Balyasny Asset Management
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Balyasny Asset Management’s iRhythm Holdings IRTC Stock Holding History

Balyasny Asset 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
2024
Q4 		– Sell
-100,000
Closed -$7.42M – 2996
2024
Q3 		$7.42M Buy
+100,000
New +$7.96M 0.01% 1085
2024
Q1 		– Sell
-13,500
Closed -$1.45M – 2857
2023
Q4 		$1.45M Buy
+13,500
New +$1.18M ﹤0.01% 1550
2018
Q4 		– Sell
-100,000
Closed -$9.29M – 1553
2018
Q3 		$9.29M Buy
+100,000
New +$8.71M 0.04% 513

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

Balyasny Asset Management's IRTC Position: Q1 2026 in Review

Balyasny Asset Management increased its iRhythm Holdings (IRTC) stake by 16% in Q1 2026, buying an estimated $3.92M and bringing the position to 194,429 shares worth $22.9M. The position accounts for 0.03% of the portfolio, ranked #629.

Balyasny Asset Management first reported a position in IRTC in Q2 2017 and has held it in 28 quarters since. The position peaked at $46.7M in Q1 2023. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

  • Balyasny Asset Management held 194,429 shares of iRhythm Holdings worth $22.9M as of Q1 2026.
  • Balyasny Asset Management bought 27,155 iRhythm Holdings shares in Q1 2026, an estimated $3.92M.
  • iRhythm Holdings made up 0.03% of Balyasny Asset Management's portfolio in Q1 2026, its #629 holding.
  • Balyasny Asset Management first reported a position in iRhythm Holdings in Q2 2017 and has held it in 28 quarters since.
  • Balyasny Asset Management's iRhythm Holdings position peaked at $46.7M in Q1 2023.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

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