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Quantinno Capital Management’s iRhythm Holdings IRTC Stock Holding History

Quantinno Capital 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
2026
Q2 		$637K Sell
5,356
-13,265
-71% -$1.54M ﹤0.01% 2858
2026
Q1 		$2.2M Buy
18,621
+17,158
+1,173% +$2.48M ﹤0.01% 1559
2025
Q4 		$260K Buy
1,463
+165
+13% +$29.2K ﹤0.01% 2916
2025
Q3 		$223K Buy
+1,298
New +$206K ﹤0.01% 2694

Other funds holding IRTC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
EAM
Eventide Asset Management Boston, Massachusetts $7.48B AUM 104.76% 1-Year Est. Return

Quantinno Capital Management's IRTC Position: Q2 2026 in Review

Quantinno Capital Management reduced its iRhythm Holdings (IRTC) stake by 71% in Q2 2026, selling an estimated $1.54M and leaving 5,356 shares worth $637K. The position accounts for ﹤0.01% of the portfolio, ranked #2858.

Quantinno Capital Management first reported a position in IRTC in Q3 2025 and has held it in 4 quarters since. The position peaked at $2.2M in Q1 2026. 303 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Quantinno Capital Management held 5,356 shares of iRhythm Holdings worth $637K as of Q2 2026.
  • Quantinno Capital Management sold 13,265 iRhythm Holdings shares in Q2 2026, an estimated $1.54M.
  • iRhythm Holdings made up ﹤0.01% of Quantinno Capital Management's portfolio in Q2 2026, its #2858 holding.
  • Quantinno Capital Management first reported a position in iRhythm Holdings in Q3 2025 and has held it in 4 quarters since.
  • Quantinno Capital Management's iRhythm Holdings position peaked at $2.2M in Q1 2026.
  • 303 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Quantinno Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.