IRHYTHM TECHNOLOGIES INC

Ticker: IRTC CUSIP: 450056106 Class: EQTY

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q3 2021

Shares 22 Value ($000) $1 Avg Close $52.99 Range $41.66 - $67.28

Q4 2020

Shares 2,340 Value ($000) $555 Avg Close $227.91 Range $179.01 - $274.21

Q4 2017

Shares 2,100 Value ($000) $118 Avg Close $52.26 Range $46.95 - $57.91

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	22	$1	$52.99	$41.66 - $67.28
Q4 2020	2,340	$555	$227.91	$179.01 - $274.21
Q4 2017	2,100	$118	$52.26	$46.95 - $57.91