Susquehanna International Group
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Susquehanna International Group’s iRhythm Holdings IRTC Stock Holding History

Susquehanna International Group’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 		$2.11M Sell
17,900
-7,300
-29% -$1.05M ﹤0.01% 6059
2025
Q4 		$4.47M Sell
25,200
-18,100
-42% -$3.21M ﹤0.01% 4201
2025
Q3 		$7.45M Buy
43,300
+6,800
+19% +$1.08M ﹤0.01% 3453
2025
Q2 		$5.62M Sell
36,500
-9,100
-20% -$1.18M ﹤0.01% 3757
2025
Q1 		$4.77M Buy
45,600
+5,100
+13% +$540K ﹤0.01% 3740
2024
Q4 		$3.65M Sell
40,500
-77,500
-66% -$6.09M ﹤0.01% 4100
2024
Q3 		$8.76M Buy
118,000
+67,800
+135% +$5.4M ﹤0.01% 2795
2024
Q2 		$5.4M Sell
50,200
-14,300
-22% -$1.46M ﹤0.01% 3321
2024
Q1 		$7.48M Buy
64,500
+12,100
+23% +$1.36M ﹤0.01% 3030
2023
Q4 		$5.61M Sell
52,400
-28,000
-35% -$2.44M ﹤0.01% 3518
2023
Q3 		$7.58M Buy
80,400
+32,100
+66% +$3.26M ﹤0.01% 2916
2023
Q2 		$5.04M Sell
48,300
-24,600
-34% -$2.95M ﹤0.01% 3528
2023
Q1 		$9.04M Buy
72,900
+35,800
+96% +$3.88M ﹤0.01% 2591
2022
Q4 		$3.48M Sell
37,100
-43,000
-54% -$4.68M ﹤0.01% 3787
2022
Q3 		$10M Buy
80,100
+33,200
+71% +$4.79M ﹤0.01% 2142
2022
Q2 		$5.07M Sell
46,900
-42,100
-47% -$5.58M ﹤0.01% 3166
2022
Q1 		$14M Buy
89,000
+14,700
+20% +$1.89M ﹤0.01% 2113
2021
Q4 		$8.74M Sell
74,300
-13,500
-15% -$1.24M ﹤0.01% 2914
2021
Q3 		$5.14M Buy
87,800
+31,200
+55% +$1.65M ﹤0.01% 3904
2021
Q2 		$3.75M Sell
56,600
-20,100
-26% -$1.59M ﹤0.01% 4560
2021
Q1 		$10.7M Buy
76,700
+32,800
+75% +$5.88M ﹤0.01% 2675
2020
Q4 		$10.4M Sell
43,900
-42,000
-49% -$9.57M ﹤0.01% 2444
2020
Q3 		$20.5M Buy
85,900
+47,700
+125% +$8.44M ﹤0.01% 1461
2020
Q2 		$4.43M Buy
38,200
+14,600
+62% +$1.61M ﹤0.01% 3169
2020
Q1 		$1.92M Sell
23,600
-50,700
-68% -$4.2M ﹤0.01% 4044
2019
Q4 		$5.06M Buy
74,300
+64,700
+674% +$4.39M ﹤0.01% 2953
2019
Q3 		$711K Sell
9,600
-4,000
-29% -$310K ﹤0.01% 6491
2019
Q2 		$1.07M Sell
13,600
-13,600
-50% -$990K ﹤0.01% 5483
2019
Q1 		$2.04M Buy
27,200
+15,600
+134% +$1.33M ﹤0.01% 3709
2018
Q4 		$806K Sell
11,600
-71,400
-86% -$5.41M ﹤0.01% 5095
2018
Q3 		$7.86M Sell
83,000
-17,900
-18% -$1.56M ﹤0.01% 2170
2018
Q2 		$8.19M Buy
100,900
+39,400
+64% +$2.75M ﹤0.01% 2149
2018
Q1 		$3.87M Buy
61,500
+29,800
+94% +$1.84M ﹤0.01% 2874
2017
Q4 		$1.78M Buy
31,700
+26,000
+456% +$1.36M ﹤0.01% 4122
2017
Q3 		$296K Buy
+5,700
New +$258K ﹤0.01% 7421

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

Susquehanna International Group's IRTC Position: Q1 2026 in Review

Susquehanna International Group increased its iRhythm Holdings (IRTC) stake by 407% in Q1 2026, buying an estimated $2.8M and bringing the position to 24,151 shares worth $2.85M. The position accounts for ﹤0.01% of the portfolio, ranked #5372.

Susquehanna International Group first reported a position in IRTC in Q1 2019 and has held it in 28 quarters since. The position peaked at $9.96M in Q2 2025. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

  • Susquehanna International Group held 24,151 shares of iRhythm Holdings worth $2.85M as of Q1 2026.
  • Susquehanna International Group bought 19,392 iRhythm Holdings shares in Q1 2026, an estimated $2.8M.
  • iRhythm Holdings made up ﹤0.01% of Susquehanna International Group's portfolio in Q1 2026, its #5372 holding.
  • Susquehanna International Group first reported a position in iRhythm Holdings in Q1 2019 and has held it in 28 quarters since.
  • Susquehanna International Group's iRhythm Holdings position peaked at $9.96M in Q2 2025.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on Susquehanna International Group's 13F filing for Q1 2026, filed 15 May 2026.