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North Star Investment Management’s iRhythm Holdings IRTC Stock Holding History

North Star Investment 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
2026
Q1 		$20.1K Hold
170
– – ﹤0.01% 890
2025
Q4 		$30.2K Hold
170
– – ﹤0.01% 774
2025
Q3 		$29.2K Hold
170
– – ﹤0.01% 761
2025
Q2 		$26.2K Hold
170
– – ﹤0.01% 748
2025
Q1 		$17.8K Hold
170
– – ﹤0.01% 774
2024
Q4 		$15.3K Buy
+170
New +$13.4K ﹤0.01% 798

Other funds holding IRTC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Holocene Advisors
Holocene Advisors New York $41.5B AUM 42.97% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

North Star Investment Management's IRTC Position: Q1 2026 in Review

North Star Investment Management held its iRhythm Holdings (IRTC) position steady in Q1 2026 at 170 shares worth $20.1K. The position accounts for ﹤0.01% of the portfolio, ranked #890.

North Star Investment Management first reported a position in IRTC in Q4 2024 and has held it in 6 quarters since. The position peaked at $30.2K in Q4 2025. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

  • North Star Investment Management held 170 shares of iRhythm Holdings worth $20.1K as of Q1 2026.
  • North Star Investment Management left its iRhythm Holdings share count unchanged in Q1 2026.
  • iRhythm Holdings made up ﹤0.01% of North Star Investment Management's portfolio in Q1 2026, its #890 holding.
  • North Star Investment Management first reported a position in iRhythm Holdings in Q4 2024 and has held it in 6 quarters since.
  • North Star Investment Management's iRhythm Holdings position peaked at $30.2K in Q4 2025.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on North Star Investment Management's 13F filing for Q1 2026, filed 23 Apr 2026.