IRHYTHM TECHNOLOGIES INC

Ticker: IRTC CUSIP: 450056106 Class: EQTY

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2025

Shares 71,048 Value ($000) $12,607 Avg Close $177.21 Range $155.00 - $212.00

Q3 2025

Shares 89,230 Value ($000) $15,347 Avg Close $158.94 Range $129.48 - $187.57

Q2 2025

Shares 106,415 Value ($000) $16,384 Avg Close $129.23 Range $92.52 - $157.13

Q1 2025

Shares 224,910 Value ($000) $23,544 Avg Close $105.91 Range $86.55 - $128.52

Q4 2024

Shares 355,147 Value ($000) $32,024 Avg Close $78.57 Range $55.92 - $92.38

Q3 2024

Shares 76,404 Value ($000) $5,672 Avg Close $79.65 Range $60.88 - $109.50

Q2 2018

Shares 12,770 Value ($000) $1,036 Avg Close $69.92 Range $55.18 - $84.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	71,048	$12,607	$177.21	$155.00 - $212.00
Q3 2025	89,230	$15,347	$158.94	$129.48 - $187.57
Q2 2025	106,415	$16,384	$129.23	$92.52 - $157.13
Q1 2025	224,910	$23,544	$105.91	$86.55 - $128.52
Q4 2024	355,147	$32,024	$78.57	$55.92 - $92.38
Q3 2024	76,404	$5,672	$79.65	$60.88 - $109.50
Q2 2018	12,770	$1,036	$69.92	$55.18 - $84.70