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PFM Health Sciences’s iRhythm Holdings IRTC Stock Holding History

PFM Health Sciences’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 		$7.76M Buy
+65,196
New +$7.58M 0.67% 52
2025
Q4 		– Sell
-64,998
Closed -$11.2M – 91
2025
Q3 		$11.2M Sell
64,998
-23,159
-26% -$3.68M 0.86% 39
2025
Q2 		$13.6M Buy
+88,157
New +$11.4M 1.16% 29
2023
Q4 		– Sell
-485,468
Closed -$45.8M – 72
2023
Q3 		$45.8M Hold
485,468
– – 2.16% 17
2023
Q2 		$50.6M Hold
485,468
– – 1.97% 17
2023
Q1 		$60.2M Sell
485,468
-8,253
-2% -$895K 2.66% 7
2022
Q4 		$46.2M Hold
493,721
– – 1.66% 23
2022
Q3 		$61.9M Hold
493,721
– – 2.24% 12
2022
Q2 		$53.3M Hold
493,721
– – 2.03% 14
2022
Q1 		$77.7M Sell
493,721
-30,261
-6% -$3.89M 2.91% 10
2021
Q4 		$61.7M Buy
+523,982
New +$48.1M 2.1% 13
2021
Q1 		– Sell
-171,028
Closed -$40.6M – 100
2020
Q4 		$40.6M Buy
171,028
+4,020
+2% +$916K 1.43% 27
2020
Q3 		$39.8M Sell
167,008
-81,550
-33% -$14.4M 1.84% 18
2020
Q2 		$28.8M Buy
248,558
+15,149
+6% +$1.67M 1.49% 26
2020
Q1 		$19M Sell
233,409
-224,832
-49% -$18.6M 1.56% 26
2019
Q4 		$31.2M Sell
458,241
-622,818
-58% -$42.3M 1.49% 25
2019
Q3 		$80.1M Buy
1,081,059
+398,096
+58% +$30.8M 2.37% 9
2019
Q2 		$54M Buy
682,963
+140,930
+26% +$10.3M 1.03% 33
2019
Q1 		$40.6M Buy
542,033
+126,214
+30% +$10.8M 0.9% 38
2018
Q4 		$28.9M Buy
415,819
+179,878
+76% +$13.6M 0.77% 52
2018
Q3 		$22.3M Sell
235,941
-254,489
-52% -$22.2M 0.33% 87
2018
Q2 		$39.8M Buy
+490,430
New +$34.3M 0.62% 65

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

PFM Health Sciences's IRTC Position: Q2 2026 in Review

PFM Health Sciences opened a new position in iRhythm Holdings (IRTC) in Q2 2026: 65,196 shares worth $7.76M. The stake represents 0.67% of the portfolio and ranks #52 among its holdings. This is a return to the name: PFM Health Sciences previously reported a position in IRTC as recently as Q3 2025.

PFM Health Sciences first reported a position in IRTC in Q2 2018 and has held it in 22 quarters since. The position peaked at $80.1M in Q3 2019. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • PFM Health Sciences held 65,196 shares of iRhythm Holdings worth $7.76M as of Q2 2026.
  • iRhythm Holdings was a new PFM Health Sciences position in Q2 2026.
  • iRhythm Holdings made up 0.67% of PFM Health Sciences's portfolio in Q2 2026, its #52 holding.
  • PFM Health Sciences first reported a position in iRhythm Holdings in Q2 2018 and has held it in 22 quarters since.
  • PFM Health Sciences's iRhythm Holdings position peaked at $80.1M in Q3 2019.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on PFM Health Sciences's 13F filing for Q2 2026, filed 14 Aug 2026.