MAD RIVER INVESTORS: WBI position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MAD RIVER INVESTORS on WBI, newest first. How the timeline and the estimate are built.
MAD RIVER INVESTORS held 267,801 WBI shares at 2026-06-30 per its 13F-HR filed 2026-08-03.
the latest 13F is the newest step
- period ended2026-06-3013F 267,801 sharesChange vs previous 13F -3,099 shares
3.43% of the 13F portfolio, value $9,177,525.
13F-HR 0001384484-26-000006 filed by MAD RIVER INVESTORS
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 270,900 sharesChange vs previous 13F +13,900 shares
2.62% of the 13F portfolio, value $7,257,419.
13F-HR 0001384484-26-000004 filed by MAD RIVER INVESTORS
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 257,000 sharesChange vs previous 13F +5,300 shares
2.34% of the 13F portfolio, value $5,142,570.
13F-HR 0001384484-26-000002 filed by MAD RIVER INVESTORS
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 251,700 sharesChange vs previous 13F not available
2.72% of the 13F portfolio, value $6,347,874.
13F-HR 0001384484-25-000009 filed by MAD RIVER INVESTORS
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).