Lee John Tseng-Chung

CIK 00014146562 companiesANDOVER, MA

SEC Profile

Transactions

Companies

Filings

CIK

0001414656

Recent Transactions

50 trades

Sale
MKS INC$MKSI
Common Stock
2026-05-22$315.48/sh−10,000→ 144,696.108 total
Exercise/Conversion
COGNEX CORP$CGNX
Restricted Stock Unit
2026-02-21−2,913→ 0 total
Exercise/Conversion
COGNEX CORP$CGNX
Common Stock
2026-02-21+2,913→ 24,820 total
Sale
MKS INC$MKSI
Common Stock
2026-02-20$256.93/sh−12,812→ 158,574.108 total
Sale
MKS INC$MKSI
Common Stock
2026-02-20$256.05/sh−13,310→ 171,386.108 total
Sale
MKS INC$MKSI
Common Stock
2026-02-20$259.70/sh−1,890→ 154,696.108 total
Sale
MKS INC$MKSI
Common Stock
2026-02-20$257.81/sh−1,988→ 156,586.108 total
Exercise/Conversion
COGNEX CORP$CGNX
Restricted Stock Unit
2026-02-18−8,324→ 0 total
Exercise/Conversion
COGNEX CORP$CGNX
Common Stock
2026-02-18+8,324→ 21,907 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2026-02-17+12,091→ 217,244.415 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2026-02-17−7,208→ 113,908.561 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2026-02-17−3,859.12→ 121,116.561 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2026-02-17−7,653.601→ 124,975.681 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2026-02-17−22,088.091→ 132,629.282 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2026-02-17−16,989.44→ 96,919.121 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2026-02-17−12,091→ 84,828.121 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2026-02-17+7,653.601→ 177,096.855 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2026-02-17+22,088.091→ 169,443.254 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2026-02-17+3,859.12→ 180,955.975 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2026-02-17+16,989.44→ 205,153.415 total
Award
COGNEX CORP$CGNX
Restricted Stock Unit
2026-02-17+4,817→ 4,817 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2026-02-17+7,208→ 188,163.975 total
Tax Payment
MKS INC$MKSI
Common Stock
2026-02-17$260.74/sh−32,548.307→ 184,696.108 total
Award
MKS INC$MKSI
Restricted Stock Unit
2026-02-17+15,592.911→ 154,717.373 total
Award
MKS INC$MKSI
Restricted Stock Unit
2026-02-08+50,971.84→ 139,124.462 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2025-10-31−1,651→ 88,152.622 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2025-10-31−352→ 89,803.622 total
Exercise/Conversion
MKS INC$MKSI
Common Stock
2025-10-31+352→ 147,621.523 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+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
Restricted Stock Unit
2025-02-18−7,654→ 101,397.742 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2025-02-18−6,735.326→ 131,139.742 total
Award
MKS INC$MKSI
Restricted Stock Unit
2025-02-18+37,925.476→ 151,916.508 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
Common Stock
2025-02-18+6,735.326→ 133,465.316 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
2025-02-18−7,207→ 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$MKSI
Common Stock
2025-02-18+14,041.44→ 126,729.99 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2025-02-18−14,041.44→ 137,875.068 total
Exercise/Conversion
MKS INC$MKSI
Restricted Stock Unit
2025-02-18−4,035.12→ 97,362.622 total

Companies

Recent Filings

Address

C/O MKS INC. 2 TECH DRIVE

ANDOVER, MA, 01810

View on SEC.gov