Claire R Bertucci
CIK 1202774 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 12, 2004 · Latest: Feb. 12, 2004
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 21 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
21 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 1, 2008 | MKSI | S 10b5-1 | 75,000 | $23.72 | $1,779,000 | 1,965,206 Indirect | -3.68% | Disposed | 1063.5% (price as of 2026-08-20) |
| April 30, 2008 | MKSI | S 10b5-1 | 75,000 | $23.30 | $1,747,500 | 2,144,761 Direct | -3.38% | Disposed | 1084.5% (price as of 2026-08-20) |
| April 4, 2008 | MKSI | S 10b5-1 | 75,000 | $22.65 | $1,698,750 | 2,040,206 Indirect | -3.55% | Disposed | 1118.5% (price as of 2026-08-20) |
| April 3, 2008 | MKSI | S 10b5-1 | 75,000 | $22.78 | $1,708,500 | 2,219,761 Direct | -3.27% | Disposed | 1111.5% (price as of 2026-08-20) |
| March 10, 2008 | MKSI | S 10b5-1 | 46,374 | $19.96 | $925,625 | 2,115,206 Indirect | -2.15% | Disposed | 1282.7% (price as of 2026-08-20) |
| March 7, 2008 | MKSI | S 10b5-1 | 50,000 | $20.02 | $1,001,000 | 2,294,761 Direct | -2.13% | Disposed | 1278.6% (price as of 2026-08-20) |
| Feb. 5, 2008 | MKSI | S 10b5-1 | 25,000 | $18.83 | $470,750 | 2,161,580 Indirect | -1.14% | Disposed | 1365.7% (price as of 2026-08-20) |
| Feb. 4, 2008 | MKSI | S 10b5-1 | 25,000 | $19.24 | $481,000 | 2,344,761 Direct | -1.05% | Disposed | 1334.5% (price as of 2026-08-20) |
| Jan. 8, 2008 | MKSI | S 10b5-1 | 900 | $17.50 | $15,750 | 2,369,761 Direct | -0.04% | Disposed | 1477.1% (price as of 2026-08-20) |
| Jan. 3, 2008 | MKSI | S 10b5-1 | 23,300 | $18.35 | $427,555 | 2,186,580 Indirect | -1.05% | Disposed | 1404.0% (price as of 2026-08-20) |
| Dec. 13, 2007 | MKSI | S 10b5-1 | 25,000 | $18.46 | $461,500 | 2,209,880 Indirect | -1.12% | Disposed | 1395.1% (price as of 2026-08-20) |
| Dec. 12, 2007 | MKSI | S 10b5-1 | 25,000 | $18.67 | $466,750 | 2,370,661 Direct | -1.04% | Disposed | 1378.3% (price as of 2026-08-20) |
| Dec. 6, 2007 | MKSI | S 10b5-1 | 25,000 | $18.37 | $459,250 | 2,234,880 Indirect | -1.11% | Disposed | 1402.4% (price as of 2026-08-20) |
| Dec. 5, 2007 | MKSI | S 10b5-1 | 25,000 | $17.92 | $448,000 | 2,395,661 Direct | -1.03% | Disposed | 1440.1% (price as of 2026-08-20) |
| Nov. 16, 2007 | MKSI | S 10b5-1 | 25,000 | $17.75 | $443,750 | 2,259,880 Indirect | -1.09% | Disposed | 1454.9% (price as of 2026-08-20) |
| Nov. 15, 2007 | MKSI | S | 25,000 | $17.80 | $445,000 | 2,420,661 Direct | -1.02% | Disposed | 1450.5% (price as of 2026-08-20) |
| Nov. 8, 2007 | MKSI | S 10b5-1 | 1,700 | $17.56 | $29,852 | 2,284,880 Indirect | -0.07% | Disposed | 1471.7% (price as of 2026-08-20) |
| Nov. 7, 2007 | MKSI | S 10b5-1 | 25,000 | $17.63 | $440,750 | 2,445,661 Direct | -1.01% | Disposed | 1465.5% (price as of 2026-08-20) |
| Oct. 22, 2007 | MKSI | S 10b5-1 | 25,000 | $19.47 | $486,750 | 2,286,580 Indirect | -1.08% | Disposed | 1317.5% (price as of 2026-08-20) |
| Oct. 19, 2007 | MKSI | S 10b5-1 | 26,123 | $19.47 | $508,615 | 2,470,661 Direct | -1.05% | Disposed | 1317.5% (price as of 2026-08-20) |
| Oct. 11, 2007 | MKSI | S 10b5-1 | 50,000 | $20.19 | $1,009,500 | 2,311,580 Indirect | -2.12% | Disposed | 1267.0% (price as of 2026-08-20) |
| Oct. 10, 2007 | MKSI | S 10b5-1 | 50,000 | $20.26 | $1,013,000 | 2,496,784 Direct | -1.96% | Disposed | 1262.2% (price as of 2026-08-20) |
| Sept. 14, 2007 | MKSI | S 10b5-1 | 50,000 | $20.07 | $1,003,500 | 2,546,784 Direct | -1.93% | Disposed | 1275.1% (price as of 2026-08-20) |
| Sept. 13, 2007 | MKSI | S | 50,000 | $20.65 | $1,032,500 | 2,361,580 Indirect | -2.07% | Disposed | 1236.5% (price as of 2026-08-20) |
| Aug. 16, 2007 | MKSI | S | 50,000 | $21.73 | $1,086,500 | 2,411,580 Indirect | -2.03% | Disposed | 1170.1% (price as of 2026-08-20) |
| Aug. 15, 2007 | MKSI | S | 50,000 | $21.88 | $1,094,000 | 2,596,784 Direct | -1.89% | Disposed | 1161.4% (price as of 2026-08-20) |
| July 19, 2007 | MKSI | S | 100,000 | $27.29 | $2,729,000 | 2,461,580 Indirect | -3.90% | Disposed | 911.3% (price as of 2026-08-20) |
| July 18, 2007 | MKSI | S | 100,000 | $27.05 | $2,705,000 | 2,646,784 Direct | -3.64% | Disposed | 920.3% (price as of 2026-08-20) |
| June 21, 2007 | MKSI | S | 100,000 | $27.72 | $2,772,000 | 2,561,580 Indirect | -3.76% | Disposed | 895.6% (price as of 2026-08-20) |
| June 20, 2007 | MKSI | S | 100,000 | $27.59 | $2,759,000 | 2,746,784 Direct | -3.51% | Disposed | 900.3% (price as of 2026-08-20) |
| May 24, 2007 | MKSI | S | 100,000 | $26.24 | $2,624,000 | 2,661,580 Indirect | -3.62% | Disposed | 951.8% (price as of 2026-08-20) |
| May 23, 2007 | MKSI | S | 100,000 | $26.94 | $2,694,000 | 2,846,784 Direct | -3.39% | Disposed | 924.5% (price as of 2026-08-20) |
| April 26, 2007 | MKSI | S | 100,000 | $27.75 | $2,775,000 | 2,761,580 Indirect | -3.49% | Disposed | 894.6% (price as of 2026-08-20) |
| April 25, 2007 | MKSI | S | 100,000 | $27.25 | $2,725,000 | 2,946,784 Direct | -3.28% | Disposed | 912.8% (price as of 2026-08-20) |
| March 29, 2007 | MKSI | S | 100,000 | $25.26 | $2,526,000 | 2,861,580 Indirect | -3.38% | Disposed | 992.6% (price as of 2026-08-20) |
| March 28, 2007 | MKSI | S | 100,000 | $25.47 | $2,547,000 | 3,146,784 Direct | -3.08% | Disposed | 983.6% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 2,318 | $23.90 | $55,400 | 2,961,580 Indirect | -0.08% | Disposed | 1054.8% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 500 | $23.92 | $11,960 | 2,963,898 Indirect | -0.02% | Disposed | 1053.8% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 400 | $23.91 | $9,564 | 2,964,398 Indirect | -0.01% | Disposed | 1054.3% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 100 | $23.94 | $2,394 | 2,964,798 Indirect | 0.00% | Disposed | 1052.8% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 400 | $23.93 | $9,572 | 2,964,898 Indirect | -0.01% | Disposed | 1053.3% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 1,700 | $23.95 | $40,715 | 2,965,298 Indirect | -0.06% | Disposed | 1052.4% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 500 | $23.96 | $11,980 | 2,966,998 Indirect | -0.02% | Disposed | 1051.9% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 100 | $24.00 | $2,400 | 2,967,498 Indirect | 0.00% | Disposed | 1050.0% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 500 | $23.98 | $11,990 | 2,967,598 Indirect | -0.02% | Disposed | 1050.9% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 965 | $23.98 | $23,141 | 2,968,098 Indirect | -0.03% | Disposed | 1050.9% (price as of 2026-08-20) |
| March 1, 2007 | MKSI | S | 75,000 | $23.72 | $1,779,000 | 2,961,580 Indirect | -2.47% | Disposed | 1063.5% (price as of 2026-08-20) |
| Feb. 28, 2007 | MKSI | S | 75,000 | $24.01 | $1,800,750 | 3,246,784 Direct | -2.26% | Disposed | 1049.5% (price as of 2026-08-20) |
| Feb. 1, 2007 | MKSI | S | 50,000 | $21.98 | $1,099,000 | 3,036,580 Indirect | -1.62% | Disposed | 1155.6% (price as of 2026-08-20) |
| Jan. 31, 2007 | MKSI | S | 50,000 | $21.73 | $1,086,500 | 3,321,784 Direct | -1.48% | Disposed | 1170.1% (price as of 2026-08-20) |
| Jan. 4, 2007 | MKSI | S | 25,000 | $22.81 | $570,250 | 3,086,580 Indirect | -0.80% | Disposed | 1110.0% (price as of 2026-08-20) |
| Jan. 4, 2007 | MKSI | S | 25,000 | $22.82 | $570,500 | 3,111,580 Indirect | -0.80% | Disposed | 1109.4% (price as of 2026-08-20) |
| Jan. 4, 2007 | MKSI | S | 25,000 | $22.83 | $570,750 | 3,136,580 Indirect | -0.79% | Disposed | 1108.9% (price as of 2026-08-20) |
| Jan. 3, 2007 | MKSI | S | 25,000 | $22.65 | $566,250 | 3,371,784 Direct | -0.74% | Disposed | 1118.5% (price as of 2026-08-20) |
| Jan. 3, 2007 | MKSI | S | 25,000 | $22.66 | $566,500 | 3,396,784 Direct | -0.73% | Disposed | 1118.0% (price as of 2026-08-20) |
| Jan. 3, 2007 | MKSI | S | 25,000 | $22.69 | $567,250 | 3,421,784 Direct | -0.73% | Disposed | 1116.4% (price as of 2026-08-20) |
| Dec. 7, 2006 | MKSI | S | 100,000 | $20.66 | $2,066,000 | 3,311,580 Indirect | -2.93% | Disposed | 1235.9% (price as of 2026-08-20) |
| Dec. 6, 2006 | MKSI | S | 100,000 | $20.74 | $2,074,000 | 3,446,784 Direct | -2.82% | Disposed | 1230.7% (price as of 2026-08-20) |
| Nov. 9, 2006 | MKSI | S | 100,000 | $21.00 | $2,100,000 | 3,411,580 Indirect | -2.85% | Disposed | 1214.2% (price as of 2026-08-20) |
| Nov. 8, 2006 | MKSI | S | 100,000 | $21.27 | $2,127,000 | 3,546,784 Direct | -2.74% | Disposed | 1197.6% (price as of 2026-08-20) |
| Oct. 12, 2006 | MKSI | S 10b5-1 | 100,000 | $21.10 | $2,110,000 | 3,511,580 Indirect | -2.77% | Disposed | 1208.0% (price as of 2026-08-20) |
| Oct. 11, 2006 | MKSI | S 10b5-1 | 100,000 | $20.88 | $2,088,000 | 3,646,784 Direct | -2.67% | Disposed | 1221.8% (price as of 2026-08-20) |
| Sept. 14, 2006 | MKSI | S | 100,000 | $20.05 | $2,005,000 | 3,611,580 Indirect | -2.69% | Disposed | 1276.5% (price as of 2026-08-20) |
| Sept. 13, 2006 | MKSI | S | 100,000 | $20.29 | $2,029,000 | 3,746,784 Direct | -2.60% | Disposed | 1260.2% (price as of 2026-08-20) |
| Aug. 17, 2006 | MKSI | S | 100,000 | $20.68 | $2,068,000 | 3,711,580 Indirect | -2.62% | Disposed | 1234.6% (price as of 2026-08-20) |
| Aug. 16, 2006 | MKSI | S | 100,000 | $20.68 | $2,068,000 | 3,846,784 Direct | -2.53% | Disposed | 1234.6% (price as of 2026-08-20) |
| July 20, 2006 | MKSI | S | 100,000 | $18.82 | $1,882,000 | 3,811,580 Indirect | -2.56% | Disposed | 1366.5% (price as of 2026-08-20) |
| July 19, 2006 | MKSI | S | 100,000 | $18.98 | $1,898,000 | 3,946,784 Direct | -2.47% | Disposed | 1354.1% (price as of 2026-08-20) |
| July 18, 2006 | MKSI | S | 471 | $18.32 | $8,629 | 0 Indirect | -100.00% | Disposed | 1406.5% (price as of 2026-08-20) |
| June 22, 2006 | MKSI | S | 100,000 | $19.17 | $1,917,000 | 3,911,580 Indirect | -2.49% | Disposed | 1339.7% (price as of 2026-08-20) |
| June 21, 2006 | MKSI | S | 100,000 | $18.95 | $1,895,000 | 4,046,784 Direct | -2.41% | Disposed | 1356.4% (price as of 2026-08-20) |
| May 25, 2006 | MKSI | S 10b5-1 | 100,000 | $20.18 | $2,018,000 | 4,011,580 Indirect | -2.43% | Disposed | 1267.6% (price as of 2026-08-20) |
| May 24, 2006 | MKSI | S 10b5-1 | 100,000 | $20.35 | $2,035,000 | 4,146,784 Direct | -2.35% | Disposed | 1256.2% (price as of 2026-08-20) |
| April 27, 2006 | MKSI | S | 100,000 | $24.28 | $2,428,000 | 4,111,580 Indirect | -2.37% | Disposed | 1036.7% (price as of 2026-08-20) |
| April 26, 2006 | MKSI | S | 100,000 | $24.03 | $2,403,000 | 4,246,784 Direct | -2.30% | Disposed | 1048.5% (price as of 2026-08-20) |
| April 10, 2006 | MKSI | S | 942 | $22.32 | $21,025 | 471 Indirect | -66.67% | Disposed | 1136.5% (price as of 2026-08-20) |
| March 30, 2006 | MKSI | S | 100,000 | $23.17 | $2,317,000 | 4,211,580 Indirect | -2.32% | Disposed | 1091.2% (price as of 2026-08-20) |
| March 29, 2006 | MKSI | S | 100,000 | $23.25 | $2,325,000 | 4,346,784 Direct | -2.25% | Disposed | 1087.1% (price as of 2026-08-20) |
| March 2, 2006 | MKSI | S 10b5-1 | 100,000 | $22.56 | $2,256,000 | 4,311,580 Indirect | -2.27% | Disposed | 1123.4% (price as of 2026-08-20) |
Showing latest 100 of 178 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 |
|---|---|---|---|---|---|---|---|
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (2,318) | — | Aug. 8, 1988 | 2,318 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (500) | — | Aug. 8, 1988 | 500 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (400) | — | Aug. 8, 1988 | 400 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (100) | — | Aug. 8, 1988 | 100 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (400) | — | Aug. 8, 1988 | 400 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (1,700) | — | Aug. 8, 1988 | 1,700 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (500) | — | Aug. 8, 1988 | 500 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (100) | — | Aug. 8, 1988 | 100 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (500) | — | Aug. 8, 1988 | 500 | Disposed |
| March 1, 2007 | MKSI | Stock Option (right to buy) | Common (965) | — | Aug. 8, 1988 | 965 | Disposed |
| Sept. 15, 2005 | MKSI | Stock Option (right to buy) | Common (13,804) | — | Aug. 8, 1988 | 13,804 | Disposed |
| Oct. 26, 2004 | MKSI | Stock Option (right to buy) | Common (4,601) | $0.00 | Aug. 8, 1988 | 4,601 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).