Wellington Management Group
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Wellington Management Group’s iRhythm Holdings IRTC Stock Holding History

Wellington Management Group’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 		$10.5M Sell
88,257
-2,203
-2% -$256K ﹤0.01% 1279
2026
Q1 		$10.7M Sell
90,460
-317,796
-78% -$45.9M ﹤0.01% 1222
2025
Q4 		$72.4M Sell
408,256
-14,406
-3% -$2.55M 0.01% 631
2025
Q3 		$72.7M Buy
422,662
+27,346
+7% +$4.35M 0.01% 634
2025
Q2 		$60.9M Buy
395,316
+229,674
+139% +$29.7M 0.01% 638
2025
Q1 		$17.3M Sell
165,642
-68,198
-29% -$7.22M ﹤0.01% 1008
2024
Q4 		$21.1M Buy
233,840
+19,891
+9% +$1.56M ﹤0.01% 960
2024
Q3 		$15.9M Buy
213,949
+12,478
+6% +$994K ﹤0.01% 1027
2024
Q2 		$21.7M Sell
201,471
-7,527
-4% -$769K ﹤0.01% 932
2024
Q1 		$24.2M Sell
208,998
-8,973
-4% -$1.01M ﹤0.01% 901
2023
Q4 		$23.3M Sell
217,971
-1,196
-0.5% -$104K ﹤0.01% 900
2023
Q3 		$20.7M Buy
+219,167
New +$22.3M ﹤0.01% 928
2023
Q1 		– Sell
-6,435
Closed -$603K – 2048
2022
Q4 		$603K Sell
6,435
-65,892
-91% -$7.17M ﹤0.01% 1772
2022
Q3 		$9.06M Sell
72,327
-1,780
-2% -$257K ﹤0.01% 1126
2022
Q2 		$8.01M Sell
74,107
-21,086
-22% -$2.79M ﹤0.01% 1168
2022
Q1 		$15M Sell
95,193
-212,977
-69% -$27.3M ﹤0.01% 1083
2021
Q4 		$36.3M Sell
308,170
-806,529
-72% -$74M 0.01% 936
2021
Q3 		$65.3M Buy
1,114,699
+20,364
+2% +$1.08M 0.01% 737
2021
Q2 		$72.6M Buy
1,094,335
+1,025,138
+1,481% +$81.2M 0.01% 718
2021
Q1 		$9.61M Sell
69,197
-62,290
-47% -$11.2M ﹤0.01% 1252
2020
Q4 		$31.2M Sell
131,487
-24,230
-16% -$5.52M 0.01% 928
2020
Q3 		$37.1M Sell
155,717
-223,831
-59% -$39.6M 0.01% 776
2020
Q2 		$44M Sell
379,548
-597,231
-61% -$65.8M 0.01% 730
2020
Q1 		$79.5M Sell
976,779
-352,744
-27% -$29.3M 0.02% 517
2019
Q4 		$90.5M Sell
1,329,523
-152,722
-10% -$10.4M 0.02% 595
2019
Q3 		$110M Buy
1,482,245
+683,281
+86% +$52.9M 0.02% 521
2019
Q2 		$63.2M Buy
798,964
+693,515
+658% +$50.5M 0.01% 692
2019
Q1 		$7.9M Buy
+105,449
New +$9.01M ﹤0.01% 1268

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

Wellington Management Group's IRTC Position: Q2 2026 in Review

Wellington Management Group reduced its iRhythm Holdings (IRTC) stake by 2.4% in Q2 2026, selling an estimated $256K and leaving 88,257 shares worth $10.5M. The position accounts for ﹤0.01% of the portfolio, ranked #1279.

Wellington Management Group first reported a position in IRTC in Q1 2019 and has held it in 28 quarters since. The position peaked at $110M in Q3 2019. 303 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Wellington Management Group held 88,257 shares of iRhythm Holdings worth $10.5M as of Q2 2026.
  • Wellington Management Group sold 2,203 iRhythm Holdings shares in Q2 2026, an estimated $256K.
  • iRhythm Holdings made up ﹤0.01% of Wellington Management Group's portfolio in Q2 2026, its #1279 holding.
  • Wellington Management Group first reported a position in iRhythm Holdings in Q1 2019 and has held it in 28 quarters since.
  • Wellington Management Group's iRhythm Holdings position peaked at $110M in Q3 2019.
  • 303 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Wellington Management Group's 13F filing for Q2 2026, filed 14 Aug 2026.