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O'Shaughnessy Asset Management’s iRhythm Holdings IRTC Stock Holding History

O'Shaughnessy 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
2026
Q2 		$237K Buy
1,996
+150
+8% +$17.4K ﹤0.01% 1954
2026
Q1 		$218K Sell
1,846
-1,283
-41% -$185K ﹤0.01% 1946
2025
Q4 		$555K Sell
3,129
-459
-13% -$81.3K ﹤0.01% 1446
2025
Q3 		$617K Buy
3,588
+343
+11% +$54.5K ﹤0.01% 1375
2025
Q2 		$500K Buy
+3,245
New +$419K ﹤0.01% 1380
2024
Q2 		– Sell
-4,073
Closed -$472K – 2006
2024
Q1 		$472K Buy
4,073
+30
+0.7% +$3.37K 0.01% 1124
2023
Q4 		$433K Buy
4,043
+18
+0.4% +$1.57K 0.01% 1067
2023
Q3 		$379K Buy
+4,025
New +$409K 0.01% 1020
2023
Q2 		– Sell
-4,037
Closed -$501K – 1541
2023
Q1 		$501K Sell
4,037
-10
-0.2% -$1.08K 0.01% 867
2022
Q4 		$379K Sell
4,047
-73
-2% -$7.95K 0.01% 883
2022
Q3 		$516K Buy
+4,120
New +$595K 0.01% 723
2022
Q2 		– Sell
-1,678
Closed -$264K – 1307
2022
Q1 		$264K Buy
+1,678
New +$215K ﹤0.01% 947
2021
Q4 		– Sell
-6
Closed – – 1844
2021
Q3 		$0 Sell
6
-1,886
-100% -$99.9K ﹤0.01% 2792
2021
Q2 		$125K Hold
1,892
– – ﹤0.01% 1221
2021
Q1 		$263K Sell
1,892
-22
-1% -$3.94K 0.01% 821
2020
Q4 		$454K Buy
1,914
+1,908
+31,800% +$435K 0.01% 539
2020
Q3 		$1K Hold
6
– – ﹤0.01% 1745
2020
Q2 		$1K Buy
+6
New +$662 ﹤0.01% 1609

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

O'Shaughnessy Asset Management's IRTC Position: Q2 2026 in Review

O'Shaughnessy Asset Management increased its iRhythm Holdings (IRTC) stake by 8.1% in Q2 2026, buying an estimated $17.4K and bringing the position to 1,996 shares worth $237K. The position accounts for ﹤0.01% of the portfolio, ranked #1954.

O'Shaughnessy Asset Management first reported a position in IRTC in Q2 2020 and has held it in 18 quarters since. The position peaked at $617K in Q3 2025. 303 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • O'Shaughnessy Asset Management held 1,996 shares of iRhythm Holdings worth $237K as of Q2 2026.
  • O'Shaughnessy Asset Management bought 150 iRhythm Holdings shares in Q2 2026, an estimated $17.4K.
  • iRhythm Holdings made up ﹤0.01% of O'Shaughnessy Asset Management's portfolio in Q2 2026, its #1954 holding.
  • O'Shaughnessy Asset Management first reported a position in iRhythm Holdings in Q2 2020 and has held it in 18 quarters since.
  • O'Shaughnessy Asset Management's iRhythm Holdings position peaked at $617K in Q3 2025.
  • 303 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on O'Shaughnessy Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.