Tower Research Capital (TRC)’s iRhythm Holdings IRTC Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $354K | Buy |
3,000
+1,994
| +198% | +$288K | 0.01% | 1183 |
|
|
2025
Q4 | $179K | Buy |
1,006
+233
| +30% | +$41.3K | ﹤0.01% | 1522 |
|
|
2025
Q3 | $133K | Sell |
773
-3,069
| -80% | -$488K | ﹤0.01% | 1789 |
|
|
2025
Q2 | $592K | Buy |
3,842
+2,873
| +296% | +$371K | 0.02% | 848 |
|
|
2025
Q1 | $101K | Sell |
969
-2,627
| -73% | -$278K | ﹤0.01% | 1763 |
|
|
2024
Q4 | $324K | Buy |
3,596
+3,403
| +1,763% | +$267K | 0.01% | 1350 |
|
|
2024
Q3 | $14.3K | Sell |
193
-5,269
| -96% | -$420K | ﹤0.01% | 3467 |
|
|
2024
Q2 | $588K | Buy |
5,462
+5,087
| +1,357% | +$520K | 0.01% | 1202 |
|
|
2024
Q1 | $43.5K | Sell |
375
-7,531
| -95% | -$847K | ﹤0.01% | 2380 |
|
|
2023
Q4 | $846K | Buy |
7,906
+7,265
| +1,133% | +$633K | 0.01% | 974 |
|
|
2023
Q3 | $60.4K | Sell |
641
-3,924
| -86% | -$399K | ﹤0.01% | 2388 |
|
|
2023
Q2 | $476K | Buy |
4,565
+3,615
| +381% | +$434K | 0.02% | 1022 |
|
|
2023
Q1 | $118K | Buy |
950
+394
| +71% | +$42.7K | ﹤0.01% | 1708 |
|
|
2022
Q4 | $52K | Sell |
556
-7,412
| -93% | -$807K | ﹤0.01% | 2317 |
|
|
2022
Q3 | $998K | Buy |
7,968
+6,911
| +654% | +$998K | 0.02% | 705 |
|
|
2022
Q2 | $114K | Sell |
1,057
-2,361
| -69% | -$313K | ﹤0.01% | 2182 |
|
|
2022
Q1 | $538K | Buy |
3,418
+2,651
| +346% | +$340K | 0.01% | 1100 |
|
|
2021
Q4 | $90K | Sell |
767
-906
| -54% | -$83.1K | ﹤0.01% | 2298 |
|
|
2021
Q3 | $98K | Buy |
1,673
+838
| +100% | +$44.4K | ﹤0.01% | 2416 |
|
|
2021
Q2 | $56K | Sell |
835
-1,109
| -57% | -$87.9K | ﹤0.01% | 2928 |
|
|
2021
Q1 | $270K | Buy |
1,944
+939
| +93% | +$168K | ﹤0.01% | 1753 |
|
|
2020
Q4 | $238K | Sell |
1,005
-22,571
| -96% | -$5.14M | 0.01% | 1587 |
|
|
2020
Q3 | $5.61M | Buy |
23,576
+19,696
| +508% | +$3.48M | 0.06% | 61 |
|
|
2020
Q2 | $449K | Buy |
+3,880
| New | +$428K | 0.02% | 1119 |
|
|
2020
Q1 | – | Sell |
-783
| Closed | -$53K | – | 3468 |
|
|
2019
Q4 | $53K | Sell |
783
-894
| -53% | -$60.7K | ﹤0.01% | 1303 |
|
|
2019
Q3 | $124K | Buy |
+1,677
| New | +$130K | 0.01% | 1224 |
|
|
2019
Q1 | – | Sell |
-697
| Closed | -$48K | – | 4027 |
|
|
2018
Q4 | $48K | Buy |
+697
| New | +$52.8K | ﹤0.01% | 1311 |
|
|
2018
Q2 | – | Sell |
-1,122
| Closed | -$71K | – | 3859 |
|
|
2018
Q1 | $71K | Buy |
+1,122
| New | +$69.5K | 0.01% | 1472 |
|
|
2017
Q4 | – | Sell |
-1,227
| Closed | -$64K | – | 3749 |
|
|
2017
Q3 | $64K | Buy |
1,227
+1,062
| +644% | +$48.1K | 0.01% | 1758 |
|
|
2017
Q2 | $7K | Buy |
+165
| New | +$6.01K | ﹤0.01% | 1814 |
|
|
2017
Q1 | – | Sell |
-344
| Closed | -$11K | – | 3473 |
|
|
2016
Q4 | $11K | Buy |
+344
| New | +$9.27K | ﹤0.01% | 2588 |
|
Other funds holding IRTC
VPM
RI
VCM
Tower Research Capital (TRC)'s IRTC Position: Q1 2026 in Review
Tower Research Capital (TRC) increased its iRhythm Holdings (IRTC) stake by 198% in Q1 2026, buying an estimated $288K and bringing the position to 3,000 shares worth $354K. The position accounts for 0.01% of the portfolio, ranked #1183.
Tower Research Capital (TRC) first reported a position in IRTC in Q4 2016 and has held it in 31 quarters since. The position peaked at $5.61M in Q3 2020. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.
- Tower Research Capital (TRC) held 3,000 shares of iRhythm Holdings worth $354K as of Q1 2026.
- Tower Research Capital (TRC) bought 1,994 iRhythm Holdings shares in Q1 2026, an estimated $288K.
- iRhythm Holdings made up 0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #1183 holding.
- Tower Research Capital (TRC) first reported a position in iRhythm Holdings in Q4 2016 and has held it in 31 quarters since.
- Tower Research Capital (TRC)'s iRhythm Holdings position peaked at $5.61M in Q3 2020.
- 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.
Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.