Comerica Bank
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Comerica Bank’s iRhythm Holdings IRTC Stock Holding History

Comerica Bank’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
Q4 		$2.67M Sell
15,021
-13,381
-47% -$2.37M 0.01% 971
2025
Q3 		$4.88M Buy
28,402
+864
+3% +$137K 0.02% 690
2025
Q2 		$4.24M Sell
27,538
-34,690
-56% -$4.48M 0.02% 752
2025
Q1 		$6.51M Sell
62,228
-11,982
-16% -$1.27M 0.03% 553
2024
Q4 		$6.69M Buy
74,210
+35,687
+93% +$2.8M 0.03% 567
2024
Q3 		$2.86M Sell
38,523
-6,615
-15% -$527K 0.01% 976
2024
Q2 		$4.86M Buy
45,138
+6,175
+16% +$631K 0.02% 695
2024
Q1 		$4.52M Buy
38,963
+38,204
+5,033% +$4.3M 0.02% 768
2023
Q4 		$81.1K Buy
759
+231
+44% +$20.1K ﹤0.01% 2573
2023
Q3 		$49.8K Buy
+528
New +$53.7K ﹤0.01% 2709
2021
Q1 		– Sell
-976
Closed -$247K – 2351
2020
Q4 		$247K Sell
976
-32
-3% -$7.29K ﹤0.01% 2188
2020
Q3 		$222K Buy
+1,008
New +$178K ﹤0.01% 2161

Other funds holding IRTC

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $26.9B AUM 34.44% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Comerica Bank's IRTC Position: Q4 2025 in Review

Comerica Bank reduced its iRhythm Holdings (IRTC) stake by 47% in Q4 2025, selling an estimated $2.37M and leaving 15,021 shares worth $2.67M. The position accounts for 0.01% of the portfolio, ranked #971.

Comerica Bank first reported a position in IRTC in Q3 2020 and has held it in 12 quarters since. The position peaked at $6.69M in Q4 2024. 333 funds tracked by Wall St. Rank hold IRTC as of Q4 2025.

  • Comerica Bank held 15,021 shares of iRhythm Holdings worth $2.67M as of Q4 2025.
  • Comerica Bank sold 13,381 iRhythm Holdings shares in Q4 2025, an estimated $2.37M.
  • iRhythm Holdings made up 0.01% of Comerica Bank's portfolio in Q4 2025, its #971 holding.
  • Comerica Bank first reported a position in iRhythm Holdings in Q3 2020 and has held it in 12 quarters since.
  • Comerica Bank's iRhythm Holdings position peaked at $6.69M in Q4 2024.
  • 333 funds tracked by Wall St. Rank held iRhythm Holdings as of Q4 2025.

Based on Comerica Bank's 13F filing for Q4 2025, filed 29 Jan 2026.