UBS Group
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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
2021
Q2 		– Sell
-2,300
Closed -$319K – 9581
2021
Q1 		$319K Sell
2,300
-500
-18% -$89.6K ﹤0.01% 5176
2020
Q4 		$664K Buy
+2,800
New +$638K ﹤0.01% 4360

Other funds holding IRTC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Holocene Advisors
Holocene Advisors New York $41.5B AUM 42.97% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
Geode Capital Management
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.