Wells fargo bought wilmington position in cyanotech, no suspicion at all. Cyanotech is trying to reach another level , increasing is production and marketing, and growing up Nutrex hawaii brand. Like an happy user of both spirulina and bioastin, i see shine future here.
There is a Form 13G dated October 31, 2012 indicating that
Wells FARGO (not Well CAPITAL MANAGEMENT) has:
"Sole Voting Power": 630,769 shares
"Sole Dispositive Power": 938,419 shares
The latter is 17.25% of the shares.
By contrast, the Bloomberg terminal's "HDS" function showing the largest holders of the stock indicates
Wells CAPITAL MANAGEMENT 307,650 (this is John Paulson's hedge fund).
These appear to be shares disposed of previously in the year by Wilmington.
The Bloomberg terminal also indicates that Wilmington Trust most recently reduced its position by 630,769 shares. This is the exact same amount as the Wells Fargo "Sole Voting Power." It is possible that these banks (which operate as "trust" companies) simply changed places when a trustee of some trust changed trust administrators.