Parkman Healthcare Partners’s iRhythm Holdings IRTC Stock Holding History

Parkman Healthcare Partners’s Portfolio IRTC Stock Details IRTC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$8M	Buy	67,267 +27,142	+68%	+$3.16M	0.82%	44
2026 Q1	$4.74M	Buy	+40,125	New	+$5.79M	0.49%	58
2022 Q4	–	Sell	-25,458	Closed	-$3.19M	–	89
2022 Q3	$3.19M	Sell	25,458 -48,543	-66%	-$7.01M	0.91%	41
2022 Q2	$7.99M	Sell	74,001 -29,980	-29%	-$3.97M	2.94%	10
2022 Q1	$16.4M	Buy	103,981 +42,001	+68%	+$5.39M	4.79%	1
2021 Q4	$7.29M	Buy	61,980 +29,480	+91%	+$2.7M	1.61%	24
2021 Q3	$1.9M	Buy	+32,500	New	+$1.72M	0.48%	55

Other funds holding IRTC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

EAM

Eventide Asset Management Boston, Massachusetts $7.48B AUM 104.76% 1-Year Est. Return

Parkman Healthcare Partners's IRTC Position: Q2 2026 in Review

Parkman Healthcare Partners increased its iRhythm Holdings (IRTC) stake by 68% in Q2 2026, buying an estimated $3.16M and bringing the position to 67,267 shares worth $8M. The position accounts for 0.82% of the portfolio, ranked #44.

Parkman Healthcare Partners first reported a position in IRTC in Q3 2021 and has held it in 7 quarters since. The position peaked at $16.4M in Q1 2022. 303 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

Parkman Healthcare Partners held 67,267 shares of iRhythm Holdings worth $8M as of Q2 2026.
Parkman Healthcare Partners bought 27,142 iRhythm Holdings shares in Q2 2026, an estimated $3.16M.
iRhythm Holdings made up 0.82% of Parkman Healthcare Partners's portfolio in Q2 2026, its #44 holding.
Parkman Healthcare Partners first reported a position in iRhythm Holdings in Q3 2021 and has held it in 7 quarters since.
Parkman Healthcare Partners's iRhythm Holdings position peaked at $16.4M in Q1 2022.
303 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Parkman Healthcare Partners's 13F filing for Q2 2026, filed 14 Aug 2026.