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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
2023
Q3 		– Sell
-20,000
Closed -$2.09M – 80
2023
Q2 		$2.09M Buy
+20,000
New +$2.4M 0.08% 77

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.