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LMR Partners’s iRhythm Holdings IRTC Stock Holding History

LMR 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
Q1 		$54.6K Buy
+463
New +$66.8K ﹤0.01% 1302
2024
Q2 		– Sell
-19,900
Closed -$2.31M – 1200
2024
Q1 		$2.31M Buy
+19,900
New +$2.24M 0.02% 522

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

LMR Partners's IRTC Position: Q1 2026 in Review

LMR Partners opened a new position in iRhythm Holdings (IRTC) in Q1 2026: 463 shares worth $54.6K. The stake represents ﹤0.01% of the portfolio and ranks #1302 among its holdings. This is a return to the name: LMR Partners previously reported a position in IRTC as recently as Q1 2024.

LMR Partners first reported a position in IRTC in Q1 2024 and has held it in 2 quarters since. The position peaked at $2.31M in Q1 2024. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

  • LMR Partners held 463 shares of iRhythm Holdings worth $54.6K as of Q1 2026.
  • iRhythm Holdings was a new LMR Partners position in Q1 2026.
  • iRhythm Holdings made up ﹤0.01% of LMR Partners's portfolio in Q1 2026, its #1302 holding.
  • LMR Partners first reported a position in iRhythm Holdings in Q1 2024 and has held it in 2 quarters since.
  • LMR Partners's iRhythm Holdings position peaked at $2.31M in Q1 2024.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on LMR Partners's 13F filing for Q1 2026, filed 15 May 2026.