If Scott Pumper actually had millions of shares he would be considered an insider and as such would need to disclose and file with the SEC for all transactions. As it stands he doesn't have millions of shares, he does have a decent amount as listed in SEC filings, but I doubt he's 'dumping' anything since that wouldn't accomplish much.
It's just EOY selling, I've been thinking of that myself to offset some other gains I've had, but I've yet to pull the trigger.
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