Berkshire Partners made two significant buys. Earlier in the week, the company bought 205,409 shares of the stock at prices that fell between $39.02 and $39.48 apiece. The total for that trade came to $8 million. Later in the week, the company bought an additional 234,416 shares at share prices from $41.50 to $42.48, which cost an additional $10 million. The stock closed on Friday at $42.31, so the timing looks very good