MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Harvey Partners, LLC's Holding History (CIK: 0001406484)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 289,197 Value ($000) $46,214 Avg Close $148.21 Range $120.73 - $170.37
Q3 2025
Shares 289,000 Value ($000) $35,770 Avg Close $106.31 Range $88.17 - $132.24
Q2 2025
Shares 269,599 Value ($000) $26,787 Avg Close $80.86 Range $54.50 - $100.44
Q1 2025
Shares 261,000 Value ($000) $20,919 Avg Close $100.21 Range $75.89 - $124.28
Q4 2024
Shares 189,500 Value ($000) $19,782 Avg Close $106.91 Range $96.54 - $118.37
Q3 2024
Shares 170,000 Value ($000) $18,481 Avg Close $117.45 Range $99.10 - $145.63
Q2 2024
Shares 145,500 Value ($000) $18,999 Avg Close $124.55 Range $105.72 - $137.52
Q1 2024
Shares 155,000 Value ($000) $20,615 Avg Close $114.51 Range $94.23 - $132.85
Q4 2023
Shares 149,500 Value ($000) $15,379 Avg Close $79.84 Range $62.28 - $104.49
Q3 2023
Shares 164,500 Value ($000) $14,236 Avg Close $95.58 Range $81.25 - $107.67
Q2 2023
Shares 155,000 Value ($000) $16,756 Avg Close $89.53 Range $77.81 - $108.20