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Semanteon Capital Management’s iRhythm Holdings IRTC Stock Holding History

Semanteon Capital 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
2025
Q3 		– Sell
-9,951
Closed -$1.53M – 207
2025
Q2 		$1.53M Sell
9,951
-360
-3% -$46.5K 2.31% 2
2025
Q1 		$1.08M Buy
+10,311
New +$1.09M 0.59% 66

Other funds holding IRTC

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $34.9B AUM 18.88% 1-Year Est. Return
EAM
Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Semanteon Capital Management's IRTC Position: Q3 2025 in Review

Semanteon Capital Management sold out of iRhythm Holdings (IRTC) in Q3 2025, closing a stake of 9,951 shares — an estimated $1.53M sold.

Semanteon Capital Management first reported a position in IRTC in Q1 2025 and held it in 2 quarters. The position peaked at $1.53M in Q2 2025. 337 funds tracked by Wall St. Rank hold IRTC as of Q3 2025.

  • Semanteon Capital Management reported no remaining iRhythm Holdings position as of Q3 2025 after selling out during the quarter.
  • Semanteon Capital Management sold 9,951 iRhythm Holdings shares in Q3 2025, an estimated $1.53M.
  • Semanteon Capital Management first reported a position in iRhythm Holdings in Q1 2025 and held it in 2 quarters.
  • Semanteon Capital Management's iRhythm Holdings position peaked at $1.53M in Q2 2025.
  • 337 funds tracked by Wall St. Rank held iRhythm Holdings as of Q3 2025.

Based on Semanteon Capital Management's 13F filing for Q3 2025, filed 10 Nov 2025.