AllianceBernstein
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AllianceBernstein’s iRhythm Holdings IRTC Stock Holding History

AllianceBernstein’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 		$6.44M Sell
36,299
-1,190
-3% -$172K ﹤0.01% 1420
2025
Q4 		$6.65M Hold
37,489
– – ﹤0.01% 1406
2025
Q3 		$6.45M Buy
37,489
+95
+0.3% +$15.1K ﹤0.01% 1407
2025
Q2 		$5.76M Buy
37,394
+547
+1% +$70.7K ﹤0.01% 1419
2025
Q1 		$3.86M Sell
36,847
-2,870
-7% -$304K ﹤0.01% 1550
2024
Q4 		$3.58M Sell
39,717
-1,172,754
-97% -$92.1M ﹤0.01% 1654
2024
Q3 		$90M Sell
1,212,471
-55,425
-4% -$4.41M 0.03% 450
2024
Q2 		$136M Buy
1,267,896
+32,978
+3% +$3.37M 0.05% 287
2024
Q1 		$143M Sell
1,234,918
-52,732
-4% -$5.93M 0.05% 305
2023
Q4 		$138M Sell
1,287,650
-88,179
-6% -$7.68M 0.05% 299
2023
Q3 		$130M Buy
1,375,829
+288,553
+27% +$29.3M 0.06% 294
2023
Q2 		$113M Sell
1,087,276
-41,113
-4% -$4.94M 0.05% 359
2023
Q1 		$140M Sell
1,128,389
-95,840
-8% -$10.4M 0.06% 299
2022
Q4 		$115M Sell
1,224,229
-81,780
-6% -$8.9M 0.05% 341
2022
Q3 		$164M Buy
1,306,009
+169,011
+15% +$24.4M 0.08% 227
2022
Q2 		$123M Buy
1,136,998
+8,621
+0.8% +$1.14M 0.06% 299
2022
Q1 		$178M Buy
1,128,377
+1,079,912
+2,228% +$139M 0.07% 264
2021
Q4 		$5.7M Sell
48,465
-300
-0.6% -$27.5K ﹤0.01% 1546
2021
Q3 		$2.86M Sell
48,765
-66,680
-58% -$3.53M ﹤0.01% 1947
2021
Q2 		$7.66M Sell
115,445
-767,956
-87% -$60.9M ﹤0.01% 1374
2021
Q1 		$123M Sell
883,401
-151,914
-15% -$27.2M 0.05% 354
2020
Q4 		$246M Sell
1,035,315
-16,816
-2% -$3.83M 0.12% 159
2020
Q3 		$251M Sell
1,052,131
-528,838
-33% -$93.6M 0.13% 132
2020
Q2 		$183M Sell
1,580,969
-108,641
-6% -$12M 0.11% 165
2020
Q1 		$137M Buy
1,689,610
+789,735
+88% +$65.5M 0.1% 177
2019
Q4 		$61.3M Buy
899,875
+91,357
+11% +$6.2M 0.03% 495
2019
Q3 		$59.9M Buy
808,518
+6,962
+0.9% +$539K 0.04% 475
2019
Q2 		$63.4M Buy
801,556
+78,455
+11% +$5.71M 0.04% 470
2019
Q1 		$54.2M Sell
723,101
-140,007
-16% -$12M 0.04% 501
2018
Q4 		$60M Buy
863,108
+39,197
+5% +$2.97M 0.04% 407
2018
Q3 		$78M Sell
823,911
-26,606
-3% -$2.32M 0.05% 380
2018
Q2 		$69M Sell
850,517
-76,651
-8% -$5.36M 0.05% 411
2018
Q1 		$58.4M Sell
927,168
-88,958
-9% -$5.51M 0.04% 445
2017
Q4 		$57M Buy
1,016,126
+13,236
+1% +$692K 0.04% 447
2017
Q3 		$52M Buy
1,002,890
+118,904
+13% +$5.38M 0.04% 471
2017
Q2 		$37.6M Buy
883,986
+765,218
+644% +$27.9M 0.03% 549
2017
Q1 		$4.47M Buy
118,768
+22,396
+23% +$771K ﹤0.01% 1250
2016
Q4 		$2.89M Buy
+96,372
New +$2.6M ﹤0.01% 1571

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

AllianceBernstein's IRTC Position: Q1 2026 in Review

AllianceBernstein reduced its iRhythm Holdings (IRTC) stake by 3.2% in Q1 2026, selling an estimated $172K and leaving 36,299 shares worth $6.44M. The position accounts for ﹤0.01% of the portfolio, ranked #1420.

AllianceBernstein first reported a position in IRTC in Q4 2016 and has held it in 38 quarters since. The position peaked at $251M in Q3 2020. 304 funds tracked by Wall St. Rank hold IRTC as of Q1 2026.

  • AllianceBernstein held 36,299 shares of iRhythm Holdings worth $6.44M as of Q1 2026.
  • AllianceBernstein sold 1,190 iRhythm Holdings shares in Q1 2026, an estimated $172K.
  • iRhythm Holdings made up ﹤0.01% of AllianceBernstein's portfolio in Q1 2026, its #1420 holding.
  • AllianceBernstein first reported a position in iRhythm Holdings in Q4 2016 and has held it in 38 quarters since.
  • AllianceBernstein's iRhythm Holdings position peaked at $251M in Q3 2020.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q1 2026.

Based on AllianceBernstein's 13F filing for Q1 2026, filed 15 May 2026.