Mariner
IBB icon

Mariner’s iShares Biotechnology ETF IBB Stock Holding History

Mariner’s Portfolio IBB Stock Details IBB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$7.36M Buy
43,563
+4,663
+12% +$797K 0.01% 886
2025
Q4 		$6.57M Buy
38,900
+6,719
+21% +$1.09M 0.01% 885
2025
Q3 		$4.65M Buy
32,181
+4,308
+15% +$588K 0.01% 964
2025
Q2 		$3.53M Sell
27,873
-5,800
-17% -$712K 0.01% 1024
2025
Q1 		$4.31M Sell
33,673
-1,437
-4% -$195K 0.01% 872
2024
Q4 		$4.64M Buy
35,110
+6,508
+23% +$915K 0.01% 828
2024
Q3 		$4.16M Sell
28,602
-1,731
-6% -$250K 0.01% 853
2024
Q2 		$4.16M Sell
30,333
-18,910
-38% -$2.52M 0.01% 798
2024
Q1 		$6.76M Buy
49,243
+14,344
+41% +$1.96M 0.01% 630
2023
Q4 		$4.74M Buy
34,899
+644
+2% +$78.6K 0.01% 698
2023
Q3 		$4.19M Buy
34,255
+6,978
+26% +$887K 0.01% 700
2023
Q2 		$3.46M Buy
27,277
+2,901
+12% +$377K 0.01% 775
2023
Q1 		$3.15M Buy
24,376
+708
+3% +$92.7K 0.01% 778
2022
Q4 		$3.11M Sell
23,668
-1,354
-5% -$175K 0.01% 752
2022
Q3 		$2.93M Buy
25,022
+4,734
+23% +$588K 0.01% 654
2022
Q2 		$2.39M Sell
20,288
-823
-4% -$97.7K 0.01% 659
2022
Q1 		$2.75M Buy
21,111
+964
+5% +$126K 0.01% 646
2021
Q4 		$3.08M Buy
20,147
+2,661
+15% +$412K 0.01% 544
2021
Q3 		$2.83M Buy
17,486
+363
+2% +$61.1K 0.01% 461
2021
Q2 		$2.8M Sell
17,123
-8,488
-33% -$1.31M 0.02% 412
2021
Q1 		$3.86M Sell
25,611
-103,053
-80% -$16.4M 0.03% 347
2020
Q4 		$19.5M Buy
128,664
+6,573
+5% +$939K 0.15% 158
2020
Q3 		$16.5M Buy
122,091
+7,086
+6% +$961K 0.16% 152
2020
Q2 		$15.7M Buy
115,005
+100,973
+720% +$12.9M 0.16% 152
2020
Q1 		$1.52M Buy
+14,032
New +$1.62M 0.02% 403
2019
Q4 		– Sell
-13,088
Closed -$1.3M – 709
2019
Q3 		$1.3M Sell
13,088
-72,284
-85% -$7.57M 0.02% 436
2019
Q2 		$9.31M Sell
85,372
-8,777
-9% -$934K 0.11% 177
2019
Q1 		$2.74M Buy
94,149
+71,699
+319% +$7.86M 0.04% 332
2018
Q4 		$2.17M Sell
22,450
-2,083
-8% -$221K 0.04% 321
2018
Q3 		$2.99M Sell
24,533
-673
-3% -$79.3K 0.08% 228
2018
Q2 		$2.77M Buy
25,206
+2,174
+9% +$233K 0.08% 226
2018
Q1 		$2.46M Buy
23,032
+3,178
+16% +$352K 0.09% 193
2017
Q4 		$2.12M Buy
19,854
+10,686
+117% +$1.14M 0.08% 198
2017
Q3 		$1.02M Buy
+9,168
New +$980K 0.05% 255
2017
Q1 		– Sell
-22,671
Closed -$2M – 602
2016
Q4 		$2M Sell
22,671
-10,416
-31% -$948K 0.09% 183
2016
Q3 		$3.19M Sell
33,087
-17,988
-35% -$1.71M 0.15% 124
2016
Q2 		$4.38M Buy
51,075
+3,393
+7% +$304K 0.24% 88
2016
Q1 		$4.14M Buy
47,682
+22,320
+88% +$2M 0.25% 82
2015
Q4 		$2.86M Buy
25,362
+23,115
+1,029% +$2.51M 0.18% 116
2015
Q3 		$227K Sell
2,247
-5,592
-71% -$671K 0.01% 451
2015
Q2 		$964K Buy
7,839
+5,592
+249% +$669K 0.04% 256
2015
Q1 		$257K Hold
2,247
– – 0.02% 332
2014
Q4 		$227K Buy
+2,247
New +$218K 0.02% 340

Other funds holding IBB

Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Citigroup
Citigroup New York $235B AUM 32.99% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $206B AUM 31.61% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $374B AUM 17.66% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
CB
Commerce Bank Kansas City, Missouri $20.7B AUM 23.76% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

Mariner's IBB Position: Q1 2026 in Review

Mariner increased its iShares Biotechnology ETF (IBB) stake by 12% in Q1 2026, buying an estimated $797K and bringing the position to 43,563 shares worth $7.36M. The position accounts for 0.01% of the portfolio, ranked #886.

Mariner first reported a position in IBB in Q4 2014 and has held it in 43 quarters since. The position peaked at $19.5M in Q4 2020. 917 funds tracked by Wall St. Rank hold IBB as of Q1 2026.

  • Mariner held 43,563 shares of iShares Biotechnology ETF worth $7.36M as of Q1 2026.
  • Mariner bought 4,663 iShares Biotechnology ETF shares in Q1 2026, an estimated $797K.
  • iShares Biotechnology ETF made up 0.01% of Mariner's portfolio in Q1 2026, its #886 holding.
  • Mariner first reported a position in iShares Biotechnology ETF in Q4 2014 and has held it in 43 quarters since.
  • Mariner's iShares Biotechnology ETF position peaked at $19.5M in Q4 2020.
  • 917 funds tracked by Wall St. Rank held iShares Biotechnology ETF as of Q1 2026.

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