1832 Asset Management
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1832 Asset Management’s iRhythm Holdings IRTC Stock Holding History

1832 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
2025
Q4 		– Sell
-28,200
Closed -$4.85M – 733
2025
Q3 		$4.85M Buy
+28,200
New +$4.48M ﹤0.01% 377

Other funds holding IRTC

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

1832 Asset Management's IRTC Position: Q4 2025 in Review

1832 Asset Management sold out of iRhythm Holdings (IRTC) in Q4 2025, closing a stake of 28,200 shares — an estimated $4.85M sold.

1832 Asset Management first reported a position in IRTC in Q3 2025 and held it in 1 quarter. The position peaked at $4.85M in Q3 2025. 334 funds tracked by Wall St. Rank hold IRTC as of Q4 2025.

  • 1832 Asset Management reported no remaining iRhythm Holdings position as of Q4 2025 after selling out during the quarter.
  • 1832 Asset Management sold 28,200 iRhythm Holdings shares in Q4 2025, an estimated $4.85M.
  • 1832 Asset Management first reported a position in iRhythm Holdings in Q3 2025 and held it in 1 quarter.
  • 1832 Asset Management's iRhythm Holdings position peaked at $4.85M in Q3 2025.
  • 334 funds tracked by Wall St. Rank held iRhythm Holdings as of Q4 2025.

Based on 1832 Asset Management's 13F filing for Q4 2025, filed 13 Feb 2026.