HZO

Marinemax Inc Cross-source read$52.17 0.02%
Consumer DiscretionaryCUSIP 567908108· EOD Sep 8, 2026

Among active 13F managers last quarter, 11 opened and 18 added, while 19 reduced; the largest holder to move was American Century Companies Inc (−2.1%). No open-market insider trades in the last 180 days.

Tracked 13F holders
159
68 in Q2 2026 filings
13F value (tracked)
$589.8M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
29 adding · 19 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$52.17 0.02%5Y +8.7%
$14.88$26.51$38.14$49.76$61.392021202220232024202520263228928333927353333240293752838183620272425327272132333212637224022422722837343537402314
Hover for who · click for detailEnd-of-day closing prices52w $21.43 – $52.46

Who owns HZO?

159 tracked 13F filers · ranked by shares held

159 tracked 13F filers disclose a position in HZO as of the latest SEC 13F filings, a combined $589.8M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1BlackRock, Inc.3.2M
$116.4M
+4.1%
Added · +124K sh
Q2 2026
2American Century Companies Inc2.1M
$57.4M
−2.1%
Reduced · −45K sh
Q1 2026
3Dimensional Fund Advisors LP967K
$26.2M
−7.5%
Reduced · −78K sh
Q1 2026
4State Street Corp958K
$35.1M
+2.6%
Added · +25K sh
Q2 2026
5Vanguard Capital Management LLC873K
$32.0M
+2.1%
Added · +18K sh
Q2 2026
6Charles Schwab Investment Management Inc575K
$15.6M
−3.0%
Reduced · −18K sh
Q1 2026
7Geode Capital Management, LLC508K
$18.6M
+6.9%
Added · +33K sh
Q2 2026
8Vanguard Portfolio Management LLC503K
$18.4M
+5.5%
Added · +26K sh
Q2 2026
9Divisadero Street Capital Management, LP456K
$16.7M
+179%
Added · +292K sh
Q2 2026
10Levin Capital Strategies, L.P.428K
$15.7M
−29%
Reduced · −178K sh
Q2 2026
11Goldman Sachs Group Inc387K
$10.5M
−11%
Reduced · −47K sh
Q1 2026
12First Eagle Investment Management, LLC378K
$13.9M
+13%
Added · +42K sh
Q2 2026
13Boothbay Fund Management, LLC373K
$13.6M
−57%
Reduced · −487K sh
Q2 2026
14Portolan Capital Management, LLC344K
$12.6M
Added
Added · +344K sh
Q2 2026
15JPMorgan Chase & Co255K
$6.6M
30×
Added · +246K sh
Q1 2026
16Shay Capital LLC235K
$8.6M
−8.3%
Reduced · −21K sh
Q2 2026
17Prescott Group Capital Management, L.L.C.222K
$8.1M
Held
Q2 2026
18Simcoe Capital LLC221K
$8.1M
+30%
Added · +51K sh
Q2 2026
19Morgan Stanley218K
$5.9M
−51%
Reduced · −226K sh
Q1 2026
20Gagnon Securities LLC211K
$7.7M
−4.1%
Reduced · −9K sh
Q2 2026
21Interval Partners, LP211K
$7.7M
Held
Q2 2026
22Northern Trust Corp190K
$5.1M
+6.1%
Added · +11K sh
Q1 2026
23Annis Gardner Whiting Capital Advisors, LLC180K
$6.6M
Held
Q2 2026
24De Lisle Partners LLP168K
$6.2M
Held
Q2 2026
25Bridgeway Capital Management, LLC168K
$6.2M
+5.0%
Added · +8K sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is HZO being bought or sold by institutions?

Last quarter, 11 funds opened a new position in HZO and 18 added to an existing one, while 19 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
11
funds took a first position
Added
18
added to an existing position
Reduced
19
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own HZO also own

CompanyCo-held byTheir position there
Amazon.com IncAMZN79 funds$118.1B
Microsoft CorpMSFT76 funds$155.5B
Meta Platforms Inc-Class AMETA75 funds$69.3B
Nvidia CorpNVDA74 funds$250.7B
Alphabet Inc-CL AGOOGL74 funds$102.3B
Apple IncAAPL72 funds$174.5B
Berkshire Hathaway Inc-CL BBRK/B71 funds$22.1B
Tesla IncTSLA70 funds$42.5B
Broadcom IncAVGO69 funds$102.3B
Eli Lilly & CoLLY69 funds$54.6B
Visa Inc-Class A SharesV69 funds$38.3B
Oracle CorpORCL69 funds$15.6B

Ranked by how many of HZO's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in HZO.

Insider activity (Form 4)

Full insider page →
Net · 180d
$0
0 open-market transactions
DateInsiderRoleActionSharesValue
Aug 25, 2025McGill W BrettCEO & President, DirectorSell (S)
2 lots, same day
60K$1.7M
Mar 11, 2025Biumi BonnieDirectorBuy (P)1K$23K
Feb 24, 2025Biumi BonnieDirectorBuy (P)1K$27K
Jan 27, 2025Cassella Anthony E. Jr.EVP of Finance & CAOSell (S)4K$124K
Jan 27, 2025Moore ClintDirectorSell (S)4K$126K
Nov 7, 2024Cashman Charles AEVP & Chief Revenue OfficerSell (S)13K$401K
Sep 9, 2024Moore ClintDirectorSell (S)3K$75K
Aug 21, 2024Langbehn KyleEVP, President of RetailSell (S)10K$308K
Jul 29, 2024Langbehn KyleEVP, President of RetailSell (S)10K$372K
Mar 11, 2024Moore ClintDirectorSell (S)4K$124K
Feb 15, 2024Cassella Anthony E. Jr.EVP of Finance & CAOSell (S)5K$161K
Feb 2, 2024Cashman Charles AInsiderSell (S)8K$223K

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
4032
Insiders
Form 4 open-market
00$0
US House
STOCK Act trades
00$0
Sector rotation
HZO is in Consumer Discretionary, which smart money is rotating OUT OF
$12.8B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

68 tracked filers in Q2 2026 filingsstill filing
075149Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $158.1M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

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Connected entities for HZO

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Ask your agent what changed in HZO

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/HZO/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for HZO.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HZO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.