Tower Research Capital (TRC)’s iShares Biotechnology ETF IBB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$6.07M Buy
35,945
+17,217
+92% +$2.94M 0.16% 125
2025
Q4
$3.16M Buy
18,728
+12,168
+185% +$1.98M 0.08% 225
2025
Q3
$947K Sell
6,560
-44,477
-87% -$6.07M 0.03% 535
2025
Q2
$6.46M Buy
51,037
+30,474
+148% +$3.74M 0.17% 97
2025
Q1
$2.61M Buy
20,563
+20,557
+342,617% +$2.79M 0.08% 219
2024
Q4
$793 Sell
6
-1,094
-99% -$154K ﹤0.01% 5167
2024
Q3
$160K Buy
1,100
+941
+592% +$136K ﹤0.01% 1827
2024
Q2
$21.8K Buy
159
+27
+20% +$3.6K ﹤0.01% 3707
2024
Q1
$18.1K Buy
132
+57
+76% +$7.78K ﹤0.01% 3083
2023
Q4
$10.2K Sell
75
-98,477
-100% -$12M ﹤0.01% 4281
2023
Q3
$12.1M Buy
98,552
+98,203
+28,138% +$12.5M 0.38% 38
2023
Q2
$44.3K Sell
349
-2,319
-87% -$301K ﹤0.01% 2671
2023
Q1
$345K Sell
2,668
-17,233
-87% -$2.26M 0.01% 1057
2022
Q4
$2.61M Sell
19,901
-78,476
-80% -$10.1M 0.11% 135
2022
Q3
$11.5M Buy
98,377
+95,819
+3,746% +$11.9M 0.19% 92
2022
Q2
$301K Sell
2,558
-6,390
-71% -$759K 0.01% 1478
2022
Q1
$1.17M Sell
8,948
-17,979
-67% -$2.34M 0.01% 729
2021
Q4
$4.11M Buy
26,927
+20,124
+296% +$3.12M 0.07% 233
2021
Q3
$1.1M Sell
6,803
-5,896
-46% -$992K 0.03% 488
2021
Q2
$2.08M Sell
12,699
-41,360
-77% -$6.37M 0.05% 293
2021
Q1
$8.14M Buy
+54,059
New +$8.59M 0.14% 128
2020
Q4
Sell
-34,723
Closed -$4.7M 5254
2020
Q3
$4.7M Buy
+34,723
New +$4.71M 0.05% 89
2020
Q2
Sell
-186
Closed -$20K 4848
2020
Q1
$20K Sell
186
-54,432
-100% -$6.27M ﹤0.01% 1712
2019
Q4
$6.58M Sell
54,618
-81,052
-60% -$9.04M 0.55% 17
2019
Q3
$13.5M Buy
135,670
+135,513
+86,314% +$14.2M 0.93% 10
2019
Q2
$17K Sell
157
-81
-34% -$8.62K ﹤0.01% 2273
2019
Q1
$27K Sell
238
-91,218
-100% -$10M ﹤0.01% 2108
2018
Q4
$8.82M Buy
91,456
+80,451
+731% +$8.54M 0.64% 20
2018
Q3
$1.34M Buy
11,005
+10,997
+137,463% +$1.29M 0.1% 159
2018
Q2
$1K Sell
8
-97
-92% -$10.4K ﹤0.01% 3481
2018
Q1
$11K Sell
105
-18,513
-99% -$2.05M ﹤0.01% 2431
2017
Q4
$1.99M Buy
18,618
+18,576
+44,229% +$1.99M 0.26% 75
2017
Q3
$5K Sell
42
-41,058
-100% -$4.39M ﹤0.01% 3308
2017
Q2
$4.25M Sell
41,100
-70,266
-63% -$6.92M 0.48% 31
2017
Q1
$10.9M Sell
111,366
-930
-0.8% -$89K 1.09% 12
2016
Q4
$9.93M Buy
+112,296
New +$10.2M 1.08% 5
2016
Q3
Sell
-311,910
Closed -$26.8M 3985
2016
Q2
$26.8M Buy
311,910
+172,230
+123% +$15.5M 2.56% 3
2016
Q1
$12.1M Buy
+139,680
New +$12.5M 1.81% 6
2015
Q4
Sell
-4,938
Closed -$499K 4715
2015
Q3
$499K Buy
+4,938
New +$592K 0.05% 155
2015
Q1
Sell
-2,247
Closed -$227K 4628
2014
Q4
$227K Buy
+2,247
New +$218K 0.02% 271
2014
Q3
Sell
-20,370
Closed -$1.75M 4609
2014
Q2
$1.75M Buy
+20,370
New +$1.6M 0.22% 53
2013
Q4
Sell
-57,546
Closed -$4.02M 4676
2013
Q3
$4.02M Sell
57,546
-47,007
-45% -$3.08M 0.43% 41
2013
Q2
$6.06M Buy
+104,553
New +$6.04M 0.49% 18

Other funds holding IBB

Tower Research Capital (TRC)'s IBB Position: Q1 2026 in Review

Tower Research Capital (TRC) increased its iShares Biotechnology ETF (IBB) stake by 92% in Q1 2026, buying an estimated $2.94M and bringing the position to 35,945 shares worth $6.07M. The position accounts for 0.16% of the portfolio, ranked #125.

Tower Research Capital (TRC) first reported a position in IBB in Q2 2013 and has held it in 43 quarters since. The position peaked at $26.8M in Q2 2016. 917 funds tracked by Wall St. Rank hold IBB as of Q1 2026.

  • Tower Research Capital (TRC) held 35,945 shares of iShares Biotechnology ETF worth $6.07M as of Q1 2026.
  • Tower Research Capital (TRC) bought 17,217 iShares Biotechnology ETF shares in Q1 2026, an estimated $2.94M.
  • iShares Biotechnology ETF made up 0.16% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #125 holding.
  • Tower Research Capital (TRC) first reported a position in iShares Biotechnology ETF in Q2 2013 and has held it in 43 quarters since.
  • Tower Research Capital (TRC)'s iShares Biotechnology ETF position peaked at $26.8M in Q2 2016.
  • 917 funds tracked by Wall St. Rank held iShares Biotechnology ETF as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.