Who owns MBAV (MBAV)
Which tracked institutional funds hold MBAV, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MBAV 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
15 tracked funds added or opened MBAV while 11 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
MBAV’s largest tracked holder by dollar value, CANTOR FITZGERALD, L. P., sizes it at 3.0% of its own reported 13F book, while the median holder sizes it at 0.2% of theirs — a 2.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MBAV 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 49 tracked filers holding MBAV, 16 increased or opened the position and 24 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 MBAV 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 8
- Crossingbridge Advisors, LLC$15M
- NOMURA HOLDINGS INC$11M
- Alyeska Investment Group, L.P.$11M
- Shay Capital LLC$11M
- HEIGHTS CAPITAL MANAGEMENT, INC$5M
- RiverPark Advisors, LLC$3M
Full exits 5
- CANTOR FITZGERALD, L. P.$83M
- Pantera Capital Partners LP$16M
- RIVERNORTH CAPITAL MANAGEMENT, LLC$5M
- Shaolin Capital Management LLC$1M
- Diametric Capital, LP$577K
Largest adds
- Jain Global LLC$28M
- Polar Asset Management Partners Inc.$22M
- Saba Capital Management, L.P.$17M
- MMCAP International Inc. SPC$2M
- Quarry LP$2M
- METEORA CAPITAL, LLC$428K
Largest trims
- Anson Funds Management LP$30M
- TORONTO DOMINION BANK$2M
- FNY Investment Advisers, LLC$646K
- MILLENNIUM MANAGEMENT LLC$521K
- JPMORGAN CHASE & CO$456K
- Periscope Capital Inc.$361K
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 |
|---|---|---|---|---|
| METEORA CAPITAL, LLC trimmed | 3,889,047 | $42M | 8.1% | 2026-Q1 |
| Polar Asset Management Partners Inc. added | 3,812,849 | $41M | 7.9% | 2026-Q1 |
| Jain Global LLC added | 2,846,250 | $31M | 5.9% | 2026-Q1 |
| Alberta Investment Management Corp | 2,475,000 | $27M | 5.1% | 2026-Q1 |
| Saba Capital Management, L.P. added | 1,585,000 | $17M | 3.3% | 2026-Q1 |
| Crossingbridge Advisors, LLC added | 1,390,442 | $15M | 2.9% | 2026-Q1 |
| LMR Partners LLP | 1,352,676 | $15M | 2.8% | 2026-Q1 |
| NOMURA HOLDINGS INC new | 1,017,975 | $11M | 2.1% | 2026-Q1 |
| Shay Capital LLC added | 1,000,000 | $11M | 2.1% | 2026-Q1 |
| Alyeska Investment Group, L.P. new | 1,000,000 | $11M | 2.1% | 2026-Q1 |
| BERKLEY W R CORP trimmed | 963,675 | $10M | 2.0% | 2026-Q1 |
| TORONTO DOMINION BANK trimmed | 722,980 | $8M | 1.5% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 629,956 | $7M | 1.3% | 2026-Q1 |
| MMCAP International Inc. SPC added | 550,000 | $6M | 1.1% | 2026-Q1 |
| Harraden Circle Investments, LLC | 500,000 | $5M | 1.0% | 2026-Q1 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 500,000 | $5M | 1.0% | 2026-Q1 |
| BCK CAPITAL MANAGEMENT LP | 388,000 | $4M | 0.8% | 2026-Q1 |
| Feynman Point Asset Management LLC | 300,000 | $3M | 0.6% | 2026-Q1 |
| RiverPark Advisors, LLC new | 294,172 | $3M | 0.6% | 2026-Q1 |
| Magnetar Financial LLC | 269,016 | $3M | 0.6% | 2026-Q1 |
| Mint Tower Capital Management B.V. | 204,293 | $2M | 0.4% | 2026-Q1 |
| Quarry LP added | 146,347 | $2M | 0.3% | 2026-Q1 |
| RLH Capital LLC new | 146,347 | $2M | 0.3% | 2026-Q1 |
| WHITEBOX ADVISORS LLC | 130,000 | $1M | 0.3% | 2026-Q1 |
| Clear Street Group Inc. trimmed | 102,471 | $1M | 0.2% | 2026-Q1 |
| HGC Investment Management Inc. | 100,600 | $1M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 100,000 | $1M | 0.2% | 2026-Q1 |
| Periscope Capital Inc. trimmed | 100,000 | $1M | 0.2% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP | 100,000 | $1M | 0.2% | 2026-Q1 |
| FNY Investment Advisers, LLC trimmed | 97,900 | $1M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 94,067 | $1M | 0.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 90,428 | $971K | 0.2% | 2026-Q1 |
| CSS LLC/IL trimmed | 73,352 | $788K | 0.2% | 2026-Q1 |
| HRT FINANCIAL LP added | 70,874 | $761K | 0.1% | 2026-Q1 |
| DLD Asset Management, LP trimmed | 60,000 | $644K | 0.1% | 2026-Q1 |
| BARCLAYS PLC | 59,315 | $637K | 0.1% | 2026-Q1 |
| PICTON MAHONEY ASSET MANAGEMENT | 51,560 | $554K | 0.1% | 2026-Q1 |
| Radcliffe Capital Management, L.P. | 51,523 | $553K | 0.1% | 2026-Q1 |
| DELTEC ASSET MANAGEMENT LLC | 50,000 | $537K | 0.1% | 2026-Q1 |
| Anson Funds Management LP trimmed | 50,000 | $537K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 41,817 | $449K | 0.1% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 40,150 | $431K | 0.1% | 2026-Q1 |
| GABELLI FUNDS LLC | 32,400 | $348K | 0.1% | 2026-Q1 |
| Tuttle Capital Management, LLC | 20,000 | $215K | 0.0% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 8,503 | $91K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 6,826 | $74K | 0.0% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC trimmed | 6,826 | $74K | 0.0% | 2026-Q1 |
| UBS Group AG trimmed | 136 | $1K | 0.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 64 | $687 | 0.0% | 2026-Q1 |
| CANTOR FITZGERALD, L. P. added | 7,779,865 | $83M | 16.0% | 2025-Q4 stale |
| Pantera Capital Partners LP new | 1,500,000 | $16M | 3.1% | 2025-Q4 stale |
| D. E. Shaw & Co., Inc. | 1,237,500 | $13M | 2.5% | 2025-Q3 stale |
| TENOR CAPITAL MANAGEMENT Co., L.P. added | 1,187,500 | $13M | 2.4% | 2025-Q3 stale |
| AQR Arbitrage LLC trimmed | 830,918 | $9M | 1.7% | 2025-Q3 stale |
| ARISTEIA CAPITAL, L.L.C. added | 803,405 | $8M | 1.6% | 2025-Q3 stale |
| J. Goldman & Co LP new | 677,621 | $7M | 1.4% | 2025-Q3 stale |
| GOLDMAN SACHS GROUP INC trimmed | 658,439 | $7M | 1.3% | 2025-Q3 stale |
| TWO SIGMA INVESTMENTS, LP | 625,000 | $7M | 1.3% | 2025-Q3 stale |
| Karpus Management, Inc. trimmed | 607,597 | $6M | 1.2% | 2025-Q1 stale |
| First Trust Capital Management L.P. trimmed | 553,918 | $6M | 1.1% | 2025-Q3 stale |
| RIVERNORTH CAPITAL MANAGEMENT, LLC trimmed | 499,024 | $5M | 1.0% | 2025-Q4 stale |
| Verition Fund Management LLC added | 450,000 | $5M | 1.0% | 2025-Q2 stale |
| GRITSTONE ASSET MANAGEMENT LLC | 406,203 | $5M | 0.9% | 2025-Q2 stale |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 400,000 | $4M | 0.8% | 2025-Q3 stale |
| Bulldog Investors, LLP trimmed | 326,877 | $3M | 0.7% | 2025-Q3 stale |
| FIFTH LANE CAPITAL, LP trimmed | 279,606 | $3M | 0.6% | 2025-Q3 stale |
| ExodusPoint Capital Management, LP new | 250,000 | $3M | 0.5% | 2025-Q2 stale |
| Sculptor Capital LP new | 250,000 | $3M | 0.5% | 2025-Q3 stale |
| Schechter Investment Advisors, LLC trimmed | 251,800 | $3M | 0.5% | 2025-Q1 stale |
| MIZUHO SECURITIES USA LLC added | 172,265 | $2M | 0.3% | 2025-Q3 stale |
| READYSTATE ASSET MANAGEMENT LP new | 137,766 | $1M | 0.3% | 2025-Q3 stale |
| Wealthspring Capital LLC trimmed | 134,807 | $1M | 0.3% | 2025-Q3 stale |
| WEXFORD CAPITAL LP new | 95,912 | $1M | 0.2% | 2025-Q2 stale |
| Shaolin Capital Management LLC trimmed | 100,000 | $1M | 0.2% | 2025-Q4 stale |
| Potrero Capital Research LLC | 100,000 | $1M | 0.2% | 2025-Q3 stale |
| PNC Financial Services Group, Inc. | 100,000 | $1M | 0.2% | 2025-Q1 stale |
| Schonfeld Strategic Advisors LLC trimmed | 70,000 | $738K | 0.1% | 2025-Q3 stale |
| BLUEFIN CAPITAL MANAGEMENT, LLC new | 61,158 | $690K | 0.1% | 2025-Q2 stale |
| Diametric Capital, LP added | 54,258 | $577K | 0.1% | 2025-Q4 stale |
| LEVIN CAPITAL STRATEGIES, L.P. new | 47,618 | $538K | 0.1% | 2025-Q2 stale |
| Rangeley Capital, LLC new | 36,214 | $382K | 0.1% | 2025-Q3 stale |
| CLEAR STREET LLC added | 32,069 | $362K | 0.1% | 2025-Q2 stale |
| BARDIN HILL MANAGEMENT PARTNERS LP new | 23,173 | $262K | 0.1% | 2025-Q2 stale |
| PharVision Advisers, LLC new | 23,238 | $247K | 0.0% | 2025-Q4 stale |
| Virtu Financial LLC new | 14,714 | $166K | 0.0% | 2025-Q2 stale |
| Hudson Bay Capital Management LP trimmed | 15,000 | $159K | 0.0% | 2025-Q4 stale |
| Sandia Investment Management LP trimmed | 15,000 | $158K | 0.0% | 2025-Q3 stale |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 13,500 | $144K | 0.0% | 2025-Q4 stale |
| Ursa Fund Management, LLC new | 10,000 | $113K | 0.0% | 2025-Q2 stale |
| TrueMark Investments, LLC | 10,000 | $103K | 0.0% | 2025-Q1 stale |
| CITIGROUP INC new | 104 | $1K | 0.0% | 2025-Q2 stale |
| BANK OF AMERICA CORP /DE/ new | 25 | $266 | 0.0% | 2025-Q4 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 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.