Dimensional Fund Advisors
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Dimensional Fund Advisors’s iRhythm Holdings IRTC Stock Holding History

Dimensional Fund Advisors’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
-5,387
Closed -$927K – 3280
2025
Q3 		$927K Buy
+5,387
New +$856K ﹤0.01% 2901
2023
Q1 		– Sell
-11,024
Closed -$1.03K – 3484
2022
Q4 		$1.03K Sell
11,024
-2,166
-16% -$236K ﹤0.01% 2895
2022
Q3 		$1.65M Sell
13,190
-30,636
-70% -$4.42M ﹤0.01% 2768
2022
Q2 		$4.74M Sell
43,826
-24,666
-36% -$3.27M ﹤0.01% 2464
2022
Q1 		$10.8M Buy
68,492
+2,603
+4% +$334K ﹤0.01% 2263
2021
Q4 		$7.75M Buy
65,889
+49,562
+304% +$4.55M ﹤0.01% 2406
2021
Q3 		$956K Buy
16,327
+1,083
+7% +$57.4K ﹤0.01% 3057
2021
Q2 		$1.01M Sell
15,244
-3,677
-19% -$291K ﹤0.01% 3024
2021
Q1 		$2.63M Buy
18,921
+5,281
+39% +$946K ﹤0.01% 2780
2020
Q4 		$3.23M Buy
13,640
+7,671
+129% +$1.75M ﹤0.01% 2674
2020
Q3 		$1.42M Buy
+5,969
New +$1.06M ﹤0.01% 2839

Other funds holding IRTC

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 1-Year Est. Return

Dimensional Fund Advisors's IRTC Position: Q4 2025 in Review

Dimensional Fund Advisors sold out of iRhythm Holdings (IRTC) in Q4 2025, closing a stake of 5,387 shares — an estimated $927K sold.

Dimensional Fund Advisors first reported a position in IRTC in Q3 2020 and held it in 11 quarters. The position peaked at $10.8M in Q1 2022. 334 funds tracked by Wall St. Rank hold IRTC as of Q4 2025.

  • Dimensional Fund Advisors reported no remaining iRhythm Holdings position as of Q4 2025 after selling out during the quarter.
  • Dimensional Fund Advisors sold 5,387 iRhythm Holdings shares in Q4 2025, an estimated $927K.
  • Dimensional Fund Advisors first reported a position in iRhythm Holdings in Q3 2020 and held it in 11 quarters.
  • Dimensional Fund Advisors's iRhythm Holdings position peaked at $10.8M in Q1 2022.
  • 334 funds tracked by Wall St. Rank held iRhythm Holdings as of Q4 2025.

Based on Dimensional Fund Advisors's 13F filing for Q4 2025, filed 12 Feb 2026.