Seth Klarman - Baupost Group
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    22
Portfolio value:    $5,115,380,000
Holdings Activity Buys Sells    History
Holding/activity history for  Acusphere Inc (ACUS)
← All ACUS superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2008   Q4 0 0.00 Sell 100.00% 0.08 $0.54–8.00 · VW $3.40i SEC
2008   Q3 260,058 0.08 $3.50 $910,000 SEC
2008   Q2 260,058 0.16 $7.00 $1,816,000 SEC
2008   Q1 260,058 0.15 $4.80 $1,246,000 SEC
2007   Q4 260,058 0.14 Buy 0.14 $5.50–17.30 · VW $10.38i $1,690,000 SEC
2007   Q3 0 0.00 Sell 100.00% 0.71 $12.90–22.30 · VW $16.50i SEC
2007   Q2 260,058 0.71 Add 28.99% 0.16 $20.90–42.10 · VW $29.35i $5,591,000 SEC
2007   Q1 201,610 0.95 $27.60 $5,564,000 SEC
2006   Q4 201,610 0.80 $24.40 $4,919,000 SEC
2006   Q3 201,610 1.33 $36.10 $7,278,000 SEC
2006   Q2 201,610 1.67 Reduce 0.70% 0.02 $29.90–72.90 · VW $47.83i $6,915,000 SEC
2006   Q1 203,030 3.21 $66.90 $13,583,000 SEC
2005   Q4 203,030 3.53 $53.40 $10,842,000 SEC
2005   Q3 203,030 3.34 Buy 3.34 $47.70–65.00 · VW $56.22i $11,045,000 SEC