Robert R Anderson
CIK 1202728 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 4, 2004 · Latest: Feb. 4, 2004
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 46 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
46 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 13, 2017 | MKSI | S | 2,500 | $67.01 | $167,525 | 11,296 Indirect | -18.12% | Disposed | 311.9% (price as of 2026-08-20) |
| Nov. 22, 2016 | MKSI | S | 2,500 | $56.76 | $141,900 | 20,128 Direct | -11.05% | Disposed | 386.2% (price as of 2026-08-20) |
| May 5, 2016 | MKSI | P | 3,500 | $35.94 | $125,790 | 22,628 Direct | +18.30% | Acquired | 667.9% (price as of 2026-08-20) |
| Aug. 17, 2015 | AEHR | P | 1,500 | $2.22 | $3,330 | 429,009 Indirect | +0.35% | Acquired | 4671.6% (price as of 2026-08-20) |
| Aug. 17, 2015 | AEHR | P | 1,500 | $2.11 | $3,165 | 427,509 Indirect | +0.35% | Acquired | 4920.4% (price as of 2026-08-20) |
| Aug. 13, 2015 | AEHR | P | 1,000 | $2.18 | $2,180 | 426,009 Indirect | +0.24% | Acquired | 4759.2% (price as of 2026-08-20) |
| Aug. 13, 2015 | AEHR | P | 1,500 | $2.18 | $3,270 | 425,009 Indirect | +0.35% | Acquired | 4759.2% (price as of 2026-08-20) |
| Aug. 13, 2015 | AEHR | P | 1,000 | $2.20 | $2,200 | 423,509 Indirect | +0.24% | Acquired | 4715.0% (price as of 2026-08-20) |
| Aug. 12, 2015 | AEHR | P | 1,000 | $2.23 | $2,230 | 422,509 Indirect | +0.24% | Acquired | 4650.2% (price as of 2026-08-20) |
| Aug. 12, 2015 | AEHR | P | 1,500 | $2.22 | $3,330 | 421,509 Indirect | +0.36% | Acquired | 4671.6% (price as of 2026-08-20) |
| Aug. 12, 2015 | AEHR | P | 2,000 | $2.13 | $4,260 | 420,009 Indirect | +0.48% | Acquired | 4873.2% (price as of 2026-08-20) |
| Aug. 11, 2015 | AEHR | P | 200 | $2.25 | $450 | 418,009 Indirect | +0.05% | Acquired | 4608.0% (price as of 2026-08-20) |
| Aug. 11, 2015 | AEHR | P | 2,000 | $2.25 | $4,500 | 417,809 Indirect | +0.48% | Acquired | 4608.0% (price as of 2026-08-20) |
| Aug. 11, 2015 | AEHR | P | 1,800 | $2.25 | $4,050 | 415,809 Indirect | +0.43% | Acquired | 4608.0% (price as of 2026-08-20) |
| Aug. 10, 2015 | AEHR | P | 2,017 | $2.25 | $4,538 | 414,009 Indirect | +0.49% | Acquired | 4608.0% (price as of 2026-08-20) |
| Aug. 10, 2015 | AEHR | P | 483 | $2.22 | $1,072 | 411,992 Indirect | +0.12% | Acquired | 4671.6% (price as of 2026-08-20) |
| Aug. 7, 2015 | AEHR | P | 500 | $2.23 | $1,115 | 411,509 Indirect | +0.12% | Acquired | 4650.2% (price as of 2026-08-20) |
| Aug. 7, 2015 | AEHR | P | 100 | $2.24 | $224 | 411,009 Indirect | +0.02% | Acquired | 4629.0% (price as of 2026-08-20) |
| Aug. 7, 2015 | AEHR | P | 400 | $2.24 | $896 | 410,909 Indirect | +0.10% | Acquired | 4629.0% (price as of 2026-08-20) |
| Aug. 7, 2015 | AEHR | P | 100 | $2.24 | $224 | 410,509 Indirect | +0.02% | Acquired | 4629.0% (price as of 2026-08-20) |
| Aug. 7, 2015 | AEHR | P | 1,400 | $2.20 | $3,080 | 410,409 Indirect | +0.34% | Acquired | 4715.0% (price as of 2026-08-20) |
| Aug. 6, 2015 | AEHR | P | 200 | $2.06 | $412 | 409,009 Indirect | +0.05% | Acquired | 5042.2% (price as of 2026-08-20) |
| Aug. 6, 2015 | AEHR | P | 800 | $2.14 | $1,712 | 408,809 Indirect | +0.20% | Acquired | 4850.0% (price as of 2026-08-20) |
| Aug. 6, 2015 | AEHR | P | 2,000 | $2.08 | $4,160 | 408,009 Indirect | +0.49% | Acquired | 4992.8% (price as of 2026-08-20) |
| Aug. 5, 2015 | AEHR | P | 2,000 | $2.19 | $4,380 | 406,009 Indirect | +0.50% | Acquired | 4737.0% (price as of 2026-08-20) |
| Aug. 4, 2015 | AEHR | P | 1,000 | $2.18 | $2,180 | 404,009 Indirect | +0.25% | Acquired | 4759.2% (price as of 2026-08-20) |
| Aug. 4, 2015 | AEHR | P | 2,000 | $2.13 | $4,260 | 403,009 Indirect | +0.50% | Acquired | 4873.2% (price as of 2026-08-20) |
| July 24, 2015 | AEHR | P | 400 | $2.03 | $812 | 401,009 Indirect | +0.10% | Acquired | 5118.2% (price as of 2026-08-20) |
| July 24, 2015 | AEHR | P | 4,500 | $2.05 | $9,225 | 400,609 Indirect | +1.14% | Acquired | 5067.3% (price as of 2026-08-20) |
| July 23, 2015 | AEHR | P | 2,500 | $2.01 | $5,025 | 396,109 Indirect | +0.64% | Acquired | 5170.1% (price as of 2026-08-20) |
| July 22, 2015 | AEHR | P | 200 | $2.05 | $410 | 393,609 Indirect | +0.05% | Acquired | 5067.3% (price as of 2026-08-20) |
| July 22, 2015 | AEHR | P | 2,300 | $2.00 | $4,600 | 393,409 Indirect | +0.59% | Acquired | 5196.5% (price as of 2026-08-20) |
| July 21, 2015 | AEHR | P | 2,000 | $2.00 | $4,000 | 391,109 Indirect | +0.51% | Acquired | 5196.5% (price as of 2026-08-20) |
| July 21, 2015 | AEHR | P | 1,500 | $2.04 | $3,060 | 389,109 Indirect | +0.39% | Acquired | 5092.6% (price as of 2026-08-20) |
| July 20, 2015 | AEHR | P | 300 | $2.05 | $615 | 387,609 Indirect | +0.08% | Acquired | 5067.3% (price as of 2026-08-20) |
| July 20, 2015 | AEHR | P | 2,000 | $2.06 | $4,120 | 387,309 Indirect | +0.52% | Acquired | 5042.2% (price as of 2026-08-20) |
| July 20, 2015 | AEHR | P | 200 | $2.06 | $412 | 385,309 Indirect | +0.05% | Acquired | 5042.2% (price as of 2026-08-20) |
| May 28, 2015 | MKSI | S 10b5-1 | 500 | $37.50 | $18,750 | 18,296 Direct | -2.66% | Disposed | 636.0% (price as of 2026-08-20) |
| May 21, 2015 | MKSI | S 10b5-1 | 500 | $37.32 | $18,660 | 18,796 Direct | -2.59% | Disposed | 639.5% (price as of 2026-08-20) |
| May 14, 2015 | MKSI | S 10b5-1 | 500 | $36.33 | $18,165 | 19,296 Direct | -2.53% | Disposed | 659.7% (price as of 2026-08-20) |
| May 7, 2015 | MKSI | S 10b5-1 | 500 | $34.78 | $17,390 | 19,796 Direct | -2.46% | Disposed | 693.5% (price as of 2026-08-20) |
| April 30, 2015 | MKSI | S 10b5-1 | 500 | $35.73 | $17,865 | 16,337 Direct | -2.97% | Disposed | 672.4% (price as of 2026-08-20) |
| April 23, 2015 | MKSI | S 10b5-1 | 500 | $36.25 | $18,125 | 16,837 Direct | -2.88% | Disposed | 661.4% (price as of 2026-08-20) |
| April 16, 2015 | MKSI | S 10b5-1 | 500 | $33.90 | $16,950 | 17,337 Direct | -2.80% | Disposed | 714.1% (price as of 2026-08-20) |
| April 9, 2015 | MKSI | S 10b5-1 | 500 | $33.63 | $16,815 | 17,837 Direct | -2.73% | Disposed | 720.7% (price as of 2026-08-20) |
| April 2, 2015 | MKSI | S 10b5-1 | 500 | $33.60 | $16,800 | 18,337 Direct | -2.65% | Disposed | 721.4% (price as of 2026-08-20) |
| March 26, 2015 | MKSI | S 10b5-1 | 500 | $33.74 | $16,870 | 18,837 Direct | -2.59% | Disposed | 718.0% (price as of 2026-08-20) |
| March 19, 2015 | MKSI | S | 500 | $35.85 | $17,925 | 19,337 Direct | -2.52% | Disposed | 669.8% (price as of 2026-08-20) |
| March 12, 2015 | MKSI | S 10b5-1 | 500 | $34.60 | $17,300 | 19,837 Direct | -2.46% | Disposed | 697.7% (price as of 2026-08-20) |
| Nov. 24, 2014 | AEHR | P | 20,567 | $2.43 | $49,978 | 70,567 Indirect | +41.13% | Acquired | 4259.3% (price as of 2026-08-20) |
| Nov. 24, 2014 | AEHR | P | 185,109 | $2.43 | $449,815 | 385,109 Indirect | +92.55% | Acquired | 4259.3% (price as of 2026-08-20) |
| Aug. 8, 2014 | MKSI | S | 9,069 | $32.39 | $293,745 | 20,337 Direct | -30.84% | Disposed | 752.1% (price as of 2026-08-20) |
| June 13, 2014 | MKSI | S | 3,418 | $29.61 | $101,207 | 14,406 Direct | -19.18% | Disposed | 832.1% (price as of 2026-08-20) |
| Feb. 7, 2014 | MKSI | S | 4,000 | $28.95 | $115,800 | 13,418 Direct | -22.96% | Disposed | 853.3% (price as of 2026-08-20) |
Showing latest 100 of 200 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 |
|---|---|---|---|---|---|---|---|
| Oct. 24, 2017 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $2.17 | Oct. 20, 2022 | 10,000 | Disposed |
| Oct. 24, 2017 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (17,436) | $2.10 | April 21, 2022 | 17,436 | Disposed |
| Aug. 3, 2017 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (17,460) | $2.06 | Oct. 21, 2021 | 17,460 | Disposed |
| Aug. 3, 2017 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (7,500) | $2.06 | Oct. 21, 2021 | 7,500 | Disposed |
| Oct. 18, 2016 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $2.81 | Oct. 18, 2023 | 10,000 | Acquired |
| July 19, 2016 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (2,500) | $2.06 | Oct. 21, 2021 | 2,500 | Disposed |
| July 19, 2016 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (15,241) | $1.77 | July 17, 2020 | 15,241 | Disposed |
| Oct. 20, 2015 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $2.17 | Oct. 20, 2022 | 10,000 | Acquired |
| April 21, 2015 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (17,436) | $2.10 | April 21, 2022 | 17,436 | Acquired |
| Oct. 21, 2014 | AEHR | Non-Qualifed Stock Option (right to buy) | Common Stock (17,460) | $2.06 | Oct. 21, 2021 | 17,460 | Acquired |
| Oct. 21, 2014 | AEHR | Non-Qualifed Stock Option (right to buy) | Common Stock (10,000) | $2.06 | Oct. 21, 2021 | 10,000 | Acquired |
| Aug. 8, 2014 | MKSI | Director Stock Option (Right to Buy) | Common Stock (3,000) | $15.84 | May 8, 2015 | 3,000 | Disposed |
| Aug. 8, 2014 | MKSI | Director Stock Option (Right to Buy) | Common Stock (9,069) | $24.35 | May 8, 2016 | 9,069 | Disposed |
| Aug. 8, 2014 | MKSI | Director Stock Option (Right to Buy) | Common Stock (2,931) | $24.35 | May 8, 2016 | 2,931 | Disposed |
| July 10, 2014 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $1.42 | Oct. 27, 2014 | 5,000 | Disposed |
| July 10, 2014 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $1.32 | Oct. 27, 2015 | 10,000 | Disposed |
| July 10, 2014 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $0.97 | Jan. 22, 2020 | 10,000 | Disposed |
| July 10, 2014 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (6,424) | $0.80 | Nov. 28, 2019 | 6,424 | Disposed |
| April 22, 2014 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (12,653) | $2.63 | April 22, 2021 | 12,653 | Acquired |
| Oct. 22, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,723) | $2.68 | Oct. 22, 2020 | 10,723 | Acquired |
| Oct. 22, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $2.68 | Oct. 22, 2020 | 10,000 | Acquired |
| July 24, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (3,334) | $0.89 | Oct. 25, 2018 | 3,334 | Disposed |
| July 24, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (30,000) | $0.80 | Nov. 28, 2019 | 30,000 | Disposed |
| July 24, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (6,252) | $0.75 | Jan. 31, 2019 | 6,252 | Disposed |
| July 17, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (15,241) | $1.77 | July 17, 2020 | 15,241 | Acquired |
| Feb. 5, 2013 | MKSI | Director Stock Option (Right to Buy) | Common Stock (5,000) | $15.84 | May 8, 2015 | 5,000 | Disposed |
| Jan. 22, 2013 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $0.97 | Jan. 22, 2020 | 10,000 | Acquired |
| Nov. 28, 2012 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (36,424) | $0.80 | Nov. 28, 2019 | 36,424 | Acquired |
| July 17, 2012 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (6,666) | $0.89 | Oct. 25, 2018 | 6,666 | Disposed |
| July 17, 2012 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $0.85 | June 30, 2014 | 5,000 | Disposed |
| July 17, 2012 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (31,256) | $0.75 | Jan. 31, 2019 | 31,256 | Disposed |
| Feb. 6, 2012 | MKSI | Director Stock Option (Right to Buy) | Common Stock (4,000) | $15.84 | May 8, 2015 | 4,000 | Disposed |
| Feb. 6, 2012 | MKSI | Director Stock Option (Right to Buy) | Common Stock (5,000) | $20.07 | May 14, 2014 | 5,000 | Disposed |
| Jan. 31, 2012 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (37,508) | $0.75 | Jan. 31, 2019 | 37,508 | Acquired |
| Oct. 28, 2011 | MKSI | Director Stock Option (Right to Buy) | Common Stock (7,000) | $20.07 | May 14, 2014 | 7,000 | Disposed |
| Oct. 25, 2011 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $0.89 | Oct. 25, 2018 | 10,000 | Acquired |
| Feb. 7, 2011 | MKSI | Director Stock Option (Right to Buy) | Common Stock (12,000) | $17.06 | May 14, 2013 | 12,000 | Disposed |
| Oct. 27, 2010 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $1.32 | Oct. 27, 2015 | 10,000 | Acquired |
| Oct. 27, 2009 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $1.42 | Oct. 27, 2014 | 5,000 | Acquired |
| June 30, 2009 | AEHR | Non-qualified Stock Option (right to buy) | Common Stock (5,000) | $0.85 | June 30, 2014 | 5,000 | Acquired |
| Oct. 28, 2008 | AEHR | Incentive Stock Option (right to buy) | Common Stock (5,000) | $2.30 | Oct. 28, 2013 | 5,000 | Acquired |
| May 4, 2008 | MKSI | Restricted Stock Unit | Common (4,000) | — | — | 4,000 | Disposed |
| April 9, 2008 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (500) | $3.85 | Oct. 17, 2008 | 500 | Disposed |
| April 9, 2008 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (1,413) | $3.85 | Oct. 17, 2008 | 1,413 | Disposed |
| April 9, 2008 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (300) | $3.85 | Oct. 17, 2008 | 300 | Disposed |
| April 9, 2008 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (1,387) | $3.85 | Oct. 17, 2008 | 1,387 | Disposed |
| April 9, 2008 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (1,400) | $3.85 | Oct. 17, 2008 | 1,400 | Disposed |
| Nov. 6, 2007 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $6.00 | Nov. 7, 2007 | 15,000 | Disposed |
| Oct. 30, 2007 | AEHR | Incentive Stock Option (right to buy) | Common Stock (5,000) | $7.28 | Oct. 30, 2012 | 5,000 | Acquired |
| May 14, 2007 | MKSI | Director Stock option (right to buy) | Common (11,250) | — | Aug. 8, 1988 | 11,250 | Disposed |
| May 7, 2007 | MKSI | Restricted Stock Unit | Common (4,000) | — | — | 4,000 | Acquired |
| Oct. 27, 2006 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $6.07 | Oct. 27, 2011 | 5,000 | Acquired |
| July 27, 2006 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (2,517) | $2.84 | Oct. 19, 2011 | 2,517 | Disposed |
| July 26, 2006 | AEHR | Non-Qualified Stock option (right to buy) | Common Stock (7,476) | $2.84 | Oct. 19, 2011 | 7,476 | Disposed |
| May 8, 2006 | MKSI | Director Stock Option (Right to Buy) 2006 | Common (12,000) | $24.35 | May 8, 2016 | 12,000 | Acquired |
| Oct. 27, 2005 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (14,754) | $3.66 | Oct. 27, 2012 | 14,754 | Acquired |
| Oct. 27, 2005 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $3.66 | Oct. 27, 2012 | 5,000 | Acquired |
| May 9, 2005 | MKSI | Director Stock Option 2005 (right to buy) | Common (12,000) | $15.84 | May 8, 2015 | 12,000 | Acquired |
| Oct. 19, 2004 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (12,676) | $2.84 | Oct. 19, 2011 | 12,676 | Acquired |
| Oct. 19, 2004 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $2.84 | Oct. 19, 2011 | 5,000 | Acquired |
| May 13, 2004 | MKSI | Director Stock Option (Right to Buy) | Common (12,000) | $20.07 | May 14, 2014 | 12,000 | Acquired |
| Oct. 15, 2003 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (9,499) | $3.79 | Oct. 15, 2010 | 9,499 | Acquired |
| Oct. 15, 2003 | AEHR | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $3.79 | Oct. 15, 2010 | 5,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).