Barclays
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Barclays’s iRhythm Holdings IRTC Stock Holding History

Barclays’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
2020
Q3 		– Sell
-14,000
Closed -$1.62M – 5381
2020
Q2 		$1.62M Buy
+14,000
New +$1.54M ﹤0.01% 2317
2019
Q3 		– Sell
-110,500
Closed -$8.74M – 6911
2019
Q2 		$8.74M Buy
110,500
+79,000
+251% +$5.75M 0.01% 1443
2019
Q1 		$2.36M Buy
+31,500
New +$2.69M ﹤0.01% 2390

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

Barclays's IRTC Position: Q2 2026 in Review

Barclays increased its iRhythm Holdings (IRTC) stake by 1.8% in Q2 2026, buying an estimated $401K and bringing the position to 191,798 shares worth $22.8M. The position accounts for ﹤0.01% of the portfolio, ranked #1062.

Barclays first reported a position in IRTC in Q1 2017 and has held it in 36 quarters since. The position peaked at $34.4M in Q4 2025. 303 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Barclays held 191,798 shares of iRhythm Holdings worth $22.8M as of Q2 2026.
  • Barclays bought 3,453 iRhythm Holdings shares in Q2 2026, an estimated $401K.
  • iRhythm Holdings made up ﹤0.01% of Barclays's portfolio in Q2 2026, its #1062 holding.
  • Barclays first reported a position in iRhythm Holdings in Q1 2017 and has held it in 36 quarters since.
  • Barclays's iRhythm Holdings position peaked at $34.4M in Q4 2025.
  • 303 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Barclays's 13F filing for Q2 2026, filed 14 Aug 2026.