MAD RIVER INVESTORS Long-Term Concentrated

Location: Boston, MA

CIK: 0001384484 · Show all filings

Period: Q2 2026 (← Previous)

Filing Date: Aug 3, 2026

Total Value: $268M (99.8% shares, 0.2% debt)

Holdings (30)

New Positions (2)

Unchanged Positions (18)

TPL TEXAS PACIFIC LAND CORPORATI 46.6%
Value $125M Shares 285,330 Est. Cost $253.85 Unrealized
PBT PERMIAN BASIN RTY TR 9.4%
Value $25.17M Shares 1,005,152 Est. Cost $12.95 Unrealized
LB LANDBRIDGE COMPANY LLC 7.9%
Value $21.23M Shares 267,953 Est. Cost $36.49 Unrealized
GBTC GRAYSCALE BITCOIN TRUST ETF 6.1%
Value $16.39M Shares 360,139 Est. Cost $60.50 Unrealized
MSB MESABI TR 3.1%
Value $8.19M Shares 323,735 Est. Cost $23.73 Unrealized
HE HAWAIIAN ELEC INDS INC MTN B 6.7%
Value $17.88M Shares 1,321,850 Est. Cost $10.29 Unrealized
PANW PALO ALTO NETWORKS INC 0.7%
Value $1.87M Shares 5,484 Est. Cost $191.42 Unrealized
FBTC FIDELITY WISE ORIGIN BITCOIN 1.3%
Value $3.592M Shares 70,369 Est. Cost $62.06 Unrealized
BTC GRAYSCALE BITCOIN MINI TR ET 0.8%
Value $2.115M Shares 81,517 Est. Cost $41.74 Unrealized
CBOE CBOE GLOBAL MKTS INC 0.6%
Value $1.627M Shares 6,705 Est. Cost $121.44 Unrealized
UNH UNITEDHEALTH GROUP INC 0.3%
Value $707K Shares 1,700 Est. Cost $298.94 Unrealized
CSCO CISCO SYS INC 0.3%
Value $705K Shares 6,000 Est. Cost $67.38 Unrealized
AAPL APPLE INC 0.5%
Value $1.461M Shares 5,050 Est. Cost $226.42 Unrealized
CINF CINCINNATI FINL CORP 0.2%
Value $667K Shares 3,600 Est. Cost $150.23 Unrealized
ETN EATON CORP PLC 0.2%
Value $511K Shares 1,200 Est. Cost $363.27 Unrealized
RLI RLI CORP 0.1%
Value $354K Shares 6,000 Est. Cost $42.27 Unrealized
JNJ JOHNSON & JOHNSON 0.1%
Value $305K Shares 1,200 Est. Cost $169.51 Unrealized
ORCL ORACLE CORP 0.4%
Value $1.18M Shares 8,050 Est. Cost $254.17 Unrealized