Marinemax Inc
HZO- Exchange
- NYSE
- Industry
- Retail-Auto & Home Supply Stores
- SEC CIK
- 0001057060
No open-market purchases or sales by Marinemax Inc insiders were filed in the last 90 days; 183 institutions reported holding it in 13F filings for Q2 2026, worth $708.7M in total; no superinvestor holds it.
Holders of 5% or more of HZO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Marinemax Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 13.70%2.95M shares | – | Jul 18, 20251 filing | Jul 18, 2025 | SEC |
| American Century Investment Management Inc | 13G/A | 10.30%2.26M shares | +0.70 ppfrom 9.60% | Aug 14, 20254 filings | Jun 5, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
7 Schedule 13D and 13G filings on Marinemax Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jun 5, 20268:41 AM ET | American Century Investment Management Incand 3 others | 13G/A | 10.30%2.26M shares | +0.70 ppfrom 9.60% | May 31, 2026 | SEC |
| May 1, 202610:11 AM ET | American Century Investment Management Incand 3 others | 13G/A | 9.60%2.12M shares | −0.30 ppfrom 9.90% | Mar 31, 2026 | SEC |
| Mar 27, 202610:34 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Jan 21, 20261:21 PM ET | Dimensional Fund Advisors LP | 13G/A | 4.80%1.04M shares | –Below 5% | Dec 31, 2025 | SEC |
| Jan 8, 202611:42 AM ET | American Century Investment Management Incand 3 others | 13G/A | 9.90%2.17M shares | −1.40 ppfrom 11.30% | Dec 31, 2025 | SEC |
| Aug 14, 20259:04 AM ET | American Century Investment Management Incand 3 others | 13G/A | 11.30%2.43M shares | – | Jun 30, 2025 | SEC |
| Jul 18, 20257:31 PM ET | BlackRock, Inc. | 13G/A | 13.70%2.95M shares | – | Jun 30, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Marinemax Inc shares.
No Form 144 notices for Marinemax Inc are on file.