K | 0.1% | 2026-Q1 |
| FIDELIS CAPITAL PARTNERS, LLC | 75,000 | $619K | 0.1% | 2026-Q1 |
| CenterBook Partners LP trimmed | 74,701 | $616K | 0.1% | 2026-Q1 |
| Nuveen, LLC trimmed | 9,836,937 | $78M | 8.5% | 2025-Q2 stale |
| Fourth Sail Capital LP added | 3,318,350 | $27M | 2.9% | 2025-Q1 stale |
| Medina Value Partners, LLC added | 1,649,277 | $13M | 1.5% | 2025-Q1 stale |
| ALTA FOX CAPITAL MANAGEMENT, LLC new | 1,120,700 | $9M | 1.0% | 2025-Q1 stale |
| Emeth Value Capital, LLC trimmed | 1,045,701 | $8M | 0.8% | 2025-Q4 stale |
| Fiera Capital Corp trimmed | 666,246 | $5M | 0.6% | 2025-Q1 stale |
| Mirae Asset Global Investments Co., Ltd. trimmed | 476,537 | $4M | 0.4% | 2025-Q1 stale |
| Cubist Systematic Strategies, LLC added | 425,746 | $3M | 0.4% | 2025-Q2 stale |
| TWO SIGMA INVESTMENTS, LP added | 314,672 | $3M | 0.3% | 2025-Q1 stale |
| Hedges Asset Management LLC trimmed | 287,900 | $2M | 0.2% | 2025-Q4 stale |
| PRICE T ROWE ASSOCIATES INC /MD/ | 263,307 | $2M | 0.2% | 2025-Q4 stale |
| DIAMOND HILL CAPITAL MANAGEMENT INC added | 234,596 | $2M | 0.2% | 2025-Q1 stale |
| Handelsbanken Fonder AB | 240,928 | $2M | 0.2% | 2025-Q4 stale |
| American Trust Investment Advisors, LLC added | 209,313 | $2M | 0.2% | 2025-Q4 stale |
| RENAISSANCE GROUP LLC trimmed | 189,235 | $1M | 0.2% | 2025-Q2 stale |
| Epoch Investment Partners, Inc. new | 179,731 | $1M | 0.2% | 2025-Q2 stale |
| Nebula Research & Development LLC added | 166,767 | $1M | 0.1% | 2025-Q2 stale |
| Long Focus Capital Management, LLC | 150,000 | $1M | 0.1% | 2025-Q1 stale |
| Absolute Gestao de Investimentos Ltda. trimmed | 154,584 | $1M | 0.1% | 2025-Q4 stale |
| Balyasny Asset Management L.P. added | 145,111 | $1M | 0.1% | 2025-Q4 stale |
| RWA WEALTH PARTNERS, LLC new | 100,000 | $789K | 0.1% | 2025-Q2 stale |
| Verition Fund Management LLC trimmed | 105,385 | $774K | 0.1% | 2025-Q4 stale |
| Penn Mutual Asset Management | 106,000 | $716K | 0.1% | 2025-Q3 stale |
| Schonfeld Strategic Advisors LLC trimmed | 94,706 | $695K | 0.1% | 2025-Q4 stale |
| Harbour Capital Advisors, LLC trimmed | 84,520 | $659K | 0.1% | 2025-Q2 stale |
| Optimize Financial Inc added | 86,291 | $633K | 0.1% | 2025-Q4 stale |
| Banco BTG Pactual S.A. trimmed | 79,700 | $629K | 0.1% | 2025-Q2 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.