Mitchell G Tyson
CIK 1281797 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 5, 2006 · Latest: Jan. 5, 2006
On this page
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net:
$-905,200
+ 51 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
51 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | PLAB | S | 10,000 | $42.31 | $423,100 | 33,199 Direct | -23.15% | Disposed | -25.8% (price as of 2026-08-19) |
| Jan. 6, 2026 | PLAB | S | 5,000 | $35.21 | $176,050 | 43,199 Direct | -10.37% | Disposed | -10.8% (price as of 2026-08-19) |
| Dec. 12, 2025 | PLAB | S | 5,000 | $36.17 | $180,850 | 46,927 Direct | -9.63% | Disposed | -13.2% (price as of 2026-08-19) |
| Oct. 7, 2025 | PLAB | S | 5,000 | $25.04 | $125,200 | 51,927 Direct | -8.78% | Disposed | 25.4% (price as of 2026-08-19) |
| July 10, 2025 | PLAB | S | 15,000 | $19.97 | $299,550 | 56,927 Direct | -20.85% | Disposed | 57.2% (price as of 2026-08-19) |
| Dec. 19, 2024 | PLAB | S | 20,000 | $25.06 | $501,200 | 66,379 Direct | -23.15% | Disposed | 25.3% (price as of 2026-08-19) |
| Feb. 10, 2020 | PLAB | S 10b5-1 | 3,000 | $14.14 | $42,420 | 85,379 Direct | -3.39% | Disposed | 122.1% (price as of 2026-08-19) |
| Jan. 10, 2020 | PLAB | S 10b5-1 | 3,000 | $15.09 | $45,270 | 85,379 Direct | -3.39% | Disposed | 108.1% (price as of 2026-08-19) |
| Dec. 27, 2019 | PLAB | S 10b5-1 | 750 | $15.93 | $11,948 | 73,379 Direct | -1.01% | Disposed | 97.1% (price as of 2026-08-19) |
| Nov. 27, 2019 | PLAB | S 10b5-1 | 750 | $12.01 | $9,008 | 74,129 Direct | -1.00% | Disposed | 161.4% (price as of 2026-08-19) |
| Nov. 27, 2019 | PLAB | S 10b5-1 | 1,150 | $12.00 | $13,800 | 74,879 Direct | -1.51% | Disposed | 161.7% (price as of 2026-08-19) |
| Oct. 28, 2019 | PLAB | S 10b5-1 | 750 | $12.38 | $9,285 | 74,879 Direct | -0.99% | Disposed | 153.6% (price as of 2026-08-19) |
| Oct. 28, 2019 | PLAB | S 10b5-1 | 1,150 | $12.38 | $14,237 | 75,629 Direct | -1.50% | Disposed | 153.6% (price as of 2026-08-19) |
| Sept. 27, 2019 | PLAB | S 10b5-1 | 750 | $11.15 | $8,362 | 75,629 Direct | -0.98% | Disposed | 181.6% (price as of 2026-08-19) |
| Sept. 27, 2019 | PLAB | S 10b5-1 | 1,150 | $11.15 | $12,822 | 76,379 Direct | -1.48% | Disposed | 181.6% (price as of 2026-08-19) |
| Aug. 27, 2019 | PLAB | S 10b5-1 | 750 | $9.35 | $7,012 | 76,379 Direct | -0.97% | Disposed | 235.8% (price as of 2026-08-19) |
| Aug. 27, 2019 | PLAB | S 10b5-1 | 1,150 | $9.34 | $10,741 | 77,129 Direct | -1.47% | Disposed | 236.2% (price as of 2026-08-19) |
| July 29, 2019 | PLAB | S 10b5-1 | 1,150 | $9.68 | $11,132 | 77,879 Direct | -1.46% | Disposed | 224.4% (price as of 2026-08-19) |
| July 29, 2019 | PLAB | S 10b5-1 | 750 | $9.68 | $7,260 | 77,129 Direct | -0.96% | Disposed | 224.4% (price as of 2026-08-19) |
| July 22, 2019 | PLAB | S 10b5-1 | 1,500 | $9.00 | $13,500 | 77,879 Direct | -1.89% | Disposed | 248.9% (price as of 2026-08-19) |
| June 28, 2019 | PLAB | S 10b5-1 | 1,150 | $8.50 | $9,775 | 79,379 Direct | -1.43% | Disposed | 269.4% (price as of 2026-08-19) |
| May 28, 2019 | PLAB | S 10b5-1 | 1,150 | $8.50 | $9,775 | 79,379 Direct | -1.43% | Disposed | 269.4% (price as of 2026-08-19) |
| April 29, 2019 | PLAB | S 10b5-1 | 750 | $9.42 | $7,065 | 79,379 Direct | -0.94% | Disposed | 233.3% (price as of 2026-08-19) |
| April 29, 2019 | PLAB | S 10b5-1 | 1,150 | $9.42 | $10,833 | 80,129 Direct | -1.41% | Disposed | 233.3% (price as of 2026-08-19) |
| March 27, 2019 | PLAB | S 10b5-1 | 750 | $9.26 | $6,945 | 80,129 Direct | -0.93% | Disposed | 239.1% (price as of 2026-08-19) |
| March 27, 2019 | PLAB | S 10b5-1 | 1,150 | $9.26 | $10,649 | 80,879 Direct | -1.40% | Disposed | 239.1% (price as of 2026-08-19) |
| Feb. 27, 2019 | PLAB | S 10b5-1 | 750 | $9.76 | $7,320 | 80,879 Direct | -0.92% | Disposed | 221.7% (price as of 2026-08-19) |
| Feb. 27, 2019 | PLAB | S 10b5-1 | 1,150 | $9.77 | $11,236 | 81,629 Direct | -1.39% | Disposed | 221.4% (price as of 2026-08-19) |
| Jan. 28, 2019 | PLAB | S 10b5-1 | 750 | $10.51 | $7,882 | 81,629 Direct | -0.91% | Disposed | 198.8% (price as of 2026-08-19) |
| Jan. 28, 2019 | PLAB | S 10b5-1 | 1,150 | $10.53 | $12,110 | 82,379 Direct | -1.38% | Disposed | 198.2% (price as of 2026-08-19) |
| Dec. 27, 2018 | PLAB | S 10b5-1 | 750 | $9.54 | $7,155 | 70,379 Direct | -1.05% | Disposed | 229.1% (price as of 2026-08-19) |
| Dec. 27, 2018 | PLAB | S 10b5-1 | 1,150 | $9.54 | $10,971 | 71,129 Direct | -1.59% | Disposed | 229.1% (price as of 2026-08-19) |
| Nov. 27, 2018 | PLAB | S 10b5-1 | 750 | $9.72 | $7,290 | 71,129 Direct | -1.04% | Disposed | 223.0% (price as of 2026-08-19) |
| Nov. 27, 2018 | PLAB | S 10b5-1 | 1,200 | $9.73 | $11,676 | 71,879 Direct | -1.64% | Disposed | 222.7% (price as of 2026-08-19) |
| Oct. 29, 2018 | PLAB | S 10b5-1 | 750 | $9.59 | $7,192 | 71,879 Direct | -1.03% | Disposed | 227.4% (price as of 2026-08-19) |
| Oct. 29, 2018 | PLAB | S 10b5-1 | 1,040 | $9.58 | $9,963 | 72,629 Direct | -1.41% | Disposed | 227.8% (price as of 2026-08-19) |
| Sept. 27, 2018 | PLAB | S 10b5-1 | 1,790 | $9.60 | $17,184 | 72,629 Direct | -2.41% | Disposed | 227.1% (price as of 2026-08-19) |
| Aug. 27, 2018 | PLAB | S 10b5-1 | 750 | $10.85 | $8,138 | 73,379 Direct | -1.01% | Disposed | 189.4% (price as of 2026-08-19) |
| Aug. 27, 2018 | PLAB | S 10b5-1 | 1,040 | $10.84 | $11,274 | 74,129 Direct | -1.38% | Disposed | 189.7% (price as of 2026-08-19) |
| July 31, 2018 | PLAB | S 10b5-1 | 750 | $9.00 | $6,750 | 74,129 Direct | -1.00% | Disposed | 248.9% (price as of 2026-08-19) |
| July 27, 2018 | PLAB | S 10b5-1 | 1,040 | $8.76 | $9,110 | 74,879 Direct | -1.37% | Disposed | 258.4% (price as of 2026-08-19) |
| July 9, 2018 | PLAB | S 10b5-1 | 750 | $9.00 | $6,750 | 74,879 Direct | -0.99% | Disposed | 248.9% (price as of 2026-08-19) |
| July 9, 2018 | PLAB | S 10b5-1 | 1,040 | $8.55 | $8,892 | 75,629 Direct | -1.36% | Disposed | 267.3% (price as of 2026-08-19) |
| May 29, 2018 | PLAB | S 10b5-1 | 750 | $9.08 | $6,810 | 78,629 Direct | -0.94% | Disposed | 245.8% (price as of 2026-08-19) |
| May 29, 2018 | PLAB | S 10b5-1 | 1,040 | $9.14 | $9,506 | 79,379 Direct | -1.29% | Disposed | 243.5% (price as of 2026-08-19) |
| May 22, 2018 | PLAB | S 10b5-1 | 750 | $9.85 | $7,388 | 75,629 Direct | -0.98% | Disposed | 218.8% (price as of 2026-08-19) |
| May 22, 2018 | PLAB | S 10b5-1 | 750 | $9.85 | $7,388 | 76,379 Direct | -0.97% | Disposed | 218.8% (price as of 2026-08-19) |
| March 12, 2018 | PLAB | S 10b5-1 | 750 | $9.00 | $6,750 | 77,129 Direct | -0.96% | Disposed | 248.9% (price as of 2026-08-19) |
| March 12, 2018 | PLAB | S 10b5-1 | 750 | $9.00 | $6,750 | 77,879 Direct | -0.95% | Disposed | 248.9% (price as of 2026-08-19) |
Showing latest 100 of 165 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 |
|---|---|---|---|---|---|---|---|
| Feb. 10, 2020 | PLAB | Non-Qualified Stock Options | Common Stock (3,000) | $6.14 | Jan. 3, 2022 | 3,000 | Disposed |
| Jan. 10, 2020 | PLAB | Non-Qualified Stock Options | Common Stock (3,000) | $6.14 | Jan. 3, 2022 | 3,000 | Disposed |
| Nov. 27, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| Oct. 28, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| Sept. 27, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| Aug. 27, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| July 29, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| June 28, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| May 28, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| April 29, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| March 27, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| Feb. 27, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| Jan. 28, 2019 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Disposed |
| Dec. 27, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,150) | $4.42 | Dec. 21, 2019 | 1,150 | Acquired |
| Nov. 27, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,200) | $4.42 | Dec. 21, 2019 | 1,200 | Disposed |
| Oct. 29, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| Sept. 27, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| Aug. 27, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| July 27, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| July 9, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| May 29, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| May 22, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| March 27, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| March 8, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Disposed |
| Jan. 26, 2018 | PLAB | Non-Qualified Stock Options | Common Stock (1,040) | $0.76 | Nov. 10, 2018 | 1,040 | Acquired |
| Jan. 3, 2012 | PLAB | Stock Options (Right to Buy) | Common Stock (12,000) | $6.14 | Jan. 3, 2022 | 12,000 | 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 (200) | $0.76 | Nov. 10, 2018 | 200 | Disposed |
| Nov. 10, 2008 | PLAB | Stock Options (Right to Buy) | Common Stock (14,400) | $0.76 | Nov. 10, 2018 | 14,400 | Disposed |
| Nov. 10, 2008 | PLAB | Stock Options (Right to Buy) | Common Stock (25,000) | $0.76 | Nov. 10, 2018 | 25,000 | Acquired |
| 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 |
| Aug. 16, 2004 | PLAB | Stock Option (right to buy) | Common Stock (5,000) | $13.19 | Aug. 16, 2014 | 5,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 1, 2004 | PLAB | No securities beneficially owned | 0 | Direct |