Malibu Boats, Inc.
MX ˙ BMV ˙ US56117J1007
SecurityMX:MBUU / Malibu Boats, Inc.
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership129,094 shares
Latest Disclosed Value $ 3,346,116
Goldman Sachs Group Inc ownership in MBUU / Malibu Boats, Inc.

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 129,094 shares of Malibu Boats, Inc. (MX:MBUU) valued at $3,346,116 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 140,150 shares of Malibu Boats, Inc.. This represents a change in shares of -7.89% during the quarter.

Goldman Sachs Group Inc has a history of taking positions in derivatives of the underlying security (MBUU) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

MX:MBUU / Malibu Boats, 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)
2026-05-15 2026-03-31 13F MALIBU BOATS CMN 56117J100 129,094 -11,056 -7.89 3,346 -15.36 0.0001
2026-02-10 2025-12-31 13F MALIBU BOATS CMN 56117J100 140,150 -12,457 -8.16 3,954 -20.17 0.0005
2025-11-14 2025-09-30 13F MALIBU BOATS CMN 56117J100 152,607 43,937 40.43 4,952 45.43 0.0006
2025-08-14 2025-06-30 13F MALIBU BOATS CMN 56117J100 108,670 29,125 36.61 3,406 39.55 0.0005
2025-06-27 2025-03-31 13F/A-2 MALIBU BOATS CMN 56117J100 79,545 -105,082 -56.92 2,440 -64.84 0.0004
2025-05-16 2025-03-31 13F/A-1 MALIBU BOATS CMN 56117J100 79,545 -105,082 2,440 0.0001
2025-05-09 2025-03-31 13F MALIBU BOATS CMN 56117J100 79,545 -105,082 2,440 0.0001
2025-02-11 2024-12-31 13F MALIBU BOATS CMN 56117J100 184,627 -71,120 -27.81 6,940 -30.08 0.0011
2024-11-14 2024-09-30 13F MALIBU BOATS CMN 56117J100 255,747 73,710 40.49 9,926 55.61 0.0016
2024-08-13 2024-06-30 13F MALIBU BOATS CMN 56117J100 182,037 64,602 55.01 6,379 25.50 0.0011
2024-05-15 2024-03-31 13F MALIBU BOATS CMN 56117J100 117,435 57,488 95.90 5,083 54.66 0.0009
2024-05-14 2023-12-31 13F/A-2 MALIBU BOATS CMN 56117J100 59,947 -87,394 -59.31 3,286 -54.50 0.0006
2024-03-01 2023-12-31 13F/A-1 MALIBU BOATS CMN 56117J100 59,947 -87,394 3,286 0.0006
2024-02-13 2023-12-31 13F MALIBU BOATS CMN 56117J100 59,947 -87,394 3,286 0.0006
2024-05-15 2023-09-30 13F/A-1 MALIBU BOATS CMN 56117J100 147,341 5,152 3.62 7,223 -13.41 0.0015
2023-11-14 2023-09-30 13F MALIBU BOATS CMN 56117J100 147,341 5,152 7,223 0.0015
2024-05-14 2023-06-30 13F/A-1 MALIBU BOATS CMN 56117J100 142,189 8,925 6.70 8,341 10.87 0.0018
2023-08-15 2023-06-30 13F MALIBU BOATS CMN 56117J100 142,189 8,925 8,341 0.0017
2024-05-14 2023-03-31 13F/A-1 MALIBU BOATS CMN 56117J100 133,264 -62,298 -31.86 7,523 -27.83 0.0017
2023-05-11 2023-03-31 13F MALIBU BOATS CMN 56117J100 133,264 -62,298 7,523 0.0016
2024-05-14 2022-12-31 13F/A-1 MALIBU BOATS CMN 56117J100 195,562 2,649 1.37 10,423 115,711.11 0.0026
2023-02-13 2022-12-31 13F MALIBU BOATS CMN 56117J100 195,562 2,649 10,423 0.0023
2024-05-14 2022-09-30 13F/A-1 MALIBU BOATS CMN 56117J100 192,913 110,340 133.63 9 125.00 0.0023
2022-11-14 2022-09-30 13F MALIBU BOATS CMN 56117J100 192,913 110,340 9,258 0.0021
2024-05-14 2022-06-30 13F/A-2 MALIBU BOATS CMN 56117J100 82,573 13,114 18.88 4 -99.90 0.0011
2022-08-18 2022-06-30 13F/A-1 MALIBU BOATS CMN 56117J100 82,573 13,114 4,353 0.0010
2022-08-15 2022-06-30 13F MALIBU BOATS CMN 56117J100 82,573 13,114 4,353 0.0010
2022-05-16 2022-03-31 13F MALIBU BOATS CMN 56117J100 69,459 11,704 20.26 4,030 1.51 0.0008
2022-02-17 2021-12-31 13F/A-1 MALIBU BOATS CMN 56117J100 57,755 15,503 36.69 3,970 34.26 0.0008
2022-02-14 2021-12-31 13F MALIBU BOATS CMN 56117J100 57,755 15,503 3,970 0.0002
2022-01-20 2021-09-30 13F/A-1 MALIBU BOATS CMN 56117J100 42,252 -7,750 -15.50 2,957 -19.36 0.0006
2021-11-10 2021-09-30 13F MALIBU BOATS CMN 56117J100 42,252 -7,750 2,957 0.0002
2021-08-13 2021-06-30 13F MALIBU BOATS CMN 56117J100 50,002 -255,937 -83.66 3,667 -84.96 0.0008
2021-05-17 2021-03-31 13F MALIBU BOATS CMN 56117J100 305,939 6,434 2.15 24,377 30.35 0.0061
2021-02-12 2020-12-31 13F MALIBU BOATS CMN 56117J100 299,505 -34,664 -10.37 18,701 12.92 0.0048
2020-11-13 2020-09-30 13F MALIBU BOATS CMN 56117J100 334,169 -140,457 -29.59 16,562 -32.83 0.0047
2020-08-12 2020-06-30 13F MALIBU BOATS CMN 56117J100 474,626 326,771 221.01 24,657 479.35 0.0075
2020-05-15 2020-03-31 13F MALIBU BOATS CMN 56117J100 147,855 21,366 16.89 4,256 -17.82 0.0015
2020-02-14 2019-12-31 13F MALIBU BOATS CMN 56117J100 126,489 16,529 15.03 5,179 53.54 0.0013
2019-11-14 2019-09-30 13F MALIBU BOATS CMN 56117J100 109,960 38,583 54.06 3,373 21.64 0.0010
2019-08-14 2019-06-30 13F MALIBU BOATS CMN 56117J100 71,377 17,663 32.88 2,773 30.43 0.0008
2019-05-15 2019-03-31 13F MALIBU BOATS CMN 56117J100 53,714 -147,496 -73.30 2,126 -69.64 0.0006
2019-02-14 2018-12-31 13F MALIBU BOATS CMN 56117J100 201,210 40,721 25.37 7,002 -20.26 0.0022
2018-11-14 2018-09-30 13F MALIBU BOATS CMN 56117J100 160,489 -24,238 -13.12 8,781 13.33 0.0023
2018-08-14 2018-06-30 13F MALIBU BOATS CMN 56117J100 184,727 95,421 106.85 7,748 161.23 0.0021
2018-05-15 2018-03-31 13F MALIBU BOATS CMN 56117J100 89,306 -122,352 -57.81 2,966 -52.86 0.0008
2018-02-14 2017-12-31 13F MALIBU BOATS CMN 56117J100 211,658 2,122 1.01 6,292 -5.08 0.0015
2017-11-14 2017-09-30 13F MALIBU BOATS CMN 56117J100 209,536 131,727 169.30 6,629 229.31 0.0016
2017-08-14 2017-06-30 13F MALIBU BOATS CMN 56117J100 77,809 49,198 171.95 2,013 213.55 0.0005
2017-05-18 2017-03-31 13F/A-1 MALIBU BOATS CMN 56117J100 28,611 317 1.12 642 18.89 0.0002
2017-05-15 2017-03-31 13F MALIBU BOATS CMN 56117J100 28,611 642
2017-02-14 2016-12-31 13F MALIBU BOATS CMN 56117J100 28,294 -37,838 -57.22 540 -45.18 0.0002
2016-11-14 2016-09-30 13F MALIBU BOATS CMN 56117J100 66,132 24,286 58.04 985 95.05 0.0003
2016-08-15 2016-06-30 13F MALIBU BOATS CMN 56117J100 41,846 14,901 55.30 505 14.25 0.0002
2016-05-13 2016-03-31 13F MALIBU BOATS CMN 56117J100 26,945 26,945 0.00 442 0.0001
2016-02-16 2015-12-31 13F MALIBU BOATS CMN 56117J100 0 -23,139 -100.00 0 -100.00
2015-11-13 2015-09-30 13F MALIBU BOATS CMN 56117J100 23,139 7,859 51.43 323 5.21 0.0001
2015-08-14 2015-06-30 13F MALIBU BOATS CMN 56117J100 15,280 15,280 307 0.0001
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
(%)
2018-02-14 2017-12-31 13F MALIBU BOATS CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F MALIBU BOATS CMN Call 700 22 n/a n/a n/a
2017-08-14 2017-06-30 13F MALIBU BOATS CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-05-18 2017-03-31 13F/A MALIBU BOATS CMN Call 1,000 0.00 22 15.79 n/a n/a n/a
2017-05-15 2017-03-31 13F MALIBU BOATS CMN Call 1,000 22 n/a n/a n/a
2017-02-14 2016-12-31 13F MALIBU BOATS CMN Call 1,000 -68.75 19 -60.42 n/a n/a n/a
2016-11-14 2016-09-30 13F MALIBU BOATS CMN Call 3,200 0.00 48 23.08 n/a n/a n/a
2016-08-15 2016-06-30 13F MALIBU BOATS CMN Call 3,200 0.00 39 -25.00 n/a n/a n/a
2016-05-13 2016-03-31 13F MALIBU BOATS CMN Call 3,200 52 n/a n/a n/a
2015-11-13 2015-09-30 13F MALIBU BOATS CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F MALIBU BOATS CMN Call 100 2 n/a n/a n/a
Disclosed Put 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
(%)
2018-02-14 2017-12-31 13F MALIBU BOATS CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F MALIBU BOATS CMN Put 400 13 n/a n/a n/a
2016-11-14 2016-09-30 13F MALIBU BOATS CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-15 2016-06-30 13F MALIBU BOATS CMN Put 1,900 72.73 23 27.78 n/a n/a n/a
2016-05-13 2016-03-31 13F MALIBU BOATS CMN Put 1,100 18 n/a n/a n/a
2016-02-16 2015-12-31 13F MALIBU BOATS CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F MALIBU BOATS CMN Put 1,100 -50.00 15 -65.91 n/a n/a n/a
2015-08-14 2015-06-30 13F MALIBU BOATS CMN Put 2,200 44 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.