MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2025
Shares 3,885 Value ($000) $621 Avg Close $148.21 Range $120.73 - $170.37
Q3 2025
Shares 7,885 Value ($000) $976 Avg Close $106.31 Range $88.17 - $132.24
Q2 2025
Shares 8,485 Value ($000) $843 Avg Close $80.86 Range $54.50 - $100.44
Q1 2025
Shares 8,545 Value ($000) $685 Avg Close $100.21 Range $75.89 - $124.28
Q4 2024
Shares 4,060 Value ($000) $424 Avg Close $106.91 Range $96.54 - $118.37
Q3 2024
Shares 2,960 Value ($000) $322 Avg Close $117.45 Range $99.10 - $145.63
Q2 2013
Shares 8,000 Value ($000) $212 Avg Close $23.45 Range $21.31 - $25.25