Who owns MarineMax, Inc. (HZO)
Which tracked institutional funds hold HZO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See HZO company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
44 tracked funds added or opened HZO while 29 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
HZO’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 gap the other way — the median holder sizes HZO more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in HZO 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 169 tracked filers holding HZO, 87 increased or opened the position and 79 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 HZO 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 13
- VANGUARD CAPITAL MANAGEMENT LLC$23M
- VANGUARD PORTFOLIO MANAGEMENT LLC$13M
- Shay Capital LLC$7M
- Divisadero Street Capital Management, LP$4M
- VANGUARD FIDUCIARY TRUST CO$3M
- Squarepoint Ops LLC$2M
Full exits 11
- VANGUARD GROUP INC$31M
- Portolan Capital Management, LLC$12M
- HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC$6M
- Corient Private Wealth LLC$3M
- Brandywine Global Investment Management, LLC$1M
- AlphaQuest LLC$1M
Largest adds
- BlackRock, Inc.$10M
- JPMORGAN CHASE & CO$6M
- AMERICAN CENTURY COMPANIES INC$5M
- Annis Gardner Whiting Capital Advisors, LLC$5M
- BOOTHBAY FUND MANAGEMENT, LLC$4M
- ROYCE & ASSOCIATES LP$4M
Largest trims
- MORGAN STANLEY$5M
- CITADEL ADVISORS LLC$5M
- ROYAL BANK OF CANADA$4M
- TWO SIGMA INVESTMENTS, LP$4M
- CenterBook Partners LP$3M
- PRIVATE MANAGEMENT GROUP INC$3M
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 | 3,054,794 | $83M | 14.0% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 2,120,402 | $57M | 9.7% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 966,614 | $26M | 4.4% | 2026-Q1 |
| STATE STREET CORP trimmed | 933,937 | $25M | 4.3% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 859,493 | $23M | 3.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 854,676 | $23M | 3.9% | 2026-Q1 |
| LEVIN CAPITAL STRATEGIES, L.P. trimmed | 606,469 | $16M | 2.8% | 2026-Q1 |
| Invesco Ltd. trimmed | 603,164 | $16M | 2.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 574,666 | $16M | 2.6% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 501,156 | $14M | 2.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 476,692 | $13M | 2.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 475,152 | $13M | 2.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 386,799 | $10M | 1.8% | 2026-Q1 |
| CenterBook Partners LP trimmed | 360,976 | $10M | 1.7% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 336,052 | $9M | 1.5% | 2026-Q1 |
| Shay Capital LLC added | 256,523 | $7M | 1.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 254,762 | $7M | 1.1% | 2026-Q1 |
| Prescott Group Capital Management, L.L.C. added | 222,490 | $6M | 1.0% | 2026-Q1 |
| GAGNON SECURITIES LLC trimmed | 220,610 | $6M | 1.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 218,164 | $6M | 1.0% | 2026-Q1 |
| Interval Partners, LP trimmed | 211,415 | $6M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 189,818 | $5M | 0.9% | 2026-Q1 |
| Annis Gardner Whiting Capital Advisors, LLC added | 180,021 | $5M | 0.8% | 2026-Q1 |
| Simcoe Capital LLC added | 170,356 | $5M | 0.8% | 2026-Q1 |
| De Lisle Partners LLP | 168,300 | $5M | 0.8% | 2026-Q1 |
| Divisadero Street Capital Management, LP trimmed | 163,646 | $4M | 0.7% | 2026-Q1 |
| Shellback Capital, LP trimmed | 162,758 | $4M | 0.7% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 160,184 | $4M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 151,964 | $4M | 0.7% | 2026-Q1 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 131,749 | $4M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 131,405 | $4M | 0.6% | 2026-Q1 |
| LAWSON KROEKER INVESTMENT MANAGEMENT INC/NE trimmed | 129,762 | $4M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 127,436 | $3M | 0.6% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 126,272 | $3M | 0.6% | 2026-Q1 |
| Soviero Asset Management, LP added | 125,160 | $3M | 0.6% | 2026-Q1 |
| UBS Group AG trimmed | 118,911 | $3M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp added | 117,916 | $3M | 0.5% | 2026-Q1 |
| CM Management, LLC added | 110,000 | $3M | 0.5% | 2026-Q1 |
| RBF Capital, LLC added | 106,830 | $3M | 0.5% | 2026-Q1 |
| Empowered Funds, LLC added | 103,784 | $3M | 0.5% | 2026-Q1 |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | 99,510 | $3M | 0.5% | 2026-Q1 |
| Gagnon Advisors, LLC trimmed | 97,242 | $3M | 0.4% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 94,223 | $3M | 0.4% | 2026-Q1 |
| Squarepoint Ops LLC added | 76,433 | $2M | 0.4% | 2026-Q1 |
| Concentric Capital Strategies, LP trimmed | 75,910 | $2M | 0.3% | 2026-Q1 |
| BARCLAYS PLC trimmed | 75,795 | $2M | 0.3% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 73,935 | $2M | 0.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 72,162 | $2M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 69,390 | $2M | 0.3% | 2026-Q1 |
| SEI INVESTMENTS CO trimmed | 68,140 | $2M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 64,108 | $2M | 0.3% | 2026-Q1 |
| Round Rock Advisors LLC added | 62,509 | $2M | 0.3% | 2026-Q1 |
| PRIVATE MANAGEMENT GROUP INC trimmed | 61,824 | $2M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 61,229 | $2M | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 55,866 | $2M | 0.3% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 54,528 | $1M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 53,372 | $1M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 53,014 | $1M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 50,528 | $1M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 42,605 | $1M | 0.2% | 2026-Q1 |
| Uniplan Investment Counsel, Inc. new | 42,587 | $1M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 40,742 | $1M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 38,900 | $1M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 36,565 | $989K | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC | 36,000 | $974K | 0.2% | 2026-Q1 |
| Permanent Capital Management, LP trimmed | 31,877 | $916K | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 31,127 | $842K | 0.1% | 2026-Q1 |
| Assenagon Asset Management S.A. trimmed | 29,789 | $806K | 0.1% | 2026-Q1 |
| SWS Partners added | 29,217 | $791K | 0.1% | 2026-Q1 |
| Creative Planning added | 28,110 | $761K | 0.1% | 2026-Q1 |
| SummerHaven Investment Management, LLC trimmed | 26,393 | $714K | 0.1% | 2026-Q1 |
| XTX Topco Ltd trimmed | 25,922 | $701K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 24,264 | $657K | 0.1% | 2026-Q1 |
| CAXTON ASSOCIATES LLP trimmed | 22,112 | $598K | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 20,472 | $554K | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 19,725 | $534K | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 18,389 | $498K | 0.1% | 2026-Q1 |
| Ameliora Wealth Management Ltd. | 17,600 | $476K | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co added | 17,315 | $469K | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 16,928 | $458K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 1,278,150 | $31M | 5.2% | 2025-Q4 stale |
| Portolan Capital Management, LLC added | 487,426 | $12M | 2.0% | 2025-Q4 stale |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 259,845 | $6M | 1.1% | 2025-Q4 stale |
| Broad Bay Capital Management, LP trimmed | 134,934 | $3M | 0.6% | 2025-Q3 stale |
| Acuitas Investments, LLC added | 131,538 | $3M | 0.6% | 2025-Q3 stale |
| Corient Private Wealth LLC added | 120,453 | $3M | 0.5% | 2025-Q4 stale |
| Qube Research & Technologies Ltd added | 105,544 | $3M | 0.4% | 2025-Q2 stale |
| ALGERT GLOBAL LLC added | 105,535 | $3M | 0.4% | 2025-Q2 stale |
| Brandywine Global Investment Management, LLC trimmed | 52,240 | $1M | 0.2% | 2025-Q4 stale |
| AlphaQuest LLC added | 46,820 | $1M | 0.2% | 2025-Q4 stale |
| DARK FOREST CAPITAL MANAGEMENT LP added | 52,545 | $1M | 0.2% | 2025-Q1 stale |
| STATE OF WISCONSIN INVESTMENT BOARD added | 46,524 | $1M | 0.2% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC added | 37,578 | $911K | 0.2% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 34,337 | $870K | 0.1% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 34,113 | $827K | 0.1% | 2025-Q4 stale |
| MARSHALL WACE, LLP trimmed | 30,230 | $732K | 0.1% | 2025-Q4 stale |
| DC Investments Management, LLC | 26,700 | $676K | 0.1% | 2025-Q3 stale |
| RAYMOND JAMES FINANCIAL INC added | 23,707 | $574K | 0.1% | 2025-Q4 stale |
| Jump Financial, LLC trimmed | 20,527 | $520K | 0.1% | 2025-Q3 stale |
| NEXPOINT ASSET MANAGEMENT, L.P. added | 21,000 | $452K | 0.1% | 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.