SEC CIK 1202758
WEIGNER RONALD
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| MKSIview stock → | 12,024.34 | 2009-03-10 |
Position History — MKSI
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — MKSI
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2009-03-16 | Grant / award (derivative) | 7,000 | $0.00 | 15,804 |
| 2009-03-10 | Option exercise (derivative) | 2,822 | $0.00 | 8,804 |
| 2009-03-10 | Option exercise | 2,822 | $0.00 | 12,024.34 |
| 2009-03-10 | Tax withholding | 897 | $12.19 | 11,127.34 |
| 2009-03-02 | Option exercise (derivative) | 3,156 | $0.00 | 13,156 |
| 2009-03-02 | Open-market sale | 1,003 | $11.89 | 9,202.34 |
| 2009-03-02 | Option exercise | 3,156 | $0.00 | 10,205.34 |
| 2009-02-13 | Tax withholding | 3,476 | $15.89 | 7,049.65 |
| 2008-06-05 | Open-market sale | 695 | $24.15 | 10,002.69 |
| 2008-05-09 | Open-market sale | 1,991 | $24.09 | 10,002.69 |
| 2008-03-10 | Grant / award (derivative) | 10,000 | $0.00 | 16,846 |
| 2008-03-01 | Option exercise (derivative) | 3,154 | $0.00 | 6,846 |
| 2008-03-01 | Tax withholding | 1,163 | $0.00 | 11,993.69 |
| 2008-03-01 | Option exercise | 3,154 | $0.00 | 13,156.69 |
| 2007-12-04 | Open-market sale | 687 | $17.80 | 10,002.69 |
| 2007-06-14 | Option exercise (derivative) | 60,000 | $0.00 | 198,453 |
| 2007-06-14 | Option exercise | 60,000 | $6.67 | 70,001.69 |
| 2007-06-14 | Open-market sale | 10,000 | $27.71 | 10,001.69 |
| 2007-06-14 | Open-market sale | 50,000 | $27.76 | 20,001.69 |
| 2007-06-08 | Open-market sale | 602 | $26.60 | 10,001.69 |
| 2007-03-01 | Grant / award (derivative) | 10,000 | $0.00 | 10,000 |
| 2006-12-13 | Open-market sale | 626 | $20.93 | 10,001.3 |
| 2006-12-04 | J | 626.3 | $17.66 | 10,627.3 |
| 2006-11-01 | Option exercise (derivative) | 13,584 | $0.00 | 258,453 |
| 2006-11-01 | Option exercise | 13,584 | $4.43 | 23,585 |
| 2006-11-01 | Open-market sale | 13,584 | $20.51 | 10,001 |
| 2006-10-25 | Option exercise (derivative) | 2,770 | $0.00 | 272,037 |
| 2006-10-25 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-10-25 | Open-market sale | 2,770 | $21.01 | 10,001 |
| 2006-10-18 | Option exercise (derivative) | 2,770 | $0.00 | 274,807 |
| 2006-10-18 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-10-18 | Open-market sale | 2,770 | $21.89 | 10,001 |
| 2006-10-11 | Option exercise (derivative) | 2,770 | $0.00 | 277,577 |
| 2006-10-11 | Open-market sale | 2,770 | $20.52 | 10,001 |
| 2006-10-11 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-10-04 | Option exercise (derivative) | 2,770 | $0.00 | 280,347 |
| 2006-10-04 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-10-04 | Open-market sale | 2,770 | $19.64 | 10,001 |
| 2006-10-02 | Option exercise (derivative) | 9,000 | $0.00 | 283,117 |
| 2006-10-02 | Option exercise (derivative) | 2,080 | $0.00 | 292,117 |
| 2006-10-02 | Option exercise | 9,000 | $4.43 | 19,001 |
| 2006-10-02 | Open-market sale | 2,080 | $20.23 | 10,001 |
| 2006-10-02 | Option exercise | 2,080 | $4.43 | 12,081 |
| 2006-09-20 | Option exercise (derivative) | 2,770 | $0.00 | 294,197 |
| 2006-09-20 | Open-market sale | 2,770 | $20.41 | 10,001 |
| 2006-09-20 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-09-14 | Option exercise (derivative) | 3,000 | $0.00 | 296,967 |
| 2006-09-14 | Open-market sale | 3,000 | $20.01 | 10,001 |
| 2006-09-14 | Option exercise | 3,000 | $4.43 | 13,001 |
| 2006-09-13 | Option exercise (derivative) | 2,770 | $0.00 | 299,967 |
| 2006-09-13 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-09-13 | Open-market sale | 2,770 | $20.34 | 10,001 |
| 2006-09-06 | Option exercise (derivative) | 2,770 | $0.00 | 302,737 |
| 2006-09-06 | Option exercise | 2,770 | $4.43 | 12,771 |
| 2006-09-06 | Open-market sale | 2,770 | $20.41 | 10,001 |
| 2006-08-23 | Option exercise (derivative) | 526 | $0.00 | 305,507 |
| 2006-08-23 | Option exercise | 526 | $4.43 | 10,527 |
| 2006-08-23 | Open-market sale | 526 | $20.64 | 10,001 |
| 2006-08-16 | Option exercise (derivative) | 660 | $0.00 | 306,033 |
| 2006-08-16 | Open-market sale | 660 | $20.22 | 10,001 |
| 2006-08-16 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-08-09 | Option exercise (derivative) | 660 | $0.00 | 306,693 |
| 2006-08-09 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-08-09 | Open-market sale | 660 | $19.63 | 10,001 |
| 2006-08-02 | Option exercise (derivative) | 660 | $0.00 | 307,353 |
| 2006-08-02 | Open-market sale | 660 | $20.08 | 10,001 |
| 2006-08-02 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-07-26 | Option exercise (derivative) | 660 | $0.00 | 308,013 |
| 2006-07-26 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-07-26 | Open-market sale | 660 | $18.61 | 10,001 |
| 2006-07-19 | Option exercise (derivative) | 660 | $0.00 | 308,673 |
| 2006-07-19 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-07-19 | Open-market sale | 660 | $18.44 | 10,001 |
| 2006-07-12 | Option exercise (derivative) | 660 | $0.00 | 309,333 |
| 2006-07-12 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-07-12 | Open-market sale | 660 | $19.30 | 10,001 |
| 2006-07-05 | Option exercise (derivative) | 660 | $0.00 | 309,993 |
| 2006-07-05 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-07-05 | Open-market sale | 660 | $20.19 | 10,001 |
| 2006-06-28 | Option exercise (derivative) | 660 | $0.00 | 310,653 |
| 2006-06-28 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-06-28 | Open-market sale | 660 | $19.70 | 10,001 |
| 2006-06-21 | Option exercise (derivative) | 660 | $0.00 | 311,313 |
| 2006-06-21 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-06-21 | Open-market sale | 660 | $19.01 | 10,001 |
| 2006-06-14 | Option exercise (derivative) | 660 | $0.00 | 311,973 |
| 2006-06-14 | Open-market sale | 660 | $19.20 | 10,001 |
| 2006-06-14 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-06-07 | Option exercise (derivative) | 660 | $0.00 | 312,633 |
| 2006-06-07 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-06-07 | Open-market sale | 660 | $21.09 | 10,001 |
| 2006-06-02 | J | 753.38 | $16.59 | 10,754.38 |
| 2006-06-02 | Open-market sale | 753.38 | $21.97 | 10,001 |
| 2006-05-31 | Option exercise (derivative) | 660 | $0.00 | 313,293 |
| 2006-05-31 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-05-31 | Open-market sale | 660 | $20.99 | 10,001 |
| 2006-05-24 | Option exercise (derivative) | 660 | $0.00 | 313,953 |
| 2006-05-24 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-05-24 | Open-market sale | 660 | $20.68 | 10,001 |
| 2006-05-17 | Option exercise (derivative) | 660 | $0.00 | 314,613 |
| 2006-05-17 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-05-17 | Open-market sale | 660 | $21.82 | 10,001 |
| 2006-05-10 | Option exercise (derivative) | 660 | $0.00 | 315,273 |
| 2006-05-10 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-05-10 | Open-market sale | 660 | $24.44 | 10,001 |
| 2006-05-03 | Option exercise (derivative) | 660 | $0.00 | 315,933 |
| 2006-05-03 | Open-market sale | 660 | $23.50 | 10,001 |
| 2006-05-03 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-04-26 | Option exercise (derivative) | 660 | $0.00 | 316,593 |
| 2006-04-26 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-04-26 | Open-market sale | 660 | $24.04 | 10,001 |
| 2006-04-19 | Option exercise (derivative) | 660 | $0.00 | 317,253 |
| 2006-04-19 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-04-19 | Open-market sale | 660 | $23.43 | 10,001 |
| 2006-04-12 | Option exercise (derivative) | 660 | $0.00 | 317,913 |
| 2006-04-12 | Open-market sale | 660 | $22.72 | 10,001 |
| 2006-04-12 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-04-05 | Option exercise (derivative) | 660 | $0.00 | 318,573 |
| 2006-04-05 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-04-05 | Open-market sale | 660 | $23.00 | 10,001 |
| 2006-03-29 | Option exercise (derivative) | 660 | $0.00 | 319,233 |
| 2006-03-29 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-03-29 | Open-market sale | 660 | $23.15 | 10,001 |
| 2006-03-22 | Option exercise (derivative) | 660 | $0.00 | 319,893 |
| 2006-03-22 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-03-22 | Open-market sale | 660 | $22.36 | 10,001 |
| 2006-03-15 | Option exercise (derivative) | 660 | $0.00 | 320,553 |
| 2006-03-15 | Open-market sale | 660 | $23.00 | 10,001 |
| 2006-03-15 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-03-08 | Option exercise (derivative) | 660 | $0.00 | 321,213 |
| 2006-03-08 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-03-08 | Open-market sale | 660 | $21.79 | 10,001 |
| 2006-03-01 | Option exercise (derivative) | 660 | $0.00 | 321,873 |
| 2006-03-01 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-03-01 | Open-market sale | 660 | $22.30 | 10,001 |
| 2006-02-22 | Option exercise (derivative) | 660 | $0.00 | 322,533 |
| 2006-02-22 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-02-22 | Open-market sale | 660 | $22.86 | 10,001 |
| 2006-02-15 | Option exercise (derivative) | 660 | $0.00 | 323,193 |
| 2006-02-15 | Option exercise | 660 | $4.43 | 10,661 |
| 2006-02-15 | Open-market sale | 660 | $21.76 | 10,001 |
| 2006-02-13 | Grant / award | 10,000 | $0.00 | 10,001 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.