Stocks › HZO
MarineMax HZO
US equityMarket cap rank #3111
$52.70 −$0.03 (-0.06%)
Market closed · Nov 7, 9:10 am ET · Last extended-hours $52.70 0.00%
Open$52.69
Prev close$52.73
Day range$52.69 – $52.77
Volume682.0K
Market cap$1.16B
P/E (TTM)–
Dividend yield–
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership96.9%+6.91 pts vs. prior quarter
Institutions holding237+9 vs. prior quarter
Insider trades (recent)39 buys / 11 sellsNet buying
Short interest9.14% of floatDays to cover 2.7 · as of 15 Oct 2026
Short-sale volume share29.5%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$77.50M (4 inflow days, 16 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 39.6% of shares outstanding.
Largest holders
By investor type
Reported short interest has fallen from 13.25% to 9.14% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| ABC Arbitrage Asset Management SA | Mutual Fund | 2026/Q3 | +140,605 | 0.6% |
| Chicago Capital Management, LLC | Hedge Fund | 2026/Q3 | +106,294 | 0.5% |
| William McGill | Individual/Insider | 2026/Q3 | +86,791 | 1.5% |
| Tokio Marine Asset Management Co., Ltd. | Mutual Fund | 2026/Q3 | +68,200 | 0.3% |
| Water Island Capital, LLC | Mutual Fund | 2026/Q3 | +46,166 | 0.2% |
| Versor Investments LP | Hedge Fund | 2026/Q3 | +40,552 | 0.2% |
| Amalar Holding S.R.O. | Private Company | 2026/Q3 | +1,343,635 | 6.1% |
| Portolan Capital Management, LLC | Hedge Fund | 2026/Q3 | +344,358 | 1.6% |
| Divisadero Street Capital Management, LP | Hedge Fund | 2026/Q3 | +292,325 | 2.1% |
| American Century Investment Management | Mutual Fund | 2026/Q3 | +154,697 | 10.3% |
| BlackRock | Mutual Fund | 2026/Q3 | +124,129 | 14.4% |
| Hudson River Trading LLC | Private Company | 2026/Q3 | +93,048 | 0.4% |
| Royce & Associates, LP | Mutual Fund | 2026/Q3 | +65,510 | 2.6% |
| Round Rock Advisors LLC | Mutual Fund | 2026/Q3 | +57,521 | 0.5% |
| Dcf Advisers, Llc | Mutual Fund | 2026/Q3 | +57,500 | 0.3% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 29 Sep 2026 | Michael McLamb | Chief Financial Officer | Derivative Exercise and Sale | -9,786 | $52.30 | 153,161 |
| 29 Sep 2026 | Michael McLamb | Chief Financial Officer | Derivative Exercise and Retained | +20,898 | – | 153,161 |
| 29 Sep 2026 | William McGill | Chief Executive Officer | Derivative Exercise and Sale | -53,686 | $52.30 | 329,578 |
| 29 Sep 2026 | William McGill | Chief Executive Officer | Derivative Exercise and Retained | +86,791 | – | 329,578 |
| 29 Sep 2026 | Anthony Cassella | Executive VP of Finance & Chief Accounting Officer | Derivative Exercise and Sale | -2,766 | $52.30 | 28,392 |
| 29 Sep 2026 | Anthony Cassella | Executive VP of Finance & Chief Accounting Officer | Derivative Exercise and Retained | +8,585 | – | 28,392 |
| 29 Sep 2026 | Kyle Langbehn | Executive VP & President of Retail Operations | Derivative Exercise and Sale | -14,890 | $52.30 | 84,665 |
| 29 Sep 2026 | Kyle Langbehn | Executive VP & President of Retail Operations | Derivative Exercise and Retained | +21,276 | – | 84,665 |
| 29 Sep 2026 | Shawn Berg | Executive VP & Chief Digital Officer | Derivative Exercise and Sale | -3,343 | $52.30 | 40,605 |
| 29 Sep 2026 | Shawn Berg | Executive VP & Chief Digital Officer | Derivative Exercise and Retained | +10,379 | – | 40,605 |
| 29 Sep 2026 | Manny Alvare | General Counsel | Derivative Exercise and Sale | -2,340 | $52.30 | 17,595 |
| 29 Sep 2026 | Manny Alvare | General Counsel | Derivative Exercise and Retained | +7,256 | – | 17,595 |
| 6 May 2026 | George Borst | Independent Director | Derivative Exercise and Retained | +5,000 | $16.97 | 45,335 |
| 30 Dec 2025 | Adam Johnson | Former Independent Director | Other Acquisition | +825 | $24.23 | 29,217 |
| 20 Nov 2025 | Charles Cashman | Senior Vice President of Global Yacht Sales | Intent to Sell (Form 144) | -10,000 | $21.97 | – |
| 18 Nov 2025 | Manny Alvare | General Counsel | Derivative Exercise and Sale | -731 | $22.38 | 10,339 |
| 18 Nov 2025 | Manny Alvare | General Counsel | Derivative Exercise and Retained | +2,269 | – | 10,339 |
| 16 Nov 2025 | Bonnie Biumi | Independent Director | Other Derivative Acquisition | +6,309 | – | 6,309 |
| 16 Nov 2025 | Michael McLamb | Chief Financial Officer | Other Derivative Acquisition | +7,316 | – | 7,316 |
| 16 Nov 2025 | Michael McLamb | Chief Financial Officer | Other Derivative Acquisition | +18,982 | – | 18,982 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 2,018,556 | 9.1% | 2.7 |
| 30 Sep 2026 | 1,975,121 | 8.9% | 2.7 |
| 15 Sep 2026 | 2,385,209 | 10.8% | 2.6 |
| 31 Aug 2026 | 2,295,524 | 10.4% | 4.2 |
| 14 Aug 2026 | 2,558,986 | 11.6% | 1.8 |
| 31 Jul 2026 | 2,927,051 | 13.3% | 8.7 |
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