Optiver Holding B.V.

Position in FSTR — Foster L B Co

CIK 1859606 AMSTERDAM, P7

Position in FSTR

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$2,790

-$1,629 QoQ

Shares Held

100

-39.0% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 0% Shared 100% None 0%

Industrials · as of Mar 31, 2026

Optiver Holding B.V. holds $276,897 across 4 Railroads names. FSTR ranks #3 (1.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WAB	Westinghouse Air Brake Technologies Corp	1,057	$264,154
2	TRN	Trinity Industries Inc	271	$8,720
3	FSTR	Foster L B Co This page	100	$2,790
4	CNI	Canadian National Railway Co	12	$1,233

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,790	100	-39.0%	Shares	Defined	2026-05-15
2025-12-31	$4,419	164	0.0%	Shares	Defined	2026-02-17
2025-09-30	$4,419	164	—	Shares	Defined	2025-11-10
No filing history on record for this holder in this stock.