bulldzr: According to the Form 4's reported today (16 individuals) the following explanation was given. They received 40-50 additional unvested shares in lieu of a cash dividend payment.
"Restricted stock units received pursuant to dividend equivalents credited on unvested restricted stock units previously granted to the reporting person. Dividend equivalents accrue with respect to unvested restricted stock units when and as cash dividends are paid on InterDigital, Inc.'s common stock."
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