CenterBook Partners LP

Position in ALK — Alaska Air Group, Inc.

CIK 1872738 GREENWICH, CT

Position in ALK

as of Mar 31, 2026 · filed May 5, 2026 Compact

Position Value

$9,496,081

+$6,366,918 QoQ

Shares Held

258,186

+315.0% QoQ

Ownership

0.232%

of shares outstanding

% of Portfolio

0.51%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2025

2 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

CenterBook Partners LP holds $11,824,285 across 3 Airlines names. ALK ranks #1 (80.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALK	Alaska Air Group, Inc. This page	258,186	$9,496,081
2	LUV	Southwest Airlines Co	54,715	$2,055,642
3	LTM	Latam Airlines Group S.A.	5,513	$272,562

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$9,496,081	258,186	+315.0%	Shares	Sole	2026-05-05
2025-12-31	$3,129,163	62,210	—	Shares	Sole	2026-02-11
No filing history on record for this holder in this stock.