Famous investment fund manager Ken Heebner, who scored big in the early part of this decade by betting against technology stocks ahead of their fall, has divested himself of nearly all his holdings of Apple and HP stock, along with SanDisk and lesser-known semiconductor makers Avago and Micron Technology, SEC filings show. No reason for the sell-off has been publicly announced, but Heebner's move -- which actually happened near the end of last quarter -- was revealed on Friday, sparking a sudden three-percent drop in AAPL. Hewlett-Packard's stock also suffered a simil