(Harvest) On May 15th, Bill Ackman’s firm Pershing Square filed its quarterly Form 13F regulatory filing . I reviewed the filing to gain a glimpse into the firm’s large portfolio. Pershing Square’s stock portfolio totals $4.8 billion according to the latest filing. The list value of stock holdings is down -17.7% when compared to the last quarter. As a benchmark, the S&P 500 was down 1.2% over the same period.