Who owns MCBS (MCBS)
Which tracked institutional funds hold MCBS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MCBS 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
19 tracked funds added or opened MCBS while 7 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
MCBS’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 0.0% 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 MCBS 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 110 tracked filers holding MCBS, 66 increased or opened the position and 35 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 MCBS 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 4
- VANGUARD CAPITAL MANAGEMENT LLC$25M
- VANGUARD FIDUCIARY TRUST CO$4M
- VANGUARD PORTFOLIO MANAGEMENT LLC$4M
- RENAISSANCE TECHNOLOGIES LLC$1M
Full exits 2
- VANGUARD GROUP INC$25M
- JANE STREET GROUP, LLC$519K
Largest adds
- BlackRock, Inc.$6M
- AMERICAN CENTURY COMPANIES INC$3M
- GEODE CAPITAL MANAGEMENT, LLC$3M
- GOLDMAN SACHS GROUP INC$3M
- STATE STREET CORP$2M
- DIMENSIONAL FUND ADVISORS LP$2M
Largest trims
- LOS ANGELES CAPITAL MANAGEMENT LLC$1M
- BARCLAYS PLC$795K
- BANK OF AMERICA CORP /DE/$438K
- WELLS FARGO & COMPANY/MN$339K
- Sherrill & Hutchins Financial Advisory, Inc$318K
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. added | 1,503,240 | $43M | 18.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 878,195 | $25M | 10.9% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 625,052 | $18M | 7.8% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 518,374 | $15M | 6.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 498,788 | $14M | 6.2% | 2026-Q1 |
| STATE STREET CORP added | 474,280 | $14M | 5.9% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 220,552 | $6M | 2.7% | 2026-Q1 |
| NORTHERN TRUST CORP added | 209,905 | $6M | 2.6% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 178,014 | $5M | 2.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 159,651 | $5M | 2.0% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 135,868 | $4M | 1.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 129,779 | $4M | 1.6% | 2026-Q1 |
| MORGAN STANLEY added | 125,217 | $4M | 1.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 119,244 | $3M | 1.5% | 2026-Q1 |
| HoldCo Asset Management, LP | 100,657 | $3M | 1.3% | 2026-Q1 |
| De Lisle Partners LLP | 83,935 | $2M | 1.0% | 2026-Q1 |
| Creative Planning added | 71,526 | $2M | 0.9% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 63,286 | $2M | 0.8% | 2026-Q1 |
| Cape Investment Advisory, Inc. added | 59,752 | $2M | 0.7% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 58,702 | $2M | 0.7% | 2026-Q1 |
| Nuveen, LLC trimmed | 56,894 | $2M | 0.7% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 44,465 | $1M | 0.6% | 2026-Q1 |
| Swiss National Bank added | 42,862 | $1M | 0.5% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 39,549 | $1M | 0.5% | 2026-Q1 |
| UBS Group AG added | 28,502 | $817K | 0.4% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 27,084 | $776K | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 25,770 | $739K | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 25,264 | $724K | 0.3% | 2026-Q1 |
| CAHABA WEALTH MANAGEMENT, INC. | 25,000 | $717K | 0.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 25,658 | $681K | 0.3% | 2026-Q1 |
| Quantinno Capital Management LP added | 23,201 | $665K | 0.3% | 2026-Q1 |
| Invesco Ltd. trimmed | 23,095 | $662K | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 21,719 | $623K | 0.3% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 21,452 | $615K | 0.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 19,731 | $566K | 0.2% | 2026-Q1 |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management trimmed | 19,146 | $549K | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ | 17,900 | $513K | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 17,126 | $491K | 0.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 15,299 | $439K | 0.2% | 2026-Q1 |
| Mariner, LLC trimmed | 13,719 | $393K | 0.2% | 2026-Q1 |
| Sherrill & Hutchins Financial Advisory, Inc trimmed | 13,024 | $373K | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 12,489 | $358K | 0.2% | 2026-Q1 |
| ExodusPoint Capital Management, LP new | 11,733 | $336K | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC trimmed | 11,205 | $321K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 10,777 | $309K | 0.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 10,398 | $298K | 0.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 10,162 | $291K | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 10,160 | $291K | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 9,396 | $269K | 0.1% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 9,291 | $266K | 0.1% | 2026-Q1 |
| MIRABELLA FINANCIAL SERVICES LLP new | 8,675 | $249K | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 8,192 | $235K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 8,114 | $233K | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 7,850 | $225K | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP trimmed | 7,620 | $218K | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co added | 6,536 | $189K | 0.1% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND | 5,954 | $171K | 0.1% | 2026-Q1 |
| CALDWELL SUTTER CAPITAL, INC. new | 5,742 | $165K | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 5,683 | $163K | 0.1% | 2026-Q1 |
| Police & Firemen's Retirement System of New Jersey | 5,413 | $155K | 0.1% | 2026-Q1 |
| KLP KAPITALFORVALTNING AS | 5,000 | $143K | 0.1% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 4,673 | $134K | 0.1% | 2026-Q1 |
| Vanguard Investments Australia, Ltd. new | 4,349 | $125K | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 4,221 | $121K | 0.1% | 2026-Q1 |
| Eurizon Capital SGR S.p.A. | 3,712 | $107K | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) added | 2,560 | $73K | 0.0% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2,259 | $65K | 0.0% | 2026-Q1 |
| EverSource Wealth Advisors, LLC added | 370 | $54K | 0.0% | 2026-Q1 |
| Ameritas Investment Partners, Inc. | 1,802 | $52K | 0.0% | 2026-Q1 |
| State of Alaska, Department of Revenue | 1,822 | $51K | 0.0% | 2026-Q1 |
| QUADRANT CAPITAL GROUP LLC added | 25 | $49K | 0.0% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 1,519 | $44K | 0.0% | 2026-Q1 |
| CWM, LLC trimmed | 1,350 | $39K | 0.0% | 2026-Q1 |
| FMR LLC added | 694 | $20K | 0.0% | 2026-Q1 |
| SIGNATUREFD, LLC added | 687 | $20K | 0.0% | 2026-Q1 |
| Versant Capital Management, Inc added | 395 | $11K | 0.0% | 2026-Q1 |
| HARBOR CAPITAL ADVISORS, INC. added | 385 | $11K | 0.0% | 2026-Q1 |
| Sterling Capital Management LLC trimmed | 381 | $11K | 0.0% | 2026-Q1 |
| US BANCORP \DE\ added | 275 | $8K | 0.0% | 2026-Q1 |
| HARBOUR INVESTMENTS, INC. added | 198 | $6K | 0.0% | 2026-Q1 |
| Allworth Financial LP added | 192 | $6K | 0.0% | 2026-Q1 |
| MassMutual Private Wealth & Trust, FSB added | 180 | $5K | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 927,109 | $25M | 10.7% | 2025-Q4 stale |
| Axecap Investments, LLC added | 40,446 | $1M | 0.5% | 2025-Q2 stale |
| JANE STREET GROUP, LLC trimmed | 19,547 | $519K | 0.2% | 2025-Q4 stale |
| CIBC Private Wealth Group LLC | 20,000 | $510K | 0.2% | 2025-Q1 stale |
| Qube Research & Technologies Ltd trimmed | 18,740 | $497K | 0.2% | 2025-Q4 stale |
| Inspire Investing, LLC added | 13,657 | $390K | 0.2% | 2025-Q2 stale |
| PDT Partners, LLC added | 12,331 | $340K | 0.1% | 2025-Q1 stale |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 12,725 | $338K | 0.1% | 2025-Q4 stale |
| FRANKLIN RESOURCES INC | 11,680 | $323K | 0.1% | 2025-Q3 stale |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC added | 10,703 | $295K | 0.1% | 2025-Q1 stale |
| LAZARD ASSET MANAGEMENT LLC added | 10,481 | $288K | 0.1% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP trimmed | 10,000 | $265K | 0.1% | 2025-Q4 stale |
| Corebridge Financial, Inc. trimmed | 9,041 | $249K | 0.1% | 2025-Q1 stale |
| TCW GROUP INC new | 7,928 | $210K | 0.1% | 2025-Q4 stale |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 7,564 | $201K | 0.1% | 2025-Q4 stale |
| SG Americas Securities, LLC added | 5,429 | $144K | 0.1% | 2025-Q4 stale |
| AMALGAMATED BANK trimmed | 615 | $16K | 0.0% | 2025-Q4 stale |
| COLDSTREAM CAPITAL MANAGEMENT INC new | 212 | $6K | 0.0% | 2025-Q1 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.