IRHYTHM TECHNOLOGIES INC

Ticker: IRTC CUSIP: 450056106 Class: EQTY

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

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

Q2 2018

Shares 60,545 Value ($000) $4,912 Avg Close $69.92 Range $55.18 - $84.70

Q1 2018

Shares 40,400 Value ($000) $2,543 Avg Close $61.91 Range $55.21 - $68.07

Q4 2017

Shares 48,800 Value ($000) $2,735 Avg Close $52.26 Range $46.95 - $57.91

Q3 2017

Shares 56,480 Value ($000) $2,930 Avg Close $45.28 Range $40.12 - $52.43

Q2 2017

Shares 77,225 Value ($000) $3,281 Avg Close $36.42 Range $32.10 - $43.07

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	60,545	$4,912	$69.92	$55.18 - $84.70
Q1 2018	40,400	$2,543	$61.91	$55.21 - $68.07
Q4 2017	48,800	$2,735	$52.26	$46.95 - $57.91
Q3 2017	56,480	$2,930	$45.28	$40.12 - $52.43
Q2 2017	77,225	$3,281	$36.42	$32.10 - $43.07