Question 1

How many shares of ON SEMICONDUCTOR CORP does Calamos Advisors LLC own?

Accepted Answer

As of 2026-Q2, Calamos Advisors LLC holds 25.1M shares of ON SEMICONDUCTOR CORP (ON SEMICONDUCTOR CORP).

Question 2

What is Calamos Advisors LLC's ON SEMICONDUCTOR CORP position worth?

Accepted Answer

As of 2026-Q2, Calamos Advisors LLC's ON SEMICONDUCTOR CORP position is worth $45.4M.

Question 3

Is Calamos Advisors LLC buying or selling ON SEMICONDUCTOR CORP?

Accepted Answer

In 2026-Q2, Calamos Advisors LLC decreased their ON SEMICONDUCTOR CORP position (-41.2% change in shares).

Question 4

When did Calamos Advisors LLC first buy ON SEMICONDUCTOR CORP?

Accepted Answer

Based on available 13F filings, Calamos Advisors LLC first reported a position in ON SEMICONDUCTOR CORP in 2024-Q3. They have held the position across 17 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	25.1M	-41.2%	$45.4M	0.2%	—	0
2026-Q1	Increased	42.8M	+53.5%	$55.2M	0.2%	—	49
2025-Q4	Increased	27.9M	+0.1%	$33.3M	0.1%	—	34
2025-Q3	Decreased	27.8M	-0.2%	$31.7M	0.1%	—	0
2025-Q2	Decreased	27.9M	-26.4%	$33.1M	0.1%	—	0
2025-Q1	Increased	37.9M	+3.6%	$40M	0.2%	—	36
2024-Q4	Decreased	36.6M	-49.0%	$47.9M	0.2%	—	0
2024-Q3	Decreased	71.8M	-0.1%	$105.4M	0.5%	—	0

ONON SEMICONDUCTOR CORP