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
2026 Q1	$7.38M	Buy	+62,500	New	+$9.02M	﹤0.01%	2506
2024 Q4	–	Sell	-377,600	Closed	-$28M	–	6196
2024 Q3	$28M	Buy	377,600 +307,600	+439%	+$24.5M	0.01%	1250
2024 Q2	$7.53M	Sell	70,000 -30,000	-30%	-$3.06M	﹤0.01%	2339
2024 Q1	$11.6M	Buy	100,000 +85,000	+567%	+$9.56M	0.01%	2045
2023 Q4	$1.61M	Sell	15,000 -120,200	-89%	-$10.5M	﹤0.01%	3791
2023 Q3	$12.7M	Buy	135,200 +75,200	+125%	+$7.65M	0.01%	1821
2023 Q2	$6.26M	Sell	60,000 -61,000	-50%	-$7.32M	﹤0.01%	2451
2023 Q1	$15M	Buy	+121,000	New	+$13.1M	0.01%	1585
2022 Q3	–	Sell	-35,000	Closed	-$3.78M	–	7269
2022 Q2	$3.78M	Buy	+35,000	New	+$4.64M	﹤0.01%	3077
2021 Q3	–	Sell	-35,000	Closed	-$2.32M	–	7011
2021 Q2	$2.32M	Sell	35,000 -5,000	-13%	-$396K	﹤0.01%	3781
2021 Q1	$5.55M	Buy	+40,000	New	+$7.17M	﹤0.01%	2456
2019 Q4	–	Sell	-13,000	Closed	-$963K	–	4418
2019 Q3	$963K	Buy	13,000 +8,000	+160%	+$620K	﹤0.01%	2878
2019 Q2	$395K	Buy	+5,000	New	+$364K	﹤0.01%	3385

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.