Question 1

How many shares of MTSI does SEI INVESTMENTS CO own?

Accepted Answer

As of 2026-Q2, SEI INVESTMENTS CO holds 165,735 shares of MTSI (MACOM TECHNOLOGY SOLUTIONS H).

Question 2

What is SEI INVESTMENTS CO's MTSI position worth?

Accepted Answer

As of 2026-Q2, SEI INVESTMENTS CO's MTSI position is worth $63M.

Question 3

Is SEI INVESTMENTS CO buying or selling MTSI?

Accepted Answer

In 2026-Q2, SEI INVESTMENTS CO decreased their MTSI position (-24.4% change in shares).

Question 4

When did SEI INVESTMENTS CO first buy MTSI?

Accepted Answer

Based on available 13F filings, SEI INVESTMENTS CO first reported a position in MTSI in 2024-Q3. They have held the position across 31 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	165,735	-24.4%	$63M	0.1%	$380.37	0
2026-Q1	Increased	219,363	+1.1%	$48.7M	0.0%	$241.01	30
2025-Q4	Decreased	216,968	-15.2%	$37.2M	0.0%	$174.87	0
2025-Q3	Decreased	255,967	-6.4%	$31.9M	0.0%	$123.29	0
2025-Q2	Decreased	273,346	-3.2%	$39.2M	0.0%	$142.05	0
2025-Q1	Increased	282,474	+3.0%	$28.4M	0.0%	$98.47	30
2024-Q4	Decreased	274,285	-12.1%	$35.6M	0.0%	$129.87	0
2024-Q3	Decreased	311,887	-0.7%	$34.7M	0.0%	$111.52	0