UBS Group’s iRhythm Holdings IRTC Stock Holding History

UBS Group’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
2024 Q4	–	Sell	-28,000	Closed	-$2.08M	–	10163
2024 Q3	$2.08M	Hold	28,000	–	–	﹤0.01%	3951
2024 Q2	$3.01M	Hold	28,000	–	–	﹤0.01%	3344
2024 Q1	$3.25M	Hold	28,000	–	–	﹤0.01%	3429
2023 Q4	$3M	Sell	28,000 -9,000	-24%	-$784K	﹤0.01%	3363
2023 Q3	$3.49M	Buy	37,000 +7,000	+23%	+$712K	﹤0.01%	2923
2023 Q2	$3.13M	Hold	30,000	–	–	﹤0.01%	3062
2023 Q1	$3.72M	Hold	30,000	–	–	﹤0.01%	2808
2022 Q4	$2.81M	Hold	30,000	–	–	﹤0.01%	3036
2022 Q3	$3.76M	Buy	+30,000	New	+$4.33M	﹤0.01%	2611
2021 Q2	–	Sell	-2,300	Closed	-$319K	–	9582
2021 Q1	$319K	Sell	2,300 -500	-18%	-$89.6K	﹤0.01%	5177
2020 Q4	$664K	Buy	+2,800	New	+$638K	﹤0.01%	4361

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

Millennium Management New York $240B AUM 35.51% 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

UBS Group's IRTC Position: Q1 2026 in Review

UBS Group reduced its iRhythm Holdings (IRTC) stake by 40% in Q1 2026, selling an estimated $8.85M and leaving 91,903 shares worth $10.8M. The position accounts for ﹤0.01% of the portfolio, ranked #3236.

UBS Group first reported a position in IRTC in Q4 2016 and has held it in 38 quarters since. The position peaked at $27.2M in Q4 2025. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

UBS Group held 91,903 shares of iRhythm Holdings worth $10.8M as of Q1 2026.
UBS Group sold 61,315 iRhythm Holdings shares in Q1 2026, an estimated $8.85M.
iRhythm Holdings made up ﹤0.01% of UBS Group's portfolio in Q1 2026, its #3236 holding.
UBS Group first reported a position in iRhythm Holdings in Q4 2016 and has held it in 38 quarters since.
UBS Group's iRhythm Holdings position peaked at $27.2M in Q4 2025.
304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on UBS Group's 13F filing for Q1 2026, filed 5 May 2026.