Calamos Advisors LLC Ishares Biotechnology ETF Transaction History

Calamos Advisors LLC

$18.3 Billion
Q4 2025

A detailed history of Calamos Advisors LLC transactions in Ishares Biotechnology ETF stock. As of the latest transaction made, Calamos Advisors LLC holds 168,310 shares of IBB stock, worth $27.6 Million. This represents 0.15% of its overall portfolio holdings.

Number of Shares

168,310

Previous 139,120 20.98%

Holding current value

$27.6 Million

Previous $20.1 Million 37.59%

% of portfolio

0.15%

Previous 0.11%

16 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q4 2025 Jan 28, 2026	BUY	$148.51 - $164.96 $4.34 Million - $4.82 Million	29,190 Added 20.98%	168,310 $27.6 Million
Q3 2025 Oct 20, 2025	BUY	$127.63 - $144.37 $17.8 Million - $20.1 Million	139,120 New	139,120 $20.1 Million
Q4 2023 Jan 31, 2024	BUY	$112.41 - $137.03 $6.33 Million - $7.71 Million	56,295 New	56,295 $7.65 Million
Q2 2020 Jul 27, 2020	SELL	$103.79 - $138.65 $6.32 Million - $8.44 Million	-60,856 Closed	0 $0
Q1 2020 Apr 28, 2020	SELL	$94.39 - $123.48 $73,529 - $96,190	-779 Reduced 1.26%	60,856 $6.56 Million

Q4 2019 Jan 15, 2020	BUY	$97.24 - $123.5 $2.71 Million - $3.45 Million	27,905 Added 82.73%	61,635 $7.43 Million
Q3 2019 Oct 21, 2019	SELL	$99.3 - $105.55 $4.66 Million - $4.96 Million	-46,945 Reduced 58.19%	33,730 $3.36 Million
Q2 2019 Aug 07, 2019	SELL	N/A	-470 Reduced 0.58%	80,675 $8.8 Million
Q1 2019 Apr 12, 2019	BUY	N/A	27,340 Added 50.81%	81,145 $9.07 Million
Q4 2018 Jan 24, 2019	BUY	N/A	865 Added 1.63%	53,805 $5.19 Million
Q3 2018 Oct 22, 2018	SELL	N/A	-114,115 Reduced 68.31%	52,940 $6.46 Million
Q2 2018 Jul 17, 2018	BUY	N/A	235 Added 0.14%	167,055 $18.3 Million
Q1 2018 Apr 13, 2018	SELL	N/A	-24,385 Reduced 12.75%	166,820 $17.8 Million
Q4 2017 Feb 13, 2018	BUY	N/A	127,470 Added 200.0%	191,205 $20.4 Million
Q3 2017 Oct 25, 2017	BUY	N/A	23,065 Added 56.71%	63,735 $21.3 Million
Q2 2017 Aug 09, 2017	BUY	N/A	40,670	40,670 $12.6 Million

Others Institutions Holding IBB

# of Institutions

1,005

Shares Held

33.1M

Call Options Held

3.52M

Put Options Held

2.74M

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About ISHARES BIOTECHNOLOGY ETF

Ticker IBB
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Calamos Advisors LLC Ishares Biotechnology ETF Transaction History