In trading on Tuesday, shares of Biogen Inc (Symbol: BIIB) touched a new 52-week high of $354.28/share. That’s a 45.03% rise, or $110 per share from the 52-week low of $244.28 set back on 05/31/2017. That means at today’s intraday high, any investor who purchased BIIB stock any time over the past 52 weeks has an unrealized gain, including company insiders.

Over the past six months, insiders have been scooping up shares, and those bets are now paying off handsomely. As summarized by the table below, BIIB has seen 2 different instances of insiders buying over the trailing six month period.

The chart below shows where BIIB has traded over the past year, with the 50-day and 200-day moving averages included. In afternoon trading on Tuesday, BIIB shares are changing hands at $348.04/share, slightly below the new 52-week high.

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