Lehman Brothers Financial SA (LEHNQ)

[goodietime]

That would be my guess. Years ago I had thousands of WAMU P's removed by one Broker. Another Broker removed thousands of WAMU Bonds.
Fortunately, I keep an eye on my accounts and had them put back.
Not sure if there is any time limit on having a transaction like this reversed?

And yes it was under the 'guise' of 'cleaning up 'worthless positions'.