MarineMax, Inc.
DE ˙ DB ˙ US5679081084
29,80 € ↑0,20 (0,68%)
2026-06-03
DEL PRIS
SecurityDE:MLW / MarineMax, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership118,911 shares
Latest Disclosed Value $ 3,217,732
UBS Group AG ownership in MLW / MarineMax, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 118,911 shares of MarineMax, Inc. (DE:MLW) valued at $2,699,280 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 124,819 shares of MarineMax, Inc.. This represents a change in shares of -4.73% during the quarter. The current value of the position is $3,543,548 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (MLW) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:MLW / MarineMax, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F MARINEMAX COM 567908108 118,911 -5,908 -4.73 3,218 6.38 0.0001
2026-01-29 2025-12-31 13F MARINEMAX COM 567908108 124,819 -13,599 -9.82 3,024 -13.75 0.0005
2025-11-13 2025-09-30 13F MARINEMAX COM 567908108 138,418 -58,614 -29.75 3,506 -29.21 0.0005
2025-08-14 2025-06-30 13F MARINEMAX COM 567908108 197,032 -109,943 -35.81 4,953 -24.94 0.0009
2025-05-13 2025-03-31 13F MARINEMAX COM 567908108 306,975 189,172 160.58 6,600 93.52 0.0012
2025-02-14 2024-12-31 13F MARINEMAX COM 567908108 117,803 104,039 755.88 3,410 603.09 0.0006
2024-11-14 2024-09-30 13F MARINEMAX COM 567908108 13,764 3,983 40.72 485 53.48 0.0001
2024-08-14 2024-06-30 13F MARINEMAX COM 567908108 9,781 -5,540 -36.16 317 -37.92 0.0001
2024-05-13 2024-03-31 13F MARINEMAX COM 567908108 15,321 -12,088 -44.10 510 -52.25 0.0001
2024-02-09 2023-12-31 13F MARINEMAX COM 567908108 27,409 25,662 1,468.92 1,066 1,770.18 0.0003
2023-11-09 2023-09-30 13F MARINEMAX COM 567908108 1,747 0 0.00 57 -3.39 0.0000
2023-08-11 2023-06-30 13F MARINEMAX COM 567908108 1,747 -10,825 -86.10 60 -83.66 0.0000
2023-05-12 2023-03-31 13F MARINEMAX COM 567908108 12,572 -2,985 -19.19 361 -25.57 0.0001
2023-02-08 2022-12-31 13F MARINEMAX COM 567908108 15,557 -135,232 -89.68 486 -89.20 0.0002
2022-11-10 2022-09-30 13F MARINEMAX COM 567908108 150,789 45,658 43.43 4,492 18.27 0.0020
2022-08-10 2022-06-30 13F MARINEMAX COM 567908108 105,131 60,696 136.60 3,798 112.30 0.0016
2022-05-16 2022-03-31 13F MARINEMAX COM 567908108 44,435 -15,589 -25.97 1,789 -49.51 0.0006
2022-02-14 2021-12-31 13F MARINEMAX COM 567908108 60,024 24,491 68.92 3,543 105.51 0.0010
2021-11-15 2021-09-30 13F MARINEMAX COM 567908108 35,533 13,614 62.11 1,724 61.42 0.0005
2021-08-13 2021-06-30 13F MARINEMAX COM 567908108 21,919 -12,901 -37.05 1,068 -37.87 0.0003
2021-05-12 2021-03-31 13F MARINEMAX COM 567908108 34,820 5,934 20.54 1,719 69.86 0.0006
2021-02-11 2020-12-31 13F MARINEMAX COM 567908108 28,886 19,285 200.86 1,012 309.72 0.0003
2020-11-12 2020-09-30 13F MARINEMAX COM 567908108 9,601 2,327 31.99 247 51.53 0.0001
2020-07-31 2020-06-30 13F MARINEMAX COM 567908108 7,274 6,747 1,280.27 163 3,160.00 0.0001
2020-05-01 2020-03-31 13F MARINEMAX COM 567908108 527 -22,584 -97.72 5 -98.70 0.0000
2020-02-14 2019-12-31 13F MARINEMAX COM 567908108 23,111 22,584 4,285.39 386 4,725.00 0.0001
2019-11-14 2019-09-30 13F MARINEMAX COM 567908108 527 -8,205 -93.96 8 -94.44 0.0000
2019-08-14 2019-06-30 13F MARINEMAX COM 567908108 8,732 323 3.84 144 -10.56 0.0001
2019-05-14 2019-03-31 13F MARINEMAX COM 567908108 8,409 -1,128 -11.83 161 -8.00 0.0001
2019-02-14 2018-12-31 13F MARINEMAX COM 567908108 9,537 8,095 561.37 175 483.33 0.0001
2018-11-14 2018-09-30 13F MARINEMAX COM 567908108 1,442 -7,014 -82.95 30 -81.25 0.0000
2018-08-14 2018-06-30 13F MARINEMAX COM 567908108 8,456 7,419 715.43 160 700.00 0.0001
2018-05-15 2018-03-31 13F MARINEMAX COM 567908108 1,037 -1,710 -62.25 20 -61.54 0.0000
2018-02-14 2017-12-31 13F MARINEMAX COM 567908108 2,747 1,291 88.67 52 116.67 0.0000
2017-11-14 2017-09-30 13F MARINEMAX COM 567908108 1,456 829 132.22 24 100.00 0.0000
2017-11-14 2017-06-30 13F/A-1 MARINEMAX COM 567908108 627 -9,070 -93.53 12 -94.29 0.0000
2017-08-14 2017-06-30 13F MARINEMAX COM 567908108 627 -9,070 12
2017-11-14 2017-03-31 13F/A-1 MARINEMAX COM 567908108 9,697 6,180 175.72 210 208.82 0.0001
2017-05-12 2017-03-31 13F MARINEMAX COM 567908108 9,697 6,180 210
2017-02-14 2016-12-31 13F MARINEMAX COM 567908108 3,517 576 19.59 68 9.68 0.0000
2016-11-14 2016-09-30 13F MARINEMAX COM 567908108 2,941 1,767 150.51 62 210.00 0.0000
2016-08-12 2016-06-30 13F MARINEMAX COM 567908108 1,174 -126 -9.69 20 -23.08 0.0000
2016-05-12 2016-03-31 13F MARINEMAX COM 567908108 1,300 -442 -25.37 26 -18.75 0.0000
2016-02-16 2015-12-31 13F MARINEMAX COM 567908108 1,742 458 35.67 32 77.78 0.0000
2015-11-13 2015-09-30 13F MARINEMAX COM 567908108 1,284 5 0.39 18 -40.00 0.0000
2015-08-14 2015-06-30 13F MARINEMAX COM 567908108 1,279 -909 -41.54 30 -48.28 0.0000
2015-05-14 2015-03-31 13F MARINEMAX COM 567908108 2,188 1,188 118.80 58 190.00 0.0000
2015-02-17 2014-12-31 13F MARINEMAX COM 567908108 1,000 1,000 20 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2015-05-14 2015-03-31 13F MARINEMAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-17 2014-12-31 13F MARINEMAX COM Call 900 18 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.