IRHYTHM TECHNOLOGIES INC

Ticker: IRTC CUSIP: 450056106 Class: EQTY

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 606,969 Value ($000) $107,701 Avg Close $177.21 Range $155.00 - $212.00

Q3 2025

Shares 541,039 Value ($000) $93,053 Avg Close $158.94 Range $129.48 - $187.57

Q2 2025

Shares 8,304 Value ($000) $1,278 Avg Close $129.23 Range $92.52 - $157.13

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	606,969	$107,701	$177.21	$155.00 - $212.00
Q3 2025	541,039	$93,053	$158.94	$129.48 - $187.57
Q2 2025	8,304	$1,278	$129.23	$92.52 - $157.13