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  Tellabs, Inc. (TLAB)
← All TLAB superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2013   Q4 0 0.00 Sell 100.00% 1.70 $2.17–2.48 · VW $2.36i SEC
2013   Q3 36,512,677 1.70 $2.27 $82,884,000 SEC
2013   Q2 36,512,677 1.53 Add 3.17% 0.05 $1.90–2.27 · VW $2.05i $72,295,000 SEC
2013   Q1 35,389,450 1.75 Add 0.61% 0.01 $2.00–2.36 · VW $2.15i $73,963,000 SEC
2012   Q4 35,174,150 2.18 Add 735.03% 1.92 $2.26–3.63 · VW $2.72i $80,197,000 SEC
2012   Q2 4,212,318 16.49 Reduce 82.99% 2.38 $3.19–4.10 · VW $3.54i $7,005,821,045,423,000 SEC
2012   Q1 24,760,217 2.87 Reduce 1.70% 0.05 $3.75–4.41 · VW $4.07i $100,279,000 SEC
2011   Q4 25,187,955 3.13 Reduce 1.36% 0.05 $3.78–4.75 · VW $4.19i $101,760,000 SEC
2011   Q3 25,535,230 3.36 Add 22.73% 0.62 $3.67–4.68 · VW $4.21i $109,546,000 SEC
2011   Q2 20,806,142 2.32 Add 5.44% 0.12 $3.98–5.47 · VW $4.69i $95,917,000 SEC
2011   Q1 19,732,920 2.27 Add 15.95% 0.31 $4.87–7.31 · VW $5.81i $103,400,000 SEC
2010   Q4 17,018,591 2.54 Add 0.75% 0.02 $6.28–8.08 · VW $7.05i $115,386,000 SEC
2010   Q3 16,892,241 2.93 Reduce 0.10% <0.01 $6.10–8.19 · VW $7.25i $125,847,000 SEC
2010   Q2 16,908,466 2.80 Reduce 29.32% 1.12 $6.15–9.45 · VW $7.33i $108,046,000 SEC
2010   Q1 23,924,248 3.82 Reduce 3.11% 0.09 $5.68–7.78 · VW $7.01i $181,106,000 SEC
2009   Q4 24,693,229 3.03 Add 2.23% 0.07 $5.36–7.36 · VW $6.13i $140,258,000 SEC
2009   Q3 24,154,479 3.55 Reduce 2.48% 0.09 $4.96–7.70 · VW $6.53i $167,149,000 SEC
2009   Q2 24,768,804 3.69 Reduce 22.15% 0.97 $4.45–6.02 · VW $5.40i $141,926,000 SEC
2009   Q1 31,816,993 4.40 Buy 4.40 $3.52–4.78 · VW $4.29i $145,722,000 SEC
2008   Q4 0 0.00 Sell 100.00% 6.13 $3.10–4.56 · VW $3.93i SEC
2008   Q2 116,024 6.13 Reduce 8.24% 0.47 $4.60–6.32 · VW $5.19i $24,951,431 SEC
2008   Q1 126,438 5.69 Reduce 4.25% 0.21 $5.09–7.21 · VW $5.92i $23,199,631 SEC
2007   Q4 132,057 4.95 Add 8.46% 0.39 $6.52–9.68 · VW $7.58i $20,192,231 SEC
2007   Q3 121,760 3.63 Reduce 4.95% 0.16 $9.31–13.67 · VW $10.83i $12,789,929,000 SEC
2007   Q2 128,097 3.17 Add 23.06% 0.59 $9.56–11.44 · VW $10.59i $11,904,904 SEC
2007   Q1 104,094 3.12 Reduce 3.73% 0.09 $9.72–11.11 · VW $10.24i $10,514,507,000 SEC
2006   Q4 108,131 2.52 Buy 2.52 $9.65–11.74 · VW $10.55i $10,539,130 SEC
2006   Q3 0 0.00 Sell 100.00% 2.58 $8.84–13.52 · VW $11.11i SEC
2006   Q2 129,450 2.58 Reduce 17.87% 0.54 $12.69–17.28 · VW $14.43i $9,725,743 SEC
2006   Q1 157,607 3.04 Add 36.11% 0.81 $10.43–16.04 · VW $14.12i $9,912,368 SEC
2005   Q4 115,794 3.36 Add 2.26% 0.07 $8.73–11.49 · VW $10.37i $10,623,296 SEC
2005   Q3 113,239 3.52 Add 21.02% 0.61 $8.40–10.60 · VW $9.84i $10,764,143 SEC
2005   Q2 93,573 0.47 Add 23.69% 0.09 $6.56–9.15 · VW $8.14i $1,075,556,000 SEC
2005   Q1 75,651 0.48 Reduce 100.00% $6.88–9.28 · VW $7.82i $1,036,309,000 SEC
2004   Q4 17,021,670,794 0.00 $15,433,812 SEC