MAD RIVER INVESTORS
All 13F Filings
- Location
- Boston, MA
- Most recent 13F
- Q3 2026
- Holdings value ($000)
- 245,689
- Description
- —
- Website
- —
- Founded
- —
- Chairman
- —
- CEO
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- All SEC filings
- View on sec.gov
Sector allocation over time (stocks only)
Stacked by quarter. Hover to see detailed sector breakdown for any quarter.
| Quarter | Date Filed | Holdings | Value ($000) | Form Type | Name |
|---|---|---|---|---|---|
| Q3 2026 | 10/27/2026 | 31 | 245,689 | 13F-HR | MAD RIVER INVESTORS |
| Q2 2026 | 8/3/2026 | 30 | 268,106 | 13F-HR | MAD RIVER INVESTORS |
| Q1 2026 | 4/23/2026 | 32 | 277,870 | 13F-HR | MAD RIVER INVESTORS |
| Q4 2025 | 2/6/2026 | 35 | 219,624 | 13F-HR | MAD RIVER INVESTORS |
| Q3 2025 | 10/14/2025 | 38 | 233,754 | 13F-HR | MAD RIVER INVESTORS |
| Q2 2025 | 7/8/2025 | 24 | 223,277 | 13F-HR | MAD RIVER INVESTORS |
| Q1 2014 | 5/6/2014 | 32 | 130,835 | 13F-HR | MAD RIVER INVESTORS |
| Q4 2013 | 1/28/2014 | 32 | 134,242 | 13F-HR | MAD RIVER INVESTORS |
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Money flow by instrument (QoQ, ex-options)
Derivatives reported exposure ($000):
436
(0.2% of total reported value)
· QoQ Δ:
-224
| Type | Value ($000) | Share % | Inflow | Outflow | Net |
|---|---|---|---|---|---|
| Stocks | 220.6 K | 89.9% | 0 | 27.96 K | -27.96 K |
| ETFs | 24.68 K | 10.1% | 5.77 K | 0 | 5.77 K |
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Fund Snapshot
Q3 2026
Latest filed
10/27/2026
Total value ($000)
245,689
Holdings
31
QoQ value change ($000)
-22,417
(-8.4%)
Value = total reported 13F value ($000), Holdings = number of positions.
13F Value over time
Holdings count over time
Sector allocation (latest, stocks only)
Methodology:
sector allocation is stocks-only;
instrument flow table is ex-options;
options exposure is shown separately.
Details.