Malibu Boats
MBUU
135 hedge funds and large institutions have $499M invested in Malibu Boats in 2026 Q1 according to their latest regulatory filings, with 20 funds opening new positions, 47 increasing their positions, 46 reducing their positions, and 25 closing their positions.
2.09% more ownership
Funds ownership: 101.45% → 103.54% (+2.1%)
2% more repeat investments, than reductions
Existing positions increased: 47 | Existing positions reduced: 46
6% less funds holding
Funds holding: 143 → 135 (-8)
9% less capital invested
Capital invested by funds: $550M → $499M (-$51M)
20% less first-time investments, than exits
New positions opened: 20 | Existing positions closed: 25
49% less call options, than puts
Call options by funds: $1.1M | Put options by funds: $2.16M
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
William Blair Investment Management
Chicago,
Illinois
|
+$14.2M |
| 2 |
BCM
Bridgeway Capital Management
Houston,
Texas
|
+$3.81M |
| 3 |
Bank of America
Charlotte,
North Carolina
|
+$3.15M |
| 4 |
LCM
Landscape Capital Management
Englewood,
New Jersey
|
+$2.92M |
| 5 |
EF
Empowered Funds
Havertown,
Pennsylvania
|
+$2.67M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$8.49M |
| 2 |
Ameriprise
Minneapolis,
Minnesota
|
-$8.15M |
| 3 |
OAM
Oberweis Asset Management
Lisle,
Illinois
|
-$6.89M |
| 4 |
Capital World Investors
Los Angeles,
California
|
-$2.69M |
| 5 |
CB
Cooke & Bieler
Philadelphia,
Pennsylvania
|
-$2.35M |
MBUU Hedge Fund Activity: Q1 2026 in Review
135 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Malibu Boats (MBUU) for Q1 2026, worth a combined $499M — down 9.3% from $550M a quarter earlier.
Sellers outnumbered buyers: 25 funds closed out of MBUU and 20 opened new positions — a net loss of 5 holders — while 46 trimmed existing stakes and 47 added.
The largest buyer was William Blair Investment Management, opening a new position worth an estimated $14.2M. The largest seller was Wellington Management Group, cutting an estimated $8.49M.
- 135 institutional investors held Malibu Boats (MBUU) as of Q1 2026, down from 143 in Q4 2025.
- Funds reported $499M of Malibu Boats stock for Q1 2026, down 9.3% quarter-over-quarter.
- 20 funds opened new Malibu Boats positions in Q1 2026 and 25 closed out, a net change of -5 holders.
- The largest Malibu Boats buyer in Q1 2026 was William Blair Investment Management, an estimated $14.2M added.
- The largest Malibu Boats seller in Q1 2026 was Wellington Management Group, an estimated $8.49M sold.
Based on aggregated 13F filings for Q1 2026.