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Harbour Capital Advisors’s iRhythm Holdings IRTC Stock Holding History

Harbour Capital 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
2026
Q2 		$419K Buy
+3,605
New +$419K 0.08% 212
2026
Q1 		– Sell
-3,540
Closed -$620K – 300
2025
Q4 		$620K Hold
3,540
– – 0.13% 164
2025
Q3 		$629K Buy
3,540
+1,305
+58% +$207K 0.13% 162
2025
Q2 		$319K Buy
+2,235
New +$289K 0.07% 233

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

Harbour Capital Advisors's IRTC Position: Q2 2026 in Review

Harbour Capital Advisors opened a new position in iRhythm Holdings (IRTC) in Q2 2026: 3,605 shares worth $419K. The stake represents 0.08% of the portfolio and ranks #212 among its holdings. This is a return to the name: Harbour Capital Advisors previously reported a position in IRTC as recently as Q4 2025.

Harbour Capital Advisors first reported a position in IRTC in Q2 2025 and has held it in 4 quarters since. The position peaked at $629K in Q3 2025. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Harbour Capital Advisors held 3,605 shares of iRhythm Holdings worth $419K as of Q2 2026.
  • iRhythm Holdings was a new Harbour Capital Advisors position in Q2 2026.
  • iRhythm Holdings made up 0.08% of Harbour Capital Advisors's portfolio in Q2 2026, its #212 holding.
  • Harbour Capital Advisors first reported a position in iRhythm Holdings in Q2 2025 and has held it in 4 quarters since.
  • Harbour Capital Advisors's iRhythm Holdings position peaked at $629K in Q3 2025.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Harbour Capital Advisors's 13F filing for Q2 2026, filed 15 Jul 2026.