Millennium Management’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
2025
Q1
Sell
-294,000
Closed -$38.9M 6104
2024
Q4
$38.9M Buy
+294,000
New +$41.3M 0.02% 954
2024
Q3
Sell
-8,600
Closed -$1.18M 6258
2024
Q2
$1.18M Sell
8,600
-31,700
-79% -$4.23M ﹤0.01% 3992
2024
Q1
$5.53M Sell
40,300
-54,500
-57% -$7.44M ﹤0.01% 2762
2023
Q4
$12.9M Sell
94,800
-313,000
-77% -$38.2M 0.01% 1948
2023
Q3
$49.9M Buy
407,800
+309,400
+314% +$39.3M 0.03% 710
2023
Q2
$12.5M Sell
98,400
-61,300
-38% -$7.96M 0.01% 1791
2023
Q1
$20.6M Sell
159,700
-128,000
-44% -$16.8M 0.01% 1313
2022
Q4
$37.8M Sell
287,700
-24,500
-8% -$3.17M 0.02% 942
2022
Q3
$36.5M Sell
312,200
-70,800
-18% -$8.79M 0.02% 874
2022
Q2
$45.1M Sell
383,000
-235,500
-38% -$28M 0.03% 719
2022
Q1
$80.6M Sell
618,500
-45,700
-7% -$5.95M 0.04% 437
2021
Q4
$101M Buy
664,200
+23,100
+4% +$3.58M 0.05% 355
2021
Q3
$104M Buy
641,100
+115,900
+22% +$19.5M 0.06% 300
2021
Q2
$85.9M Buy
525,200
+232,000
+79% +$35.7M 0.05% 372
2021
Q1
$44.1M Sell
293,200
-1,336,200
-82% -$212M 0.03% 550
2020
Q4
$247M Buy
1,629,400
+348,000
+27% +$49.7M 0.18% 74
2020
Q3
$174K Buy
1,281,400
+240,900
+23% +$32.7M 0.21% 60
2020
Q2
$142M Sell
1,040,500
-131,100
-11% -$16.7M 0.19% 62
2020
Q1
$126M Sell
1,171,600
-504,400
-30% -$58.1M 0.28% 45
2019
Q4
$202M Buy
1,676,000
+58,000
+4% +$6.47M 0.25% 43
2019
Q3
$161M Buy
1,618,000
+496,800
+44% +$52M 0.25% 49
2019
Q2
$122M Buy
1,121,200
+470,100
+72% +$50M 0.18% 93
2019
Q1
$72.8M Buy
651,100
+109,900
+20% +$12.1M 0.11% 228
2018
Q4
$52.2M Sell
541,200
-66,400
-11% -$7.05M 0.08% 325
2018
Q3
$74.1M Buy
607,600
+203,300
+50% +$23.9M 0.09% 270
2018
Q2
$44.4M Buy
404,300
+384,300
+1,922% +$41.1M 0.06% 459
2018
Q1
$2.13M Buy
+20,000
New +$2.22M ﹤0.01% 2269
2016
Q4
Sell
-120,000
Closed -$11.6M 3494
2016
Q3
$11.6M Buy
+120,000
New +$11.4M 0.02% 855
2015
Q2
Sell
-30,000
Closed -$3.43M 3554
2015
Q1
$3.43M Buy
+30,000
New +$3.31M 0.01% 1629

Other funds holding IBB

Millennium Management's IBB Position: Q1 2026 in Review

Millennium Management reduced its iShares Biotechnology ETF (IBB) stake by 83% in Q1 2026, selling an estimated $14M and leaving 17,349 shares worth $2.93M. The position accounts for ﹤0.01% of the portfolio, ranked #3492.

Millennium Management first reported a position in IBB in Q4 2013 and has held it in 45 quarters since. The position peaked at $86M in Q2 2021. 917 funds tracked by Wall St. Rank hold IBB as of Q1 2026.

  • Millennium Management held 17,349 shares of iShares Biotechnology ETF worth $2.93M as of Q1 2026.
  • Millennium Management sold 81,799 iShares Biotechnology ETF shares in Q1 2026, an estimated $14M.
  • iShares Biotechnology ETF made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #3492 holding.
  • Millennium Management first reported a position in iShares Biotechnology ETF in Q4 2013 and has held it in 45 quarters since.
  • Millennium Management's iShares Biotechnology ETF position peaked at $86M in Q2 2021.
  • 917 funds tracked by Wall St. Rank held iShares Biotechnology ETF as of Q1 2026.

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