Calamos Advisors LLC

Position in LSTR — Landstar System Inc

CIK 1316507 NAPERVILLE, IL

Position in LSTR

as of Mar 31, 2026 · filed May 4, 2026 Compact

Position Value

$320,139

-$2,601,141 QoQ

Shares Held

1,997

-91.4% QoQ

Ownership

0.006%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

3 quarters on record

Voting authority Sole 8% Shared 0% None 92%

Industrials · as of Mar 31, 2026

Calamos Advisors LLC holds $13,430,274 across 4 Integrated Freight & Logistics names. LSTR ranks #3 (2.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	UPS	United Parcel Service Inc	121,400	$11,943,332
2	CHRW	C. H. Robinson Worldwide, Inc.	5,278	$876,517
3	LSTR	Landstar System Inc This page	1,997	$320,139
4	FDX	Fedex Corp	815	$290,286

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$320,139	1,997	-91.4%	Shares	Sole	2026-05-04
2020-09-30	$2,921,280	23,279	+105.2%	Shares	Other	2020-10-26
2020-03-31	$1,087,531	11,345	—	Shares	Other	2020-04-28
No filing history on record for this holder in this stock.