Walter M Fiederowicz
CIK 1182406 · View on SEC EDGAR ↗
Insider
First SEC filing: May 12, 2006 · Latest: May 12, 2006
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 40 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
40 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 17, 2025 | PLAB | S | 5,000 | $17.79 | $88,950 | 5,000 Direct | -50.00% | Disposed | 72.6% (price as of 2026-08-21) |
| April 15, 2025 | PLAB | S | 7,548 | $17.87 | $134,883 | 10,000 Direct | -43.01% | Disposed | 71.9% (price as of 2026-08-21) |
| April 9, 2025 | PLAB | S | 7,000 | $18.88 | $132,160 | 17,548 Direct | -28.52% | Disposed | 62.7% (price as of 2026-08-21) |
| April 3, 2025 | PLAB | S | 5,000 | $19.16 | $95,800 | 24,548 Direct | -16.92% | Disposed | 60.3% (price as of 2026-08-21) |
| March 25, 2025 | PLAB | S | 10,000 | $21.63 | $216,300 | 29,548 Direct | -25.29% | Disposed | 42.0% (price as of 2026-08-21) |
| Jan. 3, 2025 | PLAB | S | 10,000 | $24.13 | $241,300 | 32,000 Direct | -23.81% | Disposed | 27.3% (price as of 2026-08-21) |
| Dec. 24, 2024 | PLAB | S | 10,000 | $24.01 | $240,100 | 50,000 Direct | -16.67% | Disposed | 27.9% (price as of 2026-08-21) |
| Feb. 10, 2020 | PLAB | S 10b5-1 | 9,000 | $14.06 | $126,540 | 15,000 Direct | -37.50% | Disposed | 118.4% (price as of 2026-08-21) |
| Feb. 3, 2020 | PLAB | S 10b5-1 | 3,000 | $12.98 | $38,940 | 24,000 Direct | -11.11% | Disposed | 136.6% (price as of 2026-08-21) |
| Jan. 17, 2020 | PLAB | S 10b5-1 | 3,000 | $15.12 | $45,360 | 27,000 Direct | -10.00% | Disposed | 103.1% (price as of 2026-08-21) |
| Dec. 2, 2019 | PLAB | S 10b5-1 | 15,000 | $11.70 | $175,500 | 6,000 Direct | -71.43% | Disposed | 162.5% (price as of 2026-08-21) |
| Nov. 1, 2019 | PLAB | S 10b5-1 | 15,000 | $11.91 | $178,650 | 21,000 Direct | -41.67% | Disposed | 157.9% (price as of 2026-08-21) |
| Oct. 1, 2019 | PLAB | S 10b5-1 | 5,000 | $10.84 | $54,200 | 36,000 Direct | -12.20% | Disposed | 183.3% (price as of 2026-08-21) |
| Sept. 3, 2019 | PLAB | S 10b5-1 | 5,000 | $10.70 | $53,500 | 41,000 Direct | -10.87% | Disposed | 187.0% (price as of 2026-08-21) |
| Aug. 1, 2019 | PLAB | S 10b5-1 | 5,000 | $9.71 | $48,550 | 46,000 Direct | -9.80% | Disposed | 216.3% (price as of 2026-08-21) |
| July 5, 2019 | PLAB | S 10b5-1 | 2,500 | $8.43 | $21,075 | 51,000 Direct | -4.67% | Disposed | 264.3% (price as of 2026-08-21) |
| July 5, 2019 | PLAB | S 10b5-1 | 2,500 | $8.50 | $21,250 | 53,500 Direct | -4.46% | Disposed | 261.3% (price as of 2026-08-21) |
| Jan. 14, 2019 | PLAB | S | 21,000 | $10.32 | $216,720 | 27,000 Direct | -43.75% | Disposed | 197.6% (price as of 2026-08-21) |
| Sept. 4, 2018 | PLAB | S 10b5-1 | 3,000 | $10.59 | $31,770 | 21,000 Direct | -12.50% | Disposed | 190.0% (price as of 2026-08-21) |
| Aug. 22, 2018 | PLAB | S 10b5-1 | 3,000 | $10.00 | $30,000 | 24,000 Direct | -11.11% | Disposed | 207.1% (price as of 2026-08-21) |
| May 22, 2018 | PLAB | S 10b5-1 | 3,000 | $10.00 | $30,000 | 36,000 Direct | -7.69% | Disposed | 207.1% (price as of 2026-08-21) |
| April 11, 2018 | PLAB | S | 6,000 | $8.26 | $49,560 | 39,000 Direct | -13.33% | Disposed | 271.8% (price as of 2026-08-21) |
| Sept. 14, 2016 | PLAB | S | 21,250 | $9.95 | $211,438 | 21,000 Direct | -50.30% | Disposed | 208.6% (price as of 2026-08-21) |
| March 30, 2016 | PLAB | S | 3,000 | $10.39 | $31,170 | 21,000 Direct | -12.50% | Disposed | 195.6% (price as of 2026-08-21) |
| Jan. 7, 2015 | PLAB | S | 100 | $8.10 | $810 | 12,000 Direct | -0.83% | Disposed | 279.1% (price as of 2026-08-21) |
| Jan. 7, 2015 | PLAB | S | 2,900 | $8.03 | $23,287 | 12,100 Direct | -19.33% | Disposed | 282.4% (price as of 2026-08-21) |
| Dec. 22, 2014 | PLAB | S | 10,000 | $8.36 | $83,600 | 15,000 Direct | -40.00% | Disposed | 267.3% (price as of 2026-08-21) |
| Aug. 25, 2014 | PLAB | S | 1,039 | $9.03 | $9,382 | 6,000 Direct | -14.76% | Disposed | 240.1% (price as of 2026-08-21) |
| Aug. 25, 2014 | PLAB | S | 1,961 | $9.16 | $17,963 | 7,039 Direct | -21.79% | Disposed | 235.3% (price as of 2026-08-21) |
| June 3, 2014 | PLAB | S | 3,000 | $8.77 | $26,310 | 9,000 Direct | -25.00% | Disposed | 250.2% (price as of 2026-08-21) |
| Dec. 30, 2013 | PLAB | S | 32,000 | $8.93 | $285,760 | 12,000 Direct | -72.73% | Disposed | 243.9% (price as of 2026-08-21) |
| Dec. 19, 2013 | PLAB | S | 7,000 | $8.81 | $61,670 | 44,000 Direct | -13.73% | Disposed | 248.6% (price as of 2026-08-21) |
| Dec. 16, 2013 | PLAB | S | 7,000 | $8.82 | $61,740 | 51,000 Direct | -12.07% | Disposed | 248.2% (price as of 2026-08-21) |
| March 1, 2013 | PLAB | S | 6,500 | $6.49 | $42,185 | 46,000 Direct | -12.38% | Disposed | 373.2% (price as of 2026-08-21) |
| Dec. 18, 2012 | PLAB | S | 9,750 | $5.40 | $52,650 | 34,500 Direct | -22.03% | Disposed | 468.7% (price as of 2026-08-21) |
| Dec. 10, 2012 | PLAB | S | 4,500 | $5.43 | $24,435 | 44,250 Direct | -9.23% | Disposed | 465.6% (price as of 2026-08-21) |
| Jan. 5, 2012 | PLAB | S | 10,000 | $6.20 | $62,000 | 20,750 Direct | -32.52% | Disposed | 395.3% (price as of 2026-08-21) |
| Dec. 13, 2011 | PLAB | S | 9,000 | $6.11 | $54,990 | 22,750 Direct | -28.35% | Disposed | 402.6% (price as of 2026-08-21) |
| March 1, 2010 | PLAB | S | 3,750 | $4.58 | $17,175 | 3,750 Direct | -50.00% | Disposed | 570.5% (price as of 2026-08-21) |
| Jan. 4, 2010 | PLAB | S | 500 | $4.58 | $2,290 | 7,500 Direct | -6.25% | Disposed | 570.5% (price as of 2026-08-21) |
| Jan. 4, 2010 | PLAB | S | 3,000 | $4.57 | $13,710 | 8,000 Direct | -27.27% | Disposed | 572.0% (price as of 2026-08-21) |
| Jan. 4, 2010 | PLAB | S | 1,500 | $4.56 | $6,840 | 11,000 Direct | -12.00% | Disposed | 573.5% (price as of 2026-08-21) |
| Jan. 4, 2010 | PLAB | S | 7,500 | $4.57 | $34,275 | 12,500 Direct | -37.50% | Disposed | 572.0% (price as of 2026-08-21) |
| Jan. 4, 2010 | PLAB | S | 18,750 | $4.57 | $85,688 | 20,000 Direct | -48.39% | Disposed | 572.0% (price as of 2026-08-21) |
| July 16, 2009 | PLAB | S | 1,500 | $5.29 | $7,935 | 20,000 Direct | -6.98% | Disposed | 480.5% (price as of 2026-08-21) |
| July 16, 2009 | PLAB | S | 600 | $5.28 | $3,168 | 21,500 Direct | -2.71% | Disposed | 481.6% (price as of 2026-08-21) |
| July 16, 2009 | PLAB | S | 200 | $5.26 | $1,052 | 22,100 Direct | -0.90% | Disposed | 483.8% (price as of 2026-08-21) |
| July 16, 2009 | PLAB | S | 2,000 | $5.25 | $10,500 | 22,300 Direct | -8.23% | Disposed | 485.0% (price as of 2026-08-21) |
| July 16, 2009 | PLAB | S | 700 | $5.24 | $3,668 | 24,300 Direct | -2.80% | Disposed | 486.1% (price as of 2026-08-21) |
| July 15, 2009 | PLAB | S | 4,500 | $5.09 | $22,905 | 25,000 Direct | -15.25% | Disposed | 503.3% (price as of 2026-08-21) |
| July 2, 2007 | PLAB | S | 2,500 | $15.13 | $37,825 | 9,500 Direct | -20.83% | Disposed | 103.0% (price as of 2026-08-21) |
| July 2, 2007 | PLAB | S | 3,000 | $15.17 | $45,510 | 12,000 Direct | -20.00% | Disposed | 102.4% (price as of 2026-08-21) |
| July 2, 2007 | PLAB | S | 1,000 | $15.17 | $15,170 | 15,000 Direct | -6.25% | Disposed | 102.4% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 1,000 | $16.31 | $16,310 | 16,470 Direct | -5.72% | Disposed | 88.3% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 530 | $16.30 | $8,639 | 17,470 Direct | -2.94% | Disposed | 88.4% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 3,600 | $16.29 | $58,644 | 18,000 Direct | -16.67% | Disposed | 88.5% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 800 | $16.27 | $13,016 | 21,600 Direct | -3.57% | Disposed | 88.8% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 500 | $16.23 | $8,115 | 22,400 Direct | -2.18% | Disposed | 89.2% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 1,100 | $16.20 | $17,820 | 22,900 Direct | -4.58% | Disposed | 89.6% (price as of 2026-08-21) |
| Dec. 26, 2006 | PLAB | S | 500 | $16.15 | $8,075 | 24,000 Direct | -2.04% | Disposed | 90.2% (price as of 2026-08-21) |
Showing latest 100 of 133 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 2, 2020 | PLAB | Non-qualified Stock Options | Common Stock (12,000) | $6.14 | Jan. 3, 2022 | 12,000 | Acquired |
| June 24, 2019 | PLAB | Non-qualified Stock Options | Common Stock (35,000) | $4.42 | Dec. 21, 2019 | 35,000 | Disposed |
| Sept. 14, 2016 | PLAB | Stock Options (Right to Buy) | Common Stock (21,250) | $0.76 | Nov. 10, 2018 | 21,250 | Disposed |
| Sept. 25, 2014 | PLAB | Stock Options (Right to Buy) | Common Stock (7,000) | $0.76 | Nov. 10, 2018 | 7,000 | Disposed |
| Dec. 28, 2012 | PLAB | Stock Options (Right to Buy) | Common Stock (18,000) | $0.76 | Nov. 10, 2018 | 18,000 | Disposed |
| Jan. 3, 2012 | PLAB | Stock Options (Right to Buy) | Common Stock (12,000) | $6.14 | Jan. 3, 2022 | 12,000 | Acquired |
| June 27, 2011 | PLAB | Stock Options (Right to Buy) | Common Stock (10,000) | $0.76 | Nov. 10, 2018 | 10,000 | Disposed |
| Jan. 4, 2010 | PLAB | Stock Options (Right to Buy) | Common Stock (12,500) | $0.76 | Nov. 10, 2018 | 12,500 | Disposed |
| Jan. 4, 2010 | PLAB | Stock Options (Right to Buy) | Common Stock (6,250) | $0.76 | Nov. 10, 2018 | 6,250 | Disposed |
| Dec. 21, 2009 | PLAB | Stock Options (Right to Buy) | Common Stock (20,000) | $4.42 | Dec. 21, 2019 | 20,000 | Acquired |
| Dec. 21, 2009 | PLAB | Stock Options (Right to Buy) | Common Stock (15,000) | $4.42 | Dec. 21, 2019 | 15,000 | Acquired |
| Nov. 10, 2008 | PLAB | Stock Options (Right to Buy) | Common Stock (50,000) | $0.76 | Nov. 10, 2018 | 50,000 | Acquired |
| Nov. 10, 2008 | PLAB | Stock Options (Right to Buy) | Common Stock (25,000) | $0.76 | Nov. 10, 2018 | 25,000 | Acquired |
| May 10, 2006 | PLAB | Stock Option (Right to Buy) | Common Stock (10,000) | $12.50 | Aug. 21, 2006 | 10,000 | Disposed |
| Feb. 14, 2005 | PLAB | Common Stock | Common Stock (5,000) | $16.65 | Feb. 14, 2015 | 5,000 | Acquired |
| Jan. 17, 2005 | PLAB | Stock Option (right to buy) | Common Stock (15,000) | $14.56 | Jan. 17, 2015 | 15,000 | Acquired |
| March 3, 2004 | PLAB | Stock Option (right to buy) | Common Stock (5,000) | $17.90 | March 3, 2014 | 5,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).