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Fox Run Management’s iRhythm Holdings IRTC Stock Holding History

Fox Run 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
Q2 		$999K Buy
8,401
+2,634
+46% +$306K 0.17% 184
2026
Q1 		$659K Buy
5,767
+1,334
+30% +$193K 0.12% 324
2025
Q4 		$787K Sell
4,433
-923
-17% -$164K 0.12% 309
2025
Q3 		$921K Sell
5,356
-140
-3% -$22.3K 0.14% 245
2025
Q2 		$846K Buy
5,496
+1,646
+43% +$213K 0.14% 245
2025
Q1 		$403K Buy
3,850
+13
+0.3% +$1.38K 0.06% 575
2024
Q4 		$346K Sell
3,837
-3,278
-46% -$258K 0.06% 574
2024
Q3 		$528K Buy
+7,115
New +$567K 0.12% 332
2023
Q1 		– Sell
-4,432
Closed -$415K – 794
2022
Q4 		$415K Buy
+4,432
New +$482K 0.17% 234
2022
Q3 		– Sell
-3,985
Closed -$430K – 720
2022
Q2 		$430K Buy
+3,985
New +$528K 0.21% 172
2021
Q4 		– Sell
-6,835
Closed -$400K – 580
2021
Q3 		$400K Buy
+6,835
New +$362K 0.25% 137

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

Fox Run Management's IRTC Position: Q2 2026 in Review

Fox Run Management increased its iRhythm Holdings (IRTC) stake by 46% in Q2 2026, buying an estimated $306K and bringing the position to 8,401 shares worth $999K. The position accounts for 0.17% of the portfolio, ranked #184.

Fox Run Management first reported a position in IRTC in Q3 2021 and has held it in 11 quarters since. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Fox Run Management held 8,401 shares of iRhythm Holdings worth $999K as of Q2 2026.
  • Fox Run Management bought 2,634 iRhythm Holdings shares in Q2 2026, an estimated $306K.
  • iRhythm Holdings made up 0.17% of Fox Run Management's portfolio in Q2 2026, its #184 holding.
  • Fox Run Management first reported a position in iRhythm Holdings in Q3 2021 and has held it in 11 quarters since.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Fox Run Management's 13F filing for Q2 2026, filed 4 Aug 2026.