Marinemax HZO Insider Ownership

NYSE HZO

$52.36 +0.35 (+0.67%)

As of: Oct 20, 2026 · 3:59 PM EDT

Insider Holdings by Owner

1.77Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

4.27%

▲+0.550% pp QoQ

Shares Held by Insiders

942.42K

filed for Sep 2026

▲+14.80% QoQ

Shares Outstanding

22.09Mn

22,086,746 shares

Direct Holdings

942.42K

Indirect: 0

Net Shares Traded (QoQ)

+121.52K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

In the last 12 months, insiders at Marinemax neither bought nor sold shares on the open market.

Away from the open market, HZO insiders received 825 shares in stock awards, acquired 234.66K shares through option exercises and conversions and gave up 87.54K shares to cover taxes or exercise prices over the last 12 months.
Per Business Quant, HZO insiders together hold 942.42K shares based on their latest Form 4 filings, up 14.80% from 820.9K shares at the end of Q2 2026.
By type of ownership, HZO insiders hold all of their 942.42K shares directly.
Business Quant counts 14 insiders with holdings in Marinemax stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Marinemax's three largest insider shareholders, based on their latest Form 4 filings, are W. Brett McGill (CEO & President, 329.58K shares), Michael H. McLamb (Executive VP, CFO and Secretary, 153.16K shares) and Charles A. Cashman (EVP & Chief Revenue Officer, 88.2K shares).
W. Brett McGill alone accounts for 34.97% of the shares held by Marinemax insiders.
Institutions owned 87.58% of HZO shares as of Q2 2026; insiders' latest Form 4 filings account for about 4.27%, leaving roughly 8.15% with other investors, including the public.
A total of 22 Form 4 filings with transactions in Marinemax stock were made over the past 12 months, by 13 insiders.
Insider figures for HZO include Form 4 filings through October 2, 2026.

Form 4 Holdings

Insiders Holding HZO

Insiders 18

Shares held 1.77Mn

Of outstanding 8.00%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	W Brett Mcgill	Ceo President	772,089	772,089	43.7%	02 Oct, 2026
2	William H Jr Mcgill	Executive Chairman	164,852	164,852	9.3%	03 Oct, 2023
3	Michael H Mclamb	Executive Vp, Cfo And Sec	153,161	153,161	8.7%	02 Oct, 2026
4	Joseph Allen Watters	Director	98,454	98,454	5.6%	20 Nov, 2023
5	Charles A Cashman	Evp Chief Revenue Officer	88,199	88,199	5.0%	02 Oct, 2025
6	Kyle Langbehn	Evp, President Of Retail	84,665	84,665	4.8%	02 Oct, 2026
7	Charles R Oglesby	Director	69,979	69,979	4.0%	01 Jul, 2024
8	George E Borst	Director	45,335	45,335	2.6%	11 May, 2026
9	Evelyn V Follit	Director	45,050	45,050	2.6%	18 Nov, 2024
10	Adam M. Johnson	Director	43,968	43,968	2.5%	02 Jan, 2026
11	Shawn Berg	Evp, Chief Digital Officer	40,605	40,605	2.3%	02 Oct, 2026
12	Rebecca White	Director	30,465	30,465	1.7%	18 Nov, 2025
13	Anthony E. Jr. Cassella	Evp Of Finance Cao	28,392	28,392	1.6%	02 Oct, 2026
14	Mercedes Romero	Director	27,814	27,814	1.6%	18 Nov, 2025
15	Hilliard M Eure	Director	25,804	25,804	1.5%	04 Mar, 2024
16	Clint Moore	Director	23,560	23,560	1.3%	29 Jan, 2025
17	Manuel A. Iii Alvare	General Counsel	17,570	17,570	1.0%	02 Oct, 2026
18	Bonnie Biumi	Director	6,633	6,633	0.4%	18 Nov, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

2,791 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
30 Sep, 2026	W Brett Mcgill	Ceo President	Acquired M	73,566	$0.00	$0	316,353	Direct
30 Sep, 2026	Kyle Langbehn	Evp, President Of Retail	Acquired M	15,925	$0.00	$0	79,314	Direct
30 Sep, 2026	Michael H Mclamb	Executive Vp, Cfo And Sec	Acquired M	15,925	$0.00	$0	148,188	Direct
30 Sep, 2026	Shawn Berg	Evp, Chief Digital Officer	Acquired M	7,010	$0.00	$0	37,236	Direct
30 Sep, 2026	Anthony E. Jr. Cassella	Evp Of Finance Cao	Acquired M	5,885	$0.00	$0	25,692	Direct
30 Sep, 2026	Manuel A. Iii Alvare	General Counsel	Acquired M	4,934	$0.00	$0	15,248	Direct
30 Sep, 2026	Kyle Langbehn	Evp, President Of Retail	Acquired M	4,045	$0.00	$0	83,359	Direct
30 Sep, 2026	Anthony E. Jr. Cassella	Evp Of Finance Cao	Acquired M	1,495	$0.00	$0	27,187	Direct
30 Sep, 2026	Michael H Mclamb	Executive Vp, Cfo And Sec	Acquired M	4,045	$0.00	$0	152,233	Direct
30 Sep, 2026	W Brett Mcgill	Ceo President	Acquired M	18,684	$0.00	$0	335,037	Direct
30 Sep, 2026	Shawn Berg	Evp, Chief Digital Officer	Acquired M	1,781	$0.00	$0	39,017	Direct
30 Sep, 2026	Manuel A. Iii Alvare	General Counsel	Acquired M	748	$0.00	$0	15,996	Direct
30 Sep, 2026	Shawn Berg	Evp, Chief Digital Officer	Acquired M	2,029	$0.00	$0	41,046	Direct
30 Sep, 2026	Manuel A. Iii Alvare	General Counsel	Acquired M	506	$0.00	$0	16,502	Direct
30 Sep, 2026	Michael H Mclamb	Executive Vp, Cfo And Sec	Acquired M	4,387	$0.00	$0	156,620	Direct
30 Sep, 2026	Kyle Langbehn	Evp, President Of Retail	Acquired M	6,697	$0.00	$0	90,056	Direct
30 Sep, 2026	Anthony E. Jr. Cassella	Evp Of Finance Cao	Acquired M	1,628	$0.00	$0	28,815	Direct
30 Sep, 2026	W Brett Mcgill	Ceo President	Acquired M	19,897	$0.00	$0	354,934	Direct
30 Sep, 2026	Shawn Berg	Evp, Chief Digital Officer	Acquired M	2,902	$0.00	$0	43,948	Direct
30 Sep, 2026	Michael H Mclamb	Executive Vp, Cfo And Sec	Acquired M	6,327	$0.00	$0	162,947	Direct

Showing 1 to 20 of 2,791 transactions