MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q3 2019
Shares 6,000 Value ($000) $554 Avg Close $78.64 Range $68.69 - $91.29