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Home/Insiders/Lee John Tseng-Chung
LJ
SEC Insider//CIK 0001414656

Lee John Tseng-Chung

CIK 00014146562 companiesANDOVER, MA
SEC Profile

Transactions

50

Companies

2

Filings

5

CIK

0001414656

Recent Transactions

50 trades
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-10-31−352→ 89,803.622 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-10-31−1,651→ 88,152.622 total
  • Tax Payment
    MKS INC$MKSI

    Common Stock

    2025-10-31$143.71/sh−2,003→ 147,269.523 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-10-31+352→ 147,621.523 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-10-31+1,651→ 149,272.523 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2025-05-09−1,848→ 0 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Common Stock

    2025-05-09+1,848→ 13,583 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2025-02-21−1,747→ 2,913 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Common Stock

    2025-02-21+1,747→ 11,735 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2025-02-20−6,973→ 0 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Common Stock

    2025-02-20+6,973→ 9,988 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18−22,088→ 109,051.742 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-02-18+22,088→ 155,553.316 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18−7,654→ 101,397.742 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18−6,735.326→ 131,139.742 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-02-18+6,735.326→ 133,465.316 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-02-18+4,035.12→ 167,242.436 total
  • Tax Payment
    MKS INC$MKSI

    Common Stock

    2025-02-18$103.67/sh−27,332→ 147,117.436 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18−7,207→ 90,155.622 total
  • Award
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2025-02-18+8,324→ 8,324 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-02-18+7,654→ 163,207.316 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18−14,041.44→ 137,875.068 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-02-18+7,207→ 174,449.436 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2025-02-18+14,041.44→ 126,729.99 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18−4,035.12→ 97,362.622 total
  • Award
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-18+37,925.476→ 151,916.508 total
  • Award
    MKS INC$MKSI

    Restricted Stock Unit

    2025-02-10+12,106.58→ 113,991.032 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-12-06−2,010→ 102,868.452 total
  • Tax Payment
    MKS INC$MKSI

    Common Stock

    2024-12-06$114.60/sh−2,994→ 112,688.55 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-12-06+984→ 115,682.55 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-12-06+2,010→ 114,698.55 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-12-06−984→ 101,884.452 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2024-05-09−1,109→ 1,848 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Common Stock

    2024-05-09+1,109→ 3,015 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Common Stock

    2024-02-21+1,166→ 1,906 total
  • Exercise/Conversion
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2024-02-21−1,166→ 4,660 total
  • Award
    COGNEX CORP$CGNX

    Restricted Stock Unit

    2024-02-20+6,973→ 6,973 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15−23,093→ 112,531.452 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-02-15+3,777.847→ 91,151.011 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-02-15+7,653→ 142,672.011 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-02-15+23,093→ 135,019.011 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15−7,653→ 104,878.452 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15−6,734→ 135,624.452 total
  • Tax Payment
    MKS INC$MKSI

    Common Stock

    2024-02-15$122.15/sh−30,231→ 112,441.011 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15−3,777.847→ 156,399.452 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15−9,235.403→ 160,177.299 total
  • Exercise/Conversion
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15−14,041→ 142,358.452 total
  • Award
    MKS INC$MKSI

    Restricted Stock Unit

    2024-02-15+22,607.994→ 169,412.702 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-02-15+6,734→ 111,926.011 total
  • Exercise/Conversion
    MKS INC$MKSI

    Common Stock

    2024-02-15+9,235.403→ 87,373.164 total

Companies

2

Recent Filings

5

Address

2 TECH DRIVE

ANDOVER, MA, 01810

View on SEC.gov