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
2025
Q4 		– Sell
-100
Closed -$17.2K – 4589
2025
Q3 		$17.2K Buy
+100
New +$15.9K ﹤0.01% 4160
2025
Q2 		– Sell
-300
Closed -$31.4K – 4449
2025
Q1 		$31.4K Sell
300
-2,500
-89% -$265K ﹤0.01% 3721
2024
Q4 		$252K Buy
2,800
+2,100
+300% +$165K ﹤0.01% 3105
2024
Q3 		$52K Buy
+700
New +$55.8K ﹤0.01% 3526
2024
Q2 		– Sell
-2,000
Closed -$232K – 4594
2024
Q1 		$232K Buy
2,000
+1,200
+150% +$135K ﹤0.01% 3346
2023
Q4 		$85.6K Sell
800
-2,300
-74% -$200K ﹤0.01% 4201
2023
Q3 		$292K Sell
3,100
-30,400
-91% -$3.09M ﹤0.01% 3372
2023
Q2 		$3.49M Buy
33,500
+30,000
+857% +$3.6M 0.01% 1231
2023
Q1 		$434K Buy
3,500
+3,400
+3,400% +$369K ﹤0.01% 2917
2022
Q4 		$9.37K Buy
+100
New +$10.9K ﹤0.01% 4486
2021
Q4 		– Sell
-7,700
Closed -$451K – 5582
2021
Q3 		$451K Buy
7,700
+7,600
+7,600% +$403K ﹤0.01% 3016
2021
Q2 		$7K Hold
100
– – ﹤0.01% 4982
2021
Q1 		$14K Sell
100
-200
-67% -$35.8K ﹤0.01% 4599
2020
Q4 		$71K Sell
300
-1,300
-81% -$296K ﹤0.01% 4065
2020
Q3 		$381K Buy
+1,600
New +$283K ﹤0.01% 2481
2020
Q2 		– Sell
-2,000
Closed -$163K – 4415
2020
Q1 		$163K Sell
2,000
-18,000
-90% -$1.49M ﹤0.01% 2783
2019
Q4 		$1.36M Buy
+20,000
New +$1.36M 0.01% 1538
2019
Q2 		– Sell
-2,900
Closed -$217K – 4255
2019
Q1 		$217K Buy
+2,900
New +$248K ﹤0.01% 2958

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.