Louis P Valente
CIK 1202744 · View on SEC EDGAR ↗
First SEC filing: Feb. 4, 2004 · Latest: Feb. 4, 2004
On this page
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 6, 2012 | MKSI | S | 2,000 | $31.74 | $63,480 | 12,000 Direct | -14.29% | Disposed | 792.1% (price as of 2026-08-21) |
| Nov. 4, 2011 | MKSI | S | 12,000 | $27.27 | $327,240 | 14,000 Direct | -46.15% | Disposed | 938.3% (price as of 2026-08-21) |
| July 28, 2011 | MKSI | S | 12,000 | $25.13 | $301,560 | 14,000 Direct | -46.15% | Disposed | 1026.7% (price as of 2026-08-21) |
| May 6, 2011 | MKSI | S | 12,000 | $26.72 | $320,640 | 14,000 Direct | -46.15% | Disposed | 959.7% (price as of 2026-08-21) |
| May 6, 2011 | MKSI | S | 12,000 | $26.85 | $322,200 | 14,000 Direct | -46.15% | Disposed | 954.6% (price as of 2026-08-21) |
| Dec. 17, 2010 | MKSI | S | 2,000 | $24.03 | $48,060 | 8,000 Direct | -20.00% | Disposed | 1078.3% (price as of 2026-08-21) |
| Aug. 3, 2009 | MKSI | S | 4,000 | $19.60 | $78,400 | 4,000 Direct | -50.00% | Disposed | 1344.6% (price as of 2026-08-21) |
| March 18, 2009 | MKSI | S 10b5-1 | 10,500 | $14.35 | $150,675 | 4,000 Direct | -72.41% | Disposed | 1873.2% (price as of 2026-08-21) |
| Feb. 6, 2009 | MKSI | S | 6,000 | $15.15 | $90,900 | 4,000 Direct | -60.00% | Disposed | 1769.0% (price as of 2026-08-21) |
| May 8, 2008 | MKSI | S | 4,000 | $24.12 | $96,480 | 4,000 Direct | -50.00% | Disposed | 1073.9% (price as of 2026-08-21) |
| June 14, 2007 | MKSI | S | 1,410 | $27.85 | $39,268 | 0 Direct | -100.00% | Disposed | 916.7% (price as of 2026-08-21) |
| June 14, 2007 | MKSI | S | 400 | $27.86 | $11,144 | 1,410 Direct | -22.10% | Disposed | 916.3% (price as of 2026-08-21) |
| Sept. 5, 2003 | MKSI | S | 3,682 | $26.70 | $98,309 | 0 Direct | -100.00% | Disposed | 960.5% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| Nov. 4, 2011 | MKSI | Director Stock Option (Right to Buy) | Common Stock (12,000) | $24.35 | May 8, 2016 | 12,000 | Disposed |
| July 28, 2011 | MKSI | Director Stock Option (Right to Buy) | Common Stock (12,000) | $20.07 | May 14, 2014 | 12,000 | Disposed |
| May 6, 2011 | MKSI | Director Stock Option (Right to Buy) | Common Stock (12,000) | $15.84 | May 8, 2015 | 12,000 | Disposed |
| May 6, 2011 | MKSI | Stock Option (Right to Buy) | Common Stock (12,000) | $17.06 | May 14, 2013 | 12,000 | Disposed |
| May 17, 2010 | MKSI | Director Stock Option (Right to Buy) | Common Stock (6,000) | $44.88 | May 17, 2010 | 6,000 | Disposed |
| March 18, 2009 | MKSI | Director Stock Option (Right to Buy) [F1] | Common Stock (10,500) | $14.00 | March 26, 2009 | 10,500 | Disposed |
| Feb. 6, 2009 | MKSI | Director Stock Option (Right to Buy) | Common Stock (6,000) | $14.40 | Feb. 17, 2009 | 6,000 | Disposed |
| May 4, 2008 | MKSI | Restricted Stock Unit | Common (4,000) | — | — | 4,000 | Disposed |
| May 7, 2007 | MKSI | Restricted Stock Unit | Common (4,000) | — | — | 4,000 | Acquired |
| May 8, 2006 | MKSI | Director Stock Option (Right to Buy) 2006 | Common (12,000) | $24.35 | May 8, 2016 | 12,000 | Acquired |
| June 13, 2005 | MKSI | Director Stock option (right to buy) | Common (905) | $0.00 | Aug. 8, 1988 | 905 | Disposed |
| June 13, 2005 | MKSI | Director Stock option (right to buy) | Common (905) | $0.00 | Aug. 8, 1988 | 905 | Disposed |
| May 9, 2005 | MKSI | Director Stock Option 2005 (right to buy) | Common (12,000) | $15.84 | May 8, 2015 | 12,000 | Acquired |
| May 13, 2004 | MKSI | Director Stock Option (Right to Buy) | Common (12,000) | $20.07 | May 14, 2014 | 12,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).