Millennium Management’s iRhythm Holdings IRTC Stock Holding History

Millennium Management’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
2023 Q4	–	Sell	-15,200	Closed	-$1.43M	–	6295
2023 Q3	$1.43M	Sell	15,200 -7,800	-34%	-$793K	﹤0.01%	3884
2023 Q2	$2.4M	Sell	23,000 -31,900	-58%	-$3.83M	﹤0.01%	3313
2023 Q1	$6.81M	Buy	+54,900	New	+$5.95M	﹤0.01%	2322
2022 Q3	–	Sell	-7,500	Closed	-$810K	–	7270
2022 Q2	$810K	Buy	+7,500	New	+$994K	﹤0.01%	4564
2021 Q1	–	Sell	-10,000	Closed	-$2.37M	–	6212
2020 Q4	$2.37M	Sell	10,000 -7,000	-41%	-$1.6M	﹤0.01%	3108
2020 Q3	$4.05K	Buy	+17,000	New	+$3.01M	0.01%	2029
2019 Q2	–	Sell	-50,000	Closed	-$3.75M	–	4245
2019 Q1	$3.75M	Buy	+50,000	New	+$4.27M	0.01%	1960
2018 Q1	–	Sell	-20,000	Closed	-$1.12M	–	3857
2017 Q4	$1.12M	Buy	20,000 +10,000	+100%	+$523K	﹤0.01%	2637
2017 Q3	$519K	Buy	+10,000	New	+$453K	﹤0.01%	2824

Other funds holding IRTC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Holocene Advisors New York $41.5B AUM 42.97% 1-Year Est. Return

UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Millennium Management's IRTC Position: Q1 2026 in Review

Millennium Management increased its iRhythm Holdings (IRTC) stake by 95% in Q1 2026, buying an estimated $113M and bringing the position to 1,608,014 shares worth $190M. The position accounts for 0.08% of the portfolio, ranked #221.

Millennium Management first reported a position in IRTC in Q4 2016 and has held it in 36 quarters since. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

Millennium Management held 1,608,014 shares of iRhythm Holdings worth $190M as of Q1 2026.
Millennium Management bought 781,638 iRhythm Holdings shares in Q1 2026, an estimated $113M.
iRhythm Holdings made up 0.08% of Millennium Management's portfolio in Q1 2026, its #221 holding.
Millennium Management first reported a position in iRhythm Holdings in Q4 2016 and has held it in 36 quarters since.
304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.