Who owns MLCO (MLCO)
Which tracked institutional funds hold MLCO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MLCO 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
The tracked-fund tape on MLCO is one-sided between 2025-Q4 and 2026-Q1: 19 added or opened and 57 trimmed or exited — on balance reducing.
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
MLCO’s largest tracked holder by dollar value, ARGA Investment Management, LP, sizes it at 2.7% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 2.7pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MLCO 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 161 tracked filers holding MLCO, 71 increased or opened the position and 96 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 MLCO 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 7
- CAPITOLIS LIQUID GLOBAL MARKETS LLC$7M
- JANE STREET GROUP, LLC$3M
- CenterBook Partners LP$2M
- JUPITER ASSET MANAGEMENT LTD$2M
- Capula Management Ltd$1M
- TORONTO DOMINION BANK$893K
Full exits 14
- Balyasny Asset Management L.P.$29M
- VICTORY CAPITAL MANAGEMENT INC$18M
- Capitolis Liquid Global Markets LLC$9M
- CLOUGH CAPITAL PARTNERS L P$8M
- BRIGHTLIGHT CAPITAL MANAGEMENT LP$8M
- MARSHALL WACE, LLP$5M
Largest adds
- FIL Ltd$18M
- D. E. Shaw & Co., Inc.$5M
- BANK OF AMERICA CORP /DE/$3M
- BlackRock, Inc.$2M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$2M
- UBS Group AG$2M
Largest trims
- ARGA Investment Management, LP$91M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$18M
- CITADEL ADVISORS LLC$15M
- MORGAN STANLEY$14M
- NATIONAL BANK OF CANADA /FI/$12M
- Point72 Asset Management, L.P.$11M
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 |
|---|---|---|---|---|
| ARGA Investment Management, LP trimmed | 14,508,114 | $82M | 9.7% | 2026-Q1 |
| Coronation Fund Managers Ltd. added | 11,269,346 | $64M | 7.5% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 11,066,937 | $63M | 7.4% | 2026-Q1 |
| FIL Ltd added | 9,431,944 | $54M | 6.3% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 9,022,361 | $51M | 6.0% | 2026-Q1 |
| BlackRock, Inc. added | 8,496,908 | $48M | 5.7% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 4,461,600 | $25M | 3.0% | 2026-Q1 |
| UBS Group AG added | 4,201,006 | $24M | 2.8% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 4,150,076 | $24M | 2.8% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC trimmed | 3,894,734 | $22M | 2.5% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 3,891,606 | $22M | 2.5% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,615,117 | $15M | 1.7% | 2026-Q1 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 1,797,254 | $10M | 1.2% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 1,708,738 | $10M | 1.1% | 2026-Q1 |
| STATE STREET CORP trimmed | 1,612,013 | $9M | 1.1% | 2026-Q1 |
| SEI INVESTMENTS CO trimmed | 1,400,430 | $8M | 0.9% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,269,782 | $7M | 0.8% | 2026-Q1 |
| CAPITOLIS LIQUID GLOBAL MARKETS LLC new | 1,216,000 | $7M | 0.8% | 2026-Q1 |
| DEUTSCHE BANK AG\ | 1,139,569 | $6M | 0.8% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 1,037,353 | $6M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 890,787 | $5M | 0.6% | 2026-Q1 |
| RBF Capital, LLC trimmed | 650,000 | $4M | 0.4% | 2026-Q1 |
| BRIDGER MANAGEMENT, LLC | 522,966 | $3M | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 496,151 | $3M | 0.3% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 479,257 | $3M | 0.3% | 2026-Q1 |
| Bleakley Financial Group, LLC added | 461,487 | $3M | 0.3% | 2026-Q1 |
| SG Americas Securities, LLC added | 461,100 | $3M | 0.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 391,781 | $2M | 0.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 381,035 | $2M | 0.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 362,918 | $2M | 0.2% | 2026-Q1 |
| Trexquant Investment LP trimmed | 354,252 | $2M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 332,772 | $2M | 0.2% | 2026-Q1 |
| CenterBook Partners LP new | 324,298 | $2M | 0.2% | 2026-Q1 |
| JUPITER ASSET MANAGEMENT LTD new | 320,600 | $2M | 0.2% | 2026-Q1 |
| LORD, ABBETT & CO. LLC trimmed | 315,000 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank | 309,347 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 309,341 | $2M | 0.2% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 308,190 | $2M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 288,995 | $2M | 0.2% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 274,618 | $2M | 0.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 267,990 | $2M | 0.2% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 236,630 | $1M | 0.2% | 2026-Q1 |
| Capula Management Ltd added | 233,385 | $1M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 220,368 | $1M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 163,952 | $931K | 0.1% | 2026-Q1 |
| TORONTO DOMINION BANK added | 157,291 | $893K | 0.1% | 2026-Q1 |
| Numerai GP LLC added | 152,163 | $864K | 0.1% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 144,093 | $818K | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 140,500 | $798K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 139,849 | $794K | 0.1% | 2026-Q1 |
| Samalin Investment Counsel, LLC added | 138,773 | $788K | 0.1% | 2026-Q1 |
| Nuveen, LLC | 133,800 | $760K | 0.1% | 2026-Q1 |
| Mariner, LLC added | 132,657 | $753K | 0.1% | 2026-Q1 |
| Jump Financial, LLC trimmed | 130,307 | $740K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 125,541 | $713K | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 115,835 | $658K | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC added | 108,139 | $614K | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 106,253 | $604K | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 100,704 | $572K | 0.1% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 73,008 | $415K | 0.0% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 69,500 | $395K | 0.0% | 2026-Q1 |
| Campbell & CO Investment Adviser LLC trimmed | 67,892 | $386K | 0.0% | 2026-Q1 |
| Capital Research Global Investors trimmed | 15,289,672 | $81M | 9.5% | 2025-Q1 stale |
| Balyasny Asset Management L.P. added | 3,864,347 | $29M | 3.4% | 2025-Q4 stale |
| VICTORY CAPITAL MANAGEMENT INC added | 2,351,536 | $18M | 2.1% | 2025-Q4 stale |
| Solel Partners LP | 1,328,000 | $10M | 1.1% | 2025-Q2 stale |
| Capitolis Liquid Global Markets LLC new | 1,216,000 | $9M | 1.1% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC trimmed | 947,108 | $9M | 1.0% | 2025-Q3 stale |
| CLOUGH CAPITAL PARTNERS L P added | 1,120,920 | $8M | 1.0% | 2025-Q4 stale |
| BRIGHTLIGHT CAPITAL MANAGEMENT LP trimmed | 1,070,400 | $8M | 1.0% | 2025-Q4 stale |
| MARSHALL WACE, LLP trimmed | 723,722 | $5M | 0.6% | 2025-Q4 stale |
| Hudson Bay Capital Management LP trimmed | 707,981 | $5M | 0.6% | 2025-Q4 stale |
| Jain Global LLC new | 878,566 | $5M | 0.5% | 2025-Q1 stale |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 606,063 | $5M | 0.5% | 2025-Q4 stale |
| CANADA PENSION PLAN INVESTMENT BOARD added | 591,000 | $4M | 0.5% | 2025-Q2 stale |
| Capital Wealth Planning, LLC added | 451,089 | $4M | 0.5% | 2025-Q3 stale |
| CAXTON ASSOCIATES LLP new | 400,959 | $4M | 0.4% | 2025-Q3 stale |
| Point72 Hong Kong Ltd trimmed | 305,334 | $3M | 0.3% | 2025-Q3 stale |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 441,678 | $2M | 0.3% | 2025-Q1 stale |
| NATIXIS ADVISORS, LLC new | 206,559 | $2M | 0.2% | 2025-Q3 stale |
| Quantbot Technologies LP added | 190,838 | $2M | 0.2% | 2025-Q3 stale |
| Susquehanna Portfolio Strategies, LLC new | 161,337 | $1M | 0.2% | 2025-Q3 stale |
| LAZARD ASSET MANAGEMENT LLC added | 189,401 | $1M | 0.2% | 2025-Q4 stale |
| State of New Jersey Common Pension Fund D trimmed | 163,279 | $1M | 0.1% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP trimmed | 161,600 | $1M | 0.1% | 2025-Q4 stale |
| MAPLELANE CAPITAL, LLC added | 225,000 | $1M | 0.1% | 2025-Q1 stale |
| VANGUARD GROUP INC trimmed | 143,922 | $1M | 0.1% | 2025-Q4 stale |
| LPL Financial LLC added | 87,788 | $805K | 0.1% | 2025-Q3 stale |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 96,558 | $731K | 0.1% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC added | 78,385 | $719K | 0.1% | 2025-Q3 stale |
| Long Corridor Asset Management Ltd new | 136,194 | $718K | 0.1% | 2025-Q1 stale |
| MCDONALD PARTNERS LLC trimmed | 92,086 | $666K | 0.1% | 2025-Q2 stale |
| IMC-Chicago, LLC trimmed | 88,950 | $643K | 0.1% | 2025-Q2 stale |
| Russell Investments Group, Ltd. trimmed | 83,847 | $635K | 0.1% | 2025-Q4 stale |
| SIMPLEX TRADING, LLC added | 67,421 | $618K | 0.1% | 2025-Q3 stale |
| XTX Topco Ltd added | 103,803 | $547K | 0.1% | 2025-Q1 stale |
| Pinpoint Asset Management Ltd added | 95,758 | $505K | 0.1% | 2025-Q1 stale |
| MACKENZIE FINANCIAL CORP added | 64,404 | $489K | 0.1% | 2025-Q4 stale |
| Entropy Technologies, LP added | 47,605 | $437K | 0.1% | 2025-Q3 stale |
| OMERS ADMINISTRATION Corp added | 47,470 | $435K | 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.