MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

OSTERWEIS CAPITAL MANAGEMENT INC's Holding History (CIK: 0001007524)

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

Q2 2021

Shares 31,475 Value ($000) $5,601 Avg Close $175.09 Range $158.98 - $192.11

Q1 2021

Shares 42,175 Value ($000) $7,820 Avg Close $161.78 Range $138.78 - $185.00

Q4 2020

Shares 33,205 Value ($000) $4,996 Avg Close $125.75 Range $101.82 - $152.08

Q3 2020

Shares 24,660 Value ($000) $2,694 Avg Close $112.47 Range $97.77 - $124.64

Q2 2020

Shares 17,005 Value ($000) $1,926 Avg Close $95.31 Range $70.45 - $112.06

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	31,475	$5,601	$175.09	$158.98 - $192.11
Q1 2021	42,175	$7,820	$161.78	$138.78 - $185.00
Q4 2020	33,205	$4,996	$125.75	$101.82 - $152.08
Q3 2020	24,660	$2,694	$112.47	$97.77 - $124.64
Q2 2020	17,005	$1,926	$95.31	$70.45 - $112.06