Walleye Trading
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Walleye Trading’s iRhythm Holdings IRTC Stock Holding History

Walleye Trading’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 		$260K Buy
+2,200
New +$317K ﹤0.01% 2966
2025
Q4 		– Sell
-1,400
Closed -$241K – 4587
2025
Q3 		$241K Buy
1,400
+100
+8% +$15.9K ﹤0.01% 3233
2025
Q2 		$200K Sell
1,300
-11,300
-90% -$1.46M ﹤0.01% 3237
2025
Q1 		$1.32M Buy
12,600
+10,800
+600% +$1.14M ﹤0.01% 1891
2024
Q4 		$162K Buy
1,800
+1,200
+200% +$94.3K ﹤0.01% 3327
2024
Q3 		$44.5K Buy
+600
New +$47.8K ﹤0.01% 3555
2024
Q2 		– Sell
-2,000
Closed -$232K – 4592
2024
Q1 		$232K Sell
2,000
-1,600
-44% -$180K ﹤0.01% 3345
2023
Q4 		$385K Sell
3,600
-400
-10% -$34.9K ﹤0.01% 3290
2023
Q3 		$377K Sell
4,000
-800
-17% -$81.3K ﹤0.01% 3193
2023
Q2 		$501K Sell
4,800
-800
-14% -$96.1K ﹤0.01% 2744
2023
Q1 		$695K Buy
+5,600
New +$607K ﹤0.01% 2519
2022
Q3 		– Sell
-9,600
Closed -$1.04M – 5261
2022
Q2 		$1.04M Buy
+9,600
New +$1.27M ﹤0.01% 2184
2022
Q1 		– Sell
-200
Closed -$24K – 5583
2021
Q4 		$24K Buy
200
+100
+100% +$9.17K ﹤0.01% 4878
2021
Q3 		$6K Sell
100
-400
-80% -$21.2K ﹤0.01% 5050
2021
Q2 		$33K Sell
500
-5,100
-91% -$404K ﹤0.01% 4734
2021
Q1 		$778K Buy
5,600
+2,800
+100% +$502K ﹤0.01% 2175
2020
Q4 		$664K Buy
2,800
+200
+8% +$45.6K ﹤0.01% 2404
2020
Q3 		$619K Buy
+2,600
New +$460K ﹤0.01% 2052
2020
Q2 		– Sell
-5,700
Closed -$464K – 4414
2020
Q1 		$464K Buy
5,700
+5,500
+2,750% +$456K ﹤0.01% 1929
2019
Q4 		$14K Sell
200
-4,100
-95% -$278K ﹤0.01% 4035
2019
Q3 		$319K Buy
4,300
+1,200
+39% +$93K ﹤0.01% 2535
2019
Q2 		$245K Buy
3,100
+2,100
+210% +$153K ﹤0.01% 2789
2019
Q1 		$75K Buy
+1,000
New +$85.5K ﹤0.01% 3583

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

Walleye Trading's IRTC Position: Q1 2026 in Review

Walleye Trading opened a new position in iRhythm Holdings (IRTC) in Q1 2026: 821 shares worth $96.9K. The stake represents ﹤0.01% of the portfolio and ranks #3471 among its holdings. This is a return to the name: Walleye Trading previously reported a position in IRTC as recently as Q3 2025.

Walleye Trading first reported a position in IRTC in Q3 2019 and has held it in 12 quarters since. The position peaked at $2.06M in Q4 2021. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

  • Walleye Trading held 821 shares of iRhythm Holdings worth $96.9K as of Q1 2026.
  • iRhythm Holdings was a new Walleye Trading position in Q1 2026.
  • iRhythm Holdings made up ﹤0.01% of Walleye Trading's portfolio in Q1 2026, its #3471 holding.
  • Walleye Trading first reported a position in iRhythm Holdings in Q3 2019 and has held it in 12 quarters since.
  • Walleye Trading's iRhythm Holdings position peaked at $2.06M in Q4 2021.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.