Martin Whitman - Third Avenue Management
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    53
Portfolio value:    $616,036,133
Holdings Activity Buys Sells    History
Holding/activity history for  GSI Group Inc. (0814429D)
← All 0814429D superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2009   Q2 0 0.00 Sell 100.00% 0.02 SEC
2009   Q1 730,434 0.02 Buy 0.02 $0.95 $694,000 SEC
2008   Q4 0 0.00 Sell 100.00% 0.48 SEC
2008   Q2 15,175 0.48 Reduce 0.26% <0.01 $128.86 $1,955,523 SEC
2008   Q1 15,214 0.48 Reduce 17.78% 0.09 $128.53 $1,955,523 SEC
2007   Q4 18,505 0.49 Reduce 39.68% 0.31 $108.23 $2,002,748 SEC
2007   Q3 30,679 0.77 Add 4.44% 0.03 $88,496.50 $2,714,984,000 SEC
2007   Q2 29,374 0.80 Reduce 1.52% 0.01 $102.15 $3,000,431 SEC
2007   Q1 29,826 0.89 Add 5.88% 0.05 $100,907.13 $3,009,656,000 SEC
2006   Q4 28,170 0.69 Buy 0.69 $103.20 $2,907,156 SEC
2006   Q3 0 0.00 Sell 100.00% 0.61 SEC
2006   Q2 19,790 0.61 Add 30.58% 0.14 $116.41 $2,303,801 SEC
2006   Q1 15,155 0.42 Add 1.75% <0.01 $90.50 $1,371,504 SEC
2005   Q4 14,895 0.43 Add 230.63% 0.30 $92.08 $1,371,504 SEC
2005   Q3 4,505 0.14 Buy 0.14 $95.69 $431,086 SEC